629 lines
17 KiB
Go
629 lines
17 KiB
Go
package services
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import (
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"context"
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"errors"
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"quyun/v2/app/errorx"
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content_dto "quyun/v2/app/http/v1/dto"
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user_dto "quyun/v2/app/http/v1/dto"
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"quyun/v2/app/requests"
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"quyun/v2/database/models"
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"quyun/v2/pkg/consts"
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"github.com/spf13/cast"
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"gorm.io/gorm"
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)
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// @provider
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type content struct{}
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func (s *content) List(ctx context.Context, filter *content_dto.ContentListFilter) (*requests.Pager, error) {
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tbl, q := models.ContentQuery.QueryContext(ctx)
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// Filters
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q = q.Where(tbl.Status.Eq(consts.ContentStatusPublished))
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if filter.Keyword != nil && *filter.Keyword != "" {
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keyword := "%" + *filter.Keyword + "%"
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q = q.Where(tbl.Title.Like(keyword)).Or(tbl.Description.Like(keyword))
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}
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if filter.Genre != nil && *filter.Genre != "" {
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q = q.Where(tbl.Genre.Eq(*filter.Genre))
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}
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if filter.TenantID != nil && *filter.TenantID != "" {
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tid := cast.ToInt64(*filter.TenantID)
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q = q.Where(tbl.TenantID.Eq(tid))
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}
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if filter.IsPinned != nil {
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q = q.Where(tbl.IsPinned.Is(*filter.IsPinned))
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}
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// Sort
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sort := "latest"
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if filter.Sort != nil && *filter.Sort != "" {
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sort = *filter.Sort
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}
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switch sort {
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case "hot":
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q = q.Order(tbl.Views.Desc())
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case "price_asc":
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q = q.Order(tbl.ID.Desc())
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default: // latest
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q = q.Order(tbl.PublishedAt.Desc())
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}
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// Pagination
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filter.Pagination.Format()
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total, err := q.Count()
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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// Use UnderlyingDB for complex preloads
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var list []*models.Content
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err = q.Offset(int(filter.Pagination.Offset())).Limit(int(filter.Pagination.Limit)).
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UnderlyingDB().
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Preload("Author").
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Preload("ContentAssets.Asset").
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Find(&list).Error
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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// Fetch Prices
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priceMap := make(map[int64]float64)
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if len(list) > 0 {
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ids := make([]int64, len(list))
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for i, item := range list {
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ids[i] = item.ID
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}
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pTbl, pQ := models.ContentPriceQuery.QueryContext(ctx)
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prices, _ := pQ.Where(pTbl.ContentID.In(ids...)).Find()
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for _, p := range prices {
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priceMap[p.ContentID] = float64(p.PriceAmount) / 100.0
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}
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}
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// Convert to DTO
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data := make([]content_dto.ContentItem, len(list))
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for i, item := range list {
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data[i] = s.toContentItemDTO(item, priceMap[item.ID])
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}
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return &requests.Pager{
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Pagination: filter.Pagination,
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Total: total,
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Items: data,
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}, nil
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}
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func (s *content) Get(ctx context.Context, userID int64, id string) (*content_dto.ContentDetail, error) {
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cid := cast.ToInt64(id)
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// Increment Views
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_, _ = models.ContentQuery.WithContext(ctx).
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Where(models.ContentQuery.ID.Eq(cid)).
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UpdateSimple(models.ContentQuery.Views.Add(1))
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_, q := models.ContentQuery.QueryContext(ctx)
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var item models.Content
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err := q.UnderlyingDB().
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Preload("Author").
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Preload("ContentAssets", func(db *gorm.DB) *gorm.DB {
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return db.Order("sort ASC")
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}).
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Preload("ContentAssets.Asset").
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Where("id = ?", cid).
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First(&item).Error
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, errorx.ErrRecordNotFound
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}
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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// Fetch Price
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var price float64
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cp, err := models.ContentPriceQuery.WithContext(ctx).Where(models.ContentPriceQuery.ContentID.Eq(cid)).First()
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if err == nil {
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price = float64(cp.PriceAmount) / 100.0
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}
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// Interaction & Access status
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isLiked := false
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isFavorited := false
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hasAccess := false
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if userID > 0 {
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uid := userID
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// Interaction
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isLiked, _ = models.UserContentActionQuery.WithContext(ctx).
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Where(models.UserContentActionQuery.UserID.Eq(uid),
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models.UserContentActionQuery.ContentID.Eq(cid),
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models.UserContentActionQuery.Type.Eq("like")).
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Exists()
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isFavorited, _ = models.UserContentActionQuery.WithContext(ctx).
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Where(models.UserContentActionQuery.UserID.Eq(uid),
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models.UserContentActionQuery.ContentID.Eq(cid),
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models.UserContentActionQuery.Type.Eq("favorite")).
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Exists()
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// Access Check
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if item.UserID == uid {
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hasAccess = true // Owner
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} else {
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// Check Purchase
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exists, _ := models.ContentAccessQuery.WithContext(ctx).
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Where(models.ContentAccessQuery.UserID.Eq(uid),
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models.ContentAccessQuery.ContentID.Eq(cid),
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models.ContentAccessQuery.Status.Eq(consts.ContentAccessStatusActive)).
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Exists()
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if exists {
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hasAccess = true
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}
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}
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}
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// Filter Assets based on Access
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var accessibleAssets []*models.ContentAsset
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for _, ca := range item.ContentAssets {
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if hasAccess {
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accessibleAssets = append(accessibleAssets, ca)
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} else {
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// If no access, only allow Preview and Cover
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if ca.Role == consts.ContentAssetRolePreview || ca.Role == consts.ContentAssetRoleCover {
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accessibleAssets = append(accessibleAssets, ca)
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}
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}
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}
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detail := &content_dto.ContentDetail{
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ContentItem: s.toContentItemDTO(&item, price),
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Description: item.Description,
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Body: item.Body,
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MediaUrls: s.toMediaURLs(accessibleAssets),
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Meta: content_dto.Meta{Key: item.Key},
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IsLiked: isLiked,
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IsFavorited: isFavorited,
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}
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// Pass IsPurchased/HasAccess info to frontend?
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detail.ContentItem.IsPurchased = hasAccess // Update DTO field logic if needed. IsPurchased usually means "Bought". Owner implies access but not necessarily purchased. But for UI "Play" button, IsPurchased=true is fine.
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return detail, nil
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}
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func (s *content) ListComments(ctx context.Context, userID int64, id string, page int) (*requests.Pager, error) {
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cid := cast.ToInt64(id)
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tbl, q := models.CommentQuery.QueryContext(ctx)
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q = q.Where(tbl.ContentID.Eq(cid)).Preload(tbl.User)
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q = q.Order(tbl.CreatedAt.Desc())
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p := requests.Pagination{Page: int64(page), Limit: 10}
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total, err := q.Count()
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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list, err := q.Offset(int(p.Offset())).Limit(int(p.Limit)).Find()
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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// User likes
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likedMap := make(map[int64]bool)
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if userID > 0 {
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uid := userID
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ids := make([]int64, len(list))
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for i, v := range list {
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ids[i] = v.ID
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}
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likes, _ := models.UserCommentActionQuery.WithContext(ctx).
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Where(models.UserCommentActionQuery.UserID.Eq(uid),
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models.UserCommentActionQuery.CommentID.In(ids...),
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models.UserCommentActionQuery.Type.Eq("like")).
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Find()
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for _, l := range likes {
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likedMap[l.CommentID] = true
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}
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}
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data := make([]content_dto.Comment, len(list))
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for i, v := range list {
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data[i] = content_dto.Comment{
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ID: cast.ToString(v.ID),
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Content: v.Content,
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UserID: cast.ToString(v.UserID),
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UserNickname: v.User.Nickname,
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UserAvatar: v.User.Avatar,
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CreateTime: v.CreatedAt.Format("2006-01-02 15:04:05"),
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Likes: int(v.Likes),
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ReplyTo: cast.ToString(v.ReplyTo),
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IsLiked: likedMap[v.ID],
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}
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}
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return &requests.Pager{
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Pagination: requests.Pagination{Page: p.Page, Limit: p.Limit},
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Total: total,
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Items: data,
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}, nil
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}
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func (s *content) CreateComment(
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ctx context.Context,
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userID int64,
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id string,
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form *content_dto.CommentCreateForm,
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) error {
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if userID == 0 {
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return errorx.ErrUnauthorized
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}
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uid := userID
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cid := cast.ToInt64(id)
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c, err := models.ContentQuery.WithContext(ctx).Where(models.ContentQuery.ID.Eq(cid)).First()
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if err != nil {
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return errorx.ErrRecordNotFound
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}
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comment := &models.Comment{
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TenantID: c.TenantID,
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UserID: uid,
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ContentID: cid,
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Content: form.Content,
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ReplyTo: cast.ToInt64(form.ReplyTo),
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}
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if err := models.CommentQuery.WithContext(ctx).Create(comment); err != nil {
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return errorx.ErrDatabaseError.WithCause(err)
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}
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return nil
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}
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func (s *content) LikeComment(ctx context.Context, userID int64, id string) error {
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if userID == 0 {
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return errorx.ErrUnauthorized
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}
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uid := userID
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cmid := cast.ToInt64(id)
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// Fetch comment for author
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cm, err := models.CommentQuery.WithContext(ctx).Where(models.CommentQuery.ID.Eq(cmid)).First()
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if err != nil {
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return errorx.ErrRecordNotFound
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}
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err = models.Q.Transaction(func(tx *models.Query) error {
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exists, _ := tx.UserCommentAction.WithContext(ctx).
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Where(tx.UserCommentAction.UserID.Eq(uid), tx.UserCommentAction.CommentID.Eq(cmid), tx.UserCommentAction.Type.Eq("like")).
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Exists()
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if exists {
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return nil
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}
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action := &models.UserCommentAction{UserID: uid, CommentID: cmid, Type: "like"}
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if err := tx.UserCommentAction.WithContext(ctx).Create(action); err != nil {
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return err
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}
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_, err := tx.Comment.WithContext(ctx).Where(tx.Comment.ID.Eq(cmid)).UpdateSimple(tx.Comment.Likes.Add(1))
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return err
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})
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if err != nil {
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return err
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}
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if Notification != nil {
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_ = Notification.Send(ctx, cm.UserID, "interaction", "评论点赞", "有人点赞了您的评论")
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}
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return nil
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}
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func (s *content) GetLibrary(ctx context.Context, userID int64) ([]user_dto.ContentItem, error) {
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if userID == 0 {
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return nil, errorx.ErrUnauthorized
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}
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uid := userID
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tbl, q := models.ContentAccessQuery.QueryContext(ctx)
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accessList, err := q.Where(tbl.UserID.Eq(uid), tbl.Status.Eq(consts.ContentAccessStatusActive)).Find()
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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if len(accessList) == 0 {
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return []user_dto.ContentItem{}, nil
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}
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var contentIDs []int64
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for _, a := range accessList {
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contentIDs = append(contentIDs, a.ContentID)
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}
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ctbl, cq := models.ContentQuery.QueryContext(ctx)
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var list []*models.Content
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err = cq.Where(ctbl.ID.In(contentIDs...)).
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UnderlyingDB().
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Preload("Author").
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Preload("ContentAssets.Asset").
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Find(&list).Error
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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var data []user_dto.ContentItem
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for _, item := range list {
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dto := s.toContentItemDTO(item, 0)
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dto.IsPurchased = true
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data = append(data, dto)
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}
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return data, nil
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}
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func (s *content) GetFavorites(ctx context.Context, userID int64) ([]user_dto.ContentItem, error) {
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return s.getInteractList(ctx, userID, "favorite")
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}
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func (s *content) AddFavorite(ctx context.Context, userID int64, contentId string) error {
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return s.addInteract(ctx, userID, contentId, "favorite")
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}
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func (s *content) RemoveFavorite(ctx context.Context, userID int64, contentId string) error {
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return s.removeInteract(ctx, userID, contentId, "favorite")
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}
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func (s *content) GetLikes(ctx context.Context, userID int64) ([]user_dto.ContentItem, error) {
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return s.getInteractList(ctx, userID, "like")
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}
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func (s *content) AddLike(ctx context.Context, userID int64, contentId string) error {
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return s.addInteract(ctx, userID, contentId, "like")
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}
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func (s *content) RemoveLike(ctx context.Context, userID int64, contentId string) error {
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return s.removeInteract(ctx, userID, contentId, "like")
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}
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func (s *content) ListTopics(ctx context.Context) ([]content_dto.Topic, error) {
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var results []struct {
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Genre string
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Count int
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}
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err := models.ContentQuery.WithContext(ctx).UnderlyingDB().
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Model(&models.Content{}).
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Where("status = ?", consts.ContentStatusPublished).
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Select("genre, count(*) as count").
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Group("genre").
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Scan(&results).Error
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if err != nil {
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return nil, errorx.ErrDatabaseError.WithCause(err)
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}
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var topics []content_dto.Topic
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for i, r := range results {
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if r.Genre == "" {
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continue
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}
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// Fetch latest content in this genre to get a cover
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var c models.Content
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models.ContentQuery.WithContext(ctx).
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Where(models.ContentQuery.Genre.Eq(r.Genre), models.ContentQuery.Status.Eq(consts.ContentStatusPublished)).
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Order(models.ContentQuery.PublishedAt.Desc()).
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UnderlyingDB().
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Preload("ContentAssets").
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Preload("ContentAssets.Asset").
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First(&c)
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cover := ""
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for _, ca := range c.ContentAssets {
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if (ca.Role == consts.ContentAssetRoleCover || ca.Role == consts.ContentAssetRoleMain) && ca.Asset != nil {
|
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cover = Common.GetAssetURL(ca.Asset.ObjectKey)
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if ca.Role == consts.ContentAssetRoleCover {
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break // Prefer cover
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}
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}
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}
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topics = append(topics, content_dto.Topic{
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ID: cast.ToString(i + 1), // Use index as ID for aggregation results
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Title: r.Genre,
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Tag: r.Genre,
|
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Count: r.Count,
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Cover: cover,
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})
|
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}
|
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return topics, nil
|
|
}
|
|
|
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// Helpers
|
|
|
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func (s *content) toContentItemDTO(item *models.Content, price float64) content_dto.ContentItem {
|
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dto := content_dto.ContentItem{
|
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ID: cast.ToString(item.ID),
|
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Title: item.Title,
|
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Genre: item.Genre,
|
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AuthorID: cast.ToString(item.UserID),
|
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Views: int(item.Views),
|
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Likes: int(item.Likes),
|
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Price: price,
|
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}
|
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if item.Author != nil {
|
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dto.AuthorName = item.Author.Nickname
|
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dto.AuthorAvatar = item.Author.Avatar
|
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}
|
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|
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// Determine Type and Cover from assets
|
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var hasVideo, hasAudio bool
|
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for _, asset := range item.ContentAssets {
|
|
if asset.Asset == nil {
|
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continue
|
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}
|
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// Cover
|
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if asset.Role == consts.ContentAssetRoleCover {
|
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dto.Cover = Common.GetAssetURL(asset.Asset.ObjectKey)
|
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}
|
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// Type detection
|
|
switch asset.Asset.Type {
|
|
case consts.MediaAssetTypeVideo:
|
|
hasVideo = true
|
|
case consts.MediaAssetTypeAudio:
|
|
hasAudio = true
|
|
}
|
|
}
|
|
|
|
// Fallback for cover if not explicitly set as cover role (take first image or whatever)
|
|
if dto.Cover == "" && len(item.ContentAssets) > 0 {
|
|
for _, asset := range item.ContentAssets {
|
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if asset.Asset != nil && asset.Asset.Type == consts.MediaAssetTypeImage {
|
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dto.Cover = Common.GetAssetURL(asset.Asset.ObjectKey)
|
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break
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}
|
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}
|
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}
|
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|
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if hasVideo {
|
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dto.Type = "video"
|
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} else if hasAudio {
|
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dto.Type = "audio"
|
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} else {
|
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dto.Type = "article"
|
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}
|
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|
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return dto
|
|
}
|
|
|
|
func (s *content) toMediaURLs(assets []*models.ContentAsset) []content_dto.MediaURL {
|
|
var urls []content_dto.MediaURL
|
|
for _, ca := range assets {
|
|
if ca.Asset != nil {
|
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url := Common.GetAssetURL(ca.Asset.ObjectKey)
|
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urls = append(urls, content_dto.MediaURL{
|
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Type: string(ca.Asset.Type),
|
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URL: url,
|
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})
|
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}
|
|
}
|
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return urls
|
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}
|
|
|
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func (s *content) addInteract(ctx context.Context, userID int64, contentId, typ string) error {
|
|
if userID == 0 {
|
|
return errorx.ErrUnauthorized
|
|
}
|
|
uid := userID
|
|
cid := cast.ToInt64(contentId)
|
|
|
|
// Fetch content for author
|
|
c, err := models.ContentQuery.WithContext(ctx).
|
|
Where(models.ContentQuery.ID.Eq(cid)).
|
|
Select(models.ContentQuery.UserID, models.ContentQuery.Title).
|
|
First()
|
|
if err != nil {
|
|
return errorx.ErrRecordNotFound
|
|
}
|
|
|
|
err = models.Q.Transaction(func(tx *models.Query) error {
|
|
exists, _ := tx.UserContentAction.WithContext(ctx).
|
|
Where(tx.UserContentAction.UserID.Eq(uid), tx.UserContentAction.ContentID.Eq(cid), tx.UserContentAction.Type.Eq(typ)).
|
|
Exists()
|
|
if exists {
|
|
return nil
|
|
}
|
|
|
|
action := &models.UserContentAction{UserID: uid, ContentID: cid, Type: typ}
|
|
if err := tx.UserContentAction.WithContext(ctx).Create(action); err != nil {
|
|
return err
|
|
}
|
|
|
|
if typ == "like" {
|
|
_, err := tx.Content.WithContext(ctx).Where(tx.Content.ID.Eq(cid)).UpdateSimple(tx.Content.Likes.Add(1))
|
|
return err
|
|
}
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if Notification != nil {
|
|
actionName := "互动"
|
|
switch typ {
|
|
case "like":
|
|
actionName = "点赞"
|
|
case "favorite":
|
|
actionName = "收藏"
|
|
}
|
|
_ = Notification.Send(ctx, c.UserID, "interaction", "新的"+actionName, "有人"+actionName+"了您的作品: "+c.Title)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (s *content) removeInteract(ctx context.Context, userID int64, contentId, typ string) error {
|
|
if userID == 0 {
|
|
return errorx.ErrUnauthorized
|
|
}
|
|
uid := userID
|
|
cid := cast.ToInt64(contentId)
|
|
|
|
return models.Q.Transaction(func(tx *models.Query) error {
|
|
res, err := tx.UserContentAction.WithContext(ctx).
|
|
Where(tx.UserContentAction.UserID.Eq(uid), tx.UserContentAction.ContentID.Eq(cid), tx.UserContentAction.Type.Eq(typ)).
|
|
Delete()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if res.RowsAffected == 0 {
|
|
return nil
|
|
}
|
|
|
|
if typ == "like" {
|
|
_, err := tx.Content.WithContext(ctx).Where(tx.Content.ID.Eq(cid)).UpdateSimple(tx.Content.Likes.Sub(1))
|
|
return err
|
|
}
|
|
return nil
|
|
})
|
|
}
|
|
|
|
func (s *content) getInteractList(ctx context.Context, userID int64, typ string) ([]user_dto.ContentItem, error) {
|
|
if userID == 0 {
|
|
return nil, errorx.ErrUnauthorized
|
|
}
|
|
uid := userID
|
|
|
|
tbl, q := models.UserContentActionQuery.QueryContext(ctx)
|
|
actions, err := q.Where(tbl.UserID.Eq(uid), tbl.Type.Eq(typ)).Find()
|
|
if err != nil {
|
|
return nil, errorx.ErrDatabaseError.WithCause(err)
|
|
}
|
|
|
|
if len(actions) == 0 {
|
|
return []user_dto.ContentItem{}, nil
|
|
}
|
|
|
|
var contentIDs []int64
|
|
for _, a := range actions {
|
|
contentIDs = append(contentIDs, a.ContentID)
|
|
}
|
|
|
|
ctbl, cq := models.ContentQuery.QueryContext(ctx)
|
|
var list []*models.Content
|
|
err = cq.Where(ctbl.ID.In(contentIDs...)).
|
|
UnderlyingDB().
|
|
Preload("Author").
|
|
Preload("ContentAssets.Asset").
|
|
Find(&list).Error
|
|
if err != nil {
|
|
return nil, errorx.ErrDatabaseError.WithCause(err)
|
|
}
|
|
|
|
var data []user_dto.ContentItem
|
|
for _, item := range list {
|
|
data = append(data, s.toContentItemDTO(item, 0))
|
|
}
|
|
return data, nil
|
|
}
|