refactor torrent

src/host/store/file-mappings.go

@@ -1,61 +0,0 @@
-package store
-
-import (
-	"context"
-	"errors"
-	"path/filepath"
-
-	"github.com/anacrolix/torrent"
-	"github.com/anacrolix/torrent/types/infohash"
-	"github.com/royalcat/kv"
-)
-
-func NewFileMappings(metaDir string, storage TorrentFileDeleter) (*FilesMappings, error) {
-	str, err := kv.NewBadgerKVBytes[string, string](filepath.Join(metaDir, "file-mappings"))
-	if err != nil {
-		return nil, err
-	}
-
-	r := &FilesMappings{
-		mappings: str,
-		storage:  storage,
-	}
-
-	return r, nil
-}
-
-type FilesMappings struct {
-	mappings kv.Store[string, string]
-	storage  TorrentFileDeleter
-}
-
-var ErrNotFound = errors.New("not found")
-
-type TorrentFileDeleter interface {
-	DeleteFile(file *torrent.File) error
-}
-
-func fileKey(file *torrent.File) string {
-	return file.Torrent().InfoHash().HexString() + "/" + file.Path()
-}
-
-func (r *FilesMappings) MapFile(ctx context.Context, file *torrent.File, target string) error {
-	return r.mappings.Set(ctx, fileKey(file), target)
-}
-
-func (r *FilesMappings) ExcludeFile(ctx context.Context, file *torrent.File) error {
-	return r.mappings.Set(ctx, fileKey(file), "")
-}
-
-func (r *FilesMappings) FileMappings(ctx context.Context, ih infohash.T) (map[string]string, error) {
-	out := map[string]string{}
-	err := r.mappings.RangeWithPrefix(ctx, ih.HexString(), func(k, v string) bool {
-		out[k] = v
-		return true
-	})
-	return out, err
-}
-
-func (r *FilesMappings) Close(ctx context.Context) error {
-	return r.mappings.Close(ctx)
-}