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package app
import (
"context"
"fmt"
"os"
"path/filepath"
"sort"
"codeberg.org/snonux/yoga/internal/tags"
"codeberg.org/snonux/yoga/internal/thumbnail"
)
type Loader struct {
root string
durationCache *durationCache
thumbnailCache *thumbnail.Cache
generator *thumbnail.Generator
}
func NewLoader(root string, durationCachePath string) *Loader {
durationCache, _ := loadDurationCache(durationCachePath)
return &Loader{
root: root,
durationCache: durationCache,
thumbnailCache: thumbnail.NewCache(root),
generator: thumbnail.NewGenerator(),
}
}
func (l *Loader) LoadVideos(ctx context.Context) ([]video, []string, []string, error) {
paths, err := collectVideoPathsForLoader(ctx, l.root)
if err != nil {
return nil, nil, nil, err
}
videos := make([]video, 0, len(paths))
durationPending := make([]string, 0)
thumbnailPending := make([]string, 0)
var tagErrors []string
for _, path := range paths {
info, statErr := os.Stat(path)
if statErr != nil {
videos = append(videos, video{
Name: filepath.Base(path),
Path: path,
Err: statErr,
Tags: []string{},
})
continue
}
dur := cachedDuration(l.durationCache, path, info)
if dur == 0 {
durationPending = append(durationPending, path)
}
thumbPath, hasThumb := l.checkThumbnail(path, info)
if !hasThumb {
thumbnailPending = append(thumbnailPending, path)
}
tagList, tagErr := tags.Load(path)
if tagErr != nil {
tagErrors = append(tagErrors, fmt.Sprintf("%s: %v", filepath.Base(path), tagErr))
}
videos = append(videos, video{
Name: filepath.Base(path),
Path: path,
Duration: dur,
ModTime: info.ModTime(),
Size: info.Size(),
Tags: tagList,
Thumbnail: thumbPath,
ThumbnailGenerated: hasThumb,
})
}
sort.Strings(durationPending)
sort.Strings(thumbnailPending)
sort.Strings(tagErrors)
return videos, durationPending, thumbnailPending, joinErrors(tagErrors)
}
func (l *Loader) checkThumbnail(videoPath string, info os.FileInfo) (string, bool) {
if l.thumbnailCache == nil {
return "", false
}
return l.thumbnailCache.Lookup(videoPath, info.ModTime())
}
func (l *Loader) GenerateThumbnail(ctx context.Context, videoPath string, modTime os.FileInfo) (string, error) {
if l.thumbnailCache == nil {
return "", fmt.Errorf("thumbnail cache not initialized")
}
thumbPath, err := l.generator.Generate(ctx, videoPath)
if err != nil {
return "", err
}
if err := l.thumbnailCache.Store(videoPath, modTime.ModTime(), thumbPath); err != nil {
return "", fmt.Errorf("store thumbnail cache: %w", err)
}
return thumbPath, nil
}
func collectVideoPathsForLoader(ctx context.Context, root string) ([]string, error) {
info, err := os.Stat(root)
if err != nil {
return nil, err
}
if !info.IsDir() {
if isVideo(root) {
return []string{root}, nil
}
return nil, nil
}
paths, err := collectVideoPaths(root)
if err != nil {
return nil, err
}
sort.Strings(paths)
return paths, nil
}
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