|
| 1 | +package db |
| 2 | + |
| 3 | +import ( |
| 4 | + "github.com/OpenListTeam/OpenList/v4/internal/model" |
| 5 | + "gorm.io/gorm" |
| 6 | +) |
| 7 | + |
| 8 | +// ==================== MediaConfig ==================== |
| 9 | + |
| 10 | +// GetMediaConfig 获取指定类型的媒体库配置，不存在则返回默认值 |
| 11 | +func GetMediaConfig(mediaType model.MediaType) (*model.MediaConfig, error) { |
| 12 | + var cfg model.MediaConfig |
| 13 | + result := db.Where("media_type = ?", mediaType).First(&cfg) |
| 14 | + if result.Error == gorm.ErrRecordNotFound { |
| 15 | + // 返回默认配置 |
| 16 | + return &model.MediaConfig{ |
| 17 | + MediaType: mediaType, |
| 18 | + Enabled: false, |
| 19 | + ScanPath: "/", |
| 20 | + PathMerge: false, |
| 21 | + }, nil |
| 22 | + } |
| 23 | + return &cfg, result.Error |
| 24 | +} |
| 25 | + |
| 26 | +// GetAllMediaConfigs 获取所有媒体库配置 |
| 27 | +func GetAllMediaConfigs() ([]model.MediaConfig, error) { |
| 28 | + var cfgs []model.MediaConfig |
| 29 | + err := db.Find(&cfgs).Error |
| 30 | + return cfgs, err |
| 31 | +} |
| 32 | + |
| 33 | +// SaveMediaConfig 保存媒体库配置（upsert） |
| 34 | +func SaveMediaConfig(cfg *model.MediaConfig) error { |
| 35 | + var existing model.MediaConfig |
| 36 | + result := db.Where("media_type = ?", cfg.MediaType).First(&existing) |
| 37 | + if result.Error == gorm.ErrRecordNotFound { |
| 38 | + return db.Create(cfg).Error |
| 39 | + } |
| 40 | + cfg.ID = existing.ID |
| 41 | + return db.Save(cfg).Error |
| 42 | +} |
| 43 | + |
| 44 | +// ==================== MediaItem ==================== |
| 45 | + |
| 46 | +// MediaItemQuery 媒体条目查询参数 |
| 47 | +type MediaItemQuery struct { |
| 48 | + MediaType model.MediaType |
| 49 | + FolderPath string |
| 50 | + Hidden *bool |
| 51 | + Keyword string |
| 52 | + OrderBy string // "name", "date", "size" |
| 53 | + OrderDir string // "asc", "desc" |
| 54 | + Page int |
| 55 | + PageSize int |
| 56 | +} |
| 57 | + |
| 58 | +// ListMediaItems 分页查询媒体条目 |
| 59 | +func ListMediaItems(q MediaItemQuery) ([]model.MediaItem, int64, error) { |
| 60 | + tx := db.Model(&model.MediaItem{}) |
| 61 | + if q.MediaType != "" { |
| 62 | + tx = tx.Where("media_type = ?", q.MediaType) |
| 63 | + } |
| 64 | + if q.FolderPath != "" { |
| 65 | + tx = tx.Where("folder_path = ?", q.FolderPath) |
| 66 | + } |
| 67 | + if q.Hidden != nil { |
| 68 | + tx = tx.Where("hidden = ?", *q.Hidden) |
| 69 | + } |
| 70 | + if q.Keyword != "" { |
| 71 | + like := "%" + q.Keyword + "%" |
| 72 | + tx = tx.Where("file_name LIKE ? OR scraped_name LIKE ?", like, like) |
| 73 | + } |
| 74 | + |
| 75 | + var total int64 |
| 76 | + if err := tx.Count(&total).Error; err != nil { |
| 77 | + return nil, 0, err |
| 78 | + } |
| 79 | + |
| 80 | + // 排序 |
| 81 | + orderCol := "created_at" |
| 82 | + switch q.OrderBy { |
| 83 | + case "name": |
| 84 | + orderCol = "COALESCE(NULLIF(scraped_name,''), file_name)" |
| 85 | + case "date": |
| 86 | + orderCol = "release_date" |
| 87 | + case "size": |
| 88 | + orderCol = "file_size" |
| 89 | + } |
| 90 | + dir := "asc" |
| 91 | + if q.OrderDir == "desc" { |
| 92 | + dir = "desc" |
| 93 | + } |
| 94 | + tx = tx.Order(orderCol + " " + dir) |
| 95 | + |
| 96 | + // 分页 |
| 97 | + if q.PageSize <= 0 { |
| 98 | + q.PageSize = 20 |
| 99 | + } |
| 100 | + if q.Page <= 0 { |
| 101 | + q.Page = 1 |
| 102 | + } |
| 103 | + tx = tx.Offset((q.Page - 1) * q.PageSize).Limit(q.PageSize) |
| 104 | + |
| 105 | + var items []model.MediaItem |
| 106 | + err := tx.Find(&items).Error |
| 107 | + return items, total, err |
| 108 | +} |
| 109 | + |
| 110 | +// GetMediaItemByID 按ID获取媒体条目 |
| 111 | +func GetMediaItemByID(id uint) (*model.MediaItem, error) { |
| 112 | + var item model.MediaItem |
| 113 | + err := db.First(&item, id).Error |
| 114 | + return &item, err |
| 115 | +} |
| 116 | + |
| 117 | +// GetMediaItemByPath 按文件路径获取媒体条目 |
| 118 | +func GetMediaItemByPath(filePath string) (*model.MediaItem, error) { |
| 119 | + var item model.MediaItem |
| 120 | + result := db.Where("file_path = ?", filePath).First(&item) |
| 121 | + return &item, result.Error |
| 122 | +} |
| 123 | + |
| 124 | +// CreateOrUpdateMediaItem 创建或更新媒体条目（按 file_path 唯一） |
| 125 | +// 更新时保留已有的刮削数据，避免重新扫描时把已刮削的字段清空 |
| 126 | +func CreateOrUpdateMediaItem(item *model.MediaItem) error { |
| 127 | + var existing model.MediaItem |
| 128 | + result := db.Where("file_path = ?", item.FilePath).First(&existing) |
| 129 | + if result.Error == gorm.ErrRecordNotFound { |
| 130 | + return db.Create(item).Error |
| 131 | + } |
| 132 | + if result.Error != nil { |
| 133 | + return result.Error |
| 134 | + } |
| 135 | + item.ID = existing.ID |
| 136 | + item.CreatedAt = existing.CreatedAt |
| 137 | + // 如果已有刮削数据，保留刮削字段，防止重新扫描时覆盖刮削结果 |
| 138 | + if existing.ScrapedAt != nil { |
| 139 | + item.ScrapedAt = existing.ScrapedAt |
| 140 | + item.ScrapedName = existing.ScrapedName |
| 141 | + item.Cover = existing.Cover |
| 142 | + item.AlbumName = existing.AlbumName |
| 143 | + item.AlbumArtist = existing.AlbumArtist |
| 144 | + item.TrackNumber = existing.TrackNumber |
| 145 | + item.Duration = existing.Duration |
| 146 | + item.Genre = existing.Genre |
| 147 | + item.ReleaseDate = existing.ReleaseDate |
| 148 | + item.Rating = existing.Rating |
| 149 | + item.Plot = existing.Plot |
| 150 | + item.Authors = existing.Authors |
| 151 | + item.Description = existing.Description |
| 152 | + item.Publisher = existing.Publisher |
| 153 | + item.ISBN = existing.ISBN |
| 154 | + item.ExternalID = existing.ExternalID |
| 155 | + } |
| 156 | + return db.Save(item).Error |
| 157 | +} |
| 158 | + |
| 159 | +// UpdateMediaItem 更新媒体条目（仅更新可编辑字段） |
| 160 | +func UpdateMediaItem(item *model.MediaItem) error { |
| 161 | + return db.Save(item).Error |
| 162 | +} |
| 163 | + |
| 164 | +// DeleteMediaItem 硬删除媒体条目（真正从数据库删除） |
| 165 | +func DeleteMediaItem(id uint) error { |
| 166 | + return db.Unscoped().Delete(&model.MediaItem{}, id).Error |
| 167 | +} |
| 168 | + |
| 169 | +// ClearMediaItems 硬删除指定类型的所有媒体条目（真正从数据库删除） |
| 170 | +func ClearMediaItems(mediaType model.MediaType) error { |
| 171 | + return db.Unscoped().Where("media_type = ?", mediaType).Delete(&model.MediaItem{}).Error |
| 172 | +} |
| 173 | + |
| 174 | +// ListAlbums 列出所有专辑（音乐专用） |
| 175 | +func ListAlbums(q MediaItemQuery) ([]AlbumInfo, int64, error) { |
| 176 | + type albumRow struct { |
| 177 | + AlbumName string |
| 178 | + AlbumArtist string |
| 179 | + Cover string |
| 180 | + ReleaseDate string |
| 181 | + TrackCount int |
| 182 | + } |
| 183 | + |
| 184 | + // 构建基础查询 |
| 185 | + baseQuery := db.Model(&model.MediaItem{}). |
| 186 | + Where("media_type = ?", model.MediaTypeMusic) |
| 187 | + if q.Hidden != nil { |
| 188 | + baseQuery = baseQuery.Where("hidden = ?", *q.Hidden) |
| 189 | + } |
| 190 | + if q.Keyword != "" { |
| 191 | + like := "%" + q.Keyword + "%" |
| 192 | + baseQuery = baseQuery.Where("album_name LIKE ? OR album_artist LIKE ?", like, like) |
| 193 | + } |
| 194 | + |
| 195 | + // 统计分组数（用子查询） |
| 196 | + var total int64 |
| 197 | + if err := db.Table("(?) as sub", baseQuery. |
| 198 | + Select("album_name, album_artist"). |
| 199 | + Group("album_name, album_artist")). |
| 200 | + Count(&total).Error; err != nil { |
| 201 | + return nil, 0, err |
| 202 | + } |
| 203 | + |
| 204 | + if q.PageSize <= 0 { |
| 205 | + q.PageSize = 20 |
| 206 | + } |
| 207 | + if q.Page <= 0 { |
| 208 | + q.Page = 1 |
| 209 | + } |
| 210 | + |
| 211 | + tx := baseQuery. |
| 212 | + Select("album_name, album_artist, MAX(cover) as cover, MAX(release_date) as release_date, COUNT(*) as track_count"). |
| 213 | + Group("album_name, album_artist"). |
| 214 | + Offset((q.Page - 1) * q.PageSize).Limit(q.PageSize) |
| 215 | + |
| 216 | + var rows []albumRow |
| 217 | + if err := tx.Scan(&rows).Error; err != nil { |
| 218 | + return nil, 0, err |
| 219 | + } |
| 220 | + |
| 221 | + albums := make([]AlbumInfo, len(rows)) |
| 222 | + for i, r := range rows { |
| 223 | + albums[i] = AlbumInfo{ |
| 224 | + AlbumName: r.AlbumName, |
| 225 | + AlbumArtist: r.AlbumArtist, |
| 226 | + Cover: r.Cover, |
| 227 | + ReleaseDate: r.ReleaseDate, |
| 228 | + TrackCount: r.TrackCount, |
| 229 | + } |
| 230 | + } |
| 231 | + return albums, total, nil |
| 232 | +} |
| 233 | + |
| 234 | +// AlbumInfo 专辑信息 |
| 235 | +type AlbumInfo struct { |
| 236 | + AlbumName string `json:"album_name"` |
| 237 | + AlbumArtist string `json:"album_artist"` |
| 238 | + Cover string `json:"cover"` |
| 239 | + ReleaseDate string `json:"release_date"` |
| 240 | + TrackCount int `json:"track_count"` |
| 241 | +} |
| 242 | + |
| 243 | +// GetAlbumTracks 获取专辑曲目列表 |
| 244 | +func GetAlbumTracks(albumName, albumArtist string) ([]model.MediaItem, error) { |
| 245 | + var items []model.MediaItem |
| 246 | + tx := db.Where("media_type = ?", model.MediaTypeMusic) |
| 247 | + if albumName != "" { |
| 248 | + tx = tx.Where("album_name = ?", albumName) |
| 249 | + } else { |
| 250 | + // album_name 为空时，查询该艺术家下所有无专辑名的曲目 |
| 251 | + tx = tx.Where("(album_name = '' OR album_name IS NULL)") |
| 252 | + } |
| 253 | + if albumArtist != "" { |
| 254 | + tx = tx.Where("album_artist = ?", albumArtist) |
| 255 | + } |
| 256 | + err := tx.Order("track_number asc").Find(&items).Error |
| 257 | + return items, err |
| 258 | +} |
| 259 | + |
| 260 | +// ListFolderPaths 列出指定媒体类型下的所有文件夹路径（目录浏览模式） |
| 261 | +func ListFolderPaths(mediaType model.MediaType) ([]string, error) { |
| 262 | + var paths []string |
| 263 | + err := db.Model(&model.MediaItem{}). |
| 264 | + Where("media_type = ?", mediaType). |
| 265 | + Distinct("folder_path"). |
| 266 | + Pluck("folder_path", &paths).Error |
| 267 | + return paths, err |
| 268 | +} |
| 269 | + |
| 270 | +// GetUnscrappedItems 获取未刮削或刮削不完整的媒体条目 |
| 271 | +// 只要 scraped_at 为空，或 cover/scraped_name/description 任一为空，就需要重新刮削 |
| 272 | +func GetUnscrappedItems(mediaType model.MediaType, limit int) ([]model.MediaItem, error) { |
| 273 | + var items []model.MediaItem |
| 274 | + err := db.Where( |
| 275 | + "media_type = ? AND (scraped_at IS NULL OR cover = '' OR cover IS NULL OR scraped_name = '' OR scraped_name IS NULL OR description = '' OR description IS NULL)", |
| 276 | + mediaType, |
| 277 | + ). |
| 278 | + Limit(limit). |
| 279 | + Find(&items).Error |
| 280 | + return items, err |
| 281 | +} |
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