Refactor code

tools/togridfs/togridfs.go

@@ -12,7 +12,6 @@ func main() {
 	db = initDB()
 	defer db.Close()
 	books, _, _ := db.GetBooks(bson.M{})
-	fs := db.GetFS(FS_BOOKS)
 
 	for _, book := range books {
 		if book.Path == "" {
@@ -21,41 +20,68 @@ func main() {
 		}
 		fmt.Println(book.Title)
 
-		path := "books/" + book.Path
-		file, err := os.Open(path)
+		path := getPath(book)
+
+		id, err := storeFile(path, book)
 		if err != nil {
-			fmt.Println("os.Open ================", err)
+			fmt.Println("storeFile ================", err)
+			db.UpdateBook(bson.ObjectIdHex(book.Id), bson.M{"active": false})
 			continue
 		}
-		defer file.Close()
 
-		fw, err := fs.Create(book.Title + ".epub")
+		cover, coverSmall, err := cover(path, book)
 		if err != nil {
-			fmt.Println("gridfs.Create ================", err)
+			fmt.Println("cover ================", err)
+			db.UpdateBook(bson.ObjectIdHex(book.Id), bson.M{"active": false, "file": id})
 			continue
 		}
-		defer fw.Close()
 
-		_, err = io.Copy(fw, file)
-		if err != nil {
-			fmt.Println("io.Copy ================", err)
-			continue
-		}
-		id, _ := fw.Id().(bson.ObjectId)
-
-		e, err := epubgo.Open(path)
-		if err != nil {
-			fmt.Println("epubgo.Open ================", err)
-			continue
-		}
-		defer e.Close()
-
-		cover, coverSmall := GetCover(e, book.Title)
 		if cover != "" {
 			db.UpdateBook(bson.ObjectIdHex(book.Id), bson.M{"cover": cover, "coversmall": coverSmall, "file": id}, bson.M{"path": 1})
 		} else {
 			fmt.Println("No cover ================", book.Title)
-			db.UpdateBook(bson.ObjectIdHex(book.Id), bson.M{"file": id}, bson.M{"path": 1})
+			db.UpdateBook(bson.ObjectIdHex(book.Id), bson.M{"active": false, "file": id})
 		}
 	}
 }
+
+func getPath(book Book) string {
+	if !book.Active {
+		return "new/" + book.Path
+	}
+	return "books/" + book.Path
+}
+
+func storeFile(path string, book Book) (bson.ObjectId, error) {
+	fs := db.GetFS(FS_BOOKS)
+
+	file, err := os.Open(path)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	fw, err := fs.Create(book.Title + ".epub")
+	if err != nil {
+		return "", err
+	}
+	defer fw.Close()
+	id, _ := fw.Id().(bson.ObjectId)
+
+	_, err = io.Copy(fw, file)
+	if err != nil {
+		return id, err
+	}
+	return id, nil
+}
+
+func cover(path string, book Book) (bson.ObjectId, bson.ObjectId, error) {
+	e, err := epubgo.Open(path)
+	if err != nil {
+		return "", "", err
+	}
+	defer e.Close()
+
+	cover, coverSmall := GetCover(e, book.Title)
+	return cover, coverSmall, err
+}