mirror of
https://github.com/truewhile/MeBox.git
synced 2026-10-10 23:36:37 +08:00
refactor: split modules and harden scraping workflows
This commit is contained in:
ShukeBta
@@ -0,0 +1,246 @@
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package service
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import (
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"context"
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"errors"
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"fmt"
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"strings"
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"time"
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"go.uber.org/zap"
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"github.com/ShukeBta/MediaStationGo/internal/model"
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)
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func (s *SubscriptionService) runSiteSearch(ctx context.Context, sub *model.Subscription) (int, error) {
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if s.site == nil {
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if s.log != nil {
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s.log.Warn("site-search subscription service unavailable", subscriptionSiteSearchLogFields(sub, "")...)
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}
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return 0, errors.New("site search service unavailable")
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}
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keywords := siteSearchKeywords(sub)
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keyword := ""
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if len(keywords) > 0 {
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keyword = keywords[0]
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}
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if keyword == "" {
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if s.log != nil {
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s.log.Warn("site-search subscription keyword missing", subscriptionSiteSearchLogFields(sub, "")...)
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}
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return 0, errors.New("site-search subscription keyword required")
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}
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if s.log != nil {
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s.log.Info("site-search subscription run started", subscriptionSiteSearchLogFields(sub, keyword)...)
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}
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var (
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results []SearchResult
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lastSearchErr error
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searchErrors int
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)
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for _, searchKeyword := range keywords {
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found, err := s.site.Search(ctx, searchKeyword)
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if err != nil {
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lastSearchErr = err
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searchErrors++
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, searchKeyword)
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fields = append(fields, zap.Error(err))
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s.log.Warn("site-search subscription search failed", fields...)
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}
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continue
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}
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results = append(results, found...)
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}
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results = dedupeSiteSearchResults(results)
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if len(results) == 0 && lastSearchErr != nil && searchErrors == len(keywords) {
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return 0, lastSearchErr
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}
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if len(results) == 0 {
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = append(fields, zap.Int("results_count", 0))
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s.log.Info("site-search subscription no results", fields...)
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}
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now := time.Now()
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_ = s.repo.DB.Model(sub).Updates(map[string]any{"last_run_at": &now}).Error
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return 0, nil
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}
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s.updateSubscriptionTotalEpisodes(ctx, sub, s.resolveSubscriptionTotalEpisodes(ctx, sub, inferSearchTotalEpisodes(results, sub)))
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guidKey := fmt.Sprintf("subscription.%s.seen", sub.ID)
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seenRaw, _ := s.repo.Setting.Get(ctx, guidKey)
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seen := splitNonEmpty(seenRaw)
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seenSet := make(map[string]struct{}, len(seen))
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for _, g := range seen {
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seenSet[g] = struct{}{}
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}
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availability := mergeLocalAvailability(
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SubscriptionLocalAvailability(ctx, s.repo, sub),
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s.pendingDownloadAvailability(ctx, sub),
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)
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candidates, selectionStats := selectSiteSearchCandidatesWithStats(results, sub, seenSet, availability)
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = appendSiteSearchSelectionLogFields(fields, selectionStats)
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fields = appendAvailabilityLogFields(fields, availability)
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s.log.Info("site-search subscription selection summary", fields...)
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}
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var lastEnqueueErr error
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queued := 0
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var resources []string
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for _, candidate := range candidates {
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item := candidate.Item
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matchText := subscriptionSearchResultText(item)
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mediaType, mediaCategory := s.classifySubscriptionItem(ctx, sub, matchText, item.Category)
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if s.shouldSkipExistingTorrent(ctx, mediaType, candidate) {
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addSiteSearchCandidateAvailability(candidate, &availability)
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seen = append(seen, candidate.GUID)
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seenSet[candidate.GUID] = struct{}{}
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = append(fields,
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zap.String("reason", "existing_torrent"),
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zap.String("title", item.Title),
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zap.String("subtitle", item.Subtitle),
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zap.String("site", firstNonEmpty(item.SiteName, item.SiteID)),
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zap.String("site_category", item.Category),
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zap.Int("season", candidate.Season),
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zap.Int("episode", candidate.Episode),
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zap.Bool("pack", candidate.Pack),
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zap.String("media_type", mediaType),
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)
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s.log.Info("site-search subscription candidate skipped", fields...)
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}
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continue
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}
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realURL := s.site.ResolveDownloadURL(ctx, candidate.Download)
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savePath := s.resolveSubscriptionSavePath(ctx, sub, mediaType, mediaCategory)
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if s.downloadPathHasCandidate(ctx, sub, matchText, savePath) {
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addSiteSearchCandidateAvailability(candidate, &availability)
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seen = append(seen, candidate.GUID)
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seenSet[candidate.GUID] = struct{}{}
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = append(fields,
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zap.String("reason", "download_path_has_candidate"),
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zap.String("title", item.Title),
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zap.String("subtitle", item.Subtitle),
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zap.String("site", firstNonEmpty(item.SiteName, item.SiteID)),
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zap.String("site_category", item.Category),
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zap.Int("season", candidate.Season),
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zap.Int("episode", candidate.Episode),
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zap.Bool("pack", candidate.Pack),
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zap.String("media_type", mediaType),
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zap.String("media_category", mediaCategory),
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zap.String("save_path", savePath),
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)
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s.log.Info("site-search subscription candidate skipped", fields...)
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}
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continue
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}
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if _, err := s.downloads.AddDownloadWithMeta(ctx, sub.UserID, realURL, savePath, DownloadTaskMeta{
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SubscriptionID: sub.ID,
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Title: firstNonEmpty(item.Title, sub.Name),
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PosterURL: sub.PosterURL,
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BackdropURL: sub.BackdropURL,
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Overview: sub.Overview,
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MediaType: mediaType,
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MediaCategory: mediaCategory,
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SourceCategory: item.Category,
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AllowExistingLibrary: sub.WashEnabled,
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}); err != nil {
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if IsDownloadDedupError(err) {
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addSiteSearchCandidateAvailability(candidate, &availability)
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seen = append(seen, candidate.GUID)
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seenSet[candidate.GUID] = struct{}{}
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = append(fields,
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zap.String("reason", "download_dedup"),
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zap.String("title", item.Title),
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zap.String("subtitle", item.Subtitle),
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zap.String("site", firstNonEmpty(item.SiteName, item.SiteID)),
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zap.String("site_category", item.Category),
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zap.Int("season", candidate.Season),
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zap.Int("episode", candidate.Episode),
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zap.Bool("pack", candidate.Pack),
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zap.String("media_type", mediaType),
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zap.String("media_category", mediaCategory),
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zap.String("save_path", savePath),
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)
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s.log.Info("site-search subscription candidate skipped", fields...)
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}
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continue
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}
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lastEnqueueErr = err
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s.log.Warn("site-search subscription enqueue failed",
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zap.String("subscription_id", sub.ID),
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zap.String("subscription", sub.Name),
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zap.String("keyword", keyword),
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zap.String("title", item.Title),
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zap.String("subtitle", item.Subtitle),
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zap.String("site", firstNonEmpty(item.SiteName, item.SiteID)),
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zap.String("site_category", item.Category),
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zap.String("media_type", mediaType),
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zap.String("media_category", mediaCategory),
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zap.String("save_path", savePath),
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zap.Error(err))
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continue
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}
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queued++
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addSiteSearchCandidateAvailability(candidate, &availability)
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resources = append(resources, item.Title)
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seen = append(seen, candidate.GUID)
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seenSet[candidate.GUID] = struct{}{}
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = append(fields,
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zap.String("title", item.Title),
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zap.String("subtitle", item.Subtitle),
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zap.String("site", firstNonEmpty(item.SiteName, item.SiteID)),
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zap.String("site_category", item.Category),
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zap.Int("season", candidate.Season),
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zap.Int("episode", candidate.Episode),
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zap.Bool("pack", candidate.Pack),
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zap.Int("score", candidate.Score),
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zap.String("media_type", mediaType),
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zap.String("media_category", mediaCategory),
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zap.String("save_path", savePath),
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)
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s.log.Info("site-search subscription candidate queued", fields...)
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}
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}
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availability = s.finalizePendingAvailability(sub, availability)
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if len(seen) > 200 {
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seen = seen[len(seen)-200:]
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}
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_ = s.repo.Setting.Set(ctx, guidKey, strings.Join(seen, "\n"))
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now := time.Now()
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_ = s.repo.DB.Model(sub).Updates(map[string]any{"last_run_at": &now}).Error
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_ = s.archiveCompletedSubscription(ctx, sub, availability)
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if queued > 0 {
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s.hub.Publish("subscription", map[string]any{
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"id": sub.ID,
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"name": sub.Name,
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"queued": queued,
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"keyword": keyword,
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"resources": resources,
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})
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s.notifySubscriptionHit(sub, queued, resources)
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return queued, nil
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}
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if lastEnqueueErr != nil {
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return 0, fmt.Errorf("找到 PT 资源但加入下载器失败: %w", lastEnqueueErr)
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}
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if s.log != nil {
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fields := subscriptionSiteSearchLogFields(sub, keyword)
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fields = appendSiteSearchSelectionLogFields(fields, selectionStats)
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fields = appendAvailabilityLogFields(fields, availability)
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fields = append(fields, zap.Int("queued", queued))
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s.log.Info("site-search subscription no candidate queued", fields...)
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}
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return 0, nil
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}
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