support multiple roots per library

internal/database/schema_migration.go

@@ -1,6 +1,9 @@
 package database
 
 import (
+	"path/filepath"
+	"strings"
+
 	"gorm.io/gorm"
 
 	"github.com/ShukeBta/MediaStationGo/internal/model"
@@ -20,6 +23,9 @@ func AutoMigrate(db *gorm.DB) error {
 	if err := ensurePerformanceIndexes(db); err != nil {
 		return err
 	}
+	if err := ensureLibraryRootsCompatibility(db); err != nil {
+		return err
+	}
 	if isSQLite(db) {
 		return ensureMediaSearchIndex(db)
 	}
@@ -52,6 +58,7 @@ func ensurePerformanceIndexes(db *gorm.DB) error {
 	statements := []string{
 		`CREATE INDEX IF NOT EXISTS idx_media_library_created_active ON media(library_id, created_at DESC) WHERE deleted_at IS NULL`,
 		`CREATE INDEX IF NOT EXISTS idx_media_library_episode_active ON media(library_id, season_num, episode_num, created_at DESC) WHERE deleted_at IS NULL`,
+		`CREATE INDEX IF NOT EXISTS idx_media_library_root_active ON media(library_id, library_root_id) WHERE deleted_at IS NULL`,
 		`CREATE INDEX IF NOT EXISTS idx_media_series_active ON media(series_id, season_num, episode_num) WHERE deleted_at IS NULL`,
 		`CREATE INDEX IF NOT EXISTS idx_favorites_user_media_active ON favorites(user_id, media_id) WHERE deleted_at IS NULL`,
 		`CREATE INDEX IF NOT EXISTS idx_playback_histories_user_media_active ON playback_histories(user_id, media_id, watched_at DESC) WHERE deleted_at IS NULL`,
@@ -77,6 +84,107 @@ func ensurePerformanceIndexes(db *gorm.DB) error {
 	return nil
 }
 
+func ensureLibraryRootsCompatibility(db *gorm.DB) error {
+	var libraries []model.Library
+	if err := db.Find(&libraries).Error; err != nil {
+		return err
+	}
+	for _, lib := range libraries {
+		if strings.TrimSpace(lib.Path) == "" {
+			continue
+		}
+		var count int64
+		if err := db.Model(&model.LibraryRoot{}).Where("library_id = ?", lib.ID).Count(&count).Error; err != nil {
+			return err
+		}
+		if count > 0 {
+			continue
+		}
+		root := model.LibraryRoot{
+			LibraryID: lib.ID,
+			Name:      firstLibraryRootLabel(lib.Path),
+			Path:      lib.Path,
+			Enabled:   lib.Enabled,
+			SortOrder: 0,
+		}
+		if err := db.Create(&root).Error; err != nil {
+			return err
+		}
+		if err := backfillLibraryRootMedia(db, lib, root); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func backfillLibraryRootMedia(db *gorm.DB, lib model.Library, root model.LibraryRoot) error {
+	var rows []model.Media
+	if err := db.Unscoped().
+		Model(&model.Media{}).
+		Select("id", "path").
+		Where("library_id = ? AND (library_root_id = '' OR library_root_id IS NULL)", lib.ID).
+		Find(&rows).Error; err != nil {
+		return err
+	}
+	rootPath := strings.TrimSpace(root.Path)
+	for _, row := range rows {
+		rel, ok := relativePathWithinRoot(row.Path, rootPath)
+		if !ok {
+			continue
+		}
+		if err := db.Unscoped().Model(&model.Media{}).Where("id = ?", row.ID).Updates(map[string]any{
+			"library_root_id": root.ID,
+			"relative_path":   rel,
+		}).Error; err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func relativePathWithinRoot(pathValue, root string) (string, bool) {
+	pathValue = strings.TrimSpace(pathValue)
+	root = strings.TrimSpace(root)
+	if pathValue == "" || root == "" {
+		return "", false
+	}
+	if strings.HasPrefix(strings.ToLower(root), "cloud://") || strings.HasPrefix(strings.ToLower(pathValue), "cloud://") {
+		prefix := strings.TrimRight(root, "/") + "/"
+		if strings.EqualFold(pathValue, root) {
+			return "", true
+		}
+		if strings.HasPrefix(strings.ToLower(pathValue), strings.ToLower(prefix)) {
+			return strings.TrimPrefix(pathValue, prefix), true
+		}
+		return "", false
+	}
+	cleanPath := filepath.Clean(pathValue)
+	cleanRoot := filepath.Clean(root)
+	rel, err := filepath.Rel(cleanRoot, cleanPath)
+	if err != nil || rel == "." || strings.HasPrefix(rel, "..") || filepath.IsAbs(rel) {
+		return "", false
+	}
+	return rel, true
+}
+
+func firstLibraryRootLabel(pathValue string) string {
+	pathValue = strings.TrimSpace(pathValue)
+	if pathValue == "" {
+		return ""
+	}
+	if strings.HasPrefix(strings.ToLower(pathValue), "cloud://") {
+		parts := strings.Split(strings.Trim(pathValue, "/"), "/")
+		if len(parts) > 0 {
+			return parts[len(parts)-1]
+		}
+	}
+	base := filepath.Base(filepath.Clean(pathValue))
+	if base == "." || base == string(filepath.Separator) {
+		return pathValue
+	}
+	return base
+}
+
 // mediaSearchIndexSchemaVersion identifies the physical FTS index layout.
 // v2 aligns FTS rowids with media rowids and keeps the index current with
 // triggers.

internal/handler/media.go

@@ -16,7 +16,9 @@ import (
 
 type createLibraryReq struct {
 	Name  string                     `json:"name" binding:"required"`
-	Path string `json:"path" binding:"required"`
+	Path  string                     `json:"path"`
+	Paths []string                   `json:"paths"`
+	Roots []service.LibraryRootInput `json:"roots"`
 	Type  string                     `json:"type"`
 }
 
@@ -54,7 +56,16 @@ func createLibraryHandler(svc *service.Container) gin.HandlerFunc {
 			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 			return
 		}
-		l, err := svc.Media.CreateLibrary(c.Request.Context(), req.Name, req.Path, req.Type)
+		roots := req.Roots
+		if len(roots) == 0 {
+			for _, path := range req.Paths {
+				roots = append(roots, service.LibraryRootInput{Path: path})
+			}
+		}
+		if len(roots) == 0 && strings.TrimSpace(req.Path) != "" {
+			roots = append(roots, service.LibraryRootInput{Path: req.Path})
+		}
+		l, err := svc.Media.CreateLibraryWithRoots(c.Request.Context(), req.Name, req.Type, roots)
 		if err != nil {
 			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 			return
@@ -67,6 +78,66 @@ func createLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func listLibraryRootsHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		roots, err := svc.Media.ListLibraryRoots(c.Request.Context(), c.Param("id"))
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, roots)
+	}
+}
+
+func createLibraryRootHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req service.LibraryRootInput
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		root, err := svc.Media.AddLibraryRoot(c.Request.Context(), c.Param("id"), req)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		go func() { _ = svc.Watcher.Refresh(context.Background()) }()
+		c.JSON(http.StatusCreated, root)
+	}
+}
+
+func updateLibraryRootHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		var req service.LibraryRootInput
+		if err := c.ShouldBindJSON(&req); err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+			return
+		}
+		root, err := svc.Media.UpdateLibraryRoot(c.Request.Context(), c.Param("id"), c.Param("root_id"), req)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		if root == nil {
+			c.JSON(http.StatusNotFound, gin.H{"error": "library root not found"})
+			return
+		}
+		go func() { _ = svc.Watcher.Refresh(context.Background()) }()
+		c.JSON(http.StatusOK, root)
+	}
+}
+
+func deleteLibraryRootHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		if err := svc.Media.DeleteLibraryRoot(c.Request.Context(), c.Param("id"), c.Param("root_id")); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		go func() { _ = svc.Watcher.Refresh(context.Background()) }()
+		c.Status(http.StatusNoContent)
+	}
+}
+
 func deleteLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		id := c.Param("id")
@@ -155,6 +226,40 @@ func scanLibraryHandler(svc *service.Container) gin.HandlerFunc {
 	}
 }
 
+func scanLibraryRootHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		id := c.Param("id")
+		rootID := c.Param("root_id")
+		finishScan, ok := svc.Scan.TryBeginLocalScan(id + ":" + rootID)
+		if !ok {
+			c.JSON(http.StatusAccepted, gin.H{
+				"library_id":       id,
+				"queued":           true,
+				"already_running":  true,
+				"message":          "该路径正在后台扫描，请在任务面板查看进度",
+				"estimate_message": "页面关闭不会中断扫描",
+			})
+			return
+		}
+		task := startScanHTTPTask(svc, "手动扫描媒体库路径", id, rootID)
+		go func(libraryID, libraryRootID string, task *service.TaskHandle, finish func()) {
+			defer finish()
+			res, err := svc.Scan.ScanLibraryRoot(context.Background(), libraryID, libraryRootID)
+			if err != nil {
+				finishHTTPTask(task, err, "scan", "手动扫描路径失败", scanTaskMetrics(res), scanTaskDetails(res, 20))
+				return
+			}
+			finishHTTPTask(task, nil, "completed", "手动扫描路径结束", scanTaskMetrics(res), scanTaskDetails(res, 20))
+		}(id, rootID, task, finishScan)
+		c.JSON(http.StatusAccepted, gin.H{
+			"library_id":       id,
+			"queued":           true,
+			"message":          "媒体库路径扫描已在后台运行，页面关闭不会中断",
+			"estimate_message": "可在右上角任务面板查看扫描进度",
+		})
+	}
+}
+
 func startScanHTTPTask(svc *service.Container, name, libraryName, path string) *service.TaskHandle {
 	if svc == nil || svc.Tasks == nil {
 		return nil

internal/handler/routes_authenticated_core.go

@@ -24,6 +24,11 @@ func registerAuthedLibraryRoutes(authed *gin.RouterGroup, svc *service.Container
 	authed.GET("/libraries", listLibrariesHandler(svc))
 	authed.POST("/libraries", middleware.AdminRequired(), createLibraryHandler(svc))
 	authed.DELETE("/libraries/:id", middleware.AdminRequired(), deleteLibraryHandler(svc))
+	authed.GET("/libraries/:id/roots", middleware.AdminRequired(), listLibraryRootsHandler(svc))
+	authed.POST("/libraries/:id/roots", middleware.AdminRequired(), createLibraryRootHandler(svc))
+	authed.PATCH("/libraries/:id/roots/:root_id", middleware.AdminRequired(), updateLibraryRootHandler(svc))
+	authed.DELETE("/libraries/:id/roots/:root_id", middleware.AdminRequired(), deleteLibraryRootHandler(svc))
+	authed.POST("/libraries/:id/roots/:root_id/scan", middleware.AdminRequired(), scanLibraryRootHandler(svc))
 	authed.POST("/libraries/:id/scan", middleware.AdminRequired(), scanLibraryHandler(svc))
 	authed.POST("/libraries/:id/scrape", middleware.AdminRequired(), scrapeLibraryHandler(svc))
 

internal/model/model.go

@@ -59,24 +59,37 @@ type User struct {
 	RealtimeDeviceCount int        `gorm:"-" json:"realtime_device_count,omitempty"`
 }
 
-// Library 表示用户定义的媒体根目录。
+// Library 表示一个逻辑媒体库。Path 保留为兼容字段，指向第一条 LibraryRoot。
 type Library struct {
 	Base
 	Name    string        `gorm:"size:128;not null" json:"name"`
 	Path    string        `gorm:"size:1024;not null" json:"path"`
 	Type    string        `gorm:"size:16;not null;default:movie" json:"type"` // movie / tv / anime / music
 	Enabled bool          `gorm:"default:true" json:"enabled"`
+	Roots   []LibraryRoot `gorm:"foreignKey:LibraryID" json:"roots,omitempty"`
+}
+
+// LibraryRoot 是逻辑媒体库下的一条真实物理/挂载路径。
+type LibraryRoot struct {
+	Base
+	LibraryID string `gorm:"index;size:36;not null" json:"library_id"`
+	Name      string `gorm:"size:128" json:"name,omitempty"`
+	Path      string `gorm:"size:1024;not null" json:"path"`
+	Enabled   bool   `gorm:"default:true" json:"enabled"`
+	SortOrder int    `gorm:"default:0" json:"sort_order"`
 }
 
 // Media 是单个可播放项。剧集链接到 SeriesID；电影 SeriesID == ""。
 type Media struct {
 	Base
 	LibraryID     string  `gorm:"index;size:36" json:"library_id"`
+	LibraryRootID string  `gorm:"index;size:36" json:"library_root_id,omitempty"`
 	SeriesID      string  `gorm:"index;size:128" json:"series_id,omitempty"`
 	Title         string  `gorm:"size:255;not null" json:"title"`
 	OriginalName  string  `gorm:"size:255" json:"original_name,omitempty"`
 	EpisodeTitle  string  `gorm:"size:255" json:"episode_title,omitempty"`
 	Path          string  `gorm:"uniqueIndex;size:1024;not null" json:"path"`
+	RelativePath  string  `gorm:"size:1024" json:"relative_path,omitempty"`
 	SizeBytes     int64   `json:"size_bytes"`
 	DurationSec   int     `json:"duration_sec"`
 	Width         int     `json:"width"`
@@ -352,6 +365,7 @@ func AllModels() []interface{} {
 	return []interface{}{
 		&User{},
 		&Library{},
+		&LibraryRoot{},
 		&Series{},
 		&Media{},
 		&PlaybackHistory{},

internal/repository/library_repository.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"context"
 	"errors"
+	"strings"
 
 	"gorm.io/gorm"
 
@@ -17,17 +18,51 @@ func (r *LibraryRepository) Create(ctx context.Context, l *model.Library) error
 	return r.db.WithContext(ctx).Create(l).Error
 }
 
+func (r *LibraryRepository) CreateWithRoots(ctx context.Context, l *model.Library, roots []model.LibraryRoot) error {
+	if !r.hasLibraryRootsTable() {
+		return r.Create(ctx, l)
+	}
+	return r.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		if err := tx.Create(l).Error; err != nil {
+			return err
+		}
+		for i := range roots {
+			roots[i].LibraryID = l.ID
+			if roots[i].SortOrder == 0 {
+				roots[i].SortOrder = i
+			}
+			if err := tx.Create(&roots[i]).Error; err != nil {
+				return err
+			}
+		}
+		l.Roots = roots
+		return nil
+	})
+}
+
 // List returns all enabled+disabled libraries.
 func (r *LibraryRepository) List(ctx context.Context) ([]model.Library, error) {
 	var ls []model.Library
-	err := r.db.WithContext(ctx).Order("created_at asc").Find(&ls).Error
+	q := r.db.WithContext(ctx).Order("created_at asc")
+	if r.hasLibraryRootsTable() {
+		q = q.Preload("Roots", func(db *gorm.DB) *gorm.DB {
+			return db.Order("sort_order asc, created_at asc")
+		})
+	}
+	err := q.Find(&ls).Error
 	return ls, err
 }
 
 // FindByID returns the library, or (nil, nil) when missing.
 func (r *LibraryRepository) FindByID(ctx context.Context, id string) (*model.Library, error) {
 	var l model.Library
-	err := r.db.WithContext(ctx).Where("id = ?", id).First(&l).Error
+	q := r.db.WithContext(ctx).Where("id = ?", id)
+	if r.hasLibraryRootsTable() {
+		q = q.Preload("Roots", func(db *gorm.DB) *gorm.DB {
+			return db.Order("sort_order asc, created_at asc")
+		})
+	}
+	err := q.First(&l).Error
 	if errors.Is(err, gorm.ErrRecordNotFound) {
 		return nil, nil
 	}
@@ -42,3 +77,62 @@ func (r *LibraryRepository) FindByID(ctx context.Context, id string) (*model.Lib
 func (r *LibraryRepository) Delete(ctx context.Context, id string) error {
 	return r.db.WithContext(ctx).Delete(&model.Library{}, "id = ?", id).Error
 }
+
+func (r *LibraryRepository) ListRoots(ctx context.Context, libraryID string) ([]model.LibraryRoot, error) {
+	if !r.hasLibraryRootsTable() {
+		return nil, nil
+	}
+	var roots []model.LibraryRoot
+	err := r.db.WithContext(ctx).
+		Where("library_id = ?", libraryID).
+		Order("sort_order asc, created_at asc").
+		Find(&roots).Error
+	return roots, err
+}
+
+func (r *LibraryRepository) FindRootByID(ctx context.Context, libraryID, rootID string) (*model.LibraryRoot, error) {
+	if !r.hasLibraryRootsTable() {
+		return nil, nil
+	}
+	var root model.LibraryRoot
+	q := r.db.WithContext(ctx).Where("id = ?", rootID)
+	if strings.TrimSpace(libraryID) != "" {
+		q = q.Where("library_id = ?", libraryID)
+	}
+	err := q.First(&root).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &root, nil
+}
+
+func (r *LibraryRepository) CreateRoot(ctx context.Context, root *model.LibraryRoot) error {
+	if !r.hasLibraryRootsTable() {
+		return nil
+	}
+	return r.db.WithContext(ctx).Create(root).Error
+}
+
+func (r *LibraryRepository) UpdateRoot(ctx context.Context, root *model.LibraryRoot, updates map[string]any) error {
+	if !r.hasLibraryRootsTable() {
+		return nil
+	}
+	if root == nil || strings.TrimSpace(root.ID) == "" || len(updates) == 0 {
+		return nil
+	}
+	return r.db.WithContext(ctx).Model(&model.LibraryRoot{}).Where("id = ?", root.ID).Updates(updates).Error
+}
+
+func (r *LibraryRepository) DeleteRoot(ctx context.Context, libraryID, rootID string) error {
+	if !r.hasLibraryRootsTable() {
+		return nil
+	}
+	return r.db.WithContext(ctx).Where("library_id = ?", libraryID).Delete(&model.LibraryRoot{}, "id = ?", rootID).Error
+}
+
+func (r *LibraryRepository) hasLibraryRootsTable() bool {
+	return r != nil && r.db != nil && r.db.Migrator().HasTable(&model.LibraryRoot{})
+}

internal/repository/media_repository.go

@@ -223,6 +223,12 @@ func addMediaPlacementUpdates(updates map[string]any, existing, incoming model.M
 			updates["library_id"] = incoming.LibraryID
 		}
 	}
+	if incoming.LibraryRootID != "" && incoming.LibraryRootID != existing.LibraryRootID {
+		updates["library_root_id"] = incoming.LibraryRootID
+	}
+	if incoming.RelativePath != "" && incoming.RelativePath != existing.RelativePath {
+		updates["relative_path"] = incoming.RelativePath
+	}
 	seasonChanged := (incoming.SeasonNum > 0 || incoming.EpisodeNum > 0) && existing.SeasonNum != incoming.SeasonNum
 	episodeChanged := incoming.EpisodeNum > 0 && existing.EpisodeNum != incoming.EpisodeNum
 	if seasonChanged {
@@ -355,6 +361,12 @@ func (r *MediaRepository) DeleteByLibrary(ctx context.Context, libraryID string)
 	return r.db.WithContext(ctx).Where("library_id = ?", libraryID).Delete(&model.Media{}).Error
 }
 
+func (r *MediaRepository) DeleteByLibraryRoot(ctx context.Context, libraryID, rootID string) error {
+	return r.db.WithContext(ctx).
+		Where("library_id = ? AND library_root_id = ?", libraryID, rootID).
+		Delete(&model.Media{}).Error
+}
+
 // PurgeByLibrary permanently removes media tied to a library. Used for virtual
 // cloud mounts where "remove mount" must not populate the recycle bin.
 func (r *MediaRepository) PurgeByLibrary(ctx context.Context, libraryID string) error {

internal/service/bot_device_policy_test.go

@@ -87,7 +87,7 @@ func TestTerminalDeviceLimitDeduplicatesAppsOnSameDevice(t *testing.T) {
 		dev.RecordLogin(ctx, u.ID, login.id, login.name, login.client, "1.2.3.4")
 		now = now.Add(time.Second)
 	}
-	count, err := repos.UserDevice.CountActiveClients(ctx, u.ID, time.Now().Add(-24*time.Hour))
+	count, err := repos.UserDevice.CountActiveClients(ctx, u.ID, now.Add(-24*time.Hour))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -118,7 +118,7 @@ func TestTerminalDeviceLimitDeduplicatesAppsOnSameDevice(t *testing.T) {
 
 	dev.RecordLogin(ctx, u.ID, "tablet", "iPad", "Infuse", "1.2.3.4")
 	dev.RecordLogin(ctx, u.ID, "pc", "Windows PC", "Browser", "1.2.3.4")
-	count, err = repos.UserDevice.CountActiveClients(ctx, u.ID, time.Now().Add(-24*time.Hour))
+	count, err = repos.UserDevice.CountActiveClients(ctx, u.ID, now.Add(-24*time.Hour))
 	if err != nil {
 		t.Fatal(err)
 	}

internal/service/media.go

@@ -4,6 +4,9 @@ package service
 import (
 	"context"
 	"errors"
+	"fmt"
+	"path/filepath"
+	"strings"
 	"time"
 
 	"go.uber.org/zap"
@@ -31,6 +34,14 @@ type MediaVisibility struct {
 const maxMediaSearchLimit = 50000
 const maxMediaSearchPageSize = 2000
 
+type LibraryRootInput struct {
+	ID        string `json:"id,omitempty"`
+	Name      string `json:"name,omitempty"`
+	Path      string `json:"path"`
+	Enabled   *bool  `json:"enabled,omitempty"`
+	SortOrder *int   `json:"sort_order,omitempty"`
+}
+
 func (v MediaVisibility) Allows(media *model.Media) bool {
 	if media == nil {
 		return false
@@ -68,27 +79,210 @@ func (s *MediaService) SetRuntimeCache(cache *RuntimeCacheService) *MediaService
 
 // CreateLibrary persists a library after validating that its path exists.
 func (s *MediaService) CreateLibrary(ctx context.Context, name, path, kind string) (*model.Library, error) {
-	if name == "" || path == "" {
+	return s.CreateLibraryWithRoots(ctx, name, kind, []LibraryRootInput{{Path: path}})
-		return nil, errors.New("name and path required")
+}
+
+func (s *MediaService) CreateLibraryWithRoots(ctx context.Context, name, kind string, inputs []LibraryRootInput) (*model.Library, error) {
+	if strings.TrimSpace(name) == "" {
+		return nil, errors.New("name required")
 	}
-	abs, err := resolveAccessibleLibraryPath(path)
+	roots, err := normalizeLibraryRootInputs(inputs, true)
 	if err != nil {
 		return nil, err
 	}
-	kind = inferLibraryKind(name, abs, kind)
+	kind = inferLibraryKind(name, roots[0].Path, kind)
-	lib := &model.Library{Name: name, Path: abs, Type: kind, Enabled: true}
+	lib := &model.Library{Name: strings.TrimSpace(name), Path: roots[0].Path, Type: kind, Enabled: true}
-	if err := s.repo.Library.Create(ctx, lib); err != nil {
+	if err := s.repo.Library.CreateWithRoots(ctx, lib, roots); err != nil {
 		return nil, err
 	}
 	s.invalidateMediaCache(ctx)
 	return lib, nil
 }
 
+func normalizeLibraryRootInputs(inputs []LibraryRootInput, requirePath bool) ([]model.LibraryRoot, error) {
+	roots := make([]model.LibraryRoot, 0, len(inputs))
+	seen := map[string]struct{}{}
+	for i, input := range inputs {
+		rawPath := strings.TrimSpace(input.Path)
+		if rawPath == "" {
+			if requirePath {
+				return nil, errors.New("at least one path required")
+			}
+			continue
+		}
+		abs, err := resolveAccessibleLibraryPath(rawPath)
+		if err != nil {
+			return nil, err
+		}
+		key := strings.ToLower(filepath.Clean(abs))
+		if _, ok := seen[key]; ok {
+			return nil, fmt.Errorf("duplicate library path: %s", abs)
+		}
+		seen[key] = struct{}{}
+		enabled := true
+		if input.Enabled != nil {
+			enabled = *input.Enabled
+		}
+		roots = append(roots, model.LibraryRoot{
+			Name:    strings.TrimSpace(input.Name),
+			Path:    abs,
+			Enabled: enabled,
+		})
+		if input.SortOrder != nil {
+			roots[len(roots)-1].SortOrder = *input.SortOrder
+		} else {
+			roots[len(roots)-1].SortOrder = i
+		}
+	}
+	if len(roots) == 0 && requirePath {
+		return nil, errors.New("at least one path required")
+	}
+	return roots, nil
+}
+
 // ListLibraries returns every library configured on the server.
 func (s *MediaService) ListLibraries(ctx context.Context) ([]model.Library, error) {
 	return s.repo.Library.List(ctx)
 }
 
+func (s *MediaService) ListLibraryRoots(ctx context.Context, libraryID string) ([]model.LibraryRoot, error) {
+	if err := s.ensureLibraryRoots(ctx, libraryID); err != nil {
+		return nil, err
+	}
+	return s.repo.Library.ListRoots(ctx, libraryID)
+}
+
+func (s *MediaService) AddLibraryRoot(ctx context.Context, libraryID string, input LibraryRootInput) (*model.LibraryRoot, error) {
+	lib, err := s.repo.Library.FindByID(ctx, libraryID)
+	if err != nil {
+		return nil, err
+	}
+	if lib == nil {
+		return nil, errors.New("library not found")
+	}
+	roots, err := normalizeLibraryRootInputs([]LibraryRootInput{input}, true)
+	if err != nil {
+		return nil, err
+	}
+	root := roots[0]
+	root.LibraryID = libraryID
+	if err := s.ensureLibraryRootPathUnique(ctx, libraryID, "", root.Path); err != nil {
+		return nil, err
+	}
+	if root.SortOrder == 0 {
+		existing, _ := s.repo.Library.ListRoots(ctx, libraryID)
+		root.SortOrder = len(existing)
+	}
+	if err := s.repo.Library.CreateRoot(ctx, &root); err != nil {
+		return nil, err
+	}
+	if strings.TrimSpace(lib.Path) == "" {
+		_ = s.repo.DB.WithContext(ctx).Model(&model.Library{}).Where("id = ?", libraryID).Update("path", root.Path).Error
+	}
+	return &root, nil
+}
+
+func (s *MediaService) UpdateLibraryRoot(ctx context.Context, libraryID, rootID string, input LibraryRootInput) (*model.LibraryRoot, error) {
+	root, err := s.repo.Library.FindRootByID(ctx, libraryID, rootID)
+	if err != nil || root == nil {
+		return root, err
+	}
+	updates := map[string]any{}
+	if input.Name != "" {
+		updates["name"] = strings.TrimSpace(input.Name)
+	}
+	if strings.TrimSpace(input.Path) != "" {
+		roots, err := normalizeLibraryRootInputs([]LibraryRootInput{input}, true)
+		if err != nil {
+			return nil, err
+		}
+		if err := s.ensureLibraryRootPathUnique(ctx, libraryID, rootID, roots[0].Path); err != nil {
+			return nil, err
+		}
+		updates["path"] = roots[0].Path
+		root.Path = roots[0].Path
+	}
+	if input.Enabled != nil {
+		updates["enabled"] = *input.Enabled
+		root.Enabled = *input.Enabled
+	}
+	if input.SortOrder != nil {
+		updates["sort_order"] = *input.SortOrder
+		root.SortOrder = *input.SortOrder
+	}
+	if err := s.repo.Library.UpdateRoot(ctx, root, updates); err != nil {
+		return nil, err
+	}
+	if err := s.syncLibraryPrimaryRoot(ctx, libraryID); err != nil {
+		return nil, err
+	}
+	return s.repo.Library.FindRootByID(ctx, libraryID, rootID)
+}
+
+func (s *MediaService) DeleteLibraryRoot(ctx context.Context, libraryID, rootID string) error {
+	root, err := s.repo.Library.FindRootByID(ctx, libraryID, rootID)
+	if err != nil {
+		return err
+	}
+	if root == nil {
+		return errors.New("library root not found")
+	}
+	roots, err := s.repo.Library.ListRoots(ctx, libraryID)
+	if err != nil {
+		return err
+	}
+	if len(roots) <= 1 {
+		return errors.New("library must keep at least one path")
+	}
+	if err := s.repo.Media.DeleteByLibraryRoot(ctx, libraryID, rootID); err != nil {
+		return err
+	}
+	if err := s.repo.Library.DeleteRoot(ctx, libraryID, rootID); err != nil {
+		return err
+	}
+	return s.syncLibraryPrimaryRoot(ctx, libraryID)
+}
+
+func (s *MediaService) ensureLibraryRoots(ctx context.Context, libraryID string) error {
+	lib, err := s.repo.Library.FindByID(ctx, libraryID)
+	if err != nil || lib == nil || len(lib.Roots) > 0 || strings.TrimSpace(lib.Path) == "" {
+		return err
+	}
+	root := &model.LibraryRoot{
+		LibraryID: libraryID,
+		Name:      filepath.Base(filepath.Clean(lib.Path)),
+		Path:      lib.Path,
+		Enabled:   lib.Enabled,
+		SortOrder: 0,
+	}
+	return s.repo.Library.CreateRoot(ctx, root)
+}
+
+func (s *MediaService) syncLibraryPrimaryRoot(ctx context.Context, libraryID string) error {
+	roots, err := s.repo.Library.ListRoots(ctx, libraryID)
+	if err != nil || len(roots) == 0 {
+		return err
+	}
+	return s.repo.DB.WithContext(ctx).Model(&model.Library{}).Where("id = ?", libraryID).Update("path", roots[0].Path).Error
+}
+
+func (s *MediaService) ensureLibraryRootPathUnique(ctx context.Context, libraryID, exceptRootID, pathValue string) error {
+	roots, err := s.repo.Library.ListRoots(ctx, libraryID)
+	if err != nil {
+		return err
+	}
+	key := strings.ToLower(filepath.Clean(strings.TrimSpace(pathValue)))
+	for _, existing := range roots {
+		if existing.ID == exceptRootID {
+			continue
+		}
+		if strings.ToLower(filepath.Clean(strings.TrimSpace(existing.Path))) == key {
+			return fmt.Errorf("duplicate library path: %s", pathValue)
+		}
+	}
+	return nil
+}
+
 // DeleteLibrary removes a library and its media rows. The on-disk files are
 // left untouched.
 func (s *MediaService) DeleteLibrary(ctx context.Context, id string) error {
@@ -101,6 +295,7 @@ func (s *MediaService) DeleteLibrary(ctx context.Context, id string) error {
 			if err := s.repo.Media.PurgeByLibrary(ctx, id); err != nil {
 				return err
 			}
+			_ = s.repo.DB.WithContext(ctx).Where("library_id = ?", id).Delete(&model.LibraryRoot{}).Error
 			err := s.repo.DB.WithContext(ctx).Unscoped().Where("id = ?", id).Delete(&model.Library{}).Error
 			if err == nil {
 				s.invalidateMediaCache(ctx)
@@ -108,6 +303,7 @@ func (s *MediaService) DeleteLibrary(ctx context.Context, id string) error {
 			return err
 		}
 	}
+	_ = s.repo.DB.WithContext(ctx).Where("library_id = ?", id).Delete(&model.LibraryRoot{}).Error
 	if err := s.repo.Media.DeleteByLibrary(ctx, id); err != nil {
 		return err
 	}

internal/service/organizer_directory_classification_test.go

@@ -215,6 +215,45 @@ func TestOrganizeDirectoryCreatesMissingCategoryLibraryForVisibility(t *testing.
 	}
 }
 
+func TestOrganizeDirectoryCanDisableAutoAddLibrary(t *testing.T) {
+	root := t.TempDir()
+	srcRoot := filepath.Join(root, "downloads")
+	dest := filepath.Join(root, "media")
+	source := filepath.Join(srcRoot, "Some.Show.S01E01.2026.1080p.mkv")
+	writeOrgFile(t, source, "episode")
+
+	repos := newOrganizerTestRepo(t)
+	if err := repos.Setting.Set(t.Context(), "organize.auto_add_library", "false"); err != nil {
+		t.Fatal(err)
+	}
+	org := NewOrganizerService(&config.Config{}, zap.NewNop(), repos)
+	res, err := org.OrganizeDirectory(t.Context(), OrganizeOptions{
+		SourcePath:    srcRoot,
+		DestPath:      dest,
+		MediaType:     "tv",
+		MediaCategory: "未分类",
+		TransferMode:  TransferCopy,
+	})
+	if err != nil {
+		t.Fatalf("organize missing category with auto-add disabled: %v", err)
+	}
+	if res.Organized != 1 || len(res.Items) != 1 {
+		t.Fatalf("result = %+v, want one organized item", res)
+	}
+	want := filepath.Join(dest, "电视剧", "未分类", "Some Show", "Season 01", "Some Show - S01E01.mkv")
+	if _, err := os.Stat(want); err != nil {
+		t.Fatalf("expected organized file at %q: %v", want, err)
+	}
+
+	var count int64
+	if err := repos.DB.Model(&model.Library{}).Where("path = ?", filepath.Join(dest, "电视剧", "未分类")).Count(&count).Error; err != nil {
+		t.Fatal(err)
+	}
+	if count != 0 {
+		t.Fatalf("auto-add disabled should not create library, got %d rows", count)
+	}
+}
+
 func TestOrganizeDirectorySmartClassifiesUncategorizedSources(t *testing.T) {
 	root := t.TempDir()
 	src := filepath.Join(root, "downloads")

internal/service/organizer_directory_libraries.go

@@ -218,6 +218,15 @@ func (o *OrganizerService) ensureOrganizeLibraryForRoot(ctx context.Context, roo
 	if strings.TrimSpace(category) == "" && hasContainingLibrary {
 		return containingLibrary, true
 	}
+	if !o.autoAddLibraryEnabled(ctx) {
+		if o.log != nil {
+			o.log.Debug("organize skipped missing library auto-create",
+				zap.String("path", root),
+				zap.String("media_type", mediaType),
+				zap.String("category", category))
+		}
+		return model.Library{}, false
+	}
 	name := strings.TrimSpace(category)
 	if name == "" {
 		name = filepath.Base(root)
@@ -231,7 +240,12 @@ func (o *OrganizerService) ensureOrganizeLibraryForRoot(ctx context.Context, roo
 		Type:    organizeLibraryModelType(mediaType),
 		Enabled: true,
 	}
-	if err := o.repo.Library.Create(ctx, &lib); err != nil {
+	if err := o.repo.Library.CreateWithRoots(ctx, &lib, []model.LibraryRoot{{
+		Name:      name,
+		Path:      root,
+		Enabled:   true,
+		SortOrder: 0,
+	}}); err != nil {
 		if o.log != nil {
 			o.log.Warn("organize auto-create library failed",
 				zap.String("path", root),

internal/service/organizer_settings.go

@@ -73,3 +73,14 @@ func (o *OrganizerService) keepSeedingEnabled(ctx context.Context) bool {
 	}
 	return v == "true" || v == "1" || v == "on"
 }
+
+func (o *OrganizerService) autoAddLibraryEnabled(ctx context.Context) bool {
+	if o == nil || o.repo == nil || o.repo.Setting == nil {
+		return true
+	}
+	v, err := o.repo.Setting.Get(ctx, "organize.auto_add_library")
+	if err != nil || strings.TrimSpace(v) == "" {
+		return true
+	}
+	return parseBoolSetting(v, true)
+}

internal/service/scanner.go

@@ -263,6 +263,8 @@ type existingCloudMedia struct {
 }
 
 type existingLocalMedia struct {
+	LibraryRootID string
+	RelativePath  string
 	Title         string
 	OriginalName  string
 	EpisodeTitle  string

internal/service/scanner_existing_media.go

@@ -67,7 +67,7 @@ func (s *ScannerService) existingLocalMediaSnapshot(ctx context.Context, library
 	var rows []model.Media
 	if err := s.repo.DB.WithContext(ctx).
 		Model(&model.Media{}).
-		Select("path", "title", "original_name", "episode_title", "size_bytes", "duration_sec", "width", "height", "video_codec", "audio_codec", "container", "strm_url", "file_id", "poster_url", "backdrop_url", "overview", "year", "rating", "tm_db_id", "bangumi_id", "douban_id", "thetvdb_id", "season_num", "episode_num", "genres", "countries", "languages", "nsfw", "scrape_status").
+		Select("path", "library_root_id", "relative_path", "title", "original_name", "episode_title", "size_bytes", "duration_sec", "width", "height", "video_codec", "audio_codec", "container", "strm_url", "file_id", "poster_url", "backdrop_url", "overview", "year", "rating", "tm_db_id", "bangumi_id", "douban_id", "thetvdb_id", "season_num", "episode_num", "genres", "countries", "languages", "nsfw", "scrape_status").
 		Where("library_id = ? AND path NOT LIKE ?", libraryID, "cloud://%").
 		Find(&rows).Error; err != nil {
 		return nil, err
@@ -78,6 +78,8 @@ func (s *ScannerService) existingLocalMediaSnapshot(ctx context.Context, library
 			continue
 		}
 		snapshot[filepath.Clean(row.Path)] = existingLocalMedia{
+			LibraryRootID: row.LibraryRootID,
+			RelativePath:  row.RelativePath,
 			Title:         row.Title,
 			OriginalName:  row.OriginalName,
 			EpisodeTitle:  row.EpisodeTitle,

internal/service/scanner_library_roots_test.go

@@ -0,0 +1,90 @@
+package service
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"go.uber.org/zap"
+
+	"github.com/ShukeBta/MediaStationGo/internal/model"
+	"github.com/ShukeBta/MediaStationGo/internal/repository"
+)
+
+func TestScanLibraryScansMultipleRootsAndPrunesPerRoot(t *testing.T) {
+	rootA := t.TempDir()
+	rootB := t.TempDir()
+	fileA := filepath.Join(rootA, "电影A.2024.mkv")
+	fileB := filepath.Join(rootB, "电影B.2025.mkv")
+	writeTestFile(t, fileA, "a")
+	writeTestFile(t, fileB, "b")
+
+	db := newServiceTestDB(t, &model.Library{}, &model.LibraryRoot{}, &model.Media{}, &model.Setting{})
+	repos := repository.New(db)
+	lib := &model.Library{Name: "电影", Path: rootA, Type: "movie", Enabled: true}
+	roots := []model.LibraryRoot{
+		{Name: "硬盘1", Path: rootA, Enabled: true, SortOrder: 0},
+		{Name: "硬盘2", Path: rootB, Enabled: true, SortOrder: 1},
+	}
+	if err := repos.Library.CreateWithRoots(t.Context(), lib, roots); err != nil {
+		t.Fatal(err)
+	}
+
+	scanner := NewScannerService(nil, zap.NewNop(), repos, NewHub(zap.NewNop()), nil, nil)
+	res, err := scanner.ScanLibrary(t.Context(), lib.ID)
+	if err != nil {
+		t.Fatalf("scan multiple roots: %v", err)
+	}
+	if res.Added != 2 {
+		t.Fatalf("added = %d, want 2", res.Added)
+	}
+	var rows []model.Media
+	if err := db.Order("path asc").Find(&rows).Error; err != nil {
+		t.Fatal(err)
+	}
+	if len(rows) != 2 {
+		t.Fatalf("media rows = %d, want 2", len(rows))
+	}
+	for _, row := range rows {
+		if row.LibraryRootID == "" {
+			t.Fatalf("media %q missing library_root_id", row.Path)
+		}
+		if row.RelativePath == "" {
+			t.Fatalf("media %q missing relative_path", row.Path)
+		}
+	}
+
+	removeTestPath(t, fileA)
+	removeTestPath(t, rootB)
+	res, err = scanner.ScanLibrary(t.Context(), lib.ID)
+	if err != nil {
+		t.Fatalf("scan with one offline root should continue: %v", err)
+	}
+	if res.Removed != 1 {
+		t.Fatalf("removed = %d, want only vanished file from accessible root removed", res.Removed)
+	}
+	rows = nil
+	if err := db.Find(&rows).Error; err != nil {
+		t.Fatal(err)
+	}
+	if len(rows) != 1 || rows[0].Path != fileB {
+		t.Fatalf("remaining rows = %#v, want offline root media preserved", rows)
+	}
+}
+
+func writeTestFile(t *testing.T, path, content string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(path, []byte(content), 0o644); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func removeTestPath(t *testing.T, path string) {
+	t.Helper()
+	if err := os.RemoveAll(path); err != nil {
+		t.Fatal(err)
+	}
+}

internal/service/scanner_local_ingest.go

@@ -13,7 +13,7 @@ import (
 
 // ingestFile upserts a single media file. seenInodes dedups hardlinks within a
 // single scan; pass a fresh map for one-off ingests. It mutates res counters.
-func (s *ScannerService) ingestFile(ctx context.Context, lib *model.Library, path string, size int64, seenInodes map[string]string, existingMedia map[string]existingLocalMedia, writeBatch *localMediaWriteBatch, res *ScanResult) {
+func (s *ScannerService) ingestFile(ctx context.Context, lib *model.Library, root *model.LibraryRoot, path string, size int64, seenInodes map[string]string, existingMedia map[string]existingLocalMedia, writeBatch *localMediaWriteBatch, res *ScanResult) {
 	res.Visited++
 	ext := strings.ToLower(filepath.Ext(path))
 	cleanPath := filepath.Clean(path)
@@ -24,9 +24,10 @@ func (s *ScannerService) ingestFile(ctx context.Context, lib *model.Library, pat
 	}
 
 	parsedSeason, parsedEpisode := ParseEpisode(path)
-	localMeta := s.readLocalScanMetadata(lib, path, parsedSeason, parsedEpisode)
+	localMeta := s.readLocalScanMetadata(lib, root, path, parsedSeason, parsedEpisode)
 	media := s.buildLocalScanMedia(localScanMediaInput{
 		lib:           lib,
+		root:          root,
 		path:          path,
 		ext:           ext,
 		fileID:        fileID,
@@ -87,8 +88,12 @@ func (s *ScannerService) recordLocalFileIdentity(ctx context.Context, path strin
 	return fileID, false
 }
 
-func (s *ScannerService) readLocalScanMetadata(lib *model.Library, path string, parsedSeason, parsedEpisode int) *LocalMetadata {
+func (s *ScannerService) readLocalScanMetadata(lib *model.Library, root *model.LibraryRoot, path string, parsedSeason, parsedEpisode int) *LocalMetadata {
-	localMeta, err := ReadLocalMetadata(path, lib.Path, librarySupportsSeasons(lib) || parsedSeason > 0 || parsedEpisode > 0)
+	rootPath := lib.Path
+	if root != nil && strings.TrimSpace(root.Path) != "" {
+		rootPath = root.Path
+	}
+	localMeta, err := ReadLocalMetadata(path, rootPath, librarySupportsSeasons(lib) || parsedSeason > 0 || parsedEpisode > 0)
 	if err != nil {
 		s.log.Warn("read local metadata failed", zap.String("path", path), zap.Error(err))
 	}
@@ -120,6 +125,7 @@ func (s *ScannerService) localMediaScanState(in localMediaScanStateInput) (bool,
 
 type localScanMediaInput struct {
 	lib           *model.Library
+	root          *model.LibraryRoot
 	path          string
 	ext           string
 	fileID        string
@@ -137,6 +143,8 @@ func (s *ScannerService) buildLocalScanMedia(in localScanMediaInput) *model.Medi
 
 	media := &model.Media{
 		LibraryID:     in.lib.ID,
+		LibraryRootID: libraryRootID(in.root),
+		RelativePath:  localRelativePath(in.path, in.root),
 		Title:         title,
 		Year:          year,
 		Path:          in.path,

internal/service/scanner_metadata_refresh.go

@@ -194,6 +194,12 @@ func localDerivedMetadataNeedsRefresh(existing existingLocalMedia, incoming *mod
 	if incoming == nil {
 		return false
 	}
+	if incoming.LibraryRootID != "" && incoming.LibraryRootID != existing.LibraryRootID {
+		return true
+	}
+	if incoming.RelativePath != "" && incoming.RelativePath != existing.RelativePath {
+		return true
+	}
 	return scanDerivedMetadataNeedsRefresh(scanDerivedMetadata{
 		Title:        existing.Title,
 		ScrapeStatus: existing.ScrapeStatus,

internal/service/scanner_prune.go

@@ -58,6 +58,52 @@ func (s *ScannerService) pruneMissingMedia(ctx context.Context, libraryID string
 	return s.deleteMediaByIDs(ctx, stale, false)
 }
 
+func (s *ScannerService) pruneMissingMediaForRoot(ctx context.Context, libraryID, rootID, rootPath string, seen map[string]struct{}) (int64, error) {
+	var rows []struct {
+		ID            string
+		Path          string
+		LibraryRootID string
+	}
+	q := s.repo.DB.WithContext(ctx).
+		Model(&model.Media{}).
+		Select("id, path, library_root_id").
+		Where("library_id = ? AND path NOT LIKE ?", libraryID, "cloud://%")
+	if strings.TrimSpace(rootID) != "" {
+		q = q.Where("library_root_id = ? OR library_root_id = '' OR library_root_id IS NULL", rootID)
+	}
+	if err := q.Find(&rows).Error; err != nil {
+		return 0, err
+	}
+	stale := make([]string, 0)
+	for _, row := range rows {
+		if row.Path == "" {
+			continue
+		}
+		if row.LibraryRootID == "" && !pathBelongsToRoot(row.Path, rootPath) {
+			continue
+		}
+		if _, ok := seen[filepath.Clean(row.Path)]; ok {
+			continue
+		}
+		if _, err := os.Stat(row.Path); err == nil {
+			continue
+		} else if !os.IsNotExist(err) {
+			continue
+		}
+		stale = append(stale, row.ID)
+	}
+	return s.deleteMediaByIDs(ctx, stale, false)
+}
+
+func pathBelongsToRoot(pathValue, rootPath string) bool {
+	pathValue = filepath.Clean(strings.TrimSpace(pathValue))
+	rootPath = filepath.Clean(strings.TrimSpace(rootPath))
+	if pathValue == "" || rootPath == "" || pathValue == "." || rootPath == "." {
+		return false
+	}
+	return strings.EqualFold(pathValue, rootPath) || pathWithin(pathValue, rootPath)
+}
+
 // deleteMediaByIDs removes media rows in fixed-size batches so each write
 // transaction stays short and the global write gate is released frequently.
 func (s *ScannerService) deleteMediaByIDs(ctx context.Context, ids []string, hard bool) (int64, error) {

internal/service/scanner_roots.go

@@ -0,0 +1,122 @@
+package service
+
+import (
+	"context"
+	"errors"
+	"path/filepath"
+	"strings"
+
+	"go.uber.org/zap"
+
+	"github.com/ShukeBta/MediaStationGo/internal/model"
+)
+
+func (s *ScannerService) localLibraryScanRoots(ctx context.Context, lib *model.Library) ([]model.LibraryRoot, error) {
+	if lib == nil {
+		return nil, errors.New("library not found")
+	}
+	roots := append([]model.LibraryRoot(nil), lib.Roots...)
+	if len(roots) == 0 && s != nil && s.repo != nil && s.repo.Library != nil {
+		var err error
+		roots, err = s.repo.Library.ListRoots(ctx, lib.ID)
+		if err != nil {
+			return nil, err
+		}
+	}
+	if len(roots) == 0 && strings.TrimSpace(lib.Path) != "" {
+		roots = []model.LibraryRoot{{
+			LibraryID: lib.ID,
+			Path:      lib.Path,
+			Enabled:   lib.Enabled,
+		}}
+	}
+	out := roots[:0]
+	for _, root := range roots {
+		if !root.Enabled || strings.TrimSpace(root.Path) == "" {
+			continue
+		}
+		if _, ok := ParseCloudLibraryMount(root.Path); ok {
+			continue
+		}
+		out = append(out, root)
+	}
+	return out, nil
+}
+
+func (s *ScannerService) localLibraryRootForPath(ctx context.Context, lib *model.Library, pathValue string) (*model.LibraryRoot, error) {
+	roots, err := s.localLibraryScanRoots(ctx, lib)
+	if err != nil {
+		return nil, err
+	}
+	cleanPath := filepath.Clean(strings.TrimSpace(pathValue))
+	for i := range roots {
+		rootPath := filepath.Clean(strings.TrimSpace(roots[i].Path))
+		if sameLibraryPath(cleanPath, rootPath) || pathWithin(cleanPath, rootPath) {
+			return &roots[i], nil
+		}
+	}
+	if len(roots) > 0 {
+		return &roots[0], nil
+	}
+	return nil, errors.New("library has no enabled paths")
+}
+
+func (s *ScannerService) resolveLocalLibraryRootPath(ctx context.Context, lib *model.Library, root *model.LibraryRoot) error {
+	if root == nil || strings.TrimSpace(root.Path) == "" {
+		return nil
+	}
+	resolved, err := resolveAccessibleLibraryPath(root.Path)
+	if err != nil {
+		return err
+	}
+	if sameLibraryPath(resolved, root.Path) {
+		root.Path = filepath.Clean(root.Path)
+		return nil
+	}
+	if s.repo != nil && s.repo.DB != nil && strings.TrimSpace(root.ID) != "" {
+		if updateErr := s.repo.DB.WithContext(ctx).Model(&model.LibraryRoot{}).Where("id = ?", root.ID).Update("path", resolved).Error; updateErr != nil && s.log != nil {
+			s.log.Warn("update mapped library root path failed",
+				zap.String("library_id", lib.ID),
+				zap.String("root_id", root.ID),
+				zap.String("from", root.Path),
+				zap.String("to", resolved),
+				zap.Error(updateErr))
+		}
+	}
+	if lib != nil {
+		if strings.TrimSpace(root.ID) == "" {
+			_ = s.repo.DB.WithContext(ctx).Model(&model.Library{}).Where("id = ?", lib.ID).Update("path", resolved).Error
+			lib.Path = resolved
+		} else if roots, err := s.repo.Library.ListRoots(ctx, lib.ID); err == nil && len(roots) > 0 && roots[0].ID == root.ID {
+			_ = s.repo.DB.WithContext(ctx).Model(&model.Library{}).Where("id = ?", lib.ID).Update("path", resolved).Error
+			lib.Path = resolved
+		}
+	}
+	if s.log != nil {
+		s.log.Info("mapped library root path for scan",
+			zap.String("library_id", lib.ID),
+			zap.String("root_id", root.ID),
+			zap.String("from", root.Path),
+			zap.String("to", resolved))
+	}
+	root.Path = resolved
+	return nil
+}
+
+func libraryRootID(root *model.LibraryRoot) string {
+	if root == nil {
+		return ""
+	}
+	return strings.TrimSpace(root.ID)
+}
+
+func localRelativePath(pathValue string, root *model.LibraryRoot) string {
+	if root == nil || strings.TrimSpace(root.Path) == "" || strings.TrimSpace(pathValue) == "" {
+		return ""
+	}
+	rel, err := filepath.Rel(filepath.Clean(root.Path), filepath.Clean(pathValue))
+	if err != nil || rel == "." || strings.HasPrefix(rel, "..") || filepath.IsAbs(rel) {
+		return ""
+	}
+	return rel
+}

internal/service/scanner_scan.go

@@ -19,6 +19,24 @@ func (s *ScannerService) ScanLibrary(ctx context.Context, libraryID string) (*Sc
 	return s.scanLibrary(ctx, libraryID, true)
 }
 
+func (s *ScannerService) ScanLibraryRoot(ctx context.Context, libraryID, rootID string) (*ScanResult, error) {
+	lib, err := s.repo.Library.FindByID(ctx, libraryID)
+	if err != nil {
+		return nil, err
+	}
+	if lib == nil {
+		return nil, errors.New("library not found")
+	}
+	root, err := s.repo.Library.FindRootByID(ctx, libraryID, rootID)
+	if err != nil {
+		return nil, err
+	}
+	if root == nil {
+		return nil, errors.New("library root not found")
+	}
+	return s.scanLocalLibraryRoot(ctx, lib, root, true)
+}
+
 // ScanLibraryWithoutAutoScrape walks a library without kicking off online
 // metadata enrichment. Cloud mounts can contain very large trees; keeping mount
 // scans import-only prevents scraper bursts from overwhelming small NAS boxes.
@@ -55,9 +73,6 @@ func (s *ScannerService) scanLibrary(ctx context.Context, libraryID string, auto
 	if mount, ok := ParseCloudLibraryMount(lib.Path); ok {
 		return s.scanMountedCloudLibrary(ctx, lib, mount, autoScrape)
 	}
-	if err := s.resolveLocalLibraryPath(ctx, lib); err != nil {
-		return &ScanResult{LibraryID: lib.ID}, err
-	}
 	res := &ScanResult{LibraryID: lib.ID}
 	writeBatch := newLocalMediaWriteBatch(s, ctx, res, 100)
 	existingMedia, err := s.existingLocalMediaSnapshot(ctx, lib.ID)
@@ -66,27 +81,85 @@ func (s *ScannerService) scanLibrary(ctx context.Context, libraryID string, auto
 		existingMedia = nil
 	}
 
-	seen, walkErr := s.scanLocalLibraryFiles(ctx, lib, existingMedia, writeBatch, res)
+	roots, err := s.localLibraryScanRoots(ctx, lib)
-	writeBatch.Flush()
-	if walkErr != nil {
-		addScanError(res, lib.Path, walkErr)
-		if res.Added+res.Updated > 0 {
-			s.invalidateMediaCache(ctx)
-		}
-		return res, walkErr
-	}
-	removed, err := s.pruneMissingMedia(ctx, lib.ID, seen)
 	if err != nil {
-		s.log.Warn("prune missing media failed", zap.String("library_id", lib.ID), zap.Error(err))
+		return res, err
+	}
+	if len(roots) == 0 {
+		return res, errors.New("library has no enabled paths")
+	}
+	var scanErr error
+	scannedRoots := 0
+	for i := range roots {
+		root := roots[i]
+		if err := s.resolveLocalLibraryRootPath(ctx, lib, &root); err != nil {
+			addScanError(res, root.Path, err)
+			s.log.Warn("library root scan skipped",
+				zap.String("library_id", lib.ID),
+				zap.String("root_id", root.ID),
+				zap.String("path", root.Path),
+				zap.Error(err))
+			if scanErr == nil {
+				scanErr = err
+			}
+			continue
+		}
+		seen, walkErr := s.scanLocalLibraryFiles(ctx, lib, &root, existingMedia, writeBatch, res)
+		if walkErr != nil {
+			addScanError(res, root.Path, walkErr)
+			if scanErr == nil {
+				scanErr = walkErr
+			}
+			continue
+		}
+		scannedRoots++
+		removed, err := s.pruneMissingMediaForRoot(ctx, lib.ID, root.ID, root.Path, seen)
+		if err != nil {
+			s.log.Warn("prune missing media failed", zap.String("library_id", lib.ID), zap.String("root_id", root.ID), zap.Error(err))
 		} else {
-		res.Removed = removed
+			res.Removed += removed
+		}
+	}
+	writeBatch.Flush()
+	if scanErr != nil && scannedRoots == 0 {
+		return res, scanErr
 	}
 
 	s.finishLocalLibraryScan(ctx, lib, res, autoScrape)
 	return res, nil
 }
 
-func (s *ScannerService) scanLocalLibraryFiles(ctx context.Context, lib *model.Library, existingMedia map[string]existingLocalMedia, writeBatch *localMediaWriteBatch, res *ScanResult) (map[string]struct{}, error) {
+func (s *ScannerService) scanLocalLibraryRoot(ctx context.Context, lib *model.Library, root *model.LibraryRoot, autoScrape bool) (*ScanResult, error) {
+	res := &ScanResult{LibraryID: lib.ID}
+	if root == nil || !root.Enabled {
+		return res, errors.New("library root disabled or not found")
+	}
+	if err := s.resolveLocalLibraryRootPath(ctx, lib, root); err != nil {
+		return res, err
+	}
+	writeBatch := newLocalMediaWriteBatch(s, ctx, res, 100)
+	existingMedia, err := s.existingLocalMediaSnapshot(ctx, lib.ID)
+	if err != nil {
+		s.log.Warn("load existing local media snapshot failed", zap.String("library_id", lib.ID), zap.Error(err))
+		existingMedia = nil
+	}
+	seen, walkErr := s.scanLocalLibraryFiles(ctx, lib, root, existingMedia, writeBatch, res)
+	writeBatch.Flush()
+	if walkErr != nil {
+		addScanError(res, root.Path, walkErr)
+		return res, walkErr
+	}
+	removed, err := s.pruneMissingMediaForRoot(ctx, lib.ID, root.ID, root.Path, seen)
+	if err != nil {
+		s.log.Warn("prune missing media failed", zap.String("library_id", lib.ID), zap.String("root_id", root.ID), zap.Error(err))
+	} else {
+		res.Removed = removed
+	}
+	s.finishLocalLibraryScan(ctx, lib, res, autoScrape)
+	return res, nil
+}
+
+func (s *ScannerService) scanLocalLibraryFiles(ctx context.Context, lib *model.Library, root *model.LibraryRoot, existingMedia map[string]existingLocalMedia, writeBatch *localMediaWriteBatch, res *ScanResult) (map[string]struct{}, error) {
 	seen := make(map[string]struct{})
 	seenInodes := existingLocalMediaFileIDs(existingMedia)
 	walkFn := func(path string, info walkInfo) error {
@@ -103,10 +176,10 @@ func (s *ScannerService) scanLocalLibraryFiles(ctx context.Context, lib *model.L
 			return nil
 		}
 		seen[filepath.Clean(path)] = struct{}{}
-		s.ingestFile(ctx, lib, path, info.size, seenInodes, existingMedia, writeBatch, res)
+		s.ingestFile(ctx, lib, root, path, info.size, seenInodes, existingMedia, writeBatch, res)
 		return nil
 	}
-	return seen, walk(lib.Path, walkFn)
+	return seen, walk(root.Path, walkFn)
 }
 
 func existingLocalMediaFileIDs(existingMedia map[string]existingLocalMedia) map[string]string {
@@ -234,7 +307,11 @@ func (s *ScannerService) IngestPath(ctx context.Context, libraryID, path string)
 	if err != nil || lib == nil {
 		return false, err
 	}
-	if err := s.resolveLocalLibraryPath(ctx, lib); err != nil {
+	root, err := s.localLibraryRootForPath(ctx, lib, path)
+	if err != nil || root == nil {
+		return false, err
+	}
+	if err := s.resolveLocalLibraryRootPath(ctx, lib, root); err != nil {
 		return false, err
 	}
 	fi, err := os.Stat(path)
@@ -246,7 +323,7 @@ func (s *ScannerService) IngestPath(ctx context.Context, libraryID, path string)
 		return false, nil
 	}
 	res := &ScanResult{LibraryID: lib.ID}
-	s.ingestFile(ctx, lib, path, fi.Size(), make(map[string]string), nil, nil, res)
+	s.ingestFile(ctx, lib, root, path, fi.Size(), make(map[string]string), nil, nil, res)
 	if res.Added+res.Updated > 0 {
 		s.invalidateMediaCache(ctx)
 	}

internal/service/watcher.go

@@ -22,6 +22,7 @@ import (
 	"github.com/fsnotify/fsnotify"
 	"go.uber.org/zap"
 
+	"github.com/ShukeBta/MediaStationGo/internal/model"
 	"github.com/ShukeBta/MediaStationGo/internal/repository"
 )
 
@@ -99,14 +100,23 @@ func (w *WatcherService) Refresh(ctx context.Context) error {
 		if !l.Enabled {
 			continue
 		}
-		if _, _, ok := parseCloudLibraryPath(l.Path); ok {
+		roots := l.Roots
+		if len(roots) == 0 && l.Path != "" {
+			roots = []model.LibraryRoot{{LibraryID: l.ID, Path: l.Path, Enabled: true}}
+		}
+		for _, root := range roots {
+			if !root.Enabled {
 				continue
 			}
-		watchRoot, info, err := resolveAccessibleMappedPath(l.Path)
+			if _, _, ok := parseCloudLibraryPath(root.Path); ok {
+				continue
+			}
+			watchRoot, info, err := resolveAccessibleMappedPath(root.Path)
 			if err != nil || !info.IsDir() {
 				w.log.Warn("watch path inaccessible",
-				zap.String("path", l.Path),
+					zap.String("path", root.Path),
 					zap.String("library_id", l.ID),
+					zap.String("root_id", root.ID),
 					zap.Error(err))
 				continue
 			}
@@ -114,6 +124,7 @@ func (w *WatcherService) Refresh(ctx context.Context) error {
 				current[dir] = l.ID
 			}
 		}
+	}
 	// Remove disappeared paths.
 	for path := range w.watched {
 		if _, ok := current[path]; !ok {

web/src/api/library.ts

@@ -1,5 +1,5 @@
 import { api, BATCH_REQUEST_TIMEOUT, LONG_REQUEST_TIMEOUT } from './client'
-import type { Library, Media, ScanResult } from '../types'
+import type { Library, LibraryRoot, Media, ScanResult } from '../types'
 import type { SeriesCard } from '../utils/groupSeries'
 
 export interface MediaPage {
@@ -23,6 +23,13 @@ export interface SeriesPage {
   page_size: number
 }
 
+export interface LibraryRootInput {
+  name?: string
+  path: string
+  enabled?: boolean
+  sort_order?: number
+}
+
 export interface ManualScrapeCandidate {
   source: string
   media_type?: string
@@ -83,11 +90,27 @@ export const libraryAPI = {
   create: (name: string, path: string, type: string) =>
     api.post<Library>('/libraries', { name, path, type }).then((r) => r.data),
 
+  createWithRoots: (name: string, type: string, roots: LibraryRootInput[]) =>
+    api.post<Library>('/libraries', { name, type, roots }).then((r) => r.data),
+
   remove: (id: string) => api.delete(`/libraries/${id}`).then((r) => r.data),
 
+  listRoots: (id: string) => api.get<LibraryRoot[]>(`/libraries/${id}/roots`).then((r) => r.data),
+
+  addRoot: (id: string, root: LibraryRootInput) =>
+    api.post<LibraryRoot>(`/libraries/${id}/roots`, root).then((r) => r.data),
+
+  updateRoot: (id: string, rootID: string, root: Partial<LibraryRootInput>) =>
+    api.patch<LibraryRoot>(`/libraries/${id}/roots/${rootID}`, root).then((r) => r.data),
+
+  removeRoot: (id: string, rootID: string) => api.delete(`/libraries/${id}/roots/${rootID}`).then((r) => r.data),
+
   scan: (id: string) =>
     api.post<ScanResult>(`/libraries/${id}/scan`, null, { timeout: BATCH_REQUEST_TIMEOUT }).then((r) => r.data),
 
+  scanRoot: (id: string, rootID: string) =>
+    api.post<ScanResult>(`/libraries/${id}/roots/${rootID}/scan`, null, { timeout: BATCH_REQUEST_TIMEOUT }).then((r) => r.data),
+
   scrape: (id: string, options?: ScrapeOptions) =>
     api.post(`/libraries/${id}/scrape`, options ?? null, { timeout: BATCH_REQUEST_TIMEOUT }).then((r) => r.data),
 

web/src/pages/AdminLibraryPanel.tsx

@@ -1,16 +1,22 @@
 import { FormEvent, useEffect, useState } from 'react'
 import toast from 'react-hot-toast'
-import { Trash2 } from 'lucide-react'
+import { Plus, RefreshCw, Save, Trash2 } from 'lucide-react'
 
-import { libraryAPI } from '../api/library'
+import { libraryAPI, type LibraryRootInput } from '../api/library'
-import type { Library } from '../types'
+import type { Library, LibraryRoot } from '../types'
 import { confirmAction } from '../components/confirmAction'
 
+type RootDraft = LibraryRootInput
+
+const emptyRootDraft = (): RootDraft => ({ name: '', path: '', enabled: true })
+
 export function AdminLibraryPanel() {
   const [libs, setLibs] = useState<Library[]>([])
   const [name, setName] = useState('')
-  const [path, setPath] = useState('')
+  const [roots, setRoots] = useState<RootDraft[]>([emptyRootDraft()])
   const [type, setType] = useState('movie')
+  const [newRootByLibrary, setNewRootByLibrary] = useState<Record<string, RootDraft>>({})
+  const [rootDrafts, setRootDrafts] = useState<Record<string, RootDraft>>({})
 
   const refresh = () => libraryAPI.list({ includeHidden: true }).then(setLibs)
   useEffect(() => {
@@ -20,10 +26,17 @@ export function AdminLibraryPanel() {
   const handleCreate = async (e: FormEvent) => {
     e.preventDefault()
     try {
-      await libraryAPI.create(name, path, type)
+      const payload = roots
+        .map((root, index) => ({ ...root, path: root.path.trim(), name: root.name?.trim(), sort_order: index }))
+        .filter((root) => root.path)
+      if (payload.length === 0) {
+        toast.error('请至少填写一个路径')
+        return
+      }
+      await libraryAPI.createWithRoots(name, type, payload)
       toast.success('媒体库已创建')
       setName('')
-      setPath('')
+      setRoots([emptyRootDraft()])
       await refresh()
     } catch (err: unknown) {
       const msg =
@@ -33,6 +46,72 @@ export function AdminLibraryPanel() {
     }
   }
 
+  const updateCreateRoot = (index: number, patch: Partial<RootDraft>) => {
+    setRoots((prev) => prev.map((root, i) => (i === index ? { ...root, ...patch } : root)))
+  }
+
+  const addCreateRoot = () => setRoots((prev) => [...prev, emptyRootDraft()])
+
+  const removeCreateRoot = (index: number) => {
+    setRoots((prev) => (prev.length <= 1 ? prev : prev.filter((_, i) => i !== index)))
+  }
+
+  const newRootDraft = (libraryID: string) => newRootByLibrary[libraryID] ?? emptyRootDraft()
+
+  const setNewRootDraft = (libraryID: string, patch: Partial<RootDraft>) => {
+    setNewRootByLibrary((prev) => ({ ...prev, [libraryID]: { ...newRootDraft(libraryID), ...patch } }))
+  }
+
+  const addLibraryRoot = async (libraryID: string) => {
+    const draft = newRootDraft(libraryID)
+    if (!draft.path?.trim()) {
+      toast.error('请填写路径')
+      return
+    }
+    await libraryAPI.addRoot(libraryID, { ...draft, path: draft.path.trim(), name: draft.name?.trim() })
+    setNewRootByLibrary((prev) => ({ ...prev, [libraryID]: emptyRootDraft() }))
+    toast.success('路径已添加')
+    await refresh()
+  }
+
+  const rootDraftKey = (libraryID: string, rootID: string) => `${libraryID}:${rootID}`
+
+  const editableRootDraft = (libraryID: string, root: LibraryRoot): RootDraft => {
+    const key = rootDraftKey(libraryID, root.id)
+    return rootDrafts[key] ?? {
+      name: root.name ?? '',
+      path: root.path,
+      enabled: root.enabled,
+      sort_order: root.sort_order,
+    }
+  }
+
+  const setEditableRootDraft = (libraryID: string, root: LibraryRoot, patch: Partial<RootDraft>) => {
+    const key = rootDraftKey(libraryID, root.id)
+    setRootDrafts((prev) => ({ ...prev, [key]: { ...editableRootDraft(libraryID, root), ...patch } }))
+  }
+
+  const saveLibraryRoot = async (libraryID: string, root: LibraryRoot) => {
+    const draft = editableRootDraft(libraryID, root)
+    if (!draft.path?.trim()) {
+      toast.error('请填写路径')
+      return
+    }
+    await libraryAPI.updateRoot(libraryID, root.id, {
+      name: draft.name?.trim(),
+      path: draft.path.trim(),
+      enabled: draft.enabled,
+      sort_order: draft.sort_order,
+    })
+    setRootDrafts((prev) => {
+      const next = { ...prev }
+      delete next[rootDraftKey(libraryID, root.id)]
+      return next
+    })
+    toast.success('路径已保存')
+    await refresh()
+  }
+
   return (
     <div className="space-y-6">
       <form onSubmit={handleCreate} className="glass-panel grid gap-3 md:grid-cols-4">
@@ -43,17 +122,6 @@ export function AdminLibraryPanel() {
           value={name}
           onChange={(e) => setName(e.target.value)}
         />
-        <input
-          required
-          className="input-base md:col-span-2"
-          placeholder="容器路径，如 /media/电视剧/国产剧"
-          value={path}
-          onChange={(e) => setPath(e.target.value)}
-        />
-        <p className="md:col-span-4 -mt-2 text-xs text-sand-500">
-          Docker 部署时请优先填写容器内路径，例如 /media/电影、/media/电视剧/国产剧；如果误填 NAS
-          宿主机路径，系统会尝试按 compose 挂载自动转换。
-        </p>
         <select className="input-base" value={type} onChange={(e) => setType(e.target.value)}>
           <option value="movie">电影</option>
           <option value="tv">电视剧</option>
@@ -61,6 +129,41 @@ export function AdminLibraryPanel() {
           <option value="anime">动漫</option>
           <option value="music">音乐</option>
         </select>
+        <div className="md:col-span-4 space-y-2">
+          {roots.map((root, index) => (
+            <div key={index} className="grid gap-2 md:grid-cols-[minmax(0,1fr)_minmax(0,2fr)_auto]">
+              <input
+                className="input-base"
+                placeholder="路径名称"
+                value={root.name ?? ''}
+                onChange={(e) => updateCreateRoot(index, { name: e.target.value })}
+              />
+              <input
+                required={index === 0}
+                className="input-base"
+                placeholder="容器路径，如 /media/电视剧/国产剧"
+                value={root.path}
+                onChange={(e) => updateCreateRoot(index, { path: e.target.value })}
+              />
+              <button
+                type="button"
+                className="rounded-lg border border-red-400/40 px-3 text-red-400 hover:bg-red-400/10 disabled:opacity-40"
+                disabled={roots.length <= 1}
+                onClick={() => removeCreateRoot(index)}
+                title="删除路径"
+              >
+                <Trash2 size={16} />
+              </button>
+            </div>
+          ))}
+          <button type="button" className="inline-flex items-center gap-2 rounded-lg border px-3 py-2 text-sm" onClick={addCreateRoot}>
+            <Plus size={16} /> 添加路径
+          </button>
+        </div>
+        <p className="md:col-span-4 -mt-2 text-xs text-sand-500">
+          Docker 部署时请优先填写容器内路径，例如 /media/电影、/media/电视剧/国产剧；如果误填 NAS
+          宿主机路径，系统会尝试按 compose 挂载自动转换。
+        </p>
         <button type="submit" className="neon-button md:col-span-4">
           新建媒体库
         </button>
@@ -80,7 +183,111 @@ export function AdminLibraryPanel() {
             {libs.map((l) => (
               <tr key={l.id} className="border-t border-gray-200">
                 <td className="py-2 text-ink-600">{l.name}</td>
-                <td className="text-ink-100">{l.path}</td>
+                <td className="text-ink-100">
+                  <div className="space-y-2">
+                    {(l.roots?.length
+                      ? l.roots
+                      : [{
+                          id: '',
+                          library_id: l.id,
+                          path: l.path,
+                          enabled: l.enabled,
+                          name: '',
+                          sort_order: 0,
+                          created_at: l.created_at,
+                          updated_at: l.updated_at,
+                        }]).map((root) => (
+                      <div key={root.id || root.path} className="rounded border border-gray-200/70 p-2">
+                        <div className="grid gap-2 xl:grid-cols-[minmax(120px,0.8fr)_minmax(220px,2fr)_auto]">
+                          {root.id ? (
+                            <>
+                              <input
+                                className="input-base"
+                                placeholder="路径名称"
+                                value={editableRootDraft(l.id, root).name ?? ''}
+                                onChange={(e) => setEditableRootDraft(l.id, root, { name: e.target.value })}
+                              />
+                              <input
+                                className="input-base"
+                                placeholder="真实路径"
+                                value={editableRootDraft(l.id, root).path}
+                                onChange={(e) => setEditableRootDraft(l.id, root, { path: e.target.value })}
+                              />
+                            </>
+                          ) : (
+                            <span className="min-w-0 break-all xl:col-span-2">{root.name ? `${root.name}：${root.path}` : root.path}</span>
+                          )}
+                          <div className="flex flex-wrap items-center gap-2">
+                            {root.id && (
+                              <button
+                                className="rounded border border-primary-400/40 p-1 text-brand-500 hover:bg-primary-400/10"
+                                title="保存路径"
+                                onClick={() => saveLibraryRoot(l.id, root)}
+                              >
+                                <Save size={14} />
+                              </button>
+                            )}
+                          <button
+                            className="rounded border border-primary-400/40 p-1 text-brand-500 hover:bg-primary-400/10"
+                            title="扫描路径"
+                            onClick={async () => {
+                              if (!root.id) return
+                              await libraryAPI.scanRoot(l.id, root.id)
+                              toast.success('路径扫描已加入后台任务')
+                            }}
+                          >
+                            <RefreshCw size={14} />
+                          </button>
+                          {root.id && (
+                            <button
+                              className="rounded border border-gray-300 px-2 py-1 text-xs"
+                              onClick={async () => {
+                                const enabled = !editableRootDraft(l.id, root).enabled
+                                setEditableRootDraft(l.id, root, { enabled })
+                                await libraryAPI.updateRoot(l.id, root.id, { enabled })
+                                await refresh()
+                              }}
+                            >
+                              {editableRootDraft(l.id, root).enabled ? '启用' : '禁用'}
+                            </button>
+                          )}
+                          {root.id && (
+                            <button
+                              className="rounded border border-red-400/40 p-1 text-red-400 hover:bg-red-400/10"
+                              title="删除路径"
+                              onClick={async () => {
+                                if (!(await confirmAction({ title: '删除媒体库路径', message: `确定删除「${root.path}」?`, confirmText: '删除' }))) return
+                                await libraryAPI.removeRoot(l.id, root.id)
+                                toast.success('路径已删除')
+                                await refresh()
+                              }}
+                            >
+                              <Trash2 size={14} />
+                            </button>
+                          )}
+                          </div>
+                        </div>
+                      </div>
+                    ))}
+                    <div className="grid gap-2 md:grid-cols-[minmax(0,1fr)_minmax(0,2fr)_auto]">
+                      <input
+                        className="input-base"
+                        placeholder="路径名称"
+                        value={newRootDraft(l.id).name ?? ''}
+                        onChange={(e) => setNewRootDraft(l.id, { name: e.target.value })}
+                      />
+                      <input
+                        className="input-base"
+                        placeholder="新增路径"
+                        value={newRootDraft(l.id).path}
+                        onChange={(e) => setNewRootDraft(l.id, { path: e.target.value })}
+                      />
+                      <button className="rounded-lg border px-3 py-2 text-sm" onClick={() => addLibraryRoot(l.id)}>
+                        <Plus size={14} />
+                      </button>
+                    </div>
+                  </div>
+                </td>
                 <td className="text-ink-100">{l.type}</td>
                 <td className="space-x-2 py-2 text-right">
                   <button

web/src/pages/AutoOrganizeSettingsTabs.tsx

@@ -97,6 +97,7 @@ export function AutoOrganizeBasicTab({
         <BooleanSetting config={config} settingKey="afterDownload" label="qB 下载完成后自动整理" onConfigChange={onConfigChange} />
         <BooleanSetting config={config} settingKey="downloadSmartClassify" label="下载器智能分类" onConfigChange={onConfigChange} />
         <BooleanSetting config={config} settingKey="smartClassify" label="智能分类到子库" onConfigChange={onConfigChange} />
+        <BooleanSetting config={config} settingKey="autoAddLibrary" label="自动注册目的地媒体库" onConfigChange={onConfigChange} />
         <BooleanSetting config={config} settingKey="keepSeeding" label="保种" onConfigChange={onConfigChange} />
       </div>
     </>

web/src/pages/autoOrganizeModel.ts

@@ -6,6 +6,7 @@ export type AutoOrganizeConfig = {
   scrapeAfter: string
   downloadSmartClassify: string
   smartClassify: string
+  autoAddLibrary: string
   sourceDir: string
   targetDir: string
   transferMode: string
@@ -27,6 +28,7 @@ export const AUTO_ORGANIZE_DEFAULTS: AutoOrganizeConfig = {
   scrapeAfter: 'true',
   downloadSmartClassify: 'true',
   smartClassify: 'true',
+  autoAddLibrary: 'true',
   sourceDir: '',
   targetDir: '',
   transferMode: 'hardlink',
@@ -48,6 +50,7 @@ export const AUTO_ORGANIZE_KEYS: Record<keyof AutoOrganizeConfig, string> = {
   scrapeAfter: 'organize.scrape_after',
   downloadSmartClassify: 'downloads.smart_classify',
   smartClassify: 'organizer.smart_classify',
+  autoAddLibrary: 'organize.auto_add_library',
   sourceDir: 'organize.source_dir',
   targetDir: 'organize.target_dir',
   transferMode: 'organize.transfer_mode',
@@ -73,6 +76,7 @@ export function mergeAutoOrganizeSettings(rows: Setting[]): AutoOrganizeConfig {
     scrapeAfter: idx[AUTO_ORGANIZE_KEYS.scrapeAfter] ?? AUTO_ORGANIZE_DEFAULTS.scrapeAfter,
     downloadSmartClassify: idx[AUTO_ORGANIZE_KEYS.downloadSmartClassify] ?? AUTO_ORGANIZE_DEFAULTS.downloadSmartClassify,
     smartClassify: idx[AUTO_ORGANIZE_KEYS.smartClassify] ?? AUTO_ORGANIZE_DEFAULTS.smartClassify,
+    autoAddLibrary: idx[AUTO_ORGANIZE_KEYS.autoAddLibrary] ?? AUTO_ORGANIZE_DEFAULTS.autoAddLibrary,
     sourceDir: idx[AUTO_ORGANIZE_KEYS.sourceDir] ?? AUTO_ORGANIZE_DEFAULTS.sourceDir,
     targetDir: idx[AUTO_ORGANIZE_KEYS.targetDir] ?? AUTO_ORGANIZE_DEFAULTS.targetDir,
     transferMode: idx[AUTO_ORGANIZE_KEYS.transferMode] ?? AUTO_ORGANIZE_DEFAULTS.transferMode,

web/src/types/index.ts

@@ -95,12 +95,24 @@ export interface LoginResponse {
 }
 
 // Library
+export interface LibraryRoot {
+  id: string
+  library_id: string
+  name?: string
+  path: string
+  enabled: boolean
+  sort_order: number
+  created_at: string
+  updated_at: string
+}
+
 export interface Library {
   id: string
   name: string
   path: string
   type: string
   enabled: boolean
+  roots?: LibraryRoot[]
   created_at: string
   updated_at: string
 }
@@ -108,6 +120,7 @@ export interface Library {
 export interface Media {
   id: string
   library_id: string
+  library_root_id?: string
   library_name?: string
   library_path?: string
   display_library_id?: string
@@ -118,6 +131,7 @@ export interface Media {
   original_name?: string
   episode_title?: string
   path: string
+  relative_path?: string
   size_bytes: number
   duration_sec: number
   width: number