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

package dbq

import (
	"context"

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

const listDuplicateGroupMergeMembers = `-- name: ListDuplicateGroupMergeMembers :many
SELECT t.id, t.file_path, t.file_format, t.file_size, t.added_at, t.album_id,
       t.mbid, albums.mbid AS album_mbid
  FROM duplicate_group_members m
  JOIN tracks t  ON t.id = m.track_id
  JOIN albums    ON albums.id = t.album_id
 WHERE m.group_id = $1
 ORDER BY t.id
`

type ListDuplicateGroupMergeMembersRow struct {
	ID         pgtype.UUID
	FilePath   string
	FileFormat string
	FileSize   int64
	AddedAt    pgtype.Timestamptz
	AlbumID    pgtype.UUID
	Mbid       *string
	AlbumMbid  *string
}

func (q *Queries) ListDuplicateGroupMergeMembers(ctx context.Context, groupID pgtype.UUID) ([]ListDuplicateGroupMergeMembersRow, error) {
	rows, err := q.db.Query(ctx, listDuplicateGroupMergeMembers, groupID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []ListDuplicateGroupMergeMembersRow
	for rows.Next() {
		var i ListDuplicateGroupMergeMembersRow
		if err := rows.Scan(
			&i.ID,
			&i.FilePath,
			&i.FileFormat,
			&i.FileSize,
			&i.AddedAt,
			&i.AlbumID,
			&i.Mbid,
			&i.AlbumMbid,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const lockDuplicateGroupForMerge = `-- name: LockDuplicateGroupForMerge :one

SELECT id, tier, status
  FROM duplicate_groups
 WHERE id = $1
   FOR UPDATE
`

type LockDuplicateGroupForMergeRow struct {
	ID     pgtype.UUID
	Tier   string
	Status string
}

// Duplicate merge (Scribe #3911). Every statement here runs inside the one
// transaction library.MergeDuplicateGroup opens, after the removed copy's file
// is already gone. The loser's own track row is deleted last with DeleteTrack;
// what these do is move everything it carries onto the survivor first, so that
// delete's CASCADE finds nothing left to destroy.
// Locks the group for the rest of the transaction, so two merges of one group
// cannot run at once.
func (q *Queries) LockDuplicateGroupForMerge(ctx context.Context, id pgtype.UUID) (LockDuplicateGroupForMergeRow, error) {
	row := q.db.QueryRow(ctx, lockDuplicateGroupForMerge, id)
	var i LockDuplicateGroupForMergeRow
	err := row.Scan(&i.ID, &i.Tier, &i.Status)
	return i, err
}

const markDuplicateGroupMerged = `-- name: MarkDuplicateGroupMerged :execrows
UPDATE duplicate_groups
   SET status = 'merged', resolved_at = now()
 WHERE id = $1 AND status = 'pending'
`

func (q *Queries) MarkDuplicateGroupMerged(ctx context.Context, id pgtype.UUID) (int64, error) {
	result, err := q.db.Exec(ctx, markDuplicateGroupMerged, id)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeCopyGeneralLikes = `-- name: MergeCopyGeneralLikes :many

INSERT INTO general_likes (user_id, track_id, liked_at)
SELECT user_id, $1::uuid, liked_at
  FROM general_likes
 WHERE track_id = $2::uuid
ON CONFLICT (user_id, track_id) DO UPDATE
   SET liked_at = LEAST(general_likes.liked_at, EXCLUDED.liked_at)
RETURNING user_id
`

type MergeCopyGeneralLikesParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

// Collision-safe merges: a unique key includes track_id, so the survivor may
// already hold a matching row. Copy what it lacks; DeleteTrack's CASCADE then
// removes the loser's originals.
// One like per user. A user who liked both copies keeps a single like, dated to
// the earlier of the two.
func (q *Queries) MergeCopyGeneralLikes(ctx context.Context, arg MergeCopyGeneralLikesParams) ([]pgtype.UUID, error) {
	rows, err := q.db.Query(ctx, mergeCopyGeneralLikes, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []pgtype.UUID
	for rows.Next() {
		var user_id pgtype.UUID
		if err := rows.Scan(&user_id); err != nil {
			return nil, err
		}
		items = append(items, user_id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const mergeCopyTrackSimilarity = `-- name: MergeCopyTrackSimilarity :execrows
INSERT INTO track_similarity (track_a_id, track_b_id, score, source, fetched_at)
SELECT CASE WHEN track_a_id = $1::uuid THEN $2::uuid ELSE track_a_id END,
       CASE WHEN track_b_id = $1::uuid THEN $2::uuid ELSE track_b_id END,
       score, source, fetched_at
  FROM track_similarity
 WHERE (track_a_id = $1::uuid OR track_b_id = $1::uuid)
   AND (CASE WHEN track_a_id = $1::uuid THEN $2::uuid ELSE track_a_id END)
    <> (CASE WHEN track_b_id = $1::uuid THEN $2::uuid ELSE track_b_id END)
ON CONFLICT (track_a_id, track_b_id, source) DO NOTHING
`

type MergeCopyTrackSimilarityParams struct {
	LoserID    pgtype.UUID
	SurvivorID pgtype.UUID
}

// Rewrites the loser to the survivor on either side of an edge. An edge between
// the two copies would become a track similar to itself — the table forbids
// that, and it means nothing — so it is dropped. An edge the survivor already
// has from the same source is kept as it is.
func (q *Queries) MergeCopyTrackSimilarity(ctx context.Context, arg MergeCopyTrackSimilarityParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeCopyTrackSimilarity, arg.LoserID, arg.SurvivorID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeCopyTrackTags = `-- name: MergeCopyTrackTags :execrows
INSERT INTO track_tags (track_id, tag, weight)
SELECT $1::uuid, tag, weight
  FROM track_tags
 WHERE track_id = $2::uuid
ON CONFLICT (track_id, tag) DO NOTHING
`

type MergeCopyTrackTagsParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

func (q *Queries) MergeCopyTrackTags(ctx context.Context, arg MergeCopyTrackTagsParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeCopyTrackTags, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeInheritTrackMbid = `-- name: MergeInheritTrackMbid :exec
UPDATE tracks AS survivor
   SET mbid = loser.mbid
  FROM tracks AS loser
 WHERE survivor.id = $1::uuid
   AND loser.id = $2::uuid
   AND survivor.mbid IS NULL
   AND loser.mbid IS NOT NULL
`

type MergeInheritTrackMbidParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

// A recording MBID is what the similarity pipeline keys on. If only the removed
// copy carried one, the survivor takes it rather than going dark to similarity.
func (q *Queries) MergeInheritTrackMbid(ctx context.Context, arg MergeInheritTrackMbidParams) error {
	_, err := q.db.Exec(ctx, mergeInheritTrackMbid, arg.SurvivorID, arg.LoserID)
	return err
}

const mergeRepointContextualLikes = `-- name: MergeRepointContextualLikes :execrows
UPDATE contextual_likes SET track_id = $1::uuid WHERE track_id = $2::uuid
`

type MergeRepointContextualLikesParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

func (q *Queries) MergeRepointContextualLikes(ctx context.Context, arg MergeRepointContextualLikesParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeRepointContextualLikes, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeRepointLidarrRequests = `-- name: MergeRepointLidarrRequests :execrows
UPDATE lidarr_requests SET matched_track_id = $1::uuid
 WHERE matched_track_id = $2::uuid
`

type MergeRepointLidarrRequestsParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

func (q *Queries) MergeRepointLidarrRequests(ctx context.Context, arg MergeRepointLidarrRequestsParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeRepointLidarrRequests, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeRepointPlayEvents = `-- name: MergeRepointPlayEvents :execrows

UPDATE play_events SET track_id = $1::uuid WHERE track_id = $2::uuid
`

type MergeRepointPlayEventsParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

// Plain repoints: no unique key involves track_id, so moving rows cannot collide.
func (q *Queries) MergeRepointPlayEvents(ctx context.Context, arg MergeRepointPlayEventsParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeRepointPlayEvents, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeRepointPlaybackErrors = `-- name: MergeRepointPlaybackErrors :execrows
UPDATE playback_errors SET track_id = $1::uuid WHERE track_id = $2::uuid
`

type MergeRepointPlaybackErrorsParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

func (q *Queries) MergeRepointPlaybackErrors(ctx context.Context, arg MergeRepointPlaybackErrorsParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeRepointPlaybackErrors, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}

const mergeRepointPlaylistTracks = `-- name: MergeRepointPlaylistTracks :many
UPDATE playlist_tracks SET track_id = $1::uuid
 WHERE track_id = $2::uuid
RETURNING playlist_id
`

type MergeRepointPlaylistTracksParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

// playlist_tracks is keyed by (playlist_id, position), so repointing keeps every
// entry exactly where it was. A playlist that held both copies simply holds the
// survivor twice — the user put two entries there, and both stay.
func (q *Queries) MergeRepointPlaylistTracks(ctx context.Context, arg MergeRepointPlaylistTracksParams) ([]pgtype.UUID, error) {
	rows, err := q.db.Query(ctx, mergeRepointPlaylistTracks, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []pgtype.UUID
	for rows.Next() {
		var playlist_id pgtype.UUID
		if err := rows.Scan(&playlist_id); err != nil {
			return nil, err
		}
		items = append(items, playlist_id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const mergeRepointSkipEvents = `-- name: MergeRepointSkipEvents :execrows
UPDATE skip_events SET track_id = $1::uuid WHERE track_id = $2::uuid
`

type MergeRepointSkipEventsParams struct {
	SurvivorID pgtype.UUID
	LoserID    pgtype.UUID
}

func (q *Queries) MergeRepointSkipEvents(ctx context.Context, arg MergeRepointSkipEventsParams) (int64, error) {
	result, err := q.db.Exec(ctx, mergeRepointSkipEvents, arg.SurvivorID, arg.LoserID)
	if err != nil {
		return 0, err
	}
	return result.RowsAffected(), nil
}