fix #92

assets/translation.json

@@ -255,7 +255,10 @@
     "Click favorite": "点击收藏",
     "End": "末尾",
     "None": "无",
-    "View Detail": "查看详情"
+    "View Detail": "查看详情",
+    "Select a directory which contains multiple cbz/zip files." : "选择一个包含多个cbz/zip文件的目录",
+    "Multiple cbz files" : "多个cbz文件",
+    "No valid comics found" : "未找到有效的漫画"
   },
   "zh_TW": {
     "Home": "首頁",
@@ -513,6 +516,9 @@
     "Click favorite": "點擊收藏",
     "End": "末尾",
     "None": "無",
-    "View Detail": "查看詳情"
+    "View Detail": "查看詳情",
+    "Select a directory which contains multiple cbz/zip files." : "選擇一個包含多個cbz/zip文件的目錄",
+    "Multiple cbz files" : "多個cbz文件",
+    "No valid comics found" : "未找到有效的漫畫"
   }
 }

lib/pages/home_page.dart

@@ -495,12 +495,14 @@ class _ImportComicsWidgetState extends State<_ImportComicsWidget> {
       "Select a directory which contains the comic files.".tl,
       "Select a directory which contains the comic directories.".tl,
       "Select a cbz/zip file.".tl,
+      "Select a directory which contains multiple cbz/zip files.".tl,
       "Select an EhViewer database and a download folder.".tl
     ][type];
     List<String> importMethods = [
       "Single Comic".tl,
       "Multiple Comics".tl,
       "A cbz file".tl,
+      "Multiple cbz files".tl,
       "EhViewer downloads".tl
     ];
 
@@ -628,7 +630,8 @@ class _ImportComicsWidgetState extends State<_ImportComicsWidget> {
       0 => await importer.directory(true),
       1 => await importer.directory(false),
       2 => await importer.cbz(),
-      3 => await importer.ehViewer(),
+      3 => await importer.multipleCbz(),
+      4 => await importer.ehViewer(),
       int() => true,
     };
     if(result) {

lib/utils/import_comic.dart

@@ -37,6 +37,33 @@ class ImportComic {
     return registerComics(imported, false);
   }
 
+  Future<bool> multipleCbz() async {
+    var picker = DirectoryPicker();
+    var dir = await picker.pickDirectory();
+    if (dir != null) {
+      var files = (await dir.list().toList()).whereType<File>().toList();
+      files.removeWhere((e) => e.extension != 'cbz' && e.extension != 'zip');
+      Map<String?, List<LocalComic>> imported = {};
+      var controller = showLoadingDialog(App.rootContext, allowCancel: false);
+      var comics = <LocalComic>[];
+      for (var file in files) {
+        try {
+          var comic = await CBZ.import(file);
+          comics.add(comic);
+        } catch (e, s) {
+          Log.error("Import Comic", e.toString(), s);
+        }
+      }
+      if (comics.isEmpty) {
+        App.rootContext.showMessage(message: "No valid comics found".tl);
+      }
+      imported[selectedFolder] = comics;
+      controller.close();
+      return registerComics(imported, false);
+    }
+    return false;
+  }
+
   Future<bool> ehViewer() async {
     var dbFile = await selectFile(ext: ['db']);
     final picker = DirectoryPicker();

lib/utils/io.dart

@@ -72,6 +72,7 @@ extension FileSystemEntityExt on FileSystemEntity {
 }
 
 extension FileExtension on File {
+  /// Get the file extension, not including the dot.
   String get extension => path.split('.').last;
 
   /// Copy the file to the specified path using memory.