Files

79 lines
2.7 KiB
Go

package main
import (
"fmt"
"os"
"path/filepath"
"gorm.io/gorm"
)
// migrateDatabase applies schema changes and repairs legacy indexes. It is
// intentionally separate from startup so migration behavior can be tested on
// a disposable SQLite database before touching production data.
func migrateDatabase(db *gorm.DB) error {
if err := db.AutoMigrate(&Task{}, &MediaAsset{}, &Setting{}, &User{}, &UserPermission{}, &CreditAccount{}, &CreditTransaction{}, &CreditReservation{}, &RedeemBatch{}, &RedeemCode{}, &RedeemRecord{}, &WebDAVConfig{}, &Session{}, &AuditLog{}); err != nil {
return err
}
if err := db.Exec("DROP INDEX IF EXISTS idx_tasks_source_rid_quality").Error; err != nil {
return err
}
if err := db.Exec("CREATE UNIQUE INDEX IF NOT EXISTS idx_tasks_user_source_rid_quality ON tasks(user_id, source, r_id, quality)").Error; err != nil {
return err
}
if err := db.Exec("DROP INDEX IF EXISTS idx_credit_reservations_task_id").Error; err != nil {
return err
}
return db.Exec("CREATE INDEX IF NOT EXISTS idx_credit_reservations_task_id ON credit_reservations(task_id)").Error
}
// backfillMediaAssets turns legacy completed tasks into shared media assets.
// Existing physical files are reused; no media is moved or deleted.
func backfillMediaAssets(db *gorm.DB, downloadDir string) error {
var tasks []Task
if err := db.Where("(asset_id = 0 OR asset_id IS NULL) AND status = ?", "done").Find(&tasks).Error; err != nil {
return err
}
for i := range tasks {
t := &tasks[i]
key := assetKey(t.Source, t.RID, t.Quality)
var asset MediaAsset
result := db.Where("asset_key = ?", key).Limit(1).Find(&asset)
if result.Error != nil {
return result.Error
}
if result.RowsAffected == 0 {
asset = MediaAsset{
AssetKey: key,
Source: t.Source,
RID: t.RID,
Quality: t.Quality,
LocalPath: t.LocalPath,
Format: t.Format,
ActualQuality: t.ActualQuality,
Size: t.DownloadedBytes,
Status: "done",
}
if asset.LocalPath != "" {
if fi, statErr := os.Stat(asset.LocalPath); statErr == nil && fi.Size() > 0 {
asset.Size = fi.Size()
}
} else if downloadDir != "" {
candidate := filepath.Join(downloadDir, safe(t.Artist)+" - "+safe(t.Title)+"."+t.Format)
if fi, statErr := os.Stat(candidate); statErr == nil && fi.Size() > 0 {
asset.LocalPath, asset.Size = candidate, fi.Size()
}
}
if err := db.Create(&asset).Error; err != nil {
return fmt.Errorf("create media asset for task %d: %w", t.ID, err)
}
}
if t.AssetID != asset.ID {
if err := db.Model(t).Update("asset_id", asset.ID).Error; err != nil {
return fmt.Errorf("link media asset for task %d: %w", t.ID, err)
}
}
}
return nil
}