refactor: inject data fix dependencies

internal/database/fixes/20260526_episode_availability_backfill_next_refresh_at.go

@@ -9,7 +9,7 @@ import (
 func init() {
 	Register(Fix{
 		ID: "20260526_episode_availability_backfill_next_refresh_at",
-		Apply: func(ctx context.Context, sqlDB *sql.DB) error {
+		Apply: func(ctx context.Context, sqlDB *sql.DB, _ Dependencies) error {
 			// Old caches could have next_refresh_at NULL (especially for airing shows with missing broadcast metadata),
 			// which can result in "never refresh again" behavior on the server.
 			_, err := sqlDB.ExecContext(ctx, `

internal/database/fixes/20260528_backfill_avatar_url.go

@@ -4,14 +4,17 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
-	"mal/internal"
 	errlog "mal/pkg"
 )
 
 func init() {
 	Register(Fix{
 		ID: "20260528_backfill_avatar_url",
-		Apply: func(ctx context.Context, sqlDB *sql.DB) error {
+		Apply: func(ctx context.Context, sqlDB *sql.DB, deps Dependencies) error {
+			if deps.DefaultAvatarURL == nil {
+				return fmt.Errorf("default avatar URL dependency is required")
+			}
+
 			rows, err := sqlDB.QueryContext(ctx, `SELECT id, username FROM user WHERE avatar_url = ''`)
 			if err != nil {
 				return fmt.Errorf("query users missing avatar_url: %w", err)
@@ -35,7 +38,7 @@ func init() {
 			}
 
 			for _, u := range toUpdate {
-				avatarURL := internal.DefaultAvatarURL(u.username)
+				avatarURL := deps.DefaultAvatarURL(u.username)
 				if _, err := sqlDB.ExecContext(ctx, `UPDATE user SET avatar_url = ? WHERE id = ?`, avatarURL, u.id); err != nil {
 					return fmt.Errorf("update avatar_url for user %s: %w", u.id, err)
 				}

internal/database/fixes/20260608_backfill_anime_duration_seconds.go

@@ -18,8 +18,10 @@ type animeDurationRow struct {
 
 func init() {
 	Register(Fix{
-		ID:    "20260608_backfill_anime_duration_seconds",
-		Apply: applyAnimeDurationSecondsBackfill,
+		ID: "20260608_backfill_anime_duration_seconds",
+		Apply: func(ctx context.Context, sqlDB *sql.DB, _ Dependencies) error {
+			return applyAnimeDurationSecondsBackfill(ctx, sqlDB)
+		},
 	})
 }
 

internal/database/fixes/registry.go

@@ -9,7 +9,11 @@ import (
 
 type Fix struct {
 	ID    string
-	Apply func(ctx context.Context, sqlDB *sql.DB) error
+	Apply func(ctx context.Context, sqlDB *sql.DB, deps Dependencies) error
+}
+
+type Dependencies struct {
+	DefaultAvatarURL func(username string) string
 }
 
 var registered []Fix