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fix: harden watch playback flow

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mkelvers
2026-04-19 02:10:20 +02:00
parent 7c333da8e5
commit afba550da3
3 changed files with 213 additions and 72 deletions
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129
internal/features/playback/service.go
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@@ -93,7 +93,7 @@ func NewService(db database.Querier) *Service {
}
}
func (s *Service) BuildWatchPageData(ctx context.Context, malID int, title string, episode string, mode string, userID string) (WatchPageData, error) {
func (s *Service) BuildWatchPageData(ctx context.Context, malID int, titleCandidates []string, episode string, mode string, userID string) (WatchPageData, error) {
if malID <= 0 {
return WatchPageData{}, errors.New("invalid mal id")
}
@@ -113,7 +113,7 @@ func (s *Service) BuildWatchPageData(ctx context.Context, malID int, title strin
cacheKey := playbackDataCacheKey(malID, normalizedEpisode)
baseData, cacheHit := s.getPlaybackBaseDataCache(cacheKey)
if !cacheHit {
showID, resolvedTitle, err := s.resolveShowCached(ctx, malID, title)
showID, resolvedTitle, err := s.resolveShowCached(ctx, malID, titleCandidates)
if err != nil {
return WatchPageData{}, err
}
@@ -125,7 +125,7 @@ func (s *Service) BuildWatchPageData(ctx context.Context, malID int, title strin
watchTitle := strings.TrimSpace(resolvedTitle)
if watchTitle == "" {
watchTitle = strings.TrimSpace(title)
watchTitle = firstNonEmptyTitle(titleCandidates)
}
if watchTitle == "" {
watchTitle = fmt.Sprintf("MAL #%d", malID)
@@ -233,7 +233,7 @@ func (s *Service) setPlaybackBaseDataCache(key string, data playbackBaseData) {
s.cacheMu.Unlock()
}
func (s *Service) resolveShowCached(ctx context.Context, malID int, title string) (string, string, error) {
func (s *Service) resolveShowCached(ctx context.Context, malID int, titleCandidates []string) (string, string, error) {
now := time.Now()
s.cacheMu.RLock()
@@ -244,7 +244,7 @@ func (s *Service) resolveShowCached(ctx context.Context, malID int, title string
return item.ShowID, item.Title, nil
}
showID, resolvedTitle, err := s.resolveShow(ctx, malID, title)
showID, resolvedTitle, err := s.resolveShow(ctx, malID, titleCandidates)
if err != nil {
return "", "", err
}
@@ -365,43 +365,22 @@ func cloneSegments(segments []SkipSegment) []SkipSegment {
return cloned
}
func (s *Service) resolveShow(ctx context.Context, malID int, title string) (string, string, error) {
func (s *Service) resolveShow(ctx context.Context, malID int, titleCandidates []string) (string, string, error) {
malText := strconv.Itoa(malID)
modeCandidates := []string{"sub", "dub"}
queries := buildTitleSearchQueries(titleCandidates)
resultsByMode := make(map[string][]searchResult, len(modeCandidates))
searchCh := make(chan searchModeResult, len(modeCandidates))
for _, query := range queries {
resultsByMode := s.searchShowResultsByMode(ctx, query, modeCandidates)
var wg sync.WaitGroup
for _, mode := range modeCandidates {
modeValue := mode
wg.Add(1)
go func() {
defer wg.Done()
results, err := s.allAnimeClient.Search(ctx, title, modeValue)
searchCh <- searchModeResult{Mode: modeValue, Results: results, Err: err}
}()
}
wg.Wait()
close(searchCh)
for result := range searchCh {
if result.Err != nil {
continue
}
resultsByMode[result.Mode] = result.Results
}
for _, mode := range modeCandidates {
for _, result := range resultsByMode[mode] {
if strings.TrimSpace(result.MalID) == malText && strings.TrimSpace(result.ID) != "" {
return result.ID, result.Name, nil
for _, mode := range modeCandidates {
for _, result := range resultsByMode[mode] {
if strings.TrimSpace(result.MalID) == malText && strings.TrimSpace(result.ID) != "" {
return result.ID, result.Name, nil
}
}
}
}
if strings.TrimSpace(title) != "" {
for _, mode := range modeCandidates {
results := resultsByMode[mode]
if len(results) == 0 {
@@ -418,6 +397,86 @@ func (s *Service) resolveShow(ctx context.Context, malID int, title string) (str
return "", "", errors.New("unable to resolve allanime show")
}
func (s *Service) searchShowResultsByMode(ctx context.Context, query string, modeCandidates []string) map[string][]searchResult {
resultsByMode := make(map[string][]searchResult, len(modeCandidates))
searchCh := make(chan searchModeResult, len(modeCandidates))
var wg sync.WaitGroup
for _, mode := range modeCandidates {
modeValue := mode
wg.Add(1)
go func() {
defer wg.Done()
results, err := s.allAnimeClient.Search(ctx, query, modeValue)
searchCh <- searchModeResult{Mode: modeValue, Results: results, Err: err}
}()
}
wg.Wait()
close(searchCh)
for result := range searchCh {
if result.Err != nil {
continue
}
resultsByMode[result.Mode] = result.Results
}
return resultsByMode
}
func buildTitleSearchQueries(titleCandidates []string) []string {
queries := make([]string, 0, len(titleCandidates)*4)
seen := make(map[string]struct{})
add := func(raw string) {
normalized := normalizeSearchQuery(raw)
if normalized == "" {
return
}
key := strings.ToLower(normalized)
if _, exists := seen[key]; exists {
return
}
seen[key] = struct{}{}
queries = append(queries, normalized)
}
for _, candidate := range titleCandidates {
normalized := normalizeSearchQuery(candidate)
if normalized == "" {
continue
}
add(normalized)
add(strings.ReplaceAll(normalized, "+", " "))
withoutApostrophes := strings.NewReplacer("'", "", "’", "", "`", "").Replace(normalized)
add(withoutApostrophes)
add(strings.ReplaceAll(withoutApostrophes, "+", " "))
}
return queries
}
func normalizeSearchQuery(raw string) string {
return strings.Join(strings.Fields(strings.TrimSpace(raw)), " ")
}
func firstNonEmptyTitle(values []string) string {
for _, value := range values {
normalized := strings.TrimSpace(value)
if normalized != "" {
return normalized
}
}
return ""
}
func (s *Service) resolveModeSource(ctx context.Context, showID string, episode string, mode string, quality string) (StreamSource, error) {
sources, err := s.allAnimeClient.GetEpisodeSources(ctx, showID, episode, mode)
if err != nil {