73 lines
2 KiB
Go
73 lines
2 KiB
Go
package services
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import (
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"context"
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"github.com/patbritton/sojorn-backend/internal/models"
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"github.com/patbritton/sojorn-backend/internal/repository"
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)
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type FeedService struct {
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postRepo *repository.PostRepository
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assetService *AssetService
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}
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func NewFeedService(postRepo *repository.PostRepository, assetService *AssetService) *FeedService {
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return &FeedService{
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postRepo: postRepo,
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assetService: assetService,
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}
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}
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func (s *FeedService) GetFeed(ctx context.Context, userID string, categorySlug string, hasVideo bool, limit int, offset int, showNSFW bool) ([]models.Post, error) {
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posts, err := s.postRepo.GetFeed(ctx, userID, categorySlug, hasVideo, limit, offset, showNSFW)
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if err != nil {
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return nil, err
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}
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// Sign URLs for initial posts
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for i := range posts {
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if posts[i].ImageURL != nil {
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signed := s.assetService.SignImageURL(*posts[i].ImageURL)
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posts[i].ImageURL = &signed
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}
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if posts[i].VideoURL != nil {
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signed := s.assetService.SignVideoURL(*posts[i].VideoURL)
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posts[i].VideoURL = &signed
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}
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if posts[i].ThumbnailURL != nil {
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signed := s.assetService.SignImageURL(*posts[i].ThumbnailURL)
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posts[i].ThumbnailURL = &signed
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}
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}
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// Ads Injection at index 4 matching legacy Deno implementation
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if len(posts) >= 4 {
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ad, err := s.postRepo.GetRandomSponsoredPost(ctx, userID)
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if err == nil && ad != nil {
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// Sign Ad URL
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if ad.ImageURL != nil {
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signed := s.assetService.SignImageURL(*ad.ImageURL)
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ad.ImageURL = &signed
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}
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if ad.VideoURL != nil {
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signed := s.assetService.SignVideoURL(*ad.VideoURL)
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ad.VideoURL = &signed
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}
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if ad.ThumbnailURL != nil {
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signed := s.assetService.SignImageURL(*ad.ThumbnailURL)
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ad.ThumbnailURL = &signed
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}
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// Insert at index 4
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newPosts := make([]models.Post, 0, len(posts)+1)
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newPosts = append(newPosts, posts[:4]...)
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newPosts = append(newPosts, *ad)
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newPosts = append(newPosts, posts[4:]...)
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posts = newPosts
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}
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}
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return posts, nil
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}
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