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localassets.go
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/
localassets.go
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package files
import (
"context"
"io/fs"
"path"
"path/filepath"
"runtime"
"strings"
"time"
"github.com/simulot/immich-go/browser"
"github.com/simulot/immich-go/helpers/fshelper"
"github.com/simulot/immich-go/immich/metadata"
"github.com/simulot/immich-go/logger"
)
type LocalAssetBrowser struct {
fsyss []fs.FS
albums map[string]string
log *logger.Journal
}
func NewLocalFiles(ctx context.Context, log *logger.Journal, fsyss ...fs.FS) (*LocalAssetBrowser, error) {
return &LocalAssetBrowser{
fsyss: fsyss,
albums: map[string]string{},
log: log,
}, nil
}
var toOldDate = time.Date(1980, 1, 1, 0, 0, 0, 0, time.UTC)
func (la *LocalAssetBrowser) Browse(ctx context.Context) chan *browser.LocalAssetFile {
fileChan := make(chan *browser.LocalAssetFile)
// Browse all given FS to collect the list of files
go func(ctx context.Context) {
defer close(fileChan)
for _, fsys := range la.fsyss {
err := fs.WalkDir(fsys, ".",
func(name string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
// Check if the context has been cancelled
select {
case <-ctx.Done():
// If the context has been cancelled, return immediately
return ctx.Err()
default:
if d.IsDir() {
return la.handleFolder(ctx, fsys, fileChan, name)
}
}
return nil
})
if err != nil {
// Check if the context has been cancelled before sending the error
select {
case <-ctx.Done():
// If the context has been cancelled, return immediately
return
case fileChan <- &browser.LocalAssetFile{
Err: err,
}:
}
}
}
}(ctx)
return fileChan
}
func (la *LocalAssetBrowser) handleFolder(ctx context.Context, fsys fs.FS, fileChan chan *browser.LocalAssetFile, folder string) error {
entries, err := fs.ReadDir(fsys, folder)
if err != nil {
return err
}
// fileMap := map[string][]fs.DirEntry{}
// for _, e := range entries {
// if e.IsDir() {
// continue
// }
// ext := path.Ext(e.Name())
// _, err := fshelper.MimeFromExt(ext)
// if strings.ToLower(ext) == ".xmp" || err == nil {
// base := strings.TrimSuffix(e.Name(), ext)
// fileMap[base] = append(fileMap[base], e)
// }
// }
for _, e := range entries {
if e.IsDir() {
continue
}
fileName := path.Join(folder, e.Name())
la.log.AddEntry(fileName, logger.DISCOVERED_FILE, "")
name := e.Name()
ext := strings.ToLower(path.Ext(name))
if fshelper.IsMetadataExt(ext) {
la.log.AddEntry(name, logger.METADATA, "")
continue
} else if fshelper.IsIgnoredExt(ext) {
la.log.AddEntry(fileName, logger.UNSUPPORTED, "")
continue
}
m, err := fshelper.MimeFromExt(strings.ToLower(ext))
if err != nil {
la.log.AddEntry(fileName, logger.UNSUPPORTED, "")
continue
}
ss := strings.Split(m[0], "/")
if ss[0] == "image" {
la.log.AddEntry(name, logger.SCANNED_IMAGE, "")
} else {
la.log.AddEntry(name, logger.SCANNED_VIDEO, "")
}
f := browser.LocalAssetFile{
FSys: fsys,
FileName: path.Join(folder, name),
Title: path.Base(name),
FileSize: 0,
Err: err,
DateTaken: metadata.TakeTimeFromName(filepath.Base(name)),
}
s, err := e.Info()
if err != nil {
f.Err = err
} else {
f.FileSize = int(s.Size())
if f.DateTaken.IsZero() {
err = la.ReadMetadataFromFile(&f)
_ = err
if f.DateTaken.Before(toOldDate) {
f.DateTaken = time.Now()
}
}
la.checkSidecar(fsys, &f, entries, folder, name)
}
// Check if the context has been cancelled
select {
case <-ctx.Done():
// If the context has been cancelled, return immediately
return ctx.Err()
default:
fileChan <- &f
}
}
return nil
}
func (la *LocalAssetBrowser) checkSidecar(fsys fs.FS, f *browser.LocalAssetFile, entries []fs.DirEntry, dir, name string) bool {
assetBase := baseNames(name)
for _, name := range assetBase {
xmp := name + ".[xX][mM][pP]"
for _, e := range entries {
m, err := path.Match(xmp, e.Name())
if err != nil {
panic(err)
}
if m {
f.SideCar = &metadata.SideCar{
FileName: path.Join(dir, e.Name()),
OnFSsys: true,
}
la.log.AddEntry(name, logger.ASSOCIATED_META, "")
return true
}
}
}
return false
}
func baseNames(n string) []string {
n = escapeName(n)
names := []string{n}
ext := path.Ext(n)
for {
if ext == "" {
return names
}
_, err := fshelper.MimeFromExt(ext)
if err != nil {
return names
}
n = strings.TrimSuffix(n, ext)
names = append(names, n, n+".*")
ext = path.Ext(n)
}
}
func escapeName(n string) string {
b := strings.Builder{}
for _, c := range n {
switch c {
case '*', '?', '[', ']', '^':
b.WriteRune('\\')
case '\\':
if runtime.GOOS != "windows" {
b.WriteRune('\\')
}
}
b.WriteRune(c)
}
return b.String()
}
func (la *LocalAssetBrowser) addAlbum(dir string) {
base := path.Base(dir)
la.albums[dir] = base
}
func (la *LocalAssetBrowser) ReadMetadataFromFile(a *browser.LocalAssetFile) error {
ext := strings.ToLower(path.Ext(a.FileName))
// Open the file
r, err := a.PartialSourceReader()
if err != nil {
return err
}
m, err := metadata.GetFromReader(r, ext)
if err == nil {
a.DateTaken = m.DateTaken
}
return err
}