256 lines
7.8 KiB
Go
256 lines
7.8 KiB
Go
package app
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import (
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"encoding/json"
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"errors"
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"strings"
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"time"
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"unicode/utf8"
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"infinite-canvas/backend/internal/model"
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"infinite-canvas/backend/internal/repository"
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"gorm.io/gorm"
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)
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type UserAssetPage struct {
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Assets []json.RawMessage `json:"assets"`
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KindCounts map[string]int64 `json:"kindCounts"`
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CategoryCounts map[string]int64 `json:"categoryCounts"`
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FolderCounts map[string]int64 `json:"folderCounts"`
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Page int `json:"page"`
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PageSize int `json:"pageSize"`
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Total int64 `json:"total"`
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HasMore bool `json:"hasMore"`
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}
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type UserAssetPageFilter struct {
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Kind string
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Category string
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FolderID *string
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Uncategorized bool
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Status string
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Query string
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}
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type CreateAssetFolderRequest struct {
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Name string `json:"name"`
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}
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type UpdateAssetFolderRequest struct {
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Name string `json:"name"`
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}
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type MoveUserAssetsRequest struct {
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AssetIDs []string `json:"assetIds"`
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FolderID string `json:"folderId"`
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}
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func (s *Service) UserAssetsPage(userID string, page int, pageSize int, filter UserAssetPageFilter) (UserAssetPage, error) {
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page, pageSize = normalizeProjectPage(page, pageSize, 120)
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repoFilter := repository.UserAssetPageFilter{
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Kind: filter.Kind, Category: filter.Category, FolderID: filter.FolderID,
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Uncategorized: filter.Uncategorized, Status: filter.Status, Query: filter.Query,
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}
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assets, total, err := s.repo.UserAssetsPage(userID, page, pageSize, repoFilter)
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if err != nil {
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return UserAssetPage{}, err
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}
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rawAssets := make([]json.RawMessage, 0, len(assets))
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for _, asset := range assets {
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payload := clientAssetListPayload(asset)
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if len(payload) == 0 {
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continue
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}
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if asset.Kind == "entity" && asset.Category == model.AssetCategoryCharacter {
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payload = s.characterAssetListPayload(userID, asset, payload)
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}
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rawAssets = append(rawAssets, payload)
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}
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kindRows, categoryRows, folderRows, err := s.repo.UserAssetFacets(userID, filter.Status)
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if err != nil {
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return UserAssetPage{}, err
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}
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return UserAssetPage{
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Assets: rawAssets, KindCounts: assetFacetMap(kindRows), CategoryCounts: assetFacetMap(categoryRows), FolderCounts: assetFacetMap(folderRows),
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Page: page, PageSize: pageSize, Total: total, HasMore: int64(page*pageSize) < total,
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}, nil
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}
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// characterAssetListPayload 给素材库里的角色卡补上当前版本的形象与声音。
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// 角色资产的 payload 只存设定，形象/声音在版本表里；不补的话列表卡片和档案只能显示空图标。
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// 只下发 resource: 存储键，展示时由前端换取授权地址，不经后端中转字节。
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func (s *Service) characterAssetListPayload(userID string, asset model.Asset, raw json.RawMessage) json.RawMessage {
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card, err := s.characterCard(userID, &asset)
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if err != nil {
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return raw
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}
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var payload map[string]any
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if err := json.Unmarshal(raw, &payload); err != nil || payload == nil {
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return raw
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}
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data, _ := payload["data"].(map[string]any)
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if data == nil {
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data = map[string]any{}
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}
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data["definition"] = card.Definition
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data["version"] = card.Version
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data["visualStatus"], data["voiceStatus"] = card.VisualStatus, card.VoiceStatus
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if cover := characterCoverResourceID(card); cover != "" {
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data["coverStorageKey"] = "resource:" + cover
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}
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if card.Voice != nil {
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data["voiceName"] = card.Voice.Profile.Name
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if card.Voice.Profile.SampleResourceID != "" {
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data["voiceSampleStorageKey"] = "resource:" + card.Voice.Profile.SampleResourceID
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}
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}
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payload["data"] = data
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encoded, err := json.Marshal(payload)
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if err != nil {
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return raw
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}
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return encoded
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}
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func characterCoverResourceID(card CharacterCardSummary) string {
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for _, role := range []string{"turnaround_sheet", "primary", "front"} {
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for _, representation := range card.Representations {
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if representation.Role == role && representation.ResourceID != "" {
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return representation.ResourceID
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}
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}
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}
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return ""
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}
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func assetFacetMap(rows []repository.UserAssetFacetRow) map[string]int64 {
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result := make(map[string]int64, len(rows))
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for _, row := range rows {
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result[row.Key] = row.Count
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}
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return result
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}
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func (s *Service) AssetFolders(userID string) ([]model.AssetFolder, error) {
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return s.repo.AssetFolders(userID)
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}
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func (s *Service) CreateAssetFolder(userID string, req CreateAssetFolderRequest) (model.AssetFolder, error) {
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name, nameKey, err := normalizeAssetFolderName(req.Name)
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if err != nil {
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return model.AssetFolder{}, err
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}
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exists, err := s.repo.AssetFolderNameExists(userID, nameKey, "")
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if err != nil {
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return model.AssetFolder{}, err
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}
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if exists {
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return model.AssetFolder{}, BadAuthRequest("已存在同名素材分类")
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}
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position, err := s.repo.NextAssetFolderPosition(userID)
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if err != nil {
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return model.AssetFolder{}, err
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}
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now := time.Now().UTC()
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folder := model.AssetFolder{ID: newID(), UserID: userID, Name: name, NameKey: nameKey, Position: position, CreatedAt: now, UpdatedAt: now}
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if err := s.repo.CreateAssetFolder(&folder); err != nil {
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return model.AssetFolder{}, err
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}
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return folder, nil
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}
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func (s *Service) UpdateAssetFolder(userID string, folderID string, req UpdateAssetFolderRequest) (model.AssetFolder, error) {
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folder, err := s.repo.AssetFolderForUser(userID, strings.TrimSpace(folderID))
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return model.AssetFolder{}, BadAuthRequest("素材分类不存在")
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}
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return model.AssetFolder{}, err
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}
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name, nameKey, err := normalizeAssetFolderName(req.Name)
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if err != nil {
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return model.AssetFolder{}, err
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}
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exists, err := s.repo.AssetFolderNameExists(userID, nameKey, folder.ID)
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if err != nil {
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return model.AssetFolder{}, err
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}
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if exists {
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return model.AssetFolder{}, BadAuthRequest("已存在同名素材分类")
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}
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folder.Name = name
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folder.NameKey = nameKey
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folder.UpdatedAt = time.Now().UTC()
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if err := s.repo.UpdateAssetFolder(folder); err != nil {
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return model.AssetFolder{}, err
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}
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return *folder, nil
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}
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func (s *Service) DeleteAssetFolder(userID string, folderID string) error {
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s.storageMu.Lock()
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defer s.storageMu.Unlock()
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err := s.repo.DeleteAssetFolder(userID, strings.TrimSpace(folderID))
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return BadAuthRequest("素材分类不存在")
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}
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return err
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}
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func (s *Service) MoveUserAssetsToFolder(userID string, req MoveUserAssetsRequest) error {
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ids := uniqueNonemptyStrings(req.AssetIDs)
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if len(ids) == 0 {
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return BadAuthRequest("请选择要移动的素材")
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}
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if len(ids) > 200 {
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return BadAuthRequest("一次最多移动 200 个素材")
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}
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s.storageMu.Lock()
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defer s.storageMu.Unlock()
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folderID := strings.TrimSpace(req.FolderID)
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if folderID != "" {
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if _, err := s.repo.AssetFolderForUser(userID, folderID); err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return BadAuthRequest("目标素材分类不存在")
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}
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return err
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}
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}
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if err := s.repo.MoveUserAssetsToFolder(userID, ids, folderID); err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return BadAuthRequest("部分素材不存在或不属于当前用户")
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}
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return err
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}
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return nil
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}
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func normalizeAssetFolderName(value string) (string, string, error) {
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name := strings.TrimSpace(value)
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if name == "" {
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return "", "", BadAuthRequest("请输入素材分类名称")
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}
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if utf8.RuneCountInString(name) > 40 {
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return "", "", BadAuthRequest("素材分类名称不能超过 40 个字符")
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}
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return name, strings.ToLower(name), nil
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}
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func uniqueNonemptyStrings(values []string) []string {
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seen := make(map[string]struct{}, len(values))
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result := make([]string, 0, len(values))
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for _, value := range values {
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value = strings.TrimSpace(value)
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if value == "" {
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continue
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}
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if _, exists := seen[value]; exists {
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continue
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}
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seen[value] = struct{}{}
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result = append(result, value)
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}
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return result
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}
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