add thumbnail format settings

lib/api/config.dart

@@ -11,6 +11,13 @@ enum ThumbnailMethod {
   ffmpegApi,
 }
 
+enum ThumbnailFormat {
+  @JsonValue(0)
+  jpeg,
+  @JsonValue(1)
+  webp,
+}
+
 enum ImportMethod {
   @JsonValue(0)
   copy,
@@ -75,6 +82,7 @@ class Config {
     required this.importMethod,
     required this.maxImportImgCount,
     required this.enableServerTiming,
+    required this.thumbnailFormat,
   });
   bool cookies;
   @JsonKey(name: 'db_path')
@@ -141,6 +149,8 @@ class Config {
   int maxImportImgCount;
   @JsonKey(name: 'enable_server_timing')
   bool enableServerTiming;
+  @JsonKey(name: 'thumbnail_format')
+  ThumbnailFormat thumbnailFormat;
   factory Config.fromJson(Map<String, dynamic> json) => _$ConfigFromJson(json);
   Map<String, dynamic> toJson() => _$ConfigToJson(this);
 }
@@ -262,6 +272,8 @@ class ConfigOptional {
   int? maxImportImgCount;
   @JsonKey(name: 'enable_server_timing')
   bool? enableServerTiming;
+  @JsonKey(name: 'thumbnail_format')
+  ThumbnailFormat? thumbnailFormat;
   factory ConfigOptional.fromJson(Map<String, dynamic> json) =>
       _$ConfigOptionalFromJson(json);
   Map<String, dynamic> toJson() => _$ConfigOptionalToJson(this);

lib/api/config.g.dart

@@ -49,6 +49,8 @@ Config _$ConfigFromJson(Map<String, dynamic> json) => Config(
       importMethod: $enumDecode(_$ImportMethodEnumMap, json['import_method']),
       maxImportImgCount: (json['max_import_img_count'] as num).toInt(),
       enableServerTiming: json['enable_server_timing'] as bool,
+      thumbnailFormat:
+          $enumDecode(_$ThumbnailFormatEnumMap, json['thumbnail_format']),
     );
 
 Map<String, dynamic> _$ConfigToJson(Config instance) => <String, dynamic>{
@@ -88,6 +90,7 @@ Map<String, dynamic> _$ConfigToJson(Config instance) => <String, dynamic>{
       'import_method': _$ImportMethodEnumMap[instance.importMethod]!,
       'max_import_img_count': instance.maxImportImgCount,
       'enable_server_timing': instance.enableServerTiming,
+      'thumbnail_format': _$ThumbnailFormatEnumMap[instance.thumbnailFormat]!,
     };
 
 const _$ThumbnailMethodEnumMap = {
@@ -102,6 +105,11 @@ const _$ImportMethodEnumMap = {
   ImportMethod.keep: 3,
 };
 
+const _$ThumbnailFormatEnumMap = {
+  ThumbnailFormat.jpeg: 0,
+  ThumbnailFormat.webp: 1,
+};
+
 UpdateConfigResult _$UpdateConfigResultFromJson(Map<String, dynamic> json) =>
     UpdateConfigResult(
       isUnsafe: json['is_unsafe'] as bool,
@@ -157,7 +165,8 @@ ConfigOptional _$ConfigOptionalFromJson(Map<String, dynamic> json) =>
           $enumDecodeNullable(_$ImportMethodEnumMap, json['import_method']),
       maxImportImgCount: (json['max_import_img_count'] as num?)?.toInt(),
       enableServerTiming: json['enable_server_timing'] as bool?,
-    );
+    )..thumbnailFormat =
+        $enumDecodeNullable(_$ThumbnailFormatEnumMap, json['thumbnail_format']);
 
 Map<String, dynamic> _$ConfigOptionalToJson(ConfigOptional instance) =>
     <String, dynamic>{
@@ -197,4 +206,5 @@ Map<String, dynamic> _$ConfigOptionalToJson(ConfigOptional instance) =>
       'import_method': _$ImportMethodEnumMap[instance.importMethod],
       'max_import_img_count': instance.maxImportImgCount,
       'enable_server_timing': instance.enableServerTiming,
+      'thumbnail_format': _$ThumbnailFormatEnumMap[instance.thumbnailFormat],
     };

lib/l10n/app_en.arb

@@ -331,5 +331,7 @@
     "updateTagTranslation": "Update tag's translation",
     "createUpdateTagTranslationTask": "Create update tag's translation task",
     "translationFile": "Tnanslation file",
-    "translationFileHelp": "The path to json file contains tag's translation. Will download from website if this is empty."
+    "translationFileHelp": "The path to json file contains tag's translation. Will download from website if this is empty.",
+    "thumbnailFormat": "Thumbnail format",
+    "thumbnailFormatHelp": "Webp is not supported in ffmpeg API method."
 }

lib/l10n/app_zh.arb

@@ -331,5 +331,7 @@
     "updateTagTranslation": "更新标签的翻译",
     "createUpdateTagTranslationTask": "创建更新标签翻译的任务",
     "translationFile": "翻译文件",
-    "translationFileHelp": "包含标签翻译的JSON文件路径。未指定时将从网站上下载。"
+    "translationFileHelp": "包含标签翻译的JSON文件路径。未指定时将从网站上下载。",
+    "thumbnailFormat": "缩略图格式",
+    "thumbnailFormatHelp": "ffmpeg API方式不支持webp格式。"
 }

lib/pages/settings/server.dart

@@ -787,6 +787,27 @@ class _ServerSettingsPage extends State<ServerSettingsPage>
               });
             },
           )),
+          _buildWithVecticalPadding(DropdownButtonFormField<ThumbnailFormat>(
+              items: ThumbnailFormat.values
+                  .map((e) => DropdownMenuItem(
+                      value: e,
+                      child: Text(
+                          e.toString().replaceFirst("ThumbnailFormat.", ""))))
+                  .toList(),
+              onChanged: (v) {
+                if (v != null) {
+                  setState(() {
+                    _now.thumbnailFormat = v;
+                    _changed = true;
+                  });
+                }
+              },
+              value: _now.thumbnailFormat ?? _config!.thumbnailFormat,
+              decoration: InputDecoration(
+                border: const OutlineInputBorder(),
+                labelText: i18n.thumbnailFormat,
+                helperText: i18n.thumbnailFormatHelp,
+              ))),
         ]));
   }