multiple fix again

cmd/cli/commands/sync/sync.go

@@ -94,13 +94,6 @@ func (p *SyncCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{})
 
 		pg.Describe(fmt.Sprintf("[%s] Fetching metadata...", g.Name))
 
-		hremote, err := cli.Hash(r.GameID)
-		if err != nil {
-			destroyPg()
-			fmt.Fprintln(os.Stderr, "error: failed to get the file hash from the remote:", err)
-			continue
-		}
-
 		remoteMetadata, err := cli.Metadata(r.GameID)
 		if err != nil {
 			destroyPg()
@@ -118,7 +111,7 @@ func (p *SyncCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{})
 			slog.Warn("failed to push backup files", "err", err)
 		}
 
-		if g.MD5 == hremote {
+		if g.MD5 == remoteMetadata.MD5 {
 			destroyPg()
 			if g.Version != remoteMetadata.Version {
 				slog.Debug("version is not the same, but the hash is equal. Updating local database")

cmd/server/api/api.go

@@ -60,7 +60,6 @@ func NewServer(documentRoot string, srv *data.Service, creds map[string]string,
 					gamesRouter.Group(func(saveRouter chi.Router) {
 						saveRouter.Post("/{id}/data", s.upload)
 						saveRouter.Get("/{id}/data", s.download)
-						saveRouter.Get("/{id}/hash", s.hash)
 						saveRouter.Get("/{id}/metadata", s.metadata)
 
 						saveRouter.Get("/{id}/hist", s.allHist)
@@ -272,22 +271,6 @@ func (s HTTPServer) histExists(w http.ResponseWriter, r *http.Request) {
 	ok(finfo, w, r)
 }
 
-func (s HTTPServer) hash(w http.ResponseWriter, r *http.Request) {
-	id := chi.URLParam(r, "id")
-
-	m, err := s.Service.One(id)
-	if err != nil {
-		if errors.Is(err, repository.ErrNotFound) {
-			notFound("not found", w, r)
-			return
-		}
-		fmt.Fprintln(os.Stderr, "error: an error occured while calculating the hash:", err)
-		internalServerError(w, r)
-		return
-	}
-
-	ok(m.MD5, w, r)
-}
 
 func (s HTTPServer) metadata(w http.ResponseWriter, r *http.Request) {
 	id := chi.URLParam(r, "id")

pkg/remote/client/client.go

@@ -49,7 +49,7 @@ func New(baseURL, username, password string) *Client {
 }
 
 func (c *Client) Exists(gameID string) (bool, error) {
-	u, err := url.JoinPath(c.baseURL, "api", "v1", "games", gameID, "hash")
+	u, err := url.JoinPath(c.baseURL, "api", "v1", "games", gameID, "metadata")
 	if err != nil {
 		return false, err
 	}
@@ -104,22 +104,13 @@ func (c *Client) Version() (Information, error) {
 	return Information{}, errors.New("invalid payload sent by the server")
 }
 
+// Deprecated: use c.Metadata instead
 func (c *Client) Hash(gameID string) (string, error) {
-	u, err := url.JoinPath(c.baseURL, "api", "v1", "games", gameID, "hash")
+	m, err := c.Metadata(gameID)
 	if err != nil {
 		return "", err
 	}
-
-	o, err := c.get(u)
-	if err != nil {
-		return "", err
-	}
-
-	if h, ok := (o.Data).(string); ok {
-		return h, nil
-	}
-
-	return "", errors.New("invalid payload sent by the server")
+	return m.MD5, nil
 }
 
 func (c *Client) Metadata(gameID string) (repository.Metadata, error) {
@@ -139,6 +130,7 @@ func (c *Client) Metadata(gameID string) (repository.Metadata, error) {
 			Name:    m["name"].(string),
 			Version: int(m["version"].(float64)),
 			Date:    customtime.MustParse(time.RFC3339, m["date"].(string)),
+			MD5:     m["md5"].(string),
 		}
 		return gm, nil
 	}
@@ -355,6 +347,7 @@ func (c *Client) All() ([]repository.Metadata, error) {
 					Name:    v["name"].(string),
 					Version: int(v["version"].(float64)),
 					Date:    customtime.MustParse(time.RFC3339, v["date"].(string)),
+					MD5:     v["md5"].(string),
 				}
 				res = append(res, gm)
 			}

pkg/repository/repository.go

@@ -9,6 +9,7 @@ import (
 	"log/slog"
 	"os"
 	"path/filepath"
+	"sync"
 	"time"
 )
 
@@ -19,7 +20,7 @@ type (
 		Path    string    `json:"path"`
 		Version int       `json:"version"`
 		Date    time.Time `json:"date"`
-		MD5     string    `json:"-"`
+		MD5     string    `json:"md5,omitempty"`
 	}
 
 	Remote struct {
@@ -61,6 +62,7 @@ type (
 	EagerRepository struct {
 		Repository
 
+		mu   sync.RWMutex
 		data map[string]Data
 	}
 
@@ -189,6 +191,7 @@ func (l *LazyRepository) WriteBlob(ID Identifier) (io.Writer, error) {
 }
 
 func (l *LazyRepository) WriteMetadata(id GameIdentifier, m Metadata) error {
+	m.MD5 = ""
 	path := l.DataPath(id)
 
 	slog.Debug("writing metadata", "id", id, "metadata", m)
@@ -392,6 +395,9 @@ func NewEagerRepository(dataRootPath string) (*EagerRepository, error) {
 }
 
 func (r *EagerRepository) Preload() error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
 	games, err := r.Repository.All()
 	if err != nil {
 		return fmt.Errorf("failed to load all data: %w", err)
@@ -435,6 +441,9 @@ func (r *EagerRepository) Preload() error {
 }
 
 func (r *EagerRepository) All() ([]string, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
 	var res []string
 	for _, g := range r.data {
 		res = append(res, g.Metadata.ID)
@@ -444,6 +453,9 @@ func (r *EagerRepository) All() ([]string, error) {
 }
 
 func (r *EagerRepository) AllHist(id GameIdentifier) ([]string, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
 	var res []string
 	if d, ok := r.data[id.gameID]; ok {
 		for _, b := range d.Backup {
@@ -454,12 +466,15 @@ func (r *EagerRepository) AllHist(id GameIdentifier) ([]string, error) {
 }
 
 func (r *EagerRepository) WriteMetadata(id GameIdentifier, m Metadata) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
 	err := r.Repository.WriteMetadata(id, m)
 	if err != nil {
 		return err
 	}
 
-	// reload from disk because md5
+	// reload from disk because of md5
 	m, err = r.Repository.Metadata(id)
 	if err != nil {
 		return err
@@ -473,6 +488,9 @@ func (r *EagerRepository) WriteMetadata(id GameIdentifier, m Metadata) error {
 }
 
 func (r *EagerRepository) Metadata(id GameIdentifier) (Metadata, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
 	if d, ok := r.data[id.gameID]; ok {
 		return d.Metadata, nil
 	}
@@ -480,6 +498,9 @@ func (r *EagerRepository) Metadata(id GameIdentifier) (Metadata, error) {
 }
 
 func (r *EagerRepository) Backup(id BackupIdentifier) (Backup, error) {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
 	if d, ok := r.data[id.gameID]; ok {
 		if b, ok := d.Backup[id.backupID]; ok {
 			return b, nil
@@ -489,6 +510,9 @@ func (r *EagerRepository) Backup(id BackupIdentifier) (Backup, error) {
 }
 
 func (r *EagerRepository) SetRemote(id GameIdentifier, url string) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
 	err := r.Repository.SetRemote(id, url)
 	if err != nil {
 		return err
@@ -505,6 +529,9 @@ func (r *EagerRepository) SetRemote(id GameIdentifier, url string) error {
 }
 
 func (r *EagerRepository) Remove(id GameIdentifier) error {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+
 	if err := r.Repository.Remove(id); err != nil {
 		return err
 	}