// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.31.1
// source: chat.sql

package db

import (
	"context"

	"github.com/jackc/pgx/v5/pgtype"
)

const adoptOrphanOnboardingKickoff = `-- name: AdoptOrphanOnboardingKickoff :exec
UPDATE chat_message
SET task_id = $2
WHERE chat_session_id = $1
  AND role = 'user'
  AND message_kind = 'onboarding_kickoff'
  AND task_id IS NULL
`

type AdoptOrphanOnboardingKickoffParams struct {
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
	TaskID        pgtype.UUID `json:"task_id"`
}

// Hands the session's unowned kickoff row to the member's first real turn.
//
// The kickoff is written with no task_id (nothing runs for the opening any
// more), so it would never reach a runtime on its own. Adopting it into the
// first send's input batch is what carries the onboarding skill instruction and
// the profile block into the run that does the first real work — and, because
// the kickoff quotes the opening the member already read, what stops Mika from
// introducing herself a second time.
//
// Idempotent by construction: exactly one such row can exist per session, and
// the task_id IS NULL predicate means later sends adopt nothing.
func (q *Queries) AdoptOrphanOnboardingKickoff(ctx context.Context, arg AdoptOrphanOnboardingKickoffParams) error {
	_, err := q.db.Exec(ctx, adoptOrphanOnboardingKickoff, arg.ChatSessionID, arg.TaskID)
	return err
}

const advanceCancelledChatSessionPointer = `-- name: AdvanceCancelledChatSessionPointer :exec
UPDATE chat_session cs
SET session_id = t.session_id,
    runtime_id = t.runtime_id,
    work_dir   = COALESCE(t.work_dir, cs.work_dir),
    updated_at = now()
FROM agent_task_queue t
WHERE t.id = $1
  AND t.chat_session_id = cs.id
  AND t.status = 'cancelled'
  AND t.session_id IS NOT NULL
  AND t.runtime_id IS NOT NULL
  AND NOT EXISTS (
      SELECT 1 FROM agent_task_queue newer
      WHERE newer.chat_session_id = t.chat_session_id
        AND newer.id <> t.id
        AND newer.session_id IS NOT NULL
        AND newer.created_at > t.created_at
  )
`

// Moves a chat's resume pointer onto the session a CANCELLED task recorded
// (GH #6340).
//
// Cancellation is the one terminal state that never reports back: the daemon
// discards its result and only sends a cancel-ack, so neither CompleteTask nor
// FailTask — the only other writers of chat_session.session_id — ever runs. The
// claim handler reads this pointer BEFORE falling back to
// GetLastChatTaskSession, so on a chat that already has history a pointer left
// on the previous turn shadows the cancelled turn's session no matter what the
// fallback would have found.
//
// Two callers, one statement, because both are races the other cannot cover:
// the cancel path runs it inside the status-flip transaction (so no follow-up
// can observe `cancelled` while the pointer still names the older session), and
// the pin path runs it after a mid-flight pin lands on an already-cancelled row
// (Codex waits for its rollout, so the pin routinely arrives after the cancel —
// at which point the cancel path saw no session to publish).
//
// Everything it decides on is read from the task row inside the statement, so
// neither caller can act on a stale in-memory copy. The NOT EXISTS guard is what
// makes the late pin safe: a NEWER task on this chat that already recorded a
// session owns the pointer, and a straggler must not drag the conversation
// backwards onto the turn the user interrupted.
//
// The newer-task lookup depends on
// idx_agent_task_queue_chat_session (migration 472). Neither chat_pending_v3
// nor chat_terminal_resume can replace it: this guard spans both in-flight and
// terminal tasks and compares created_at; the broader index also serves the
// chat_session foreign-key delete lookup.
func (q *Queries) AdvanceCancelledChatSessionPointer(ctx context.Context, taskID pgtype.UUID) error {
	_, err := q.db.Exec(ctx, advanceCancelledChatSessionPointer, taskID)
	return err
}

const chatSessionHasPublicUserMessage = `-- name: ChatSessionHasPublicUserMessage :one
SELECT EXISTS (
    SELECT 1 FROM chat_message
    WHERE chat_session_id = $1
      AND role = 'user'
      AND message_kind != 'channel_command'
) AS has_public_user_message
`

func (q *Queries) ChatSessionHasPublicUserMessage(ctx context.Context, chatSessionID pgtype.UUID) (bool, error) {
	row := q.db.QueryRow(ctx, chatSessionHasPublicUserMessage, chatSessionID)
	var has_public_user_message bool
	err := row.Scan(&has_public_user_message)
	return has_public_user_message, err
}

const chatSessionHasUserMessage = `-- name: ChatSessionHasUserMessage :one
SELECT EXISTS (
    SELECT 1 FROM chat_message
    WHERE chat_session_id = $1 AND role = 'user'
) AS has_user_message
`

// Reports whether a session has any human (role='user') message yet. Used to
// scope the is_agent_intro self-introduction prompt to the very first,
// server-driven turn: an intro session starts with zero user messages, so the
// opening run gets the "introduce yourself" prompt. Once the creator replies,
// later turns in the same session must fall back to the normal reply prompt
// instead of repeating the introduction every turn (MUL-4259).
func (q *Queries) ChatSessionHasUserMessage(ctx context.Context, chatSessionID pgtype.UUID) (bool, error) {
	row := q.db.QueryRow(ctx, chatSessionHasUserMessage, chatSessionID)
	var has_user_message bool
	err := row.Scan(&has_user_message)
	return has_user_message, err
}

const clearChatMessageChannelMediaPending = `-- name: ClearChatMessageChannelMediaPending :exec
UPDATE chat_message
SET channel_media_pending_until = NULL
WHERE id = $1 AND chat_session_id = $2
`

type ClearChatMessageChannelMediaPendingParams struct {
	ID            pgtype.UUID `json:"id"`
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
}

func (q *Queries) ClearChatMessageChannelMediaPending(ctx context.Context, arg ClearChatMessageChannelMediaPendingParams) error {
	_, err := q.db.Exec(ctx, clearChatMessageChannelMediaPending, arg.ID, arg.ChatSessionID)
	return err
}

const clearChatSessionProjectByProject = `-- name: ClearChatSessionProjectByProject :exec
UPDATE chat_session
SET project_id = NULL
WHERE project_id = $1 AND workspace_id = $2
`

type ClearChatSessionProjectByProjectParams struct {
	ProjectID   pgtype.UUID `json:"project_id"`
	WorkspaceID pgtype.UUID `json:"workspace_id"`
}

// Project references are intentionally soft (no database FK). Keep chat
// history while removing the context selection when a project is deleted.
// Do not touch updated_at: context cleanup is not chat activity.
func (q *Queries) ClearChatSessionProjectByProject(ctx context.Context, arg ClearChatSessionProjectByProjectParams) error {
	_, err := q.db.Exec(ctx, clearChatSessionProjectByProject, arg.ProjectID, arg.WorkspaceID)
	return err
}

const clearChatSessionSessionIfMatches = `-- name: ClearChatSessionSessionIfMatches :exec
UPDATE chat_session
SET session_id = NULL,
    runtime_id = NULL,
    updated_at = now()
WHERE id = $1
  AND session_id = $2
  AND runtime_id = $3
`

type ClearChatSessionSessionIfMatchesParams struct {
	ID        pgtype.UUID `json:"id"`
	SessionID pgtype.Text `json:"session_id"`
	RuntimeID pgtype.UUID `json:"runtime_id"`
}

// Drops the chat session's resume pointer, but only while it still points at
// the exact session the caller proved unresumable.
//
// The claim handler reads chat_session.session_id FIRST and only falls back to
// GetLastChatTaskSession when it is empty, so a poisoned pointer here bypasses
// every filter that query applies. Declining to OVERWRITE the pointer on a
// resume-unsafe failure — which is all the fail path used to do — leaves the
// dead session in place and the next turn resumes it (GH #6066).
//
// The session_id + runtime_id predicate is what makes this safe to run in the
// fail transaction: a concurrent turn that has already written a NEW pointer
// does not match, so its healthy session survives instead of being cleared by
// a slower sibling's failure. work_dir is deliberately left alone — the
// directory is still reusable, only the conversation is not.
func (q *Queries) ClearChatSessionSessionIfMatches(ctx context.Context, arg ClearChatSessionSessionIfMatchesParams) error {
	_, err := q.db.Exec(ctx, clearChatSessionSessionIfMatches, arg.ID, arg.SessionID, arg.RuntimeID)
	return err
}

const createChatDraftRestore = `-- name: CreateChatDraftRestore :one
INSERT INTO chat_draft_restore (id, chat_session_id, task_id, content, attachment_ids)
VALUES ($1, $2, $3, $4, $5)
RETURNING id, chat_session_id, task_id, content, attachment_ids, created_at
`

type CreateChatDraftRestoreParams struct {
	ID            pgtype.UUID   `json:"id"`
	ChatSessionID pgtype.UUID   `json:"chat_session_id"`
	TaskID        pgtype.UUID   `json:"task_id"`
	Content       string        `json:"content"`
	AttachmentIds []pgtype.UUID `json:"attachment_ids"`
}

// Persists the deferred-cancellation draft restore (#5219) in the same tx
// that deletes the triggering user message: the chat:cancel_finalized
// broadcast is best-effort, so an offline client recovers the draft from
// this row instead. id is the deleted message's id.
func (q *Queries) CreateChatDraftRestore(ctx context.Context, arg CreateChatDraftRestoreParams) (ChatDraftRestore, error) {
	row := q.db.QueryRow(ctx, createChatDraftRestore,
		arg.ID,
		arg.ChatSessionID,
		arg.TaskID,
		arg.Content,
		arg.AttachmentIds,
	)
	var i ChatDraftRestore
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.TaskID,
		&i.Content,
		&i.AttachmentIds,
		&i.CreatedAt,
	)
	return i, err
}

const createChatMessage = `-- name: CreateChatMessage :one
INSERT INTO chat_message (
    chat_session_id, role, content, task_id, failure_reason, elapsed_ms,
    message_kind, quick_actions, channel_media_pending_until, channel_ingested,
    channel_context_revision, id
)
VALUES (
    $1, $2, $3, $4, $5, $6,
    COALESCE($7::text, 'message'),
    COALESCE($8::jsonb, '[]'::jsonb),
    -- The media deadline is DB-clock time: every consumer compares it against
    -- SQL now() (GetChannelMediaPendingUntil, the deferred promote, the
    -- trailing-message guard), so the writer must use the same clock. The
    -- caller passes a relative budget in seconds; an application-clock
    -- timestamp here would let a skewed app node shrink or stretch the
    -- fallback window.
    CASE WHEN $9::float8 IS NULL THEN NULL
         ELSE now() + make_interval(secs => $9::float8) END,
    COALESCE($10::boolean, FALSE),
    $11,
    COALESCE($12::uuid, gen_random_uuid())
)
RETURNING id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled
`

type CreateChatMessageParams struct {
	ChatSessionID           pgtype.UUID   `json:"chat_session_id"`
	Role                    string        `json:"role"`
	Content                 string        `json:"content"`
	TaskID                  pgtype.UUID   `json:"task_id"`
	FailureReason           pgtype.Text   `json:"failure_reason"`
	ElapsedMs               pgtype.Int8   `json:"elapsed_ms"`
	MessageKind             pgtype.Text   `json:"message_kind"`
	QuickActions            []byte        `json:"quick_actions"`
	ChannelMediaPendingSecs pgtype.Float8 `json:"channel_media_pending_secs"`
	ChannelIngested         pgtype.Bool   `json:"channel_ingested"`
	ChannelContextRevision  pgtype.Int8   `json:"channel_context_revision"`
	ID                      pgtype.UUID   `json:"id"`
}

// message_kind and quick_actions default via COALESCE so every existing caller
// (which omits it) keeps writing ordinary messages; the empty-reply path passes
// 'no_response' to mark a visible turn with no text output (MUL-4351).
func (q *Queries) CreateChatMessage(ctx context.Context, arg CreateChatMessageParams) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, createChatMessage,
		arg.ChatSessionID,
		arg.Role,
		arg.Content,
		arg.TaskID,
		arg.FailureReason,
		arg.ElapsedMs,
		arg.MessageKind,
		arg.QuickActions,
		arg.ChannelMediaPendingSecs,
		arg.ChannelIngested,
		arg.ChannelContextRevision,
		arg.ID,
	)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const createChatSession = `-- name: CreateChatSession :one
INSERT INTO chat_session (workspace_id, agent_id, creator_id, title, runtime_id, is_agent_intro, project_id, id)
VALUES ($1, $2, $3, $4, (SELECT runtime_id FROM agent WHERE id = $2), $5, $6, COALESCE($7::uuid, gen_random_uuid()))
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type CreateChatSessionParams struct {
	WorkspaceID  pgtype.UUID `json:"workspace_id"`
	AgentID      pgtype.UUID `json:"agent_id"`
	CreatorID    pgtype.UUID `json:"creator_id"`
	Title        string      `json:"title"`
	IsAgentIntro bool        `json:"is_agent_intro"`
	ProjectID    pgtype.UUID `json:"project_id"`
	ID           pgtype.UUID `json:"id"`
}

func (q *Queries) CreateChatSession(ctx context.Context, arg CreateChatSessionParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, createChatSession,
		arg.WorkspaceID,
		arg.AgentID,
		arg.CreatorID,
		arg.Title,
		arg.IsAgentIntro,
		arg.ProjectID,
		arg.ID,
	)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const createChatTask = `-- name: CreateChatTask :one
INSERT INTO agent_task_queue (
    agent_id, runtime_id, issue_id, status, priority, chat_session_id,
    initiator_user_id, originator_user_id, accountable_user_id, force_fresh_session, runtime_mcp_overlay,
    runtime_connected_apps, originator_source, trigger_evidence_kind, trigger_evidence_ref_id,
    fire_at, channel_context_revision, id
)
SELECT
    $1, $2, NULL,
    CASE WHEN $6::timestamptz IS NULL THEN 'queued' ELSE 'deferred' END,
    $3, $4, $5,
    $7,
    $8,
    COALESCE($9::boolean, FALSE),
    $10,
    $11,
    $12,
    $13,
    $14,
    $6::timestamptz,
    $15::bigint,
    COALESCE($16::uuid, gen_random_uuid())
WHERE lock_task_owner_rows($1, NULL, $2)
RETURNING id, agent_id, issue_id, status, priority, dispatched_at, started_at, completed_at, result, error, created_at, context, runtime_id, session_id, work_dir, trigger_comment_id, chat_session_id, autopilot_run_id, attempt, max_attempts, parent_task_id, failure_reason, trigger_summary, force_fresh_session, is_leader_task, wait_reason, initiator_user_id, handoff_note, prepare_lease_expires_at, squad_id, runtime_mcp_overlay, escalation_for_task_id, fire_at, originator_user_id, runtime_connected_apps, coalesced_comment_ids, delivered_comment_ids, chat_input_task_id, chat_finalize_deferred_at, originator_source, delegated_from_task_id, retry_of_task_id, rerun_of_task_id, rule_version_id, trigger_evidence_kind, trigger_evidence_ref_id, accountable_user_id, session_rollout_missing, retired_session_id, quick_actions_disabled, regenerate_quick_actions_for, branch_name, durable_work_dir, channel_context_revision, comment_thread_id, cancelled_by_type, cancelled_by_id, cancelled_by_name, issue_snapshot, workflow_step
`

type CreateChatTaskParams struct {
	AgentID                pgtype.UUID        `json:"agent_id"`
	RuntimeID              pgtype.UUID        `json:"runtime_id"`
	Priority               int32              `json:"priority"`
	ChatSessionID          pgtype.UUID        `json:"chat_session_id"`
	InitiatorUserID        pgtype.UUID        `json:"initiator_user_id"`
	FireAt                 pgtype.Timestamptz `json:"fire_at"`
	OriginatorUserID       pgtype.UUID        `json:"originator_user_id"`
	AccountableUserID      pgtype.UUID        `json:"accountable_user_id"`
	ForceFreshSession      pgtype.Bool        `json:"force_fresh_session"`
	RuntimeMcpOverlay      []byte             `json:"runtime_mcp_overlay"`
	RuntimeConnectedApps   []byte             `json:"runtime_connected_apps"`
	OriginatorSource       pgtype.Text        `json:"originator_source"`
	TriggerEvidenceKind    pgtype.Text        `json:"trigger_evidence_kind"`
	TriggerEvidenceRefID   pgtype.UUID        `json:"trigger_evidence_ref_id"`
	ChannelContextRevision pgtype.Int8        `json:"channel_context_revision"`
	ID                     pgtype.UUID        `json:"id"`
}

// Fenced against workspace teardown: lock_task_owner_rows (migration 284)
// locks the owners' workspace rows in the writer's own transaction and returns
// false once they are gone, so this statement writes no row instead of stranding
// a task in a workspace that has just been deleted (MUL-5999).
// The chat sender (initiator) is a direct_human originator and accountable;
// attribution provenance is stamped so this path is not a NULL-source enqueue
// bypass (MUL-4302 §2).
func (q *Queries) CreateChatTask(ctx context.Context, arg CreateChatTaskParams) (AgentTaskQueue, error) {
	row := q.db.QueryRow(ctx, createChatTask,
		arg.AgentID,
		arg.RuntimeID,
		arg.Priority,
		arg.ChatSessionID,
		arg.InitiatorUserID,
		arg.FireAt,
		arg.OriginatorUserID,
		arg.AccountableUserID,
		arg.ForceFreshSession,
		arg.RuntimeMcpOverlay,
		arg.RuntimeConnectedApps,
		arg.OriginatorSource,
		arg.TriggerEvidenceKind,
		arg.TriggerEvidenceRefID,
		arg.ChannelContextRevision,
		arg.ID,
	)
	var i AgentTaskQueue
	err := row.Scan(
		&i.ID,
		&i.AgentID,
		&i.IssueID,
		&i.Status,
		&i.Priority,
		&i.DispatchedAt,
		&i.StartedAt,
		&i.CompletedAt,
		&i.Result,
		&i.Error,
		&i.CreatedAt,
		&i.Context,
		&i.RuntimeID,
		&i.SessionID,
		&i.WorkDir,
		&i.TriggerCommentID,
		&i.ChatSessionID,
		&i.AutopilotRunID,
		&i.Attempt,
		&i.MaxAttempts,
		&i.ParentTaskID,
		&i.FailureReason,
		&i.TriggerSummary,
		&i.ForceFreshSession,
		&i.IsLeaderTask,
		&i.WaitReason,
		&i.InitiatorUserID,
		&i.HandoffNote,
		&i.PrepareLeaseExpiresAt,
		&i.SquadID,
		&i.RuntimeMcpOverlay,
		&i.EscalationForTaskID,
		&i.FireAt,
		&i.OriginatorUserID,
		&i.RuntimeConnectedApps,
		&i.CoalescedCommentIds,
		&i.DeliveredCommentIds,
		&i.ChatInputTaskID,
		&i.ChatFinalizeDeferredAt,
		&i.OriginatorSource,
		&i.DelegatedFromTaskID,
		&i.RetryOfTaskID,
		&i.RerunOfTaskID,
		&i.RuleVersionID,
		&i.TriggerEvidenceKind,
		&i.TriggerEvidenceRefID,
		&i.AccountableUserID,
		&i.SessionRolloutMissing,
		&i.RetiredSessionID,
		&i.QuickActionsDisabled,
		&i.RegenerateQuickActionsFor,
		&i.BranchName,
		&i.DurableWorkDir,
		&i.ChannelContextRevision,
		&i.CommentThreadID,
		&i.CancelledByType,
		&i.CancelledByID,
		&i.CancelledByName,
		&i.IssueSnapshot,
		&i.WorkflowStep,
	)
	return i, err
}

const createMikaOnboardingOpening = `-- name: CreateMikaOnboardingOpening :one
INSERT INTO chat_message (chat_session_id, role, content, message_kind, created_at, id)
VALUES (
    $1,
    'assistant',
    $2,
    'onboarding_opening',
    $3::timestamptz + interval '1 microsecond',
    COALESCE($4::uuid, gen_random_uuid())
)
RETURNING id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled
`

type CreateMikaOnboardingOpeningParams struct {
	ChatSessionID    pgtype.UUID        `json:"chat_session_id"`
	Content          string             `json:"content"`
	KickoffCreatedAt pgtype.Timestamptz `json:"kickoff_created_at"`
	ID               pgtype.UUID        `json:"id"`
}

// Mika's opening reply, written by the server rather than produced by an agent
// run (MUL-5827). Paired with the hidden kickoff row in one transaction, which
// is why created_at is derived instead of defaulted: now() is the TRANSACTION
// timestamp, so both rows would land on the identical microsecond, and the
// session-list LATERAL picks the last message with `ORDER BY created_at DESC
// LIMIT 1` and no tiebreaker (ids are random UUIDs, not monotonic). A tie there
// can select the kickoff, whose kind makes buildChatLastMessage return nil — so
// a session that onboarded perfectly reports no last message and the "Start
// with Mika" recovery card reappears. One microsecond makes the order total.
//
// task_id stays NULL: no agent run produced this row, and nothing may treat it
// as a turn to regenerate or resume.
func (q *Queries) CreateMikaOnboardingOpening(ctx context.Context, arg CreateMikaOnboardingOpeningParams) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, createMikaOnboardingOpening,
		arg.ChatSessionID,
		arg.Content,
		arg.KickoffCreatedAt,
		arg.ID,
	)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const deferChatTaskForSealedPendingMedia = `-- name: DeferChatTaskForSealedPendingMedia :one
UPDATE agent_task_queue AS task
SET status = 'deferred', fire_at = pending.max_until
FROM (
    SELECT max(message.channel_media_pending_until) AS max_until
    FROM chat_message AS message
    WHERE message.task_id = $1
      AND message.role = 'user'
      AND message.channel_media_pending_until > now()
) AS pending
WHERE task.id = $1
  AND pending.max_until IS NOT NULL
  AND (task.fire_at IS NULL OR task.fire_at < pending.max_until)
RETURNING task.id, task.agent_id, task.issue_id, task.status, task.priority, task.dispatched_at, task.started_at, task.completed_at, task.result, task.error, task.created_at, task.context, task.runtime_id, task.session_id, task.work_dir, task.trigger_comment_id, task.chat_session_id, task.autopilot_run_id, task.attempt, task.max_attempts, task.parent_task_id, task.failure_reason, task.trigger_summary, task.force_fresh_session, task.is_leader_task, task.wait_reason, task.initiator_user_id, task.handoff_note, task.prepare_lease_expires_at, task.squad_id, task.runtime_mcp_overlay, task.escalation_for_task_id, task.fire_at, task.originator_user_id, task.runtime_connected_apps, task.coalesced_comment_ids, task.delivered_comment_ids, task.chat_input_task_id, task.chat_finalize_deferred_at, task.originator_source, task.delegated_from_task_id, task.retry_of_task_id, task.rerun_of_task_id, task.rule_version_id, task.trigger_evidence_kind, task.trigger_evidence_ref_id, task.accountable_user_id, task.session_rollout_missing, task.retired_session_id, task.quick_actions_disabled, task.regenerate_quick_actions_for, task.branch_name, task.durable_work_dir, task.channel_context_revision, task.comment_thread_id, task.cancelled_by_type, task.cancelled_by_id, task.cancelled_by_name, task.issue_snapshot, task.workflow_step
`

// Closes the enqueue-vs-append race: under READ COMMITTED a media message can
// commit between GetChannelMediaPendingUntil and the batch seal above, landing
// an unexpired media marker inside a task the deadline read decided was
// 'queued'. Re-derive the deferral from the sealed batch itself, in the same
// transaction, so a task is never claimable while its own input still has an
// unexpired marker. No row (ErrNoRows) means no correction was needed.
func (q *Queries) DeferChatTaskForSealedPendingMedia(ctx context.Context, taskID pgtype.UUID) (AgentTaskQueue, error) {
	row := q.db.QueryRow(ctx, deferChatTaskForSealedPendingMedia, taskID)
	var i AgentTaskQueue
	err := row.Scan(
		&i.ID,
		&i.AgentID,
		&i.IssueID,
		&i.Status,
		&i.Priority,
		&i.DispatchedAt,
		&i.StartedAt,
		&i.CompletedAt,
		&i.Result,
		&i.Error,
		&i.CreatedAt,
		&i.Context,
		&i.RuntimeID,
		&i.SessionID,
		&i.WorkDir,
		&i.TriggerCommentID,
		&i.ChatSessionID,
		&i.AutopilotRunID,
		&i.Attempt,
		&i.MaxAttempts,
		&i.ParentTaskID,
		&i.FailureReason,
		&i.TriggerSummary,
		&i.ForceFreshSession,
		&i.IsLeaderTask,
		&i.WaitReason,
		&i.InitiatorUserID,
		&i.HandoffNote,
		&i.PrepareLeaseExpiresAt,
		&i.SquadID,
		&i.RuntimeMcpOverlay,
		&i.EscalationForTaskID,
		&i.FireAt,
		&i.OriginatorUserID,
		&i.RuntimeConnectedApps,
		&i.CoalescedCommentIds,
		&i.DeliveredCommentIds,
		&i.ChatInputTaskID,
		&i.ChatFinalizeDeferredAt,
		&i.OriginatorSource,
		&i.DelegatedFromTaskID,
		&i.RetryOfTaskID,
		&i.RerunOfTaskID,
		&i.RuleVersionID,
		&i.TriggerEvidenceKind,
		&i.TriggerEvidenceRefID,
		&i.AccountableUserID,
		&i.SessionRolloutMissing,
		&i.RetiredSessionID,
		&i.QuickActionsDisabled,
		&i.RegenerateQuickActionsFor,
		&i.BranchName,
		&i.DurableWorkDir,
		&i.ChannelContextRevision,
		&i.CommentThreadID,
		&i.CancelledByType,
		&i.CancelledByID,
		&i.CancelledByName,
		&i.IssueSnapshot,
		&i.WorkflowStep,
	)
	return i, err
}

const deleteChatDraftRestore = `-- name: DeleteChatDraftRestore :execrows
DELETE FROM chat_draft_restore
WHERE id = $1 AND chat_session_id = $2
`

type DeleteChatDraftRestoreParams struct {
	ID            pgtype.UUID `json:"id"`
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
}

// Idempotent consume: deleting an already-consumed restore matches no row.
func (q *Queries) DeleteChatDraftRestore(ctx context.Context, arg DeleteChatDraftRestoreParams) (int64, error) {
	result, err := q.db.Exec(ctx, deleteChatDraftRestore, arg.ID, arg.ChatSessionID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const deleteChatDraftRestoresBySession = `-- name: DeleteChatDraftRestoresBySession :exec
DELETE FROM chat_draft_restore
WHERE chat_session_id = $1
`

// chat_draft_restore carries no chat_session FK (MUL-3515), so DeleteChatSession
// prunes its pending restores in the same tx that deletes the session.
func (q *Queries) DeleteChatDraftRestoresBySession(ctx context.Context, chatSessionID pgtype.UUID) error {
	_, err := q.db.Exec(ctx, deleteChatDraftRestoresBySession, chatSessionID)
	return err
}

const deleteChatDraftRestoresBySystemRuntimeAgents = `-- name: DeleteChatDraftRestoresBySystemRuntimeAgents :exec
DELETE FROM chat_draft_restore
WHERE chat_session_id IN (
    SELECT cs.id FROM chat_session cs
    JOIN agent a ON a.id = cs.agent_id
    WHERE a.runtime_id = $1 AND a.kind = 'system'
)
`

// chat_session cascades from agent, so hard-deleting a runtime's system agents
// silently drops their sessions — and, without an FK, would strand the pending
// restores (which still hold the user's prompt text) forever. Prune them in the
// same tx, BEFORE the agent rows go: the join below needs them. Mirrors
// DeleteChannelInstallationsBySystemRuntimeAgents.
//
// Only system agents are hard-deleted on runtime teardown since MUL-5559; user
// agents (archived or not) are unbound and keep their sessions and restores.
func (q *Queries) DeleteChatDraftRestoresBySystemRuntimeAgents(ctx context.Context, runtimeID pgtype.UUID) error {
	_, err := q.db.Exec(ctx, deleteChatDraftRestoresBySystemRuntimeAgents, runtimeID)
	return err
}

const deleteChatSession = `-- name: DeleteChatSession :exec
DELETE FROM chat_session WHERE id = $1 AND workspace_id = $2
`

type DeleteChatSessionParams struct {
	ID          pgtype.UUID `json:"id"`
	WorkspaceID pgtype.UUID `json:"workspace_id"`
}

// Hard delete. chat_message rows cascade via FK ON DELETE CASCADE; the
// chat_session_id on agent_task_queue is set NULL by FK so completed/failed
// task history survives the session being removed. Callers MUST run inside
// the same transaction that holds LockChatSessionForDelete and that has
// already cancelled any in-flight tasks (see CancelAgentTasksByChatSession)
// so the daemon does not keep running work whose result has nowhere to
// land. workspace_id in the WHERE clause is a SQL-layer tenant guard; see
// DeleteIssue.
func (q *Queries) DeleteChatSession(ctx context.Context, arg DeleteChatSessionParams) error {
	_, err := q.db.Exec(ctx, deleteChatSession, arg.ID, arg.WorkspaceID)
	return err
}

const deleteUserChatMessageByTask = `-- name: DeleteUserChatMessageByTask :one
DELETE FROM chat_message
WHERE task_id = $1
  AND role = 'user'
  AND message_kind <> 'onboarding_kickoff'
RETURNING id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled
`

// Deletes the MEMBER-TYPED input of a cancelled/edited turn.
//
// The kickoff exclusion is load-bearing since MUL-5827: an onboarding session's
// first real turn owns two user rows — the member's message and the adopted
// kickoff — so an unqualified delete would take the kickoff with it. That row
// is the only copy of the onboarding context and of "you have already greeted
// them", so losing it makes Mika introduce herself a second time, and the
// RETURNING row would be an arbitrary one of the two: cancel could hand the
// member the product's internal prompt as their restored draft, and silently
// drop what they actually typed. Callers release the kickoff separately
// (ReleaseOnboardingKickoffFromTask) so the next send re-adopts it.
func (q *Queries) DeleteUserChatMessageByTask(ctx context.Context, taskID pgtype.UUID) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, deleteUserChatMessageByTask, taskID)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const getChannelMediaPendingUntil = `-- name: GetChannelMediaPendingUntil :one
SELECT channel_media_pending_until
FROM chat_message
WHERE chat_session_id = $1
  AND role = 'user'
  AND message_kind != 'channel_command'
  AND (
      $2::bigint IS NULL
      OR channel_context_revision = $2::bigint
      OR (
          $2::bigint = 1
          AND channel_context_revision IS NULL
      )
  )
  AND channel_media_pending_until > now()
ORDER BY channel_media_pending_until DESC
LIMIT 1
`

type GetChannelMediaPendingUntilParams struct {
	ChatSessionID          pgtype.UUID `json:"chat_session_id"`
	ChannelContextRevision pgtype.Int8 `json:"channel_context_revision"`
}

// The latest unexpired media deadline gates a channel task. Using a durable
// task fire_at means a process restart still produces the placeholder fallback.
// Only a turn that can join a task's input batch may gate one: channel_command
// turns are excluded from the seal below, so an unrelated later message would
// otherwise wait out a command's media (or its whole fallback budget, since a
// command whose create failed never runs the binder that clears the marker).
func (q *Queries) GetChannelMediaPendingUntil(ctx context.Context, arg GetChannelMediaPendingUntilParams) (pgtype.Timestamptz, error) {
	row := q.db.QueryRow(ctx, getChannelMediaPendingUntil, arg.ChatSessionID, arg.ChannelContextRevision)
	var channel_media_pending_until pgtype.Timestamptz
	err := row.Scan(&channel_media_pending_until)
	return channel_media_pending_until, err
}

const getChatMessage = `-- name: GetChatMessage :one
SELECT id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled FROM chat_message
WHERE id = $1
`

func (q *Queries) GetChatMessage(ctx context.Context, id pgtype.UUID) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, getChatMessage, id)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const getChatMessageByTaskAssistant = `-- name: GetChatMessageByTaskAssistant :one
SELECT id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled FROM chat_message
WHERE task_id = $1 AND role = 'assistant'
ORDER BY created_at DESC
LIMIT 1
`

// The completed turn's assistant outcome row, for the quick-actions
// supplement path (daemon suggestion pass finishing after chat:done).
func (q *Queries) GetChatMessageByTaskAssistant(ctx context.Context, taskID pgtype.UUID) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, getChatMessageByTaskAssistant, taskID)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const getChatSession = `-- name: GetChatSession :one
SELECT id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at FROM chat_session
WHERE id = $1
`

func (q *Queries) GetChatSession(ctx context.Context, id pgtype.UUID) (ChatSession, error) {
	row := q.db.QueryRow(ctx, getChatSession, id)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const getChatSessionInWorkspace = `-- name: GetChatSessionInWorkspace :one
SELECT id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at FROM chat_session
WHERE id = $1 AND workspace_id = $2
`

type GetChatSessionInWorkspaceParams struct {
	ID          pgtype.UUID `json:"id"`
	WorkspaceID pgtype.UUID `json:"workspace_id"`
}

func (q *Queries) GetChatSessionInWorkspace(ctx context.Context, arg GetChatSessionInWorkspaceParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, getChatSessionInWorkspace, arg.ID, arg.WorkspaceID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const getLastChatTaskSession = `-- name: GetLastChatTaskSession :one
WITH retired_sessions AS (
    SELECT DISTINCT r.retired_session_id AS session_id
    FROM agent_task_queue r
    WHERE r.chat_session_id = $1
      AND (
        $2::bigint IS NULL
        OR COALESCE(r.channel_context_revision, 1) = $2::bigint
      )
      AND r.retired_session_id IS NOT NULL
), resume_overflow_at AS (
    -- completed_at alone, where the issue-side twin coalesces four columns:
    -- this query already selects and orders by bare completed_at throughout,
    -- so the cutoff has to be measured on the same clock as the values it is
    -- compared against. Change both halves together if that ever moves.
    SELECT MAX(t.completed_at) AS at
    FROM agent_task_queue t
    WHERE t.chat_session_id = $1
      AND (
        $2::bigint IS NULL
        OR COALESCE(t.channel_context_revision, 1) = $2::bigint
      )
      AND t.status = 'failed'
      AND (
        COALESCE(t.failure_reason, '') = 'codex_resume_oversized'
        OR (COALESCE(t.error, '') ILIKE '%thread/resume failed%' AND COALESCE(t.error, '') ILIKE '%token too long%')
      )
), latest_per_session AS (
    SELECT DISTINCT ON (t.session_id)
        t.session_id, t.work_dir, t.runtime_id, t.status, t.failure_reason, t.error, t.completed_at
    FROM agent_task_queue t
    WHERE t.chat_session_id = $1
      AND (
        $2::bigint IS NULL
        OR COALESCE(t.channel_context_revision, 1) = $2::bigint
      )
      AND t.session_id IS NOT NULL
      AND t.status IN ('completed', 'failed', 'cancelled')
    ORDER BY t.session_id, t.completed_at DESC
)
SELECT session_id, work_dir, runtime_id FROM latest_per_session
WHERE session_id NOT IN (SELECT session_id FROM retired_sessions)
  AND (
    status IN ('completed', 'cancelled')
    OR (
      status = 'failed'
      AND COALESCE(failure_reason, '') NOT IN ('iteration_limit', 'agent_fallback_message', 'api_invalid_request', 'codex_semantic_inactivity', 'agent_error.context_overflow', 'codex_resume_oversized', 'opencode_clock_skew')
      AND NOT (COALESCE(error, '') ILIKE '%400%' AND COALESCE(error, '') ILIKE '%invalid_request_error%')
      -- Mirrors the GetLastTaskSession auth-resolution guard: a provider that
      -- cannot resolve its auth method fails deterministically on resume, and
      -- the classification is agent_error.unknown (resume-safe), so only this
      -- text guard keeps the dead session from being replayed. This and
      -- GetLastTaskSession must move together.
      -- Keep in sync with ResumeUnsafeFailure and GetLastTaskSession.
      -- The phrase itself lives in taskfailure.AuthMethodUnresolved, which the
      -- daemon's in-turn fresh-session retry reads (GH #6777). This guard stays
      -- because it is the only protection for rows an older daemon wrote.
      AND NOT (COALESCE(error, '') ILIKE '%could not resolve authentication method%')
      AND NOT (COALESCE(error, '') ~* 'must not be empty|must be non-?empty|must have non-?empty|non-?empty content|cannot be empty|should not be empty'
               AND COALESCE(error, '') ~* 'role[^a-z0-9]{0,2}assistant|assistant message|message at position|messages\.[0-9]|messages\[[0-9]')
      -- MUL-8188: a runtime that names its own transcript invalid (Kiro panics
      -- with "invalid conversation history received" on every prompt) replays
      -- the same failure on every resume. Mirrors taskfailure.UnresumableHistory.
      AND NOT (COALESCE(error, '') ILIKE '%invalid conversation history%')
    )
  )
  -- MUL-5722, mirroring GetLastTaskSession: an overflowed resume records no
  -- session, so exclude by time instead of by matching the failed row. Note
  -- this only guards the FALLBACK for legacy tasks — the claim handler reads
  -- chat_session.session_id first for them, so a pointer still naming the
  -- oversized thread has to be cleared at fail time (see FailTask) to be
  -- covered. Context-scoped channel tasks resolve directly from this query.
  AND (
    (SELECT at FROM resume_overflow_at) IS NULL
    OR completed_at > (SELECT at FROM resume_overflow_at)
  )
ORDER BY completed_at DESC
LIMIT 1
`

type GetLastChatTaskSessionParams struct {
	ChatSessionID          pgtype.UUID `json:"chat_session_id"`
	ChannelContextRevision pgtype.Int8 `json:"channel_context_revision"`
}

type GetLastChatTaskSessionRow struct {
	SessionID pgtype.Text `json:"session_id"`
	WorkDir   pgtype.Text `json:"work_dir"`
	RuntimeID pgtype.UUID `json:"runtime_id"`
}

// Returns the most recent task in this chat session that managed to record a
// session_id. Includes completed, failed AND cancelled tasks: each of them may
// have established a real agent session, and we'd rather resume there than
// start over and lose conversation memory. Used as a fallback when
// chat_session.session_id is NULL, and as the authoritative generation-scoped
// source for channel tasks. Resume-unsafe failures are excluded because
// replaying those sessions deterministically reproduces the same terminal
// state. Keep this list in sync with resumeUnsafeFailureReason and
// GetLastTaskSession.
//
// The plan depends on idx_agent_task_queue_chat_terminal_resume for the
// terminal/cutoff scans and idx_agent_task_queue_chat_retired_session for the
// retired set. Keep their partial predicates broad enough for every CTE here,
// especially the NULL-session resume_overflow_at rows.
//
// 'cancelled' is resumable and its absence was GH #6340: the user stops a turn
// the agent had already started answering, and the next message starts from
// nothing. A cancelled row only carries a session_id because the daemon pinned
// one mid-flight (UpdateAgentTaskSession), which means the provider really did
// emit that session — either the resume loaded or it opened a fresh one. The
// user interrupted it; the provider did not reject it, so it is no more
// suspect than a completed one. Cancellation records no failure_reason/error,
// so the poison filters below have nothing to match and cancelled rows pass
// them the way completed rows do. The remaining risk — a transcript killed
// mid-tool-call that the provider later refuses — is caught downstream by
// taskfailure.UnresumableHistory and retires the session on the next turn.
//
// The regex pair mirrors GetLastTaskSession's provider-agnostic guard for an
// empty message baked into the conversation history: both must match, and
// both track emptyContentRe / historyMessageLocatorRe in
// pkg/taskfailure/resume.go (GH #6066).
//
// Selection is per-session, not per-row, and retired sessions are excluded —
// both mirroring GetLastTaskSession, which this query had drifted away from.
// A plain row-level filter reopens the poisoning wormhole GH #5975 closed on
// the issue side: it drops the newest poisoned row for a session and then
// happily falls back to an OLDER completed row carrying the same dead
// session_id. Judging each session by its LATEST terminal state means a newer
// poisoned row invalidates the whole session, while a genuinely different
// healthy session stays eligible.
func (q *Queries) GetLastChatTaskSession(ctx context.Context, arg GetLastChatTaskSessionParams) (GetLastChatTaskSessionRow, error) {
	row := q.db.QueryRow(ctx, getLastChatTaskSession, arg.ChatSessionID, arg.ChannelContextRevision)
	var i GetLastChatTaskSessionRow
	err := row.Scan(&i.SessionID, &i.WorkDir, &i.RuntimeID)
	return i, err
}

const getLatestAssistantChatMessageForSession = `-- name: GetLatestAssistantChatMessageForSession :one
SELECT id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled FROM chat_message
WHERE chat_session_id = $1 AND role = 'assistant' AND task_id IS NOT NULL
ORDER BY created_at DESC
LIMIT 1
`

// The session's most recent assistant turn, used as the regeneration target
// when the user clicks "refresh" on the quick-actions row (MUL-5149). Only rows
// with a task_id qualify — the daemon suggest supplement keys off task_id and
// a resume needs a real completed turn to resume from.
func (q *Queries) GetLatestAssistantChatMessageForSession(ctx context.Context, chatSessionID pgtype.UUID) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, getLatestAssistantChatMessageForSession, chatSessionID)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const getOldestActiveChatSessionForCreatorAgent = `-- name: GetOldestActiveChatSessionForCreatorAgent :one
SELECT id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at FROM chat_session
WHERE workspace_id = $1
  AND creator_id = $2
  AND agent_id = $3
  AND status = 'active'
ORDER BY created_at ASC
LIMIT 1
`

type GetOldestActiveChatSessionForCreatorAgentParams struct {
	WorkspaceID pgtype.UUID `json:"workspace_id"`
	CreatorID   pgtype.UUID `json:"creator_id"`
	AgentID     pgtype.UUID `json:"agent_id"`
}

// Identity for "this member's conversation with this agent", independent of
// the session title. Mika's onboarding session used to be matched on its
// localized title from the client, which made the lookup both racy and
// language-dependent. Oldest wins so the answer stays stable once a member
// has opened more than one session with the same agent.
func (q *Queries) GetOldestActiveChatSessionForCreatorAgent(ctx context.Context, arg GetOldestActiveChatSessionForCreatorAgentParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, getOldestActiveChatSessionForCreatorAgent, arg.WorkspaceID, arg.CreatorID, arg.AgentID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const getPendingChatTask = `-- name: GetPendingChatTask :one
SELECT id, status, created_at FROM agent_task_queue
WHERE chat_session_id = $1 AND status IN ('queued', 'dispatched', 'running', 'waiting_local_directory')
  -- Background quick-actions regeneration passes are invisible to the chat UI:
  -- they own no assistant turn and must not raise the StatusPill or disable the
  -- composer (MUL-5149 refresh follow-up).
  AND regenerate_quick_actions_for IS NULL
ORDER BY created_at DESC
LIMIT 1
`

type GetPendingChatTaskRow struct {
	ID        pgtype.UUID        `json:"id"`
	Status    string             `json:"status"`
	CreatedAt pgtype.Timestamptz `json:"created_at"`
}

// Returns the most recent in-flight task for a chat session, if any.
// Used by the frontend to recover pending state after refresh / reopen.
// created_at is the anchor for the chat StatusPill timer (it computes
// elapsed = now - task.created_at), so the pill survives refresh / reopen
// without "resetting to 0s".
func (q *Queries) GetPendingChatTask(ctx context.Context, chatSessionID pgtype.UUID) (GetPendingChatTaskRow, error) {
	row := q.db.QueryRow(ctx, getPendingChatTask, chatSessionID)
	var i GetPendingChatTaskRow
	err := row.Scan(&i.ID, &i.Status, &i.CreatedAt)
	return i, err
}

const getPublicChatSessionInWorkspace = `-- name: GetPublicChatSessionInWorkspace :one
SELECT cs.id, cs.workspace_id, cs.agent_id, cs.creator_id, cs.title, cs.session_id, cs.work_dir, cs.status, cs.created_at, cs.updated_at, cs.unread_since, cs.runtime_id, cs.last_read_at, cs.is_agent_intro, cs.pinned_at, cs.project_id, cs.explicitly_created_at FROM chat_session AS cs
WHERE cs.id = $1
  AND cs.workspace_id = $2
  AND (
    cs.explicitly_created_at IS NOT NULL
    OR
    EXISTS (
      SELECT 1 FROM chat_message AS public_message
      WHERE public_message.chat_session_id = cs.id
        AND public_message.message_kind != 'channel_command'
    )
  )
`

type GetPublicChatSessionInWorkspaceParams struct {
	ID          pgtype.UUID `json:"id"`
	WorkspaceID pgtype.UUID `json:"workspace_id"`
}

// A channel command is a durable control-plane record, not a public chat turn.
// Channel-created sessions therefore become public only after they contain a
// non-command message. Empty first-party sessions stay public so the member can
// open a newly-created Web Chat and send its first message. The explicit marker
// is durable, so removing an installation cannot change list visibility.
func (q *Queries) GetPublicChatSessionInWorkspace(ctx context.Context, arg GetPublicChatSessionInWorkspaceParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, getPublicChatSessionInWorkspace, arg.ID, arg.WorkspaceID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const getTaskChannelOrigin = `-- name: GetTaskChannelOrigin :one
SELECT (
    task.chat_input_task_id IS NULL
    OR EXISTS (
        SELECT 1
        FROM chat_message
        WHERE task_id = task.chat_input_task_id
          AND role = 'user'
          AND channel_ingested
    )
)::boolean AS channel_ingested,
    (task.chat_input_task_id IS NULL)::boolean AS batch_owner_unknown
FROM agent_task_queue AS task
WHERE task.id = $1
`

type GetTaskChannelOriginRow struct {
	ChannelIngested   bool `json:"channel_ingested"`
	BatchOwnerUnknown bool `json:"batch_owner_unknown"`
}

// The whole origin question for one completed task in one round trip: is the
// task row still there, and did its input arrive over a channel?
//
// This answers exactly what engine.TaskInputIsChannelIngested answers, in one
// read instead of two (GetAgentTask, then TaskHasChannelIngestedMessages). That
// function is the definition; this is a transcription of it, not an improvement
// on it. Both halves are load-bearing:
//
//   - A task with NO input batch owner is channel-ingested. Migration 158 left
//     both legacy direct rows and channel tasks NULL here, so the owner cannot
//     say which one a row was, and the adapters that read this deliver by
//     default — the behaviour #5645 shipped. Keying the EXISTS on the task's
//     own id instead (COALESCE(chat_input_task_id, id)) silently stops
//     delivering the auto-retry of a legacy channel task: CreateRetryTask
//     copies a NULL owner verbatim, on purpose (see agent.sql), and the clone
//     owns no messages — so it reads as web UI while CopyChannelTaskDelivery
//     has already given it the room's route.
//   - Otherwise the verdict is the batch OWNER'S, not the task's. An auto-retry
//     clone inherits its parent's chat_input_task_id while the user's message
//     stays tagged with the parent, so reading the owner is what lets the clone
//     reach the verdict its parent already has (MUL-4351).
//
// NO ROW means the task is gone — cancelled and reaped while its ending was in
// flight. Callers receive pgx.ErrNoRows and must not fold that into "asked in
// the web UI": it is the absence of a verdict, not a negative one, and the two
// are recorded differently.
//
// One round trip rather than two because this read is SYNCHRONOUS ON THE
// COMPLETION RESPONSE. It runs inside events.Bus.Publish
// (internal/events/bus.go:61-76), below TaskService.broadcastChatDone
// (internal/service/task.go:7330) and CompleteTaskWithTransition
// (internal/service/task.go:4518), which the daemon's POST /tasks/{id}/complete
// waits for before it answers (internal/handler/daemon.go:4269).
//
// batch_owner_unknown IS THE SAME FACT, REPORTED SEPARATELY, and it exists for
// one reader: the log level on a turn that has no delivery row.
//
// channel_ingested above says "deliver this", and for a NULL owner it says so
// without evidence — which is right, because delivering is the safe side and
// the auto-retry of a legacy channel turn depends on it. Warning is the other
// direction: a missing route is worth paging an operator about only when
// something actually established the turn was a channel's. A NULL owner
// establishes nothing, so a missing route on one of those is not evidence of a
// lost reply; migration 158 left legacy web rows and channel rows alike NULL
// here, and reading it as "channel" would put the loudest line this adapter has
// on a pre-158 web turn that auto-retried.
//
// So one verdict, two readings: deliver on the open side, warn on the closed
// one. The query reports both and chooses neither.
//
// Plan: agent_task_queue_pkey for the row, idx_chat_message_input_owner for the
// EXISTS. Neither side scans.
func (q *Queries) GetTaskChannelOrigin(ctx context.Context, id pgtype.UUID) (GetTaskChannelOriginRow, error) {
	row := q.db.QueryRow(ctx, getTaskChannelOrigin, id)
	var i GetTaskChannelOriginRow
	err := row.Scan(&i.ChannelIngested, &i.BatchOwnerUnknown)
	return i, err
}

const hasActiveChatTaskForSession = `-- name: HasActiveChatTaskForSession :one
SELECT EXISTS (
  SELECT 1 FROM agent_task_queue
  WHERE chat_session_id = $1
    AND status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
) AS has_active
`

// True while ANY task — a normal user turn OR a background quick-actions
// regenerate — is in flight for the session (contrast GetPendingChatTask, which
// hides regenerate passes from the UI). A quick-actions refresh is refused when
// this is true: a running turn is about to change the latest reply, so the
// target we'd resume is already stale even before its assistant row lands; and a
// second concurrent regenerate would double-spend quota on the same turn. Read
// inside the same session lock as the enqueue so it cannot race a sibling insert
// (MUL-5149 review §1/§2).
//
// 'deferred' is included: an auto-retry armed with a backoff fire_at is inserted
// deferred (CreateRetryTask), and provider_network's final chat attempt waits
// ~5s that way. During that window the failed turn has written no assistant row,
// so the latest-persisted check still points at the OLD turn — omitting deferred
// would let a refresh resume a session the retry is about to advance and attach
// the new turn's suggestions to the old one (MUL-5149 re-review §1).
func (q *Queries) HasActiveChatTaskForSession(ctx context.Context, chatSessionID pgtype.UUID) (bool, error) {
	row := q.db.QueryRow(ctx, hasActiveChatTaskForSession, chatSessionID)
	var has_active bool
	err := row.Scan(&has_active)
	return has_active, err
}

const hasPendingChatTasksByCreator = `-- name: HasPendingChatTasksByCreator :one
SELECT EXISTS (
  SELECT 1
  FROM agent_task_queue atq
  JOIN chat_session cs ON cs.id = atq.chat_session_id
  WHERE atq.chat_session_id IS NOT NULL
    AND atq.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
    -- Background quick-actions regeneration passes own no visible turn and must
    -- never light the FAB "running" indicator (MUL-5149 refresh follow-up).
    AND atq.regenerate_quick_actions_for IS NULL
    AND cs.workspace_id = $1
    AND cs.creator_id = $2
    AND cs.agent_id = ANY($3::uuid[])
) AS has_pending
`

type HasPendingChatTasksByCreatorParams struct {
	WorkspaceID pgtype.UUID   `json:"workspace_id"`
	CreatorID   pgtype.UUID   `json:"creator_id"`
	AgentIds    []pgtype.UUID `json:"agent_ids"`
}

// Boolean fast-path for the FAB's "running" indicator. Returns a single
// EXISTS row instead of the full task list, so the planner can stop at the
// first matching in-flight task (LIMIT 1 semantics via EXISTS).
//
// Permission filtering is baked into the query: agent_id = ANY($3) restricts
// the result to the agents the caller may currently see, so a member who lost
// access to a private agent never gets a true from a task they can no longer
// reach. The handler must pass its resolved accessible-agent id set as $3;
// an empty array yields false.
func (q *Queries) HasPendingChatTasksByCreator(ctx context.Context, arg HasPendingChatTasksByCreatorParams) (bool, error) {
	row := q.db.QueryRow(ctx, hasPendingChatTasksByCreator, arg.WorkspaceID, arg.CreatorID, arg.AgentIds)
	var has_pending bool
	err := row.Scan(&has_pending)
	return has_pending, err
}

const hasPendingChatTurnForSession = `-- name: HasPendingChatTurnForSession :one
SELECT EXISTS (
  SELECT 1 FROM agent_task_queue
  WHERE chat_session_id = $1
    AND status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
    AND regenerate_quick_actions_for IS NULL
) AS has_pending
`

// Position-only check for a direct send. Unlike GetPendingChatTask this is an
// EXISTS query and includes deferred retries: a new user turn must remain a
// follow-up while an older retry waits for its backoff, otherwise promotion of
// that retry would make the new message disappear from the visible transcript.
// Background quick-action regeneration owns no visible turn and is excluded.
func (q *Queries) HasPendingChatTurnForSession(ctx context.Context, chatSessionID pgtype.UUID) (bool, error) {
	row := q.db.QueryRow(ctx, hasPendingChatTurnForSession, chatSessionID)
	var has_pending bool
	err := row.Scan(&has_pending)
	return has_pending, err
}

const initializeChatSessionMediaTitle = `-- name: InitializeChatSessionMediaTitle :one
UPDATE chat_session AS session
SET title = $1
WHERE session.id = $2
  AND session.title = ''
  AND EXISTS (
    SELECT 1 FROM chat_message AS message
    WHERE message.id = $3
      AND message.chat_session_id = session.id
      AND message.role = 'user'
      AND message.message_kind != 'channel_command'
  )
  AND NOT EXISTS (
    SELECT 1 FROM chat_message AS other_message
    WHERE other_message.chat_session_id = session.id
      AND other_message.role = 'user'
      AND other_message.message_kind != 'channel_command'
      AND other_message.id != $3
  )
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type InitializeChatSessionMediaTitleParams struct {
	Title     string      `json:"title"`
	ID        pgtype.UUID `json:"id"`
	MessageID pgtype.UUID `json:"message_id"`
}

func (q *Queries) InitializeChatSessionMediaTitle(ctx context.Context, arg InitializeChatSessionMediaTitleParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, initializeChatSessionMediaTitle, arg.Title, arg.ID, arg.MessageID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const initializeChatSessionTitle = `-- name: InitializeChatSessionTitle :one
UPDATE chat_session AS session
SET title = $1
WHERE session.id = $2
  AND session.title = ''
  AND NOT EXISTS (
    SELECT 1 FROM chat_message AS message
    WHERE message.chat_session_id = session.id
      AND message.role = 'user'
      AND message.message_kind != 'channel_command'
  )
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type InitializeChatSessionTitleParams struct {
	Title string      `json:"title"`
	ID    pgtype.UUID `json:"id"`
}

func (q *Queries) InitializeChatSessionTitle(ctx context.Context, arg InitializeChatSessionTitleParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, initializeChatSessionTitle, arg.Title, arg.ID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const linkChatMessageToTask = `-- name: LinkChatMessageToTask :exec
UPDATE chat_message
SET task_id = $2
WHERE id = $1 AND role = 'user'
`

type LinkChatMessageToTaskParams struct {
	ID     pgtype.UUID `json:"id"`
	TaskID pgtype.UUID `json:"task_id"`
}

func (q *Queries) LinkChatMessageToTask(ctx context.Context, arg LinkChatMessageToTaskParams) error {
	_, err := q.db.Exec(ctx, linkChatMessageToTask, arg.ID, arg.TaskID)
	return err
}

const linkUnownedChannelChatMessagesToTask = `-- name: LinkUnownedChannelChatMessagesToTask :exec
UPDATE chat_message AS message
SET task_id = $1
FROM agent_task_queue AS task
WHERE message.chat_session_id = $2
  AND task.id = $1
  AND message.role = 'user'
  AND message.task_id IS NULL
  AND message.message_kind != 'channel_command'
  AND (
      task.channel_context_revision IS NULL
      OR message.channel_context_revision = task.channel_context_revision
      OR (
          task.channel_context_revision = 1
          AND message.channel_context_revision IS NULL
      )
  )
  AND NOT EXISTS (
      SELECT 1
      FROM chat_message AS prior
      LEFT JOIN agent_task_queue AS prior_turn
        ON prior_turn.id = prior.task_id
      LEFT JOIN agent_task_queue AS prior_batch
        ON prior_batch.id = COALESCE(prior_turn.chat_input_task_id, prior_turn.id)
      WHERE prior.chat_session_id = $2
        AND prior.role != 'user'
        AND (prior.created_at, prior.id) > (message.created_at, message.id)
        AND (prior_batch.id IS NULL OR prior_batch.created_at > message.created_at)
  )
`

type LinkUnownedChannelChatMessagesToTaskParams struct {
	TaskID        pgtype.UUID `json:"task_id"`
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
}

// Seals the trailing channel-message batch to its task. The task row and these
// links are committed together, so an older in-flight task cannot absorb a
// newer media message and a later assistant row cannot hide that message.
// channel_command turns were already handled synchronously by Router. They stay
// durable for channel orchestration but remain unowned and absent from public
// Chat projections, preventing both immediate and delayed re-execution.
//
// The boundary is "already answered", not "something newer exists". A reply can
// only be a reply TO this message if the turn that wrote it started AFTER the
// message arrived; a turn already running when the message landed had sealed
// its own input batch before the message existed, so its reply — however late
// it lands — answers an earlier batch and must not become a boundary. Without
// that qualifier, a predecessor completing inside the debounce window (message
// at 18:31:17.7, predecessor reply at 18:31:20.2, seal at 18:31:20.7) sealed
// ZERO rows: the new task owned an empty input batch and the claim path
// cancelled it, losing the user's message with no reply (GH #6591).
//
// The reply's turn is compared through COALESCE(chat_input_task_id, id): an
// auto-retry clone gets a fresh id while inheriting the root's batch, and it is
// the ROOT's creation time that says which messages that batch could contain.
// A non-user row with no task (or whose task row is gone) still counts as a
// boundary — unattributable output is treated as possibly answering, so the
// pre-ownership rows of a legacy session are never swept into a new batch.
func (q *Queries) LinkUnownedChannelChatMessagesToTask(ctx context.Context, arg LinkUnownedChannelChatMessagesToTaskParams) error {
	_, err := q.db.Exec(ctx, linkUnownedChannelChatMessagesToTask, arg.TaskID, arg.ChatSessionID)
	return err
}

const listAgentBuilderSessionsByCreator = `-- name: ListAgentBuilderSessionsByCreator :many
SELECT cs.id,
       cs.title,
       cs.created_at,
       cs.updated_at,
       a.runtime_id,
       COALESCE(lm.content, '') AS last_message_content,
       COALESCE(lm.role, '') AS last_message_role,
       lm.created_at AS last_message_at,
       d.draft AS stored_draft
FROM chat_session cs
JOIN agent a ON a.id = cs.agent_id
LEFT JOIN agent_builder_draft d ON d.chat_session_id = cs.id
LEFT JOIN LATERAL (
  SELECT content, role, created_at
    FROM chat_message m
   WHERE m.chat_session_id = cs.id
   ORDER BY m.created_at DESC
   LIMIT 1
) lm ON true
WHERE cs.workspace_id = $1
  AND cs.creator_id = $2
  AND cs.status = 'active'
  AND a.kind = 'system'
  AND a.system_key LIKE 'agent_builder:%'
  AND (lm.created_at IS NOT NULL OR d.chat_session_id IS NOT NULL)
ORDER BY COALESCE(lm.created_at, d.updated_at, cs.updated_at) DESC
`

type ListAgentBuilderSessionsByCreatorParams struct {
	WorkspaceID pgtype.UUID `json:"workspace_id"`
	CreatorID   pgtype.UUID `json:"creator_id"`
}

type ListAgentBuilderSessionsByCreatorRow struct {
	ID                 pgtype.UUID        `json:"id"`
	Title              string             `json:"title"`
	CreatedAt          pgtype.Timestamptz `json:"created_at"`
	UpdatedAt          pgtype.Timestamptz `json:"updated_at"`
	RuntimeID          pgtype.UUID        `json:"runtime_id"`
	LastMessageContent string             `json:"last_message_content"`
	LastMessageRole    string             `json:"last_message_role"`
	LastMessageAt      pgtype.Timestamptz `json:"last_message_at"`
	StoredDraft        []byte             `json:"stored_draft"`
}

// The caller's unfinished agent-creation conversations.
//
// These never appear in ListChatSessionsByCreator: that list is filtered
// against ListAllAgents, which is `kind = 'user'` only, so a builder session —
// whose agent is the hidden `kind = 'system'` carrier — is invisible to every
// chat surface by construction. This statement is the only way back to one,
// which is why the studio may stop deleting them on navigation.
//
// `a.runtime_id` is the whole point of the join. The carrier is what
// SendDirectChatMessage reads to stamp a chat task's runtime, so it is the only
// truthful answer to "where does this conversation run". Deliberately NOT
// cs.runtime_id: that is the daemon's resume pointer, left stale on purpose
// after a runtime switch (see RebindAgentBuilderRuntime), so resuming from it
// would put the picker on a runtime that no longer executes anything — the
// exact split MUL-5163 removed.
//
// A conversation qualifies once it holds something the user would miss: a
// message, or a saved configuration. Requiring a message alone was wrong — the
// form on the right is editable from the moment the session exists and
// autosaves, so someone can open the builder, type a name, and leave before the
// first turn. That session has real work in it and was unreachable. Requiring
// neither is also wrong: a session opened and abandoned untouched is not a
// draft, and would put an empty row in front of the user on every accidental
// entry into the flow.
//
// The stored draft rides along instead of needing its own fetch: the studio
// renders this list beside the conversation it is switching between, so the
// configuration for the row the user picks has to be in hand at click time.
// LEFT JOIN because a conversation that has only ever been driven by the AI has
// no saved draft — the client replays the last <agent_draft> block in that case.
// A draft-only session has no message to sort by; fall back to when its
// configuration was last written so it still lands in activity order.
func (q *Queries) ListAgentBuilderSessionsByCreator(ctx context.Context, arg ListAgentBuilderSessionsByCreatorParams) ([]ListAgentBuilderSessionsByCreatorRow, error) {
	rows, err := q.db.Query(ctx, listAgentBuilderSessionsByCreator, arg.WorkspaceID, arg.CreatorID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListAgentBuilderSessionsByCreatorRow{}
	for rows.Next() {
		var i ListAgentBuilderSessionsByCreatorRow
		if err := rows.Scan(
			&i.ID,
			&i.Title,
			&i.CreatedAt,
			&i.UpdatedAt,
			&i.RuntimeID,
			&i.LastMessageContent,
			&i.LastMessageRole,
			&i.LastMessageAt,
			&i.StoredDraft,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listAllChatSessionsByCreator = `-- name: ListAllChatSessionsByCreator :many
SELECT cs.id, cs.workspace_id, cs.agent_id, cs.creator_id, cs.title, cs.session_id, cs.work_dir, cs.status, cs.created_at, cs.updated_at, cs.unread_since, cs.runtime_id, cs.last_read_at, cs.is_agent_intro, cs.pinned_at, cs.project_id, cs.explicitly_created_at,
       CASE WHEN cs.status = 'archived' THEN 0
            ELSE (SELECT count(*) FROM chat_message m
                    WHERE m.chat_session_id = cs.id
                      AND m.role = 'assistant'
                      AND m.created_at > cs.last_read_at)
       END::int AS unread_count,
       COALESCE(lm.content, '') AS last_message_content,
       COALESCE(lm.role, '') AS last_message_role,
       lm.created_at AS last_message_at,
       lm.failure_reason AS last_message_failure_reason,
       COALESCE(lm.message_kind, '') AS last_message_kind
FROM chat_session cs
LEFT JOIN LATERAL (
  SELECT content, role, created_at, failure_reason, message_kind
    FROM chat_message m
   WHERE m.chat_session_id = cs.id
     AND m.message_kind != 'channel_command'
   ORDER BY m.created_at DESC
   LIMIT 1
) lm ON true
WHERE cs.workspace_id = $1 AND cs.creator_id = $2
  AND (
    cs.explicitly_created_at IS NOT NULL
    OR
    lm.created_at IS NOT NULL
  )
ORDER BY (cs.pinned_at IS NOT NULL) DESC, cs.pinned_at DESC, COALESCE(lm.created_at, cs.updated_at) DESC
`

type ListAllChatSessionsByCreatorParams struct {
	WorkspaceID pgtype.UUID `json:"workspace_id"`
	CreatorID   pgtype.UUID `json:"creator_id"`
}

type ListAllChatSessionsByCreatorRow struct {
	ID                       pgtype.UUID        `json:"id"`
	WorkspaceID              pgtype.UUID        `json:"workspace_id"`
	AgentID                  pgtype.UUID        `json:"agent_id"`
	CreatorID                pgtype.UUID        `json:"creator_id"`
	Title                    string             `json:"title"`
	SessionID                pgtype.Text        `json:"session_id"`
	WorkDir                  pgtype.Text        `json:"work_dir"`
	Status                   string             `json:"status"`
	CreatedAt                pgtype.Timestamptz `json:"created_at"`
	UpdatedAt                pgtype.Timestamptz `json:"updated_at"`
	UnreadSince              pgtype.Timestamptz `json:"unread_since"`
	RuntimeID                pgtype.UUID        `json:"runtime_id"`
	LastReadAt               pgtype.Timestamptz `json:"last_read_at"`
	IsAgentIntro             bool               `json:"is_agent_intro"`
	PinnedAt                 pgtype.Timestamptz `json:"pinned_at"`
	ProjectID                pgtype.UUID        `json:"project_id"`
	ExplicitlyCreatedAt      pgtype.Timestamptz `json:"explicitly_created_at"`
	UnreadCount              int32              `json:"unread_count"`
	LastMessageContent       string             `json:"last_message_content"`
	LastMessageRole          string             `json:"last_message_role"`
	LastMessageAt            pgtype.Timestamptz `json:"last_message_at"`
	LastMessageFailureReason pgtype.Text        `json:"last_message_failure_reason"`
	LastMessageKind          string             `json:"last_message_kind"`
}

// Unlike ListChatSessionsByCreator this returns archived sessions too (for the
// "Archived" view), so unread must be forced to 0 for archived rows: archiving
// deliberately does NOT advance last_read_at (so unarchive can restore the true
// unread state), but an archived session is read-only and hidden from history,
// so any residual unread is uncleanable and must not light up any badge. Gating
// on status here is the single source of truth for all unread surfaces (FAB,
// sidebar Chat tab, chat-window header) — see MUL-4360.
func (q *Queries) ListAllChatSessionsByCreator(ctx context.Context, arg ListAllChatSessionsByCreatorParams) ([]ListAllChatSessionsByCreatorRow, error) {
	rows, err := q.db.Query(ctx, listAllChatSessionsByCreator, arg.WorkspaceID, arg.CreatorID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListAllChatSessionsByCreatorRow{}
	for rows.Next() {
		var i ListAllChatSessionsByCreatorRow
		if err := rows.Scan(
			&i.ID,
			&i.WorkspaceID,
			&i.AgentID,
			&i.CreatorID,
			&i.Title,
			&i.SessionID,
			&i.WorkDir,
			&i.Status,
			&i.CreatedAt,
			&i.UpdatedAt,
			&i.UnreadSince,
			&i.RuntimeID,
			&i.LastReadAt,
			&i.IsAgentIntro,
			&i.PinnedAt,
			&i.ProjectID,
			&i.ExplicitlyCreatedAt,
			&i.UnreadCount,
			&i.LastMessageContent,
			&i.LastMessageRole,
			&i.LastMessageAt,
			&i.LastMessageFailureReason,
			&i.LastMessageKind,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChannelOutboundMessageIDsForContext = `-- name: ListChannelOutboundMessageIDsForContext :many
SELECT external.message_id::text
FROM chat_message AS message
JOIN agent_task_queue AS owner ON owner.id = message.task_id
CROSS JOIN LATERAL unnest(message.channel_outbound_message_ids) AS external(message_id)
WHERE message.chat_session_id = $1
  AND message.role = 'assistant'
  AND message.channel_outbound_type = $2
  AND message.channel_outbound_installation_id = $3
  AND message.channel_outbound_chat_id = $4
  AND message.channel_outbound_message_ids IS NOT NULL
  AND external.message_id = ANY($5::text[])
  AND (
      owner.channel_context_revision = $6
      OR ($6 = 1 AND owner.channel_context_revision IS NULL)
  )
`

type ListChannelOutboundMessageIDsForContextParams struct {
	ChatSessionID          pgtype.UUID `json:"chat_session_id"`
	ChannelType            pgtype.Text `json:"channel_type"`
	InstallationID         pgtype.UUID `json:"installation_id"`
	ChannelChatID          pgtype.Text `json:"channel_chat_id"`
	CandidateMessageIds    []string    `json:"candidate_message_ids"`
	ChannelContextRevision pgtype.Int8 `json:"channel_context_revision"`
}

// Assistant generation is inherited from its owning task, matching
// ListChatMessagesPageForChannelContext. Provider IDs are scoped by session,
// adapter, and immutable generation before being trusted as agent context.
func (q *Queries) ListChannelOutboundMessageIDsForContext(ctx context.Context, arg ListChannelOutboundMessageIDsForContextParams) ([]string, error) {
	rows, err := q.db.Query(ctx, listChannelOutboundMessageIDsForContext,
		arg.ChatSessionID,
		arg.ChannelType,
		arg.InstallationID,
		arg.ChannelChatID,
		arg.CandidateMessageIds,
		arg.ChannelContextRevision,
	)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []string{}
	for rows.Next() {
		var external_message_id string
		if err := rows.Scan(&external_message_id); err != nil {
			return nil, err
		}
		items = append(items, external_message_id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatDraftRestoresBySession = `-- name: ListChatDraftRestoresBySession :many
SELECT id, chat_session_id, task_id, content, attachment_ids, created_at FROM chat_draft_restore
WHERE chat_session_id = $1
ORDER BY created_at ASC
`

func (q *Queries) ListChatDraftRestoresBySession(ctx context.Context, chatSessionID pgtype.UUID) ([]ChatDraftRestore, error) {
	rows, err := q.db.Query(ctx, listChatDraftRestoresBySession, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatDraftRestore{}
	for rows.Next() {
		var i ChatDraftRestore
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.TaskID,
			&i.Content,
			&i.AttachmentIds,
			&i.CreatedAt,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatInputMessages = `-- name: ListChatInputMessages :many
SELECT id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled FROM chat_message
WHERE task_id = $1 AND role = 'user'
ORDER BY created_at ASC, id ASC
`

// Loads the immutable user-message input batch owned by a direct-chat task.
// The caller passes the task's chat_input_task_id (itself for an original send,
// the root task for an auto-retry child), so a claim reads exactly the messages
// the user sent for this turn — and never absorbs a message that arrived after
// the batch was sealed, no matter what the assistant wrote or when. Only used
// for new task-owned direct-chat tasks; legacy/channel (chat_input_task_id
// NULL) tasks keep using ListChatMessagesForLegacyTask + trailingUserMessages.
func (q *Queries) ListChatInputMessages(ctx context.Context, taskID pgtype.UUID) ([]ChatMessage, error) {
	rows, err := q.db.Query(ctx, listChatInputMessages, taskID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatMessage{}
	for rows.Next() {
		var i ChatMessage
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.Role,
			&i.Content,
			&i.TaskID,
			&i.CreatedAt,
			&i.FailureReason,
			&i.ElapsedMs,
			&i.MessageKind,
			&i.ChannelMediaPendingUntil,
			&i.ChannelIngested,
			&i.QuickActions,
			&i.ChannelContextRevision,
			&i.ChannelOutboundType,
			&i.ChannelOutboundInstallationID,
			&i.ChannelOutboundChatID,
			&i.ChannelOutboundMessageIds,
			&i.ChannelTypingSettled,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatMessages = `-- name: ListChatMessages :many
SELECT message.id, message.chat_session_id, message.role, message.content, message.task_id, message.created_at, message.failure_reason, message.elapsed_ms, message.message_kind, message.channel_media_pending_until, message.channel_ingested, message.quick_actions, message.channel_context_revision, message.channel_outbound_type, message.channel_outbound_installation_id, message.channel_outbound_chat_id, message.channel_outbound_message_ids, message.channel_typing_settled FROM chat_message AS message
WHERE message.chat_session_id = $1
  AND message.message_kind != 'channel_command'
  AND NOT (
    message.role = 'user'
    AND EXISTS (
      SELECT 1
      FROM agent_task_queue AS task
      WHERE task.chat_session_id = message.chat_session_id
        AND task.status = 'queued'
        AND task.id = message.task_id
        -- "Queued follow-up" is positional, not the row's transient status:
        -- the first pending task is the current turn even before claim.
        AND task.id <> (
          SELECT head.id
          FROM agent_task_queue AS head
          WHERE head.chat_session_id = $1
            AND head.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
            AND head.regenerate_quick_actions_for IS NULL
          ORDER BY
            CASE
              WHEN head.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
              WHEN head.status = 'deferred' THEN 1
              ELSE 2
            END,
            head.priority DESC,
            head.created_at ASC,
            head.id ASC
          LIMIT 1
        )
    )
  )
ORDER BY message.created_at ASC, message.id ASC
`

// IMPORTANT: the visible-head selector below is also used by
// ListChatMessagesForLegacyTask, ListChatMessagesPage,
// ReanchorClaimedDirectChatInput, ReanchorNextQueuedDirectChatInput,
// ListPendingChatTasksForSession, and CancelQueuedAgentTasksForSession in
// agent.sql. Keep the eligible statuses and ordering identical: a claimed task
// is current, a deferred retry precedes still-queued work, and queued peers use
// claim priority/FIFO order. Background quick-action regeneration is invisible.
// This is a presentation/visibility order, not a scheduling guarantee:
// deferred rows are not claimable before promotion, so a queued row may be
// claimed during the backoff and then becomes the visible claimed head.
func (q *Queries) ListChatMessages(ctx context.Context, chatSessionID pgtype.UUID) ([]ChatMessage, error) {
	rows, err := q.db.Query(ctx, listChatMessages, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatMessage{}
	for rows.Next() {
		var i ChatMessage
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.Role,
			&i.Content,
			&i.TaskID,
			&i.CreatedAt,
			&i.FailureReason,
			&i.ElapsedMs,
			&i.MessageKind,
			&i.ChannelMediaPendingUntil,
			&i.ChannelIngested,
			&i.QuickActions,
			&i.ChannelContextRevision,
			&i.ChannelOutboundType,
			&i.ChannelOutboundInstallationID,
			&i.ChannelOutboundChatID,
			&i.ChannelOutboundMessageIds,
			&i.ChannelTypingSettled,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatMessagesForLegacyTask = `-- name: ListChatMessagesForLegacyTask :many
SELECT message.id, message.chat_session_id, message.role, message.content, message.task_id, message.created_at, message.failure_reason, message.elapsed_ms, message.message_kind, message.channel_media_pending_until, message.channel_ingested, message.quick_actions, message.channel_context_revision, message.channel_outbound_type, message.channel_outbound_installation_id, message.channel_outbound_chat_id, message.channel_outbound_message_ids, message.channel_typing_settled FROM chat_message AS message
WHERE message.chat_session_id = $1
  AND NOT (
    message.role = 'user'
    AND EXISTS (
      SELECT 1
      FROM agent_task_queue AS task
      WHERE task.chat_session_id = message.chat_session_id
        AND task.status = 'queued'
        AND task.id = message.task_id
        AND task.id <> (
          SELECT head.id
          FROM agent_task_queue AS head
          WHERE head.chat_session_id = $1
            AND head.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
            AND head.regenerate_quick_actions_for IS NULL
          ORDER BY
            CASE
              WHEN head.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
              WHEN head.status = 'deferred' THEN 1
              ELSE 2
            END,
            head.priority DESC,
            head.created_at ASC,
            head.id ASC
          LIMIT 1
        )
    )
  )
ORDER BY message.created_at ASC, message.id ASC
`

// Legacy/reclaimed daemon tasks use trailing history, but must not absorb a
// newer queued successor that is already bound to its own user message.
func (q *Queries) ListChatMessagesForLegacyTask(ctx context.Context, chatSessionID pgtype.UUID) ([]ChatMessage, error) {
	rows, err := q.db.Query(ctx, listChatMessagesForLegacyTask, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatMessage{}
	for rows.Next() {
		var i ChatMessage
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.Role,
			&i.Content,
			&i.TaskID,
			&i.CreatedAt,
			&i.FailureReason,
			&i.ElapsedMs,
			&i.MessageKind,
			&i.ChannelMediaPendingUntil,
			&i.ChannelIngested,
			&i.QuickActions,
			&i.ChannelContextRevision,
			&i.ChannelOutboundType,
			&i.ChannelOutboundInstallationID,
			&i.ChannelOutboundChatID,
			&i.ChannelOutboundMessageIds,
			&i.ChannelTypingSettled,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatMessagesPage = `-- name: ListChatMessagesPage :many
SELECT message.id, message.chat_session_id, message.role, message.content, message.task_id, message.created_at, message.failure_reason, message.elapsed_ms, message.message_kind, message.channel_media_pending_until, message.channel_ingested, message.quick_actions, message.channel_context_revision, message.channel_outbound_type, message.channel_outbound_installation_id, message.channel_outbound_chat_id, message.channel_outbound_message_ids, message.channel_typing_settled FROM chat_message AS message
WHERE message.chat_session_id = $1
  AND message.message_kind != 'channel_command'
  AND NOT (
    message.role = 'user'
    AND EXISTS (
      SELECT 1
      FROM agent_task_queue AS task
      WHERE task.chat_session_id = message.chat_session_id
        AND task.status = 'queued'
        AND task.id = message.task_id
        AND task.id <> (
          SELECT head.id
          FROM agent_task_queue AS head
          WHERE head.chat_session_id = $1
            AND head.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
            AND head.regenerate_quick_actions_for IS NULL
          ORDER BY
            CASE
              WHEN head.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
              WHEN head.status = 'deferred' THEN 1
              ELSE 2
            END,
            head.priority DESC,
            head.created_at ASC,
            head.id ASC
          LIMIT 1
        )
    )
  )
  AND (
    $3::timestamptz IS NULL
    OR (message.created_at, message.id) < ($3::timestamptz, $4::uuid)
  )
ORDER BY message.created_at DESC, message.id DESC
LIMIT $2
`

type ListChatMessagesPageParams struct {
	ChatSessionID   pgtype.UUID        `json:"chat_session_id"`
	Limit           int32              `json:"limit"`
	BeforeCreatedAt pgtype.Timestamptz `json:"before_created_at"`
	BeforeID        pgtype.UUID        `json:"before_id"`
}

func (q *Queries) ListChatMessagesPage(ctx context.Context, arg ListChatMessagesPageParams) ([]ChatMessage, error) {
	rows, err := q.db.Query(ctx, listChatMessagesPage,
		arg.ChatSessionID,
		arg.Limit,
		arg.BeforeCreatedAt,
		arg.BeforeID,
	)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatMessage{}
	for rows.Next() {
		var i ChatMessage
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.Role,
			&i.Content,
			&i.TaskID,
			&i.CreatedAt,
			&i.FailureReason,
			&i.ElapsedMs,
			&i.MessageKind,
			&i.ChannelMediaPendingUntil,
			&i.ChannelIngested,
			&i.QuickActions,
			&i.ChannelContextRevision,
			&i.ChannelOutboundType,
			&i.ChannelOutboundInstallationID,
			&i.ChannelOutboundChatID,
			&i.ChannelOutboundMessageIds,
			&i.ChannelTypingSettled,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatMessagesPageForChannelContext = `-- name: ListChatMessagesPageForChannelContext :many
SELECT message.id, message.chat_session_id, message.role, message.content, message.task_id, message.created_at, message.failure_reason, message.elapsed_ms, message.message_kind, message.channel_media_pending_until, message.channel_ingested, message.quick_actions, message.channel_context_revision, message.channel_outbound_type, message.channel_outbound_installation_id, message.channel_outbound_chat_id, message.channel_outbound_message_ids, message.channel_typing_settled
FROM chat_message AS message
LEFT JOIN agent_task_queue AS owner ON owner.id = message.task_id
WHERE message.chat_session_id = $1
  AND message.message_kind != 'channel_command'
  AND (
      (
          message.role = 'user'
          AND (
              message.channel_context_revision = $2
              OR ($2 = 1 AND message.channel_context_revision IS NULL)
          )
      )
      OR
      (
          message.role != 'user'
          AND (
              owner.channel_context_revision = $2
              OR ($2 = 1 AND owner.channel_context_revision IS NULL)
          )
      )
  )
  AND (
    $3::timestamptz IS NULL
    OR (message.created_at, message.id) < ($3::timestamptz, $4::uuid)
  )
ORDER BY message.created_at DESC, message.id DESC
LIMIT $5
`

type ListChatMessagesPageForChannelContextParams struct {
	ChatSessionID          pgtype.UUID        `json:"chat_session_id"`
	ChannelContextRevision pgtype.Int8        `json:"channel_context_revision"`
	BeforeCreatedAt        pgtype.Timestamptz `json:"before_created_at"`
	BeforeID               pgtype.UUID        `json:"before_id"`
	PageLimit              int32              `json:"page_limit"`
}

// Agent-only transcript projection. UI readers continue using the unfiltered
// ListChatMessagesPage query, while a channel task can see only the context
// generation snapshotted on that task. Assistant rows inherit their generation
// from their owning task, so retries and late completions stay in their turn.
func (q *Queries) ListChatMessagesPageForChannelContext(ctx context.Context, arg ListChatMessagesPageForChannelContextParams) ([]ChatMessage, error) {
	rows, err := q.db.Query(ctx, listChatMessagesPageForChannelContext,
		arg.ChatSessionID,
		arg.ChannelContextRevision,
		arg.BeforeCreatedAt,
		arg.BeforeID,
		arg.PageLimit,
	)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ChatMessage{}
	for rows.Next() {
		var i ChatMessage
		if err := rows.Scan(
			&i.ID,
			&i.ChatSessionID,
			&i.Role,
			&i.Content,
			&i.TaskID,
			&i.CreatedAt,
			&i.FailureReason,
			&i.ElapsedMs,
			&i.MessageKind,
			&i.ChannelMediaPendingUntil,
			&i.ChannelIngested,
			&i.QuickActions,
			&i.ChannelContextRevision,
			&i.ChannelOutboundType,
			&i.ChannelOutboundInstallationID,
			&i.ChannelOutboundChatID,
			&i.ChannelOutboundMessageIds,
			&i.ChannelTypingSettled,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listChatSessionsByCreator = `-- name: ListChatSessionsByCreator :many
SELECT cs.id, cs.workspace_id, cs.agent_id, cs.creator_id, cs.title, cs.session_id, cs.work_dir, cs.status, cs.created_at, cs.updated_at, cs.unread_since, cs.runtime_id, cs.last_read_at, cs.is_agent_intro, cs.pinned_at, cs.project_id, cs.explicitly_created_at,
       (SELECT count(*) FROM chat_message m
          WHERE m.chat_session_id = cs.id
            AND m.role = 'assistant'
            AND m.created_at > cs.last_read_at)::int AS unread_count,
       COALESCE(lm.content, '') AS last_message_content,
       COALESCE(lm.role, '') AS last_message_role,
       lm.created_at AS last_message_at,
       lm.failure_reason AS last_message_failure_reason,
       COALESCE(lm.message_kind, '') AS last_message_kind
FROM chat_session cs
LEFT JOIN LATERAL (
  SELECT content, role, created_at, failure_reason, message_kind
    FROM chat_message m
   WHERE m.chat_session_id = cs.id
     AND m.message_kind != 'channel_command'
   ORDER BY m.created_at DESC
   LIMIT 1
) lm ON true
WHERE cs.workspace_id = $1 AND cs.creator_id = $2 AND cs.status = 'active'
  AND (
    cs.explicitly_created_at IS NOT NULL
    OR
    lm.created_at IS NOT NULL
  )
ORDER BY (cs.pinned_at IS NOT NULL) DESC, cs.pinned_at DESC, COALESCE(lm.created_at, cs.updated_at) DESC
`

type ListChatSessionsByCreatorParams struct {
	WorkspaceID pgtype.UUID `json:"workspace_id"`
	CreatorID   pgtype.UUID `json:"creator_id"`
}

type ListChatSessionsByCreatorRow struct {
	ID                       pgtype.UUID        `json:"id"`
	WorkspaceID              pgtype.UUID        `json:"workspace_id"`
	AgentID                  pgtype.UUID        `json:"agent_id"`
	CreatorID                pgtype.UUID        `json:"creator_id"`
	Title                    string             `json:"title"`
	SessionID                pgtype.Text        `json:"session_id"`
	WorkDir                  pgtype.Text        `json:"work_dir"`
	Status                   string             `json:"status"`
	CreatedAt                pgtype.Timestamptz `json:"created_at"`
	UpdatedAt                pgtype.Timestamptz `json:"updated_at"`
	UnreadSince              pgtype.Timestamptz `json:"unread_since"`
	RuntimeID                pgtype.UUID        `json:"runtime_id"`
	LastReadAt               pgtype.Timestamptz `json:"last_read_at"`
	IsAgentIntro             bool               `json:"is_agent_intro"`
	PinnedAt                 pgtype.Timestamptz `json:"pinned_at"`
	ProjectID                pgtype.UUID        `json:"project_id"`
	ExplicitlyCreatedAt      pgtype.Timestamptz `json:"explicitly_created_at"`
	UnreadCount              int32              `json:"unread_count"`
	LastMessageContent       string             `json:"last_message_content"`
	LastMessageRole          string             `json:"last_message_role"`
	LastMessageAt            pgtype.Timestamptz `json:"last_message_at"`
	LastMessageFailureReason pgtype.Text        `json:"last_message_failure_reason"`
	LastMessageKind          string             `json:"last_message_kind"`
}

// IM-style list: each active session with its unread *count* (assistant
// messages after the read cursor), a preview of the latest message, and
// ordered by most-recent activity so a new reply bumps a session to the top.
func (q *Queries) ListChatSessionsByCreator(ctx context.Context, arg ListChatSessionsByCreatorParams) ([]ListChatSessionsByCreatorRow, error) {
	rows, err := q.db.Query(ctx, listChatSessionsByCreator, arg.WorkspaceID, arg.CreatorID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListChatSessionsByCreatorRow{}
	for rows.Next() {
		var i ListChatSessionsByCreatorRow
		if err := rows.Scan(
			&i.ID,
			&i.WorkspaceID,
			&i.AgentID,
			&i.CreatorID,
			&i.Title,
			&i.SessionID,
			&i.WorkDir,
			&i.Status,
			&i.CreatedAt,
			&i.UpdatedAt,
			&i.UnreadSince,
			&i.RuntimeID,
			&i.LastReadAt,
			&i.IsAgentIntro,
			&i.PinnedAt,
			&i.ProjectID,
			&i.ExplicitlyCreatedAt,
			&i.UnreadCount,
			&i.LastMessageContent,
			&i.LastMessageRole,
			&i.LastMessageAt,
			&i.LastMessageFailureReason,
			&i.LastMessageKind,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listPendingChatTasksByCreator = `-- name: ListPendingChatTasksByCreator :many
SELECT atq.id AS task_id, atq.status, atq.chat_session_id, cs.agent_id
FROM agent_task_queue atq
JOIN chat_session cs ON cs.id = atq.chat_session_id
WHERE atq.chat_session_id IS NOT NULL
  AND atq.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
  -- Exclude background quick-actions regeneration passes: they own no assistant
  -- turn and must not surface as "running" chat work (MUL-5149 refresh follow-up).
  AND atq.regenerate_quick_actions_for IS NULL
  AND cs.workspace_id = $1
  AND cs.creator_id = $2
ORDER BY atq.created_at DESC
`

type ListPendingChatTasksByCreatorParams struct {
	WorkspaceID pgtype.UUID `json:"workspace_id"`
	CreatorID   pgtype.UUID `json:"creator_id"`
}

type ListPendingChatTasksByCreatorRow struct {
	TaskID        pgtype.UUID `json:"task_id"`
	Status        string      `json:"status"`
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
	AgentID       pgtype.UUID `json:"agent_id"`
}

// Aggregate view of all in-flight chat tasks owned by a given creator in a
// workspace. Drives the FAB's "running" indicator when the chat window is
// closed and no single session's query is active.
//
// Returns cs.agent_id so the handler can filter tasks belonging to private
// agents the caller has lost access to using the already-loaded `allowed`
// set — no second ListAllChatSessionsByCreator scan on the hot path.
//
// atq.chat_session_id IS NOT NULL is redundant given the JOIN, but stated
// explicitly so the planner can prove the query predicate is a subset of the
// idx_agent_task_queue_chat_pending_v3 partial-index predicate and use it.
func (q *Queries) ListPendingChatTasksByCreator(ctx context.Context, arg ListPendingChatTasksByCreatorParams) ([]ListPendingChatTasksByCreatorRow, error) {
	rows, err := q.db.Query(ctx, listPendingChatTasksByCreator, arg.WorkspaceID, arg.CreatorID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListPendingChatTasksByCreatorRow{}
	for rows.Next() {
		var i ListPendingChatTasksByCreatorRow
		if err := rows.Scan(
			&i.TaskID,
			&i.Status,
			&i.ChatSessionID,
			&i.AgentID,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listPendingChatTasksForSession = `-- name: ListPendingChatTasksForSession :many
SELECT
    task.id,
    task.status,
    task.created_at,
    -- Only meaningful while status is waiting_local_directory: the daemon
    -- stamps which directory this task is parked on and who holds it, so the
    -- StatusPill can say why it is not moving. Stale on any other status; the
    -- renderer reads it only for the waiting one.
    task.wait_reason,
    message.id AS message_id,
    COALESCE(message.content, '')::text AS content
FROM agent_task_queue AS task
LEFT JOIN LATERAL (
    SELECT input.id, input.content
    FROM chat_message AS input
    WHERE input.task_id = COALESCE(task.chat_input_task_id, task.id)
      AND input.role = 'user'
    ORDER BY input.created_at ASC, input.id ASC
    LIMIT 1
) AS message ON TRUE
WHERE task.chat_session_id = $1
  AND task.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
  AND task.regenerate_quick_actions_for IS NULL
ORDER BY
    CASE
      WHEN task.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
      WHEN task.status = 'deferred' THEN 1
      ELSE 2
    END,
    task.priority DESC,
    task.created_at ASC,
    task.id ASC
`

type ListPendingChatTasksForSessionRow struct {
	ID         pgtype.UUID        `json:"id"`
	Status     string             `json:"status"`
	CreatedAt  pgtype.Timestamptz `json:"created_at"`
	WaitReason pgtype.Text        `json:"wait_reason"`
	MessageID  pgtype.UUID        `json:"message_id"`
	Content    string             `json:"content"`
}

// Returns a claimed task first, then a deferred retry, followed by prioritized
// then FIFO queued work. See the shared visible-head invariant above
// ListChatMessages; changing this order requires changing every selector named
// there in the same patch.
// The message lateral join reads only the immutable input owned by each task;
// it avoids loading the session's complete message history just to render a
// one-line queue preview. GetPendingChatTask remains for legacy callers that
// only need an existence check.
func (q *Queries) ListPendingChatTasksForSession(ctx context.Context, chatSessionID pgtype.UUID) ([]ListPendingChatTasksForSessionRow, error) {
	rows, err := q.db.Query(ctx, listPendingChatTasksForSession, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListPendingChatTasksForSessionRow{}
	for rows.Next() {
		var i ListPendingChatTasksForSessionRow
		if err := rows.Scan(
			&i.ID,
			&i.Status,
			&i.CreatedAt,
			&i.WaitReason,
			&i.MessageID,
			&i.Content,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const listUnownedChannelChatContextRevisions = `-- name: ListUnownedChannelChatContextRevisions :many
WITH pending AS (
    SELECT DISTINCT COALESCE(channel_context_revision, 1)::bigint AS context_revision
    FROM chat_message
    WHERE chat_session_id = $1
      AND role = 'user'
      AND task_id IS NULL
      AND message_kind != 'channel_command'
)
SELECT pending.context_revision, generation.initiator_user_id
FROM pending
LEFT JOIN channel_chat_context_generation AS generation
  ON generation.chat_session_id = $1
 AND generation.revision = pending.context_revision
ORDER BY pending.context_revision
`

type ListUnownedChannelChatContextRevisionsRow struct {
	ContextRevision int64       `json:"context_revision"`
	InitiatorUserID pgtype.UUID `json:"initiator_user_id"`
}

// Returns every durable context generation that still has channel input without
// a task owner. A process crash drops in-memory debounce timers; the next normal
// inbound message uses this list to re-arm older generations instead of only
// recovering the current one. Legacy NULL revisions are generation 1.
func (q *Queries) ListUnownedChannelChatContextRevisions(ctx context.Context, chatSessionID pgtype.UUID) ([]ListUnownedChannelChatContextRevisionsRow, error) {
	rows, err := q.db.Query(ctx, listUnownedChannelChatContextRevisions, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []ListUnownedChannelChatContextRevisionsRow{}
	for rows.Next() {
		var i ListUnownedChannelChatContextRevisionsRow
		if err := rows.Scan(&i.ContextRevision, &i.InitiatorUserID); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const lockChatSessionForAppend = `-- name: LockChatSessionForAppend :one
SELECT id FROM chat_session
WHERE id = $1
FOR KEY SHARE
`

// The append transaction's first lock. FOR KEY SHARE remains compatible with
// task enqueue's FOR NO KEY UPDATE while establishing chat_session -> binding
// -> generation order before the later TouchChatSession update.
func (q *Queries) LockChatSessionForAppend(ctx context.Context, id pgtype.UUID) (pgtype.UUID, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForAppend, id)
	var id_2 pgtype.UUID
	err := row.Scan(&id_2)
	return id_2, err
}

const lockChatSessionForDelete = `-- name: LockChatSessionForDelete :one
SELECT id FROM chat_session
WHERE id = $1
FOR UPDATE
`

// Acquires an exclusive (FOR UPDATE) row lock on chat_session(id). Used by
// the delete path so that a concurrent SendChatMessage cannot enqueue a new
// agent_task_queue row referencing this session between our cancel and
// delete steps. The FK from agent_task_queue.chat_session_id takes a
// KEY SHARE lock on the parent row during INSERT validation, which
// conflicts with FOR UPDATE — concurrent inserts block here and then fail
// their FK check after we commit the delete.
func (q *Queries) LockChatSessionForDelete(ctx context.Context, id pgtype.UUID) (pgtype.UUID, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForDelete, id)
	var id_2 pgtype.UUID
	err := row.Scan(&id_2)
	return id_2, err
}

const lockChatSessionForDraftWrite = `-- name: LockChatSessionForDraftWrite :one
SELECT id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at FROM chat_session
WHERE id = $1
FOR UPDATE
`

// The autosave half of the agent_builder_draft protocol, and the writer's
// answer to LockChatSessionForDelete.
//
// agent_builder_draft carries no chat_session FK (repo rule), so an INSERT into
// it takes no lock on the parent row and nothing stops a draft from landing
// after its conversation is gone: the save path read the session, the delete
// transaction then committed, and the upsert still succeeded — leaving a row
// the user explicitly discarded, invisible to the UI and unreachable by every
// prune except the workspace teardown. The FK that would have rejected that
// INSERT is the one we are not allowed to have, so the lock replaces it.
//
// Returns the whole row, not just the id: the caller must re-check creator and
// status INSIDE the transaction, because a save blocked here resumes holding
// values it read before blocking (the same reason the runtime-bind path re-reads
// the agent under its lock).
//
// Same row and same lock mode as LockChatSessionForDelete and
// LockChatSessionForRuntimeBind, taken as the transaction's first statement, so
// no ordering against the repo-wide chat_session -> agent_task_queue sequence is
// introduced and none of the three can deadlock against each other.
func (q *Queries) LockChatSessionForDraftWrite(ctx context.Context, id pgtype.UUID) (ChatSession, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForDraftWrite, id)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const lockChatSessionForEnqueue = `-- name: LockChatSessionForEnqueue :one
SELECT id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at FROM chat_session
WHERE id = $1
FOR NO KEY UPDATE
`

// The chat-task enqueue's answer to archiving, and the one lock on this row
// that a concurrent inbound message must NOT wait behind.
//
// The channel run trigger is debounced, so the message is persisted the moment
// it arrives and the task row is created a window later. An archive committing
// inside that window cancels the tasks it can see — there are none yet — and
// deletes the channel binding, and the flush then enqueues onto a conversation
// the user closed. ClaimAgentTask does not read chat_session.status, so the
// daemon runs it. Taking this lock as the enqueue transaction's first
// statement and re-reading status under it makes both interleavings safe:
// enqueue-then-archive is caught by the archive's cancel, archive-then-enqueue
// is refused here.
//
// FOR NO KEY UPDATE, not the FOR UPDATE the delete / runtime-bind / draft locks
// take, and the difference is the point. Those three want to block concurrent
// INSERTs that reference this row: FOR UPDATE conflicts with the FOR KEY SHARE
// an FK insert takes on its parent, which is exactly how LockChatSessionForDelete
// stops a send from slipping a task in between its cancel and its delete. This
// lock wants the opposite. Every inbound channel message is an INSERT into
// chat_message, FK'd to this same row, and the flush it eventually triggers
// holds this lock for the whole enqueue — under FOR UPDATE the room's next
// message would block behind the previous message's enqueue. FOR NO KEY UPDATE
// does not conflict with FOR KEY SHARE, so appends keep flowing, while it still
// conflicts with FOR UPDATE and with FOR NO KEY UPDATE — which is what
// SetChatSessionArchived's UPDATE (status is not a key column) and the delete
// path's lock take. So the archive and the delete still serialise against this
// enqueue in both directions, which is all this guard needs.
//
// Returns the whole row, not just the id, for the same reason
// LockChatSessionForDraftWrite does: the caller must re-check status INSIDE the
// transaction, because an enqueue blocked here resumes holding the row it read
// before blocking — and the archive is what it was blocked on.
//
// Same row and same position (first statement) as the other three, so the
// repo-wide chat_session -> agent_task_queue order is unchanged and no new
// deadlock edge is introduced.
func (q *Queries) LockChatSessionForEnqueue(ctx context.Context, id pgtype.UUID) (ChatSession, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForEnqueue, id)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const lockChatSessionForRuntimeBind = `-- name: LockChatSessionForRuntimeBind :one
SELECT id FROM chat_session
WHERE id = $1
FOR UPDATE
`

// Acquires an exclusive (FOR UPDATE) row lock on chat_session(id), serialising
// "which runtime does this session execute on" against "enqueue the next task".
//
// Both SendDirectChatMessage and the agent-builder runtime switch take this lock
// for their whole transaction. Without it the two are a read-then-write race: a
// send reads the carrier agent's runtime_id, the switch then passes its
// pending-task check and rebinds the carrier, and the send finally inserts a task
// still stamped with the pre-switch runtime — so the user is told the switch
// succeeded while their message runs on the old runtime (MUL-5163).
//
// The lock alone is not sufficient: the send path must also re-read the agent
// INSIDE the locked transaction, because a send blocked at INSERT would otherwise
// resume and write the runtime_id it read before blocking.
//
// Same row and same lock mode as LockChatSessionForDelete, and both take it as
// their first statement, so the delete path and this one cannot deadlock.
func (q *Queries) LockChatSessionForRuntimeBind(ctx context.Context, id pgtype.UUID) (pgtype.UUID, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForRuntimeBind, id)
	var id_2 pgtype.UUID
	err := row.Scan(&id_2)
	return id_2, err
}

const lockChatSessionForTask = `-- name: LockChatSessionForTask :one

SELECT cs.id
FROM agent_task_queue t
JOIN chat_session cs ON cs.id = t.chat_session_id
WHERE t.id = $1
FOR UPDATE OF cs
`

// The chat_session row lock is the mutual-exclusion protocol between the
// draft-restore writer (FinalizeDeferredCancelledChat) and every deleter of a
// chat_session or one of its cascade parents. Without an FK, an INSERT into
// chat_draft_restore takes no lock on its session, so a prune-then-delete would
// otherwise miss a restore committed after its snapshot and strand it — with the
// user's prompt in it — forever (#5219).
//
// The contract, held by all five paths below:
//
//	deleter:   lock the sessions FOR UPDATE -> prune restores -> delete the parent
//	finalizer: lock the session FOR UPDATE  -> insert the restore
//
// Whoever locks first wins: a finalizer that got there first commits its row
// before the deleter's prune statement takes its snapshot, so the prune sweeps
// it; a deleter that got there first leaves no session for the finalizer to
// lock, so it never inserts.
//
// Lock order is chat_session -> agent_task_queue everywhere (the finalizer locks
// the session before claiming its task) so the deleters' cascade into
// agent_task_queue cannot deadlock against it.
//
// The single-session delete path needs no new query: it already holds
// LockChatSessionForDelete (same FOR UPDATE row lock) across its prune.
// The finalizer's half of the protocol. No rows means the session is already
// gone (its cascade NULLs agent_task_queue.chat_session_id), so there is nothing
// to lock and nothing to restore into.
func (q *Queries) LockChatSessionForTask(ctx context.Context, id pgtype.UUID) (pgtype.UUID, error) {
	row := q.db.QueryRow(ctx, lockChatSessionForTask, id)
	var id_2 pgtype.UUID
	err := row.Scan(&id_2)
	return id_2, err
}

const lockChatSessionsBySystemRuntimeAgents = `-- name: LockChatSessionsBySystemRuntimeAgents :many
SELECT cs.id FROM chat_session cs
JOIN agent a ON a.id = cs.agent_id
WHERE a.runtime_id = $1 AND a.kind = 'system'
ORDER BY cs.id
FOR UPDATE OF cs
`

func (q *Queries) LockChatSessionsBySystemRuntimeAgents(ctx context.Context, runtimeID pgtype.UUID) ([]pgtype.UUID, error) {
	rows, err := q.db.Query(ctx, lockChatSessionsBySystemRuntimeAgents, runtimeID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []pgtype.UUID{}
	for rows.Next() {
		var id pgtype.UUID
		if err := rows.Scan(&id); err != nil {
			return nil, err
		}
		items = append(items, id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const lockChatSessionsByWorkspace = `-- name: LockChatSessionsByWorkspace :many
SELECT id FROM chat_session
WHERE workspace_id = $1
ORDER BY id
FOR UPDATE
`

// ORDER BY id: a stable lock order keeps two concurrent deleters from
// deadlocking against each other.
func (q *Queries) LockChatSessionsByWorkspace(ctx context.Context, workspaceID pgtype.UUID) ([]pgtype.UUID, error) {
	rows, err := q.db.Query(ctx, lockChatSessionsByWorkspace, workspaceID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []pgtype.UUID{}
	for rows.Next() {
		var id pgtype.UUID
		if err := rows.Scan(&id); err != nil {
			return nil, err
		}
		items = append(items, id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const markChatSessionExplicitlyCreated = `-- name: MarkChatSessionExplicitlyCreated :one
UPDATE chat_session
SET explicitly_created_at = COALESCE(explicitly_created_at, now())
WHERE id = $1
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

func (q *Queries) MarkChatSessionExplicitlyCreated(ctx context.Context, id pgtype.UUID) (ChatSession, error) {
	row := q.db.QueryRow(ctx, markChatSessionExplicitlyCreated, id)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const markChatSessionRead = `-- name: MarkChatSessionRead :exec
UPDATE chat_session SET last_read_at = now()
WHERE id = $1
`

// Advances the read cursor to now, dropping the session's unread_count to 0.
func (q *Queries) MarkChatSessionRead(ctx context.Context, id pgtype.UUID) error {
	_, err := q.db.Exec(ctx, markChatSessionRead, id)
	return err
}

const prioritizeQueuedChatTask = `-- name: PrioritizeQueuedChatTask :one
WITH target AS MATERIALIZED (
  SELECT candidate.id
  FROM agent_task_queue AS candidate
  WHERE candidate.id = $2
    AND candidate.chat_session_id = $1
    AND candidate.status = 'queued'
    -- "Send now" is valid only while there is a visible claimed task for the
    -- client to cancel. If the visible head is still queued (or deferred), the
    -- selected row would otherwise replace it without any active_task_id.
    AND EXISTS (
      SELECT 1
      FROM agent_task_queue AS active
      WHERE active.chat_session_id = $1
        AND active.status IN ('dispatched', 'running', 'waiting_local_directory')
        AND active.regenerate_quick_actions_for IS NULL
    )
  FOR UPDATE
), demoted AS (
  UPDATE agent_task_queue AS queued
  SET priority = 3
  WHERE queued.chat_session_id = $1
    AND queued.id <> $2
    AND queued.status = 'queued'
    AND queued.priority >= 4
    AND EXISTS (SELECT 1 FROM target)
), prioritized AS (
  UPDATE agent_task_queue AS selected
  SET priority = 4
  FROM target
  WHERE selected.id = target.id
  RETURNING selected.id
)
SELECT
  prioritized.id AS task_id,
  (
    SELECT active.id
    FROM agent_task_queue AS active
    WHERE active.chat_session_id = $1
      AND active.status IN ('dispatched', 'running', 'waiting_local_directory')
      AND active.regenerate_quick_actions_for IS NULL
    ORDER BY active.created_at ASC, active.id ASC
    LIMIT 1
  )::uuid AS active_task_id
FROM prioritized
`

type PrioritizeQueuedChatTaskParams struct {
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
	ID            pgtype.UUID `json:"id"`
}

type PrioritizeQueuedChatTaskRow struct {
	TaskID       pgtype.UUID `json:"task_id"`
	ActiveTaskID pgtype.UUID `json:"active_task_id"`
}

func (q *Queries) PrioritizeQueuedChatTask(ctx context.Context, arg PrioritizeQueuedChatTaskParams) (PrioritizeQueuedChatTaskRow, error) {
	row := q.db.QueryRow(ctx, prioritizeQueuedChatTask, arg.ChatSessionID, arg.ID)
	var i PrioritizeQueuedChatTaskRow
	err := row.Scan(&i.TaskID, &i.ActiveTaskID)
	return i, err
}

const promoteChannelChatTasksIfMediaReady = `-- name: PromoteChannelChatTasksIfMediaReady :many
UPDATE agent_task_queue AS task
SET status = 'queued', fire_at = NULL
WHERE task.chat_session_id = $1
  AND task.status = 'deferred'
  AND task.issue_id IS NULL
  AND task.parent_task_id IS NULL
  AND task.escalation_for_task_id IS NULL
  AND NOT EXISTS (
      SELECT 1
      FROM chat_message AS message
      WHERE message.task_id = task.id
        AND message.role = 'user'
        AND message.channel_media_pending_until > now()
  )
RETURNING task.id, task.agent_id, task.issue_id, task.status, task.priority, task.dispatched_at, task.started_at, task.completed_at, task.result, task.error, task.created_at, task.context, task.runtime_id, task.session_id, task.work_dir, task.trigger_comment_id, task.chat_session_id, task.autopilot_run_id, task.attempt, task.max_attempts, task.parent_task_id, task.failure_reason, task.trigger_summary, task.force_fresh_session, task.is_leader_task, task.wait_reason, task.initiator_user_id, task.handoff_note, task.prepare_lease_expires_at, task.squad_id, task.runtime_mcp_overlay, task.escalation_for_task_id, task.fire_at, task.originator_user_id, task.runtime_connected_apps, task.coalesced_comment_ids, task.delivered_comment_ids, task.chat_input_task_id, task.chat_finalize_deferred_at, task.originator_source, task.delegated_from_task_id, task.retry_of_task_id, task.rerun_of_task_id, task.rule_version_id, task.trigger_evidence_kind, task.trigger_evidence_ref_id, task.accountable_user_id, task.session_rollout_missing, task.retired_session_id, task.quick_actions_disabled, task.regenerate_quick_actions_for, task.branch_name, task.durable_work_dir, task.channel_context_revision, task.comment_thread_id, task.cancelled_by_type, task.cancelled_by_id, task.cancelled_by_name, task.issue_snapshot, task.workflow_step
`

// Media completion may race with the 3s run batcher. Promote every original
// channel task waiting for this session only after all unexpired media markers
// are gone; retry/escalation/direct-chat deferred tasks are excluded. The
// marker scan uses the same population as GetChannelMediaPendingUntil and the
// seal: a channel_command turn belongs to no batch, so it must not hold a
// deferred task back either.
func (q *Queries) PromoteChannelChatTasksIfMediaReady(ctx context.Context, chatSessionID pgtype.UUID) ([]AgentTaskQueue, error) {
	rows, err := q.db.Query(ctx, promoteChannelChatTasksIfMediaReady, chatSessionID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []AgentTaskQueue{}
	for rows.Next() {
		var i AgentTaskQueue
		if err := rows.Scan(
			&i.ID,
			&i.AgentID,
			&i.IssueID,
			&i.Status,
			&i.Priority,
			&i.DispatchedAt,
			&i.StartedAt,
			&i.CompletedAt,
			&i.Result,
			&i.Error,
			&i.CreatedAt,
			&i.Context,
			&i.RuntimeID,
			&i.SessionID,
			&i.WorkDir,
			&i.TriggerCommentID,
			&i.ChatSessionID,
			&i.AutopilotRunID,
			&i.Attempt,
			&i.MaxAttempts,
			&i.ParentTaskID,
			&i.FailureReason,
			&i.TriggerSummary,
			&i.ForceFreshSession,
			&i.IsLeaderTask,
			&i.WaitReason,
			&i.InitiatorUserID,
			&i.HandoffNote,
			&i.PrepareLeaseExpiresAt,
			&i.SquadID,
			&i.RuntimeMcpOverlay,
			&i.EscalationForTaskID,
			&i.FireAt,
			&i.OriginatorUserID,
			&i.RuntimeConnectedApps,
			&i.CoalescedCommentIds,
			&i.DeliveredCommentIds,
			&i.ChatInputTaskID,
			&i.ChatFinalizeDeferredAt,
			&i.OriginatorSource,
			&i.DelegatedFromTaskID,
			&i.RetryOfTaskID,
			&i.RerunOfTaskID,
			&i.RuleVersionID,
			&i.TriggerEvidenceKind,
			&i.TriggerEvidenceRefID,
			&i.AccountableUserID,
			&i.SessionRolloutMissing,
			&i.RetiredSessionID,
			&i.QuickActionsDisabled,
			&i.RegenerateQuickActionsFor,
			&i.BranchName,
			&i.DurableWorkDir,
			&i.ChannelContextRevision,
			&i.CommentThreadID,
			&i.CancelledByType,
			&i.CancelledByID,
			&i.CancelledByName,
			&i.IssueSnapshot,
			&i.WorkflowStep,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const reanchorClaimedDirectChatInput = `-- name: ReanchorClaimedDirectChatInput :exec
WITH latest_visible AS (
    SELECT
        claimed_input.id AS claimed_input_id,
        claimed_input.created_at AS input_created_at,
        prior.created_at AS prior_created_at
    FROM chat_message AS claimed_input
    CROSS JOIN LATERAL (
        SELECT prior.created_at
        FROM chat_message AS prior
        WHERE prior.chat_session_id = claimed_input.chat_session_id
          AND prior.id != claimed_input.id
          AND NOT (
            prior.role = 'user'
            AND EXISTS (
              SELECT 1
              FROM agent_task_queue AS queued_task
              WHERE queued_task.chat_session_id = prior.chat_session_id
                AND queued_task.status = 'queued'
                AND queued_task.id = prior.task_id
                AND queued_task.id <> (
                  SELECT head.id
                  FROM agent_task_queue AS head
                  WHERE head.chat_session_id = claimed_input.chat_session_id
                    AND head.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
                    AND head.regenerate_quick_actions_for IS NULL
                  ORDER BY
                    CASE
                      WHEN head.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
                      WHEN head.status = 'deferred' THEN 1
                      ELSE 2
                    END,
                    head.priority DESC,
                    head.created_at ASC,
                    head.id ASC
                  LIMIT 1
                )
            )
          )
        ORDER BY prior.created_at DESC, prior.id DESC
        LIMIT 1
    ) AS prior
    WHERE claimed_input.task_id = $2
      AND claimed_input.role = 'user'
      AND NOT claimed_input.channel_ingested
      -- The adopted onboarding kickoff is never a visible row, so it has no
      -- turn boundary to correct — and reanchoring it would actively break the
      -- one thing its position controls. It is deliberately older than the
      -- member's message so the runtime reads "context, then their words";
      -- moving it to dispatch time reverses that, and because the batch's two
      -- rows would then share one timestamp, their order falls to random UUIDs
      -- (MUL-5827).
      AND claimed_input.message_kind <> 'onboarding_kickoff'
)
UPDATE chat_message AS claimed_input
SET created_at = GREATEST(
    $1::timestamptz,
    latest_visible.prior_created_at + interval '1 microsecond'
)
FROM latest_visible
WHERE claimed_input.id = latest_visible.claimed_input_id
  AND latest_visible.prior_created_at >= latest_visible.input_created_at
`

type ReanchorClaimedDirectChatInputParams struct {
	DispatchedAt pgtype.Timestamptz `json:"dispatched_at"`
	TaskID       pgtype.UUID        `json:"task_id"`
}

// An idle direct send is visible while it is the positional queue head. A
// older/pre-deploy follow-up whose enqueue timestamp puts it before a newer
// settled reply can still reach claim; this is the fallback that moves only
// that out-of-order user row to the new turn boundary. In-order visible heads
// keep their original timestamp, so an idle send already returned to a cursor
// client never moves merely because a daemon claimed it.
//
// The task's own created_at remains immutable and continues to drive queue
// FIFO, wait duration, and elapsed time. Only the message timestamp changes,
// preserving the existing public ordering/cursor contract for older clients.
// Add one microsecond when the DB clock ties the latest visible row so UUID
// ordering can never put the new user turn before the previous assistant row.
//
// channel_ingested excludes sealed Slack/Lark batches, which can own multiple
// user rows and must preserve their original provider order. A direct send
// owns exactly one non-channel user row today; if direct batching is added,
// this query must assign a stable per-row offset instead of one timestamp.
// Retry children are excluded by the caller because their chat_input_task_id
// names the root task rather than themselves. Stale dispatched reclaim bypasses
// this query, so re-delivery does not move an already-visible turn.
//
// Lock order is task row first (ClaimAgentTask), then this non-FK message-only
// update. The visibility subqueries take no row locks, avoiding an inverse
// message -> task lock edge with send/completion transactions.
func (q *Queries) ReanchorClaimedDirectChatInput(ctx context.Context, arg ReanchorClaimedDirectChatInputParams) error {
	_, err := q.db.Exec(ctx, reanchorClaimedDirectChatInput, arg.DispatchedAt, arg.TaskID)
	return err
}

const reanchorNextQueuedDirectChatInput = `-- name: ReanchorNextQueuedDirectChatInput :exec
UPDATE chat_message AS queued_input
SET created_at = $2::timestamptz + interval '1 microsecond'
WHERE queued_input.chat_session_id = $1
  AND queued_input.role = 'user'
  AND NOT queued_input.channel_ingested
  -- Same exclusion, same reason as ReanchorClaimedDirectChatInput: the hidden
  -- kickoff has no visible position to fix, and moving it would put the
  -- product's context after the member's message inside one input batch.
  AND queued_input.message_kind <> 'onboarding_kickoff'
  AND queued_input.created_at <= $2::timestamptz
  AND EXISTS (
    SELECT 1
    FROM agent_task_queue AS queued_task
    WHERE queued_task.id = queued_input.task_id
      AND queued_task.chat_session_id = queued_input.chat_session_id
      AND queued_task.status = 'queued'
      AND queued_task.chat_input_task_id = queued_task.id
      AND queued_task.regenerate_quick_actions_for IS NULL
      AND queued_task.id = (
        SELECT head.id
        FROM agent_task_queue AS head
        WHERE head.chat_session_id = queued_input.chat_session_id
          AND head.status IN ('queued', 'dispatched', 'running', 'waiting_local_directory', 'deferred')
          AND head.regenerate_quick_actions_for IS NULL
        ORDER BY
          CASE
            WHEN head.status IN ('dispatched', 'running', 'waiting_local_directory') THEN 0
            WHEN head.status = 'deferred' THEN 1
            ELSE 2
          END,
          head.priority DESC,
          head.created_at ASC,
          head.id ASC
        LIMIT 1
      )
  )
`

type ReanchorNextQueuedDirectChatInputParams struct {
	ChatSessionID      pgtype.UUID        `json:"chat_session_id"`
	AssistantCreatedAt pgtype.Timestamptz `json:"assistant_created_at"`
}

// An assistant outcome can make the next queued direct task the positional
// head before a daemon claims it (MUL-5750). Its user row was persisted before
// this reply, so move that still-hidden single-row input just after the reply.
// Callers run this immediately after CreateChatMessage in the same transaction:
// readers see either the old active head without the reply, or the settled
// reply followed by the newly-visible head — never user B before assistant A.
// Channel batches are excluded because their immutable provider ordering may
// contain multiple user rows. Direct chat currently owns exactly one row; if
// direct batching is added, assign stable per-row offsets here.
func (q *Queries) ReanchorNextQueuedDirectChatInput(ctx context.Context, arg ReanchorNextQueuedDirectChatInputParams) error {
	_, err := q.db.Exec(ctx, reanchorNextQueuedDirectChatInput, arg.ChatSessionID, arg.AssistantCreatedAt)
	return err
}

const releaseOnboardingKickoffFromTask = `-- name: ReleaseOnboardingKickoffFromTask :exec
UPDATE chat_message
SET task_id = (
    SELECT successor.id
    FROM agent_task_queue AS successor
    WHERE successor.chat_session_id = chat_message.chat_session_id
      AND successor.status = 'queued'
      AND successor.chat_input_task_id = successor.id
      AND successor.regenerate_quick_actions_for IS NULL
      AND successor.id <> $1
    ORDER BY successor.priority DESC, successor.created_at ASC, successor.id ASC
    LIMIT 1
)
WHERE task_id = $1
  AND role = 'user'
  AND message_kind = 'onboarding_kickoff'
`

// Hands an adopted kickoff on to the session's next un-started turn when its
// own turn dies (terminal failure, cancel, edit), falling back to unowned when
// there is no such turn.
//
// Handing off rather than simply clearing to NULL is what closes the queued
// successor case. Adoption happens inside a send's transaction, so a message
// queued WHILE the kickoff's turn was still running found nothing to adopt and
// never gets another chance: clearing to NULL would leave that already-sealed
// turn to execute with no onboarding skill, no profile block, and no record
// that Mika had already greeted the member — exactly the double-introduction
// this design exists to prevent — while a later message could pick the kickoff
// up instead, delivering the context to the wrong turn.
//
// Target restrictions, each load-bearing:
//   - status = 'queued' only. A dispatched/running turn has already had its
//     prompt built from its input batch, so joining it now would consume the
//     kickoff without ever delivering it.
//   - chat_input_task_id = id selects roots that own their own input batch. A
//     retry child names its root instead, and the kickoff is already reachable
//     through that root, so a retry must not be re-targeted.
//   - regenerate_quick_actions_for IS NULL skips background suggestion passes,
//     which carry no user input and are invisible in the transcript.
//
// Ordering matches the shared visible-head selector above ListChatMessages, so
// the kickoff lands on whichever turn the member will actually see run next.
func (q *Queries) ReleaseOnboardingKickoffFromTask(ctx context.Context, id pgtype.UUID) error {
	_, err := q.db.Exec(ctx, releaseOnboardingKickoffFromTask, id)
	return err
}

const replaceImplicitChatSessionTitle = `-- name: ReplaceImplicitChatSessionTitle :one
UPDATE chat_session AS session
SET title = $1
WHERE session.id = $2
  AND session.explicitly_created_at IS NULL
  AND NOT EXISTS (
    SELECT 1 FROM chat_message AS message
    WHERE message.chat_session_id = session.id
      AND message.role = 'user'
      AND message.message_kind != 'channel_command'
  )
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type ReplaceImplicitChatSessionTitleParams struct {
	Title string      `json:"title"`
	ID    pgtype.UUID `json:"id"`
}

// Hidden channel sessions were not user-visible or manually renameable before
// their first ordinary turn. Replace the legacy platform-generic title (or the
// new empty placeholder) under the append transaction's route fence. An empty
// title deliberately prepares a media-only first turn for attachment naming.
func (q *Queries) ReplaceImplicitChatSessionTitle(ctx context.Context, arg ReplaceImplicitChatSessionTitleParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, replaceImplicitChatSessionTitle, arg.Title, arg.ID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const setChatMessageChannelOutboundProvenanceByTask = `-- name: SetChatMessageChannelOutboundProvenanceByTask :execrows
UPDATE chat_message
SET channel_outbound_type = $1,
    channel_outbound_installation_id = $2,
    channel_outbound_chat_id = $3,
    channel_outbound_message_ids = $4::text[]
WHERE task_id = $5
  AND role = 'assistant'
`

type SetChatMessageChannelOutboundProvenanceByTaskParams struct {
	ChannelType    pgtype.Text `json:"channel_type"`
	InstallationID pgtype.UUID `json:"installation_id"`
	ChannelChatID  pgtype.Text `json:"channel_chat_id"`
	MessageIds     []string    `json:"message_ids"`
	TaskID         pgtype.UUID `json:"task_id"`
}

// The assistant row is committed before EventChatDone is published. Attach the
// external identifiers produced by the adapter to that durable turn so a live
// provider-history reader can apply the same context-generation boundary as
// the stored transcript. A send that succeeds but cannot record provenance is
// deliberately treated as unknown (and therefore excluded from generation >1).
func (q *Queries) SetChatMessageChannelOutboundProvenanceByTask(ctx context.Context, arg SetChatMessageChannelOutboundProvenanceByTaskParams) (int64, error) {
	result, err := q.db.Exec(ctx, setChatMessageChannelOutboundProvenanceByTask,
		arg.ChannelType,
		arg.InstallationID,
		arg.ChannelChatID,
		arg.MessageIds,
		arg.TaskID,
	)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const setChatMessageQuickActionsByTask = `-- name: SetChatMessageQuickActionsByTask :one
UPDATE chat_message
SET quick_actions = $2
WHERE id = (
    SELECT inner_msg.id FROM chat_message AS inner_msg
    WHERE inner_msg.task_id = $1 AND inner_msg.role = 'assistant'
    ORDER BY inner_msg.created_at DESC
    LIMIT 1
)
RETURNING id, chat_session_id, role, content, task_id, created_at, failure_reason, elapsed_ms, message_kind, channel_media_pending_until, channel_ingested, quick_actions, channel_context_revision, channel_outbound_type, channel_outbound_installation_id, channel_outbound_chat_id, channel_outbound_message_ids, channel_typing_settled
`

type SetChatMessageQuickActionsByTaskParams struct {
	TaskID       pgtype.UUID `json:"task_id"`
	QuickActions []byte      `json:"quick_actions"`
}

func (q *Queries) SetChatMessageQuickActionsByTask(ctx context.Context, arg SetChatMessageQuickActionsByTaskParams) (ChatMessage, error) {
	row := q.db.QueryRow(ctx, setChatMessageQuickActionsByTask, arg.TaskID, arg.QuickActions)
	var i ChatMessage
	err := row.Scan(
		&i.ID,
		&i.ChatSessionID,
		&i.Role,
		&i.Content,
		&i.TaskID,
		&i.CreatedAt,
		&i.FailureReason,
		&i.ElapsedMs,
		&i.MessageKind,
		&i.ChannelMediaPendingUntil,
		&i.ChannelIngested,
		&i.QuickActions,
		&i.ChannelContextRevision,
		&i.ChannelOutboundType,
		&i.ChannelOutboundInstallationID,
		&i.ChannelOutboundChatID,
		&i.ChannelOutboundMessageIds,
		&i.ChannelTypingSettled,
	)
	return i, err
}

const setChatSessionArchived = `-- name: SetChatSessionArchived :one
UPDATE chat_session
SET status = CASE WHEN $2::bool THEN 'archived' ELSE 'active' END,
    updated_at = now()
WHERE id = $1
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type SetChatSessionArchivedParams struct {
	ID       pgtype.UUID `json:"id"`
	Archived bool        `json:"archived"`
}

// Archive/unarchive a chat session by flipping status between 'active' and
// 'archived'. Bumps updated_at so the row re-sorts on the receiving list. The
// send-message path refuses archived sessions (see SendChatMessage), so the
// conversation is effectively read-only until it is unarchived.
func (q *Queries) SetChatSessionArchived(ctx context.Context, arg SetChatSessionArchivedParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, setChatSessionArchived, arg.ID, arg.Archived)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const setChatSessionPinned = `-- name: SetChatSessionPinned :one
UPDATE chat_session
SET pinned_at = CASE WHEN $2::bool THEN COALESCE(pinned_at, now()) ELSE NULL END
WHERE id = $1
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type SetChatSessionPinnedParams struct {
	ID     pgtype.UUID `json:"id"`
	Pinned bool        `json:"pinned"`
}

// Pin/unpin a chat. Deliberately does NOT touch updated_at: pinning is a
// list-ordering preference, not activity, so it must not bump the session's
// last-activity sort key (which would make an unpinned chat jump the list).
// pinned = true stamps pinned_at only when it was NULL, so re-pinning keeps
// the original pin order; pinned = false clears it.
func (q *Queries) SetChatSessionPinned(ctx context.Context, arg SetChatSessionPinnedParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, setChatSessionPinned, arg.ID, arg.Pinned)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const setChatTaskInputOwnerSelf = `-- name: SetChatTaskInputOwnerSelf :one
UPDATE agent_task_queue
SET chat_input_task_id = id
WHERE id = $1
RETURNING id, agent_id, issue_id, status, priority, dispatched_at, started_at, completed_at, result, error, created_at, context, runtime_id, session_id, work_dir, trigger_comment_id, chat_session_id, autopilot_run_id, attempt, max_attempts, parent_task_id, failure_reason, trigger_summary, force_fresh_session, is_leader_task, wait_reason, initiator_user_id, handoff_note, prepare_lease_expires_at, squad_id, runtime_mcp_overlay, escalation_for_task_id, fire_at, originator_user_id, runtime_connected_apps, coalesced_comment_ids, delivered_comment_ids, chat_input_task_id, chat_finalize_deferred_at, originator_source, delegated_from_task_id, retry_of_task_id, rerun_of_task_id, rule_version_id, trigger_evidence_kind, trigger_evidence_ref_id, accountable_user_id, session_rollout_missing, retired_session_id, quick_actions_disabled, regenerate_quick_actions_for, branch_name, durable_work_dir, channel_context_revision, comment_thread_id, cancelled_by_type, cancelled_by_id, cancelled_by_name, issue_snapshot, workflow_step
`

// Stamps a freshly-created direct-chat task as the owner of its own input batch
// (chat_input_task_id = id), so a later claim loads exactly the user messages
// tagged with this task id (ListChatInputMessages) rather than scanning trailing
// history. Runs in the same transaction as CreateChatTask + message ownership:
// direct-send inserts one owned message, while channel enqueue seals its
// trailing unowned batch. Legacy tasks keep chat_input_task_id NULL and retain
// the trailing-history fallback during rolling deploys.
func (q *Queries) SetChatTaskInputOwnerSelf(ctx context.Context, id pgtype.UUID) (AgentTaskQueue, error) {
	row := q.db.QueryRow(ctx, setChatTaskInputOwnerSelf, id)
	var i AgentTaskQueue
	err := row.Scan(
		&i.ID,
		&i.AgentID,
		&i.IssueID,
		&i.Status,
		&i.Priority,
		&i.DispatchedAt,
		&i.StartedAt,
		&i.CompletedAt,
		&i.Result,
		&i.Error,
		&i.CreatedAt,
		&i.Context,
		&i.RuntimeID,
		&i.SessionID,
		&i.WorkDir,
		&i.TriggerCommentID,
		&i.ChatSessionID,
		&i.AutopilotRunID,
		&i.Attempt,
		&i.MaxAttempts,
		&i.ParentTaskID,
		&i.FailureReason,
		&i.TriggerSummary,
		&i.ForceFreshSession,
		&i.IsLeaderTask,
		&i.WaitReason,
		&i.InitiatorUserID,
		&i.HandoffNote,
		&i.PrepareLeaseExpiresAt,
		&i.SquadID,
		&i.RuntimeMcpOverlay,
		&i.EscalationForTaskID,
		&i.FireAt,
		&i.OriginatorUserID,
		&i.RuntimeConnectedApps,
		&i.CoalescedCommentIds,
		&i.DeliveredCommentIds,
		&i.ChatInputTaskID,
		&i.ChatFinalizeDeferredAt,
		&i.OriginatorSource,
		&i.DelegatedFromTaskID,
		&i.RetryOfTaskID,
		&i.RerunOfTaskID,
		&i.RuleVersionID,
		&i.TriggerEvidenceKind,
		&i.TriggerEvidenceRefID,
		&i.AccountableUserID,
		&i.SessionRolloutMissing,
		&i.RetiredSessionID,
		&i.QuickActionsDisabled,
		&i.RegenerateQuickActionsFor,
		&i.BranchName,
		&i.DurableWorkDir,
		&i.ChannelContextRevision,
		&i.CommentThreadID,
		&i.CancelledByType,
		&i.CancelledByID,
		&i.CancelledByName,
		&i.IssueSnapshot,
		&i.WorkflowStep,
	)
	return i, err
}

const taskHasChannelIngestedMessages = `-- name: TaskHasChannelIngestedMessages :one
SELECT EXISTS (
    SELECT 1 FROM chat_message
    WHERE task_id = $1
      AND role = 'user'
      AND channel_ingested
) AS channel_ingested
`

// Immutable channel provenance for a task's user-message input batch:
// channel_ingested is stamped inside the channel append transaction and never
// mutated afterwards, so it survives session archiving and installation
// rebinds that delete the channel_chat_session_binding row. Callers pass the
// batch OWNER id (chat_input_task_id, which auto-retry clones inherit), not
// necessarily the task's own id. The cancel restore-delete and the
// empty-completion silent-drop both gate on this — a channel sender has no
// Multica composer for a restored draft, and the no_response fallback body
// must never be pushed to an external channel.
func (q *Queries) TaskHasChannelIngestedMessages(ctx context.Context, taskID pgtype.UUID) (bool, error) {
	row := q.db.QueryRow(ctx, taskHasChannelIngestedMessages, taskID)
	var channel_ingested bool
	err := row.Scan(&channel_ingested)
	return channel_ingested, err
}

const taskInputIsOnboardingKickoffOnly = `-- name: TaskInputIsOnboardingKickoffOnly :one
SELECT
    EXISTS (
        SELECT 1 FROM chat_message AS kickoff
        WHERE kickoff.task_id = $1
          AND kickoff.role = 'user'
          AND kickoff.message_kind = 'onboarding_kickoff'
    )
    AND NOT EXISTS (
        SELECT 1 FROM chat_message AS typed
        WHERE typed.task_id = $1
          AND typed.role = 'user'
          AND typed.message_kind <> 'onboarding_kickoff'
    ) AS kickoff_only
`

// Whether this input batch is a kickoff and NOTHING else — the shape only a
// pre-MUL-5827 opening task has, where the kickoff was a turn of its own.
//
// Reachable exclusively during a rolling deploy: a kickoff task enqueued by the
// old server and claimed by the new one. The reply to it is still that member's
// opening, so it still has to be stamped, or their session permanently renders
// without the starter cards (the kind is persisted; nothing recomputes it).
//
// The "and nothing else" half is what makes this safe to keep: an input batch
// that pairs the kickoff with a real member message is the NEW shape, and
// stamping that turn would render the starter cards a second time under a reply
// that is not an opening.
//
// Delete this once no pre-deploy kickoff tasks can still be in flight; nothing
// creates this shape any more.
//
// $1 is the INPUT-OWNING task id — COALESCE(task.chat_input_task_id, task.id),
// i.e. chatInputOwnerID — never a retry clone's own id, since the whole retry
// chain consumes the root's input batch (MUL-4351).
func (q *Queries) TaskInputIsOnboardingKickoffOnly(ctx context.Context, taskID pgtype.UUID) (pgtype.Bool, error) {
	row := q.db.QueryRow(ctx, taskInputIsOnboardingKickoffOnly, taskID)
	var kickoff_only pgtype.Bool
	err := row.Scan(&kickoff_only)
	return kickoff_only, err
}

const touchChatSession = `-- name: TouchChatSession :exec
UPDATE chat_session SET updated_at = now()
WHERE id = $1
`

func (q *Queries) TouchChatSession(ctx context.Context, id pgtype.UUID) error {
	_, err := q.db.Exec(ctx, touchChatSession, id)
	return err
}

const updateChatMessageContentForChannelMedia = `-- name: UpdateChatMessageContentForChannelMedia :execrows
UPDATE chat_message
SET content = $1
WHERE id = $2
  AND chat_session_id = $3
  AND role = 'user'
  AND channel_ingested
`

type UpdateChatMessageContentForChannelMediaParams struct {
	Content       string      `json:"content"`
	ID            pgtype.UUID `json:"id"`
	ChatSessionID pgtype.UUID `json:"chat_session_id"`
}

// Channel messages are immutable user turns. Media resolution may finish after
// the initial append, so materialize stable inline attachment references in the
// same transaction that binds those attachments. The provenance and role guards
// prevent this narrow post-append path from rewriting ordinary web/agent rows.
func (q *Queries) UpdateChatMessageContentForChannelMedia(ctx context.Context, arg UpdateChatMessageContentForChannelMediaParams) (int64, error) {
	result, err := q.db.Exec(ctx, updateChatMessageContentForChannelMedia, arg.Content, arg.ID, arg.ChatSessionID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const updateChatSessionProject = `-- name: UpdateChatSessionProject :one
UPDATE chat_session
SET project_id = $1
WHERE id = $2 AND workspace_id = $3
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type UpdateChatSessionProjectParams struct {
	ProjectID   pgtype.UUID `json:"project_id"`
	ID          pgtype.UUID `json:"id"`
	WorkspaceID pgtype.UUID `json:"workspace_id"`
}

// Project context is user-editable session metadata. Do not touch updated_at:
// changing context is not conversation activity and must not reorder history.
func (q *Queries) UpdateChatSessionProject(ctx context.Context, arg UpdateChatSessionProjectParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, updateChatSessionProject, arg.ProjectID, arg.ID, arg.WorkspaceID)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const updateChatSessionSession = `-- name: UpdateChatSessionSession :exec
UPDATE chat_session
SET session_id = COALESCE($1, session_id),
    work_dir = COALESCE($2, work_dir),
    runtime_id = COALESCE($3, runtime_id),
    updated_at = now()
WHERE id = $4
`

type UpdateChatSessionSessionParams struct {
	SessionID pgtype.Text `json:"session_id"`
	WorkDir   pgtype.Text `json:"work_dir"`
	RuntimeID pgtype.UUID `json:"runtime_id"`
	ID        pgtype.UUID `json:"id"`
}

// Updates the resume pointer for a chat session. Empty/NULL inputs are
// ignored via COALESCE so a task that completes without a session_id (e.g.
// the agent crashed before establishing one) cannot wipe out a previously
// recorded resume pointer. This makes the chat memory robust against
// intermittent agent failures.
func (q *Queries) UpdateChatSessionSession(ctx context.Context, arg UpdateChatSessionSessionParams) error {
	_, err := q.db.Exec(ctx, updateChatSessionSession,
		arg.SessionID,
		arg.WorkDir,
		arg.RuntimeID,
		arg.ID,
	)
	return err
}

const updateChatSessionTitle = `-- name: UpdateChatSessionTitle :one
UPDATE chat_session SET title = $2, updated_at = now()
WHERE id = $1
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type UpdateChatSessionTitleParams struct {
	ID    pgtype.UUID `json:"id"`
	Title string      `json:"title"`
}

func (q *Queries) UpdateChatSessionTitle(ctx context.Context, arg UpdateChatSessionTitleParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, updateChatSessionTitle, arg.ID, arg.Title)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}

const updateChatSessionTitleIfCurrent = `-- name: UpdateChatSessionTitleIfCurrent :one
UPDATE chat_session SET title = $1, updated_at = now()
WHERE id = $2 AND title = $3
RETURNING id, workspace_id, agent_id, creator_id, title, session_id, work_dir, status, created_at, updated_at, unread_since, runtime_id, last_read_at, is_agent_intro, pinned_at, project_id, explicitly_created_at
`

type UpdateChatSessionTitleIfCurrentParams struct {
	NewTitle      string      `json:"new_title"`
	ID            pgtype.UUID `json:"id"`
	ExpectedTitle string      `json:"expected_title"`
}

// Compare-and-swap the title: only overwrite it when it still equals the
// value the caller observed (@expected_title). This is the idempotency /
// no-clobber guard behind LLM auto-titling (MUL-4295): the async generator
// captures the session's current (default/original) title before calling the
// model, and this write lands only if a manual rename or a competing writer
// has not changed the title in the meantime. A mismatch returns pgx.ErrNoRows
// (zero rows updated), which the caller treats as "someone renamed it — leave
// it alone", NOT as an error.
func (q *Queries) UpdateChatSessionTitleIfCurrent(ctx context.Context, arg UpdateChatSessionTitleIfCurrentParams) (ChatSession, error) {
	row := q.db.QueryRow(ctx, updateChatSessionTitleIfCurrent, arg.NewTitle, arg.ID, arg.ExpectedTitle)
	var i ChatSession
	err := row.Scan(
		&i.ID,
		&i.WorkspaceID,
		&i.AgentID,
		&i.CreatorID,
		&i.Title,
		&i.SessionID,
		&i.WorkDir,
		&i.Status,
		&i.CreatedAt,
		&i.UpdatedAt,
		&i.UnreadSince,
		&i.RuntimeID,
		&i.LastReadAt,
		&i.IsAgentIntro,
		&i.PinnedAt,
		&i.ProjectID,
		&i.ExplicitlyCreatedAt,
	)
	return i, err
}