89 lines
3.2 KiB
Go
89 lines
3.2 KiB
Go
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package userdb
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import (
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"database/sql"
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"fmt"
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"time"
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"github.com/Silo-Server/silo-server/internal/jellycompat/displayprefs"
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)
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// moveJellycompatDisplayPrefs is the one-time move of Jellyfin
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// DisplayPreferences blobs out of user_settings and into the dedicated
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// jellycompat_displayprefs table. Both tables exist by the time this runs:
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// InitSchema creates them with IF NOT EXISTS on every open, before migrations.
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//
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// The key-parsing and classification rules live in
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// internal/jellycompat/displayprefs so this backend and Postgres cannot
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// disagree about them; everything here is reading rows, handing them over, and
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// writing what comes back. Values are copied byte-for-byte — the blobs are
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// opaque Jellyfin client JSON and reinterpreting them is not this migration's
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// business.
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//
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// It runs inside the caller's transaction, so the store comes out fully moved
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// or untouched. Re-running is harmless: the first run deletes every
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// jellycompat:* source row, so a second pass finds nothing, and ON CONFLICT DO
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// NOTHING keeps even a mixed state (a backup restored over a migrated
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// database) from failing or clobbering the already-moved value.
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//
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// A jellycompat:* row that does not parse as a DisplayPreferences key could
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// only have been written through the legacy settings API's unknown-key
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// carve-out, which this cutover removes. Those rows are recorded in
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// user_setting_migration_rejects for operator inspection rather than silently
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// deleted.
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func moveJellycompatDisplayPrefs(tx *sql.Tx) error {
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type legacyRow struct{ key, value string }
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var legacy []legacyRow
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rows, err := tx.Query(
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`SELECT key, value FROM user_settings WHERE key LIKE ?`,
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displayprefs.LegacyKeyPattern(),
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)
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if err != nil {
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return fmt.Errorf("reading jellycompat rows from user_settings: %w", err)
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}
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defer rows.Close() //nolint:errcheck // read-only iteration
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for rows.Next() {
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var row legacyRow
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if err := rows.Scan(&row.key, &row.value); err != nil {
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return fmt.Errorf("scanning jellycompat row: %w", err)
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}
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legacy = append(legacy, row)
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}
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if err := rows.Err(); err != nil {
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return fmt.Errorf("iterating jellycompat rows: %w", err)
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}
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now := time.Now().UTC().Format(time.RFC3339Nano)
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for _, row := range legacy {
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blob, reject := displayprefs.PlanLegacyRow(row.key, row.value)
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if blob != nil {
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if _, err := tx.Exec(`
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INSERT INTO jellycompat_displayprefs (prefs_id, client, value, updated_at)
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VALUES (?, ?, ?, ?)
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ON CONFLICT(prefs_id, client) DO NOTHING`,
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blob.PrefsID, blob.Client, blob.Value, now,
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); err != nil {
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return fmt.Errorf("moving display prefs %q: %w", row.key, err)
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}
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continue
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}
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if _, err := tx.Exec(`
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INSERT INTO user_setting_migration_rejects
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(source_table, source_key, identity, value, reason, recorded_at)
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VALUES ('user_settings', ?, '{"scope":"account"}', ?, ?, ?)`,
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reject.Key, reject.Value, reject.Reason, now,
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); err != nil {
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return fmt.Errorf("recording displayprefs reject for %q: %w", reject.Key, err)
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}
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}
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if _, err := tx.Exec(
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`DELETE FROM user_settings WHERE key LIKE ?`,
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displayprefs.LegacyKeyPattern(),
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); err != nil {
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return fmt.Errorf("deleting jellycompat rows from user_settings: %w", err)
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}
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return nil
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}
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