Rogee
2cc823d3a8
- Added MediaAssetVariant enum with values 'main' and 'preview'. - Updated media asset service logic to utilize MediaAssetVariant for variant handling. - Refactored database models and queries to include variant and source_asset_id fields. - Enhanced validation for asset variants in upload and processing functions. - Updated Swagger documentation to reflect new variant structure and descriptions. - Implemented necessary database migrations to support the new variant constraints.
610 lines
17 KiB
Go
610 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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"time"
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"quyun/v2/app/errorx"
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"quyun/v2/app/http/tenant/dto"
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"quyun/v2/app/requests"
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"quyun/v2/database"
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"quyun/v2/database/models"
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"quyun/v2/pkg/consts"
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pkgerrors "github.com/pkg/errors"
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"github.com/samber/lo"
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log "github.com/sirupsen/logrus"
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"go.ipao.vip/gen"
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"gorm.io/gorm"
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)
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// content 实现内容域相关的业务能力（创建/更新/定价/授权等）。
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//
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// @provider
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type content struct{}
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// ContentDetailResult 为内容详情的内部结果（供 controller 组合返回）。
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type ContentDetailResult struct {
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// Content 内容实体。
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Content *models.Content
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// Price 定价信息（可能为 nil，表示未设置价格）。
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Price *models.ContentPrice
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// HasAccess 当前用户是否拥有主资源访问权限。
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HasAccess bool
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}
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func requiredMediaAssetVariantForRole(role consts.ContentAssetRole) consts.MediaAssetVariant {
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switch role {
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case consts.ContentAssetRolePreview:
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return consts.MediaAssetVariantPreview
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default:
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// main/cover 一律要求 main 产物，避免误把 preview 绑定成正片/封面。
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return consts.MediaAssetVariantMain
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}
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}
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func (s *content) Create(ctx context.Context, tenantID, userID int64, form *dto.ContentCreateForm) (*models.Content, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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}).Info("services.content.create")
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// 关键默认值：未传可见性时默认“租户内可见”。
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visibility := form.Visibility
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if visibility == "" {
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visibility = consts.ContentVisibilityTenantOnly
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}
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// 试看策略：默认固定时长；并强制不允许下载。
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previewSeconds := consts.DefaultContentPreviewSeconds
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if form.PreviewSeconds != nil && *form.PreviewSeconds > 0 {
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previewSeconds = *form.PreviewSeconds
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}
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m := &models.Content{
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TenantID: tenantID,
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UserID: userID,
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Title: form.Title,
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Description: form.Description,
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Status: consts.ContentStatusDraft,
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Visibility: visibility,
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PreviewSeconds: previewSeconds,
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PreviewDownloadable: false,
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}
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if err := m.Create(ctx); err != nil {
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return nil, pkgerrors.Wrap(err, "create content failed")
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}
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return m, nil
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}
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func (s *content) Update(ctx context.Context, tenantID, userID, contentID int64, form *dto.ContentUpdateForm) (*models.Content, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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"content_id": contentID,
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}).Info("services.content.update")
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tbl, query := models.ContentQuery.QueryContext(ctx)
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m, err := query.Where(
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tbl.TenantID.Eq(tenantID),
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tbl.ID.Eq(contentID),
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).First()
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if err != nil {
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return nil, pkgerrors.Wrap(err, "content not found")
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}
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if form.Title != nil {
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m.Title = *form.Title
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}
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if form.Description != nil {
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m.Description = *form.Description
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}
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if form.Visibility != nil {
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m.Visibility = *form.Visibility
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}
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if form.PreviewSeconds != nil && *form.PreviewSeconds > 0 {
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m.PreviewSeconds = *form.PreviewSeconds
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m.PreviewDownloadable = false
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}
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if form.Status != nil {
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m.Status = *form.Status
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// 发布动作：首次发布时补齐发布时间，便于后续排序/检索与审计。
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if m.Status == consts.ContentStatusPublished && m.PublishedAt.IsZero() {
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m.PublishedAt = time.Now()
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}
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}
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if _, err := m.Update(ctx); err != nil {
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return nil, pkgerrors.Wrap(err, "update content failed")
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}
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return m, nil
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}
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func (s *content) UpsertPrice(ctx context.Context, tenantID, userID, contentID int64, form *dto.ContentPriceUpsertForm) (*models.ContentPrice, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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"content_id": contentID,
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"amount": form.PriceAmount,
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}).Info("services.content.upsert_price")
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currency := form.Currency
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if currency == "" {
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currency = consts.CurrencyCNY
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}
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discountType := form.DiscountType
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if discountType == "" {
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discountType = consts.DiscountTypeNone
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}
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startAt := time.Time{}
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if form.DiscountStartAt != nil {
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startAt = *form.DiscountStartAt
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}
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endAt := time.Time{}
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if form.DiscountEndAt != nil {
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endAt = *form.DiscountEndAt
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}
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tbl, query := models.ContentPriceQuery.QueryContext(ctx)
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m, err := query.Where(
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tbl.TenantID.Eq(tenantID),
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tbl.ContentID.Eq(contentID),
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).First()
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if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, pkgerrors.Wrap(err, "find content price failed")
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}
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if errors.Is(err, gorm.ErrRecordNotFound) {
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m = &models.ContentPrice{
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TenantID: tenantID,
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UserID: userID,
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ContentID: contentID,
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Currency: currency,
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PriceAmount: form.PriceAmount,
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DiscountType: discountType,
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DiscountValue: form.DiscountValue,
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DiscountStartAt: startAt,
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DiscountEndAt: endAt,
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}
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if err := m.Create(ctx); err != nil {
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return nil, pkgerrors.Wrap(err, "create content price failed")
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}
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return m, nil
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}
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m.UserID = userID
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m.Currency = currency
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m.PriceAmount = form.PriceAmount
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m.DiscountType = discountType
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m.DiscountValue = form.DiscountValue
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m.DiscountStartAt = startAt
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m.DiscountEndAt = endAt
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if _, err := m.Update(ctx); err != nil {
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return nil, pkgerrors.Wrap(err, "update content price failed")
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}
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return m, nil
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}
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func (s *content) AttachAsset(ctx context.Context, tenantID, userID, contentID, assetID int64, role consts.ContentAssetRole, sort int32, now time.Time) (*models.ContentAsset, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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"content_id": contentID,
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"asset_id": assetID,
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"role": role,
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"sort": sort,
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}).Info("services.content.attach_asset")
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// 约束：只能绑定本租户内、且已处理完成（ready）的资源；避免未完成处理的资源对外可见。
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tblContent, queryContent := models.ContentQuery.QueryContext(ctx)
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if _, err := queryContent.Where(
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tblContent.TenantID.Eq(tenantID),
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tblContent.ID.Eq(contentID),
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).First(); err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return nil, errorx.ErrRecordNotFound.WithMsg("content not found")
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}
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return nil, err
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}
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tblAsset, queryAsset := models.MediaAssetQuery.QueryContext(ctx)
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asset, err := queryAsset.Where(
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tblAsset.TenantID.Eq(tenantID),
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tblAsset.ID.Eq(assetID),
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tblAsset.DeletedAt.IsNull(),
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).First()
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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.WithMsg("media asset not found")
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}
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return nil, err
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}
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if asset.Status != consts.MediaAssetStatusReady {
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return nil, errorx.ErrPreconditionFailed.WithMsg("media asset not ready")
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}
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// C2 规则：preview 必须绑定独立产物（media_assets.variant=preview），main/cover 必须为 main。
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variant := asset.Variant
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if variant == "" {
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variant = consts.MediaAssetVariantMain
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}
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requiredVariant := requiredMediaAssetVariantForRole(role)
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if variant != requiredVariant {
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return nil, errorx.ErrPreconditionFailed.WithMsg("media asset variant mismatch")
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}
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// 关联规则：preview 产物必须声明来源 main；main/cover 不允许带来源。
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if role == consts.ContentAssetRolePreview {
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if asset.SourceAssetID <= 0 {
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return nil, errorx.ErrPreconditionFailed.WithMsg("preview asset must have source_asset_id")
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}
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src, err := queryAsset.Where(
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tblAsset.TenantID.Eq(tenantID),
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tblAsset.ID.Eq(asset.SourceAssetID),
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tblAsset.DeletedAt.IsNull(),
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).First()
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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.WithMsg("preview source asset not found")
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}
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return nil, err
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}
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srcVariant := src.Variant
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if srcVariant == "" {
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srcVariant = consts.MediaAssetVariantMain
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}
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if srcVariant != consts.MediaAssetVariantMain {
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return nil, errorx.ErrPreconditionFailed.WithMsg("preview source asset must be main variant")
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}
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} else {
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if asset.SourceAssetID > 0 {
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return nil, errorx.ErrPreconditionFailed.WithMsg("main/cover asset must not have source_asset_id")
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}
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}
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m := &models.ContentAsset{
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TenantID: tenantID,
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UserID: userID,
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ContentID: contentID,
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AssetID: assetID,
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Role: role,
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Sort: sort,
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CreatedAt: now,
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UpdatedAt: now,
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}
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if err := m.Create(ctx); err != nil {
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return nil, pkgerrors.Wrap(err, "attach content asset failed")
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}
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return m, nil
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}
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func (s *content) ListPublished(ctx context.Context, tenantID, userID int64, filter *dto.ContentListFilter) (*requests.Pager, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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"page": filter.Page,
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"limit": filter.Limit,
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}).Info("services.content.list_published")
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tbl, query := models.ContentQuery.QueryContext(ctx)
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conds := []gen.Condition{
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tbl.TenantID.Eq(tenantID),
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tbl.Status.Eq(consts.ContentStatusPublished),
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tbl.Visibility.In(consts.ContentVisibilityPublic, consts.ContentVisibilityTenantOnly),
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}
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if filter.Keyword != nil && *filter.Keyword != "" {
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conds = append(conds, tbl.Title.Like(database.WrapLike(*filter.Keyword)))
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}
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filter.Pagination.Format()
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items, total, err := query.Where(conds...).Order(tbl.ID.Desc()).FindByPage(int(filter.Offset()), int(filter.Limit))
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if err != nil {
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return nil, err
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}
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contentIDs := lo.Map(items, func(item *models.Content, _ int) int64 { return item.ID })
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priceByContent, err := s.contentPriceMapping(ctx, tenantID, contentIDs)
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if err != nil {
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return nil, err
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}
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accessSet, err := s.accessSet(ctx, tenantID, userID, contentIDs)
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if err != nil {
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return nil, err
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}
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respItems := lo.Map(items, func(model *models.Content, _ int) *dto.ContentItem {
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price := priceByContent[model.ID]
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free := price == nil || price.PriceAmount == 0
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has := free || accessSet[model.ID] || model.UserID == userID
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return &dto.ContentItem{
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Content: model,
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Price: price,
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HasAccess: has,
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}
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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: respItems,
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}, nil
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}
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// ListPublicPublished 返回“公开可见”的已发布内容列表（给游客/非成员使用）。
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// 规则：仅返回 published + visibility=public；tenant_only/private 永不通过公开接口暴露。
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func (s *content) ListPublicPublished(ctx context.Context, tenantID, viewerUserID int64, filter *dto.ContentListFilter) (*requests.Pager, error) {
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if filter == nil {
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filter = &dto.ContentListFilter{}
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}
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": viewerUserID,
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"page": filter.Page,
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"limit": filter.Limit,
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}).Info("services.content.list_public_published")
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tbl, query := models.ContentQuery.QueryContext(ctx)
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conds := []gen.Condition{
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tbl.TenantID.Eq(tenantID),
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tbl.Status.Eq(consts.ContentStatusPublished),
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tbl.Visibility.Eq(consts.ContentVisibilityPublic),
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tbl.DeletedAt.IsNull(),
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}
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if filter.Keyword != nil && *filter.Keyword != "" {
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conds = append(conds, tbl.Title.Like(database.WrapLike(*filter.Keyword)))
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}
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filter.Pagination.Format()
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items, total, err := query.Where(conds...).Order(tbl.ID.Desc()).FindByPage(int(filter.Offset()), int(filter.Limit))
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if err != nil {
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return nil, err
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}
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contentIDs := lo.Map(items, func(item *models.Content, _ int) int64 { return item.ID })
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priceByContent, err := s.contentPriceMapping(ctx, tenantID, contentIDs)
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if err != nil {
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return nil, err
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}
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accessSet := map[int64]bool{}
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if viewerUserID > 0 {
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m, err := s.accessSet(ctx, tenantID, viewerUserID, contentIDs)
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if err != nil {
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return nil, err
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}
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accessSet = m
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}
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respItems := lo.Map(items, func(model *models.Content, _ int) *dto.ContentItem {
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price := priceByContent[model.ID]
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free := price == nil || price.PriceAmount == 0
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has := free || accessSet[model.ID] || model.UserID == viewerUserID
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return &dto.ContentItem{
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Content: model,
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Price: price,
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HasAccess: has,
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}
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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: respItems,
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}, nil
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}
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// PublicDetail 返回“公开可见”的内容详情（给游客/非成员使用）。
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// 规则：仅允许 published + visibility=public；否则统一返回 not found，避免信息泄露。
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func (s *content) PublicDetail(ctx context.Context, tenantID, viewerUserID, contentID int64) (*ContentDetailResult, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": viewerUserID,
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"content_id": contentID,
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}).Info("services.content.public_detail")
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tbl, query := models.ContentQuery.QueryContext(ctx)
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model, err := query.Where(
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tbl.TenantID.Eq(tenantID),
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tbl.ID.Eq(contentID),
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tbl.DeletedAt.IsNull(),
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).First()
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if err != nil {
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return nil, errorx.ErrRecordNotFound.WithMsg("content not found")
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}
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// Public endpoints only expose published + public contents.
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if model.Status != consts.ContentStatusPublished || model.Visibility != consts.ContentVisibilityPublic {
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return nil, errorx.ErrRecordNotFound.WithMsg("content not found")
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}
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price, err := s.contentPrice(ctx, tenantID, contentID)
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if err != nil {
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return nil, err
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}
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free := price == nil || price.PriceAmount == 0
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hasAccess := model.UserID == viewerUserID || free
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if !hasAccess && viewerUserID > 0 {
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ok, err := s.HasAccess(ctx, tenantID, viewerUserID, contentID)
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if err != nil {
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return nil, err
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}
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hasAccess = ok
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}
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return &ContentDetailResult{
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Content: model,
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Price: price,
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HasAccess: hasAccess,
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}, nil
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}
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func (s *content) Detail(ctx context.Context, tenantID, userID, contentID int64) (*ContentDetailResult, error) {
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log.WithFields(log.Fields{
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"tenant_id": tenantID,
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"user_id": userID,
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"content_id": contentID,
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}).Info("services.content.detail")
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tbl, query := models.ContentQuery.QueryContext(ctx)
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model, err := query.Where(
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tbl.TenantID.Eq(tenantID),
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tbl.ID.Eq(contentID),
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).First()
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if err != nil {
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return nil, pkgerrors.Wrapf(err, "content not found, tenantID=%d, contentID=%d", tenantID, contentID)
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}
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if model.Status != consts.ContentStatusPublished && model.UserID != userID {
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return nil, errors.New("content is not published")
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}
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price, err := s.contentPrice(ctx, tenantID, contentID)
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if err != nil {
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return nil, err
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}
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free := price == nil || price.PriceAmount == 0
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canView := false
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switch model.Visibility {
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case consts.ContentVisibilityPublic, consts.ContentVisibilityTenantOnly:
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canView = true
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case consts.ContentVisibilityPrivate:
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canView = model.UserID == userID
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default:
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canView = false
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}
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hasAccess := model.UserID == userID || free
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if !hasAccess {
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ok, err := s.HasAccess(ctx, tenantID, userID, contentID)
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if err != nil {
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return nil, err
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}
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hasAccess = ok
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canView = canView || ok
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}
|
||
|
||
if !canView {
|
||
return nil, errors.New("content is private")
|
||
}
|
||
|
||
return &ContentDetailResult{
|
||
Content: model,
|
||
Price: price,
|
||
HasAccess: hasAccess,
|
||
}, nil
|
||
}
|
||
|
||
func (s *content) HasAccess(ctx context.Context, tenantID, userID, contentID int64) (bool, error) {
|
||
log.WithFields(log.Fields{
|
||
"tenant_id": tenantID,
|
||
"user_id": userID,
|
||
"content_id": contentID,
|
||
}).Info("services.content.has_access")
|
||
|
||
tbl, query := models.ContentAccessQuery.QueryContext(ctx)
|
||
_, err := query.Where(
|
||
tbl.TenantID.Eq(tenantID),
|
||
tbl.UserID.Eq(userID),
|
||
tbl.ContentID.Eq(contentID),
|
||
tbl.Status.Eq(consts.ContentAccessStatusActive),
|
||
).First()
|
||
if err != nil {
|
||
return false, nil
|
||
}
|
||
return true, nil
|
||
}
|
||
|
||
func (s *content) AssetsByRole(ctx context.Context, tenantID, contentID int64, role consts.ContentAssetRole) ([]*models.MediaAsset, error) {
|
||
log.WithFields(log.Fields{
|
||
"tenant_id": tenantID,
|
||
"content_id": contentID,
|
||
"role": role,
|
||
}).Info("services.content.assets_by_role")
|
||
|
||
maTbl, maQuery := models.MediaAssetQuery.QueryContext(ctx)
|
||
caTbl, _ := models.ContentAssetQuery.QueryContext(ctx)
|
||
|
||
assets, err := maQuery.
|
||
LeftJoin(caTbl, caTbl.AssetID.EqCol(maTbl.ID)).
|
||
Select(maTbl.ALL).
|
||
Where(
|
||
maTbl.TenantID.Eq(tenantID),
|
||
maTbl.DeletedAt.IsNull(),
|
||
maTbl.Status.Eq(consts.MediaAssetStatusReady),
|
||
caTbl.TenantID.Eq(tenantID),
|
||
caTbl.ContentID.Eq(contentID),
|
||
caTbl.Role.Eq(role),
|
||
).
|
||
Order(caTbl.Sort.Asc()).
|
||
Find()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return assets, nil
|
||
}
|
||
|
||
func (s *content) contentPrice(ctx context.Context, tenantID, contentID int64) (*models.ContentPrice, error) {
|
||
tbl, query := models.ContentPriceQuery.QueryContext(ctx)
|
||
m, err := query.Where(
|
||
tbl.TenantID.Eq(tenantID),
|
||
tbl.ContentID.Eq(contentID),
|
||
).First()
|
||
if err != nil {
|
||
if errors.Is(err, gorm.ErrRecordNotFound) {
|
||
return nil, nil
|
||
}
|
||
return nil, err
|
||
}
|
||
return m, nil
|
||
}
|
||
|
||
func (s *content) contentPriceMapping(ctx context.Context, tenantID int64, contentIDs []int64) (map[int64]*models.ContentPrice, error) {
|
||
if len(contentIDs) == 0 {
|
||
return map[int64]*models.ContentPrice{}, nil
|
||
}
|
||
|
||
tbl, query := models.ContentPriceQuery.QueryContext(ctx)
|
||
items, err := query.Where(
|
||
tbl.TenantID.Eq(tenantID),
|
||
tbl.ContentID.In(contentIDs...),
|
||
).Find()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
return lo.SliceToMap(items, func(item *models.ContentPrice) (int64, *models.ContentPrice) {
|
||
return item.ContentID, item
|
||
}), nil
|
||
}
|
||
|
||
func (s *content) accessSet(ctx context.Context, tenantID, userID int64, contentIDs []int64) (map[int64]bool, error) {
|
||
if len(contentIDs) == 0 {
|
||
return map[int64]bool{}, nil
|
||
}
|
||
|
||
tbl, query := models.ContentAccessQuery.QueryContext(ctx)
|
||
items, err := query.Where(
|
||
tbl.TenantID.Eq(tenantID),
|
||
tbl.UserID.Eq(userID),
|
||
tbl.ContentID.In(contentIDs...),
|
||
tbl.Status.Eq(consts.ContentAccessStatusActive),
|
||
).Find()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
out := make(map[int64]bool, len(items))
|
||
for _, item := range items {
|
||
out[item.ContentID] = true
|
||
}
|
||
return out, nil
|
||
}
|