bvandeusen
7cfaafd360
Closes the last deferred follow-up from #357. The library_changes table is the append-only change log that drives /api/library/sync's delta semantics — every mutation (scanner upsert, like, playlist edit, track delete) writes one row. Without a retention policy the table grows unbounded; the original migration (0025) called out the follow-up explicitly. New goroutine: sync.Compactor runs daily, deletes rows where changed_at < now - 30 days. Logs a row count when non-zero so operators can see compaction activity in the journal. First tick fires on startup so a process that hasn't been compacted in a while catches up immediately. 30-day retention matches the offline-mode spec (docs/superpowers/specs/2026-05-09-flutter-offline-mode-design.md). Clients with a cursor older than that hit the existing 410 fallback path and resync from scratch. Imported as syncpkg in main.go to follow the existing convention (see internal/library/scanner.go). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
105 lines
2.6 KiB
Go
105 lines
2.6 KiB
Go
// Code generated by sqlc. DO NOT EDIT.
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// versions:
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// sqlc v1.31.1
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// source: library_changes.sql
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package dbq
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import (
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"context"
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"github.com/jackc/pgx/v5/pgtype"
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)
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const deleteOldLibraryChanges = `-- name: DeleteOldLibraryChanges :execrows
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DELETE FROM library_changes WHERE changed_at < $1
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`
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// Removes library_changes rows older than the given cutoff. Run from
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// the sync compactor goroutine on a daily tick. Returns the number of
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// rows deleted so the worker can log meaningful progress.
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func (q *Queries) DeleteOldLibraryChanges(ctx context.Context, changedAt pgtype.Timestamptz) (int64, error) {
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result, err := q.db.Exec(ctx, deleteOldLibraryChanges, changedAt)
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if err != nil {
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return 0, err
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}
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return result.RowsAffected(), nil
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}
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const getLibraryChangesSince = `-- name: GetLibraryChangesSince :many
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SELECT id, entity_type, entity_id, op, changed_at
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FROM library_changes
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WHERE id > $1
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ORDER BY id ASC
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LIMIT $2
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`
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type GetLibraryChangesSinceParams struct {
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ID int64
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Limit int32
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}
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func (q *Queries) GetLibraryChangesSince(ctx context.Context, arg GetLibraryChangesSinceParams) ([]LibraryChange, error) {
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rows, err := q.db.Query(ctx, getLibraryChangesSince, arg.ID, arg.Limit)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var items []LibraryChange
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for rows.Next() {
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var i LibraryChange
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if err := rows.Scan(
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&i.ID,
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&i.EntityType,
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&i.EntityID,
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&i.Op,
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&i.ChangedAt,
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); err != nil {
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return nil, err
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}
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items = append(items, i)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return items, nil
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}
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const getMaxLibraryChangeCursor = `-- name: GetMaxLibraryChangeCursor :one
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SELECT COALESCE(MAX(id), 0)::BIGINT FROM library_changes
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`
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func (q *Queries) GetMaxLibraryChangeCursor(ctx context.Context) (int64, error) {
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row := q.db.QueryRow(ctx, getMaxLibraryChangeCursor)
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var column_1 int64
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err := row.Scan(&column_1)
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return column_1, err
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}
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const getMinLibraryChangeCursor = `-- name: GetMinLibraryChangeCursor :one
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SELECT COALESCE(MIN(id), 0)::BIGINT FROM library_changes
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`
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func (q *Queries) GetMinLibraryChangeCursor(ctx context.Context) (int64, error) {
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row := q.db.QueryRow(ctx, getMinLibraryChangeCursor)
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var column_1 int64
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err := row.Scan(&column_1)
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return column_1, err
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}
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const insertLibraryChange = `-- name: InsertLibraryChange :exec
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INSERT INTO library_changes (entity_type, entity_id, op)
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VALUES ($1, $2, $3)
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`
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type InsertLibraryChangeParams struct {
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EntityType string
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EntityID string
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Op string
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}
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func (q *Queries) InsertLibraryChange(ctx context.Context, arg InsertLibraryChangeParams) error {
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_, err := q.db.Exec(ctx, insertLibraryChange, arg.EntityType, arg.EntityID, arg.Op)
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return err
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}
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