tags translation

lib/utils/tags_translation.dart

@@ -0,0 +1,202 @@
+/*
+数据来自于:
+https://github.com/EhTagTranslation/Database/tree/master/database
+
+繁体中文由 @NeKoOuO (https://github.com/NeKoOuO) 提供
+*/
+
+
+import 'dart:convert';
+import 'package:flutter/services.dart';
+import 'package:venera/foundation/app.dart';
+import 'package:venera/utils/ext.dart';
+
+extension TagsTranslation on String{
+  static final Map<String, Map<String, String>> _data = {};
+
+  static Future<void> readData() async{
+    if(App.locale.languageCode != "zh"){
+      return;
+    }
+    var fileName = App.locale.countryCode == 'TW'
+        ? "assets/tags_tw.json"
+        : "assets/tags.json";
+    var data = await rootBundle.load(fileName);
+    List<int> bytes = data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
+    const JsonDecoder().convert(const Utf8Decoder().convert(bytes)).forEach((key, value){
+      _data[key] = {};
+      value.forEach((key1, value1){
+        _data[key]?[key1] = value1;
+      });
+    });
+  }
+
+  static bool _haveNamespace(String key) {
+    return _data.containsKey(key);
+  }
+
+  /// 对tag进行处理后进行翻译: 代表'或'的分割符'|', namespace.
+  static String _translateTags(String tag){
+    if (tag.contains('|')) {
+      var splits = tag.split(' | ');
+      return enTagsTranslations[splits[0]]??enTagsTranslations[splits[1]]??tag;
+    } else if(tag.contains(':')) {
+      var splits = tag.split(':');
+      if(_haveNamespace(splits[0])) {
+        return translationTagWithNamespace(splits[1], splits[0]);
+      } else {
+        return tag;
+      }
+    } else {
+      return enTagsTranslations[tag]??tag;
+    }
+  }
+
+  /// translate tag's text to chinese
+  String get translateTagsToCN => _translateTags(this);
+
+  static String translateTag(String tag) {
+    if(tag.contains(':')) {
+      var [namespace, text] = tag.split(':');
+      return translationTagWithNamespace(text, namespace);
+    } else {
+      return tag.translateTagsToCN;
+    }
+  }
+
+  static String translationTagWithNamespace(String text, String namespace){
+    text = text.toLowerCase();
+    if(text != "reclass" && text.endsWith('s')){
+      text.replaceLast('s', '');
+    }
+    return switch(namespace){
+      "male" => maleTags[text] ?? text,
+      "female" => femaleTags[text] ?? text,
+      "mixed" => mixedTags[text] ?? text,
+      "other" => otherTags[text] ?? text,
+      "parody" => parodyTags[text] ?? text,
+      "character" => characterTranslations[text] ?? text,
+      "group" => groupTags[text] ?? text,
+      "cosplayer" => cosplayerTags[text] ?? text,
+      "reclass" => reclassTags[text] ?? text,
+      "language" => languageTranslations[text] ?? text,
+      "artist" => artistTags[text] ?? text,
+      _ => text.translateTagsToCN
+    };
+  }
+
+  String _categoryTextDynamic(String c){
+    if(App.locale.languageCode == "zh"){
+      return translateTagsCategoryToCN;
+    }else{
+      return this;
+    }
+  }
+
+  String get categoryTextDynamic => _categoryTextDynamic(this);
+
+  String get translateTagsCategoryToCN => tagsCategoryTranslations[this]??this;
+
+  get tagsCategoryTranslations => switch(App.locale.countryCode){
+    "CN" => tagsCategoryTranslationsCN,
+    "TW" => tagsCategoryTranslationsTW,
+    _ => tagsCategoryTranslationsCN
+  };
+
+  static const tagsCategoryTranslationsCN = {
+    "language": "语言",
+    "artist": "画师",
+    "male": "男性",
+    "female": "女性",
+    "mixed": "混合",
+    "other": "其它",
+    "parody": "原作",
+    "character": "角色",
+    "group": "团队",
+    "cosplayer": "Coser",
+    "reclass": "重新分类",
+    "Languages": "语言",
+    "Artists": "画师",
+    "Characters": "角色",
+    "Groups": "团队",
+    "Tags": "标签",
+    "Parodies": "原作",
+    "Categories": "分类",
+    "Time": "时间"
+  };
+
+  static const tagsCategoryTranslationsTW = {
+    "language": "語言",
+    "artist": "畫師",
+    "male": "男性",
+    "female": "女性",
+    "mixed": "混合",
+    "other": "其他",
+    "parody": "原作",
+    "character": "角色",
+    "group": "團隊",
+    "cosplayer": "Coser",
+    "reclass": "重新分類",
+    "Languages": "語言",
+    "Artists": "畫師",
+    "Characters": "角色",
+    "Groups": "團隊",
+    "Tags": "標籤",
+    "Parodies": "原作",
+    "Categories": "分類",
+    "Time": "時間"
+  };
+
+  static Map<String, String> get maleTags => _data["male"] ?? const {};
+
+  static Map<String, String> get femaleTags => _data["female"] ?? const {};
+
+  static Map<String, String> get languageTranslations => _data["language"] ?? const {};
+
+  static Map<String, String> get parodyTags => _data["parody"] ?? const {};
+
+  static Map<String, String> get characterTranslations => _data["character"] ?? const {};
+
+  static Map<String, String> get otherTags => _data["other"] ?? const {};
+
+  static Map<String, String> get mixedTags => _data["mixed"] ?? const {};
+
+  static Map<String, String> get characterTags => _data["character"] ?? const {};
+
+  static Map<String, String> get artistTags => _data["artist"] ?? const {};
+
+  static Map<String, String> get groupTags => _data["group"] ?? const {};
+
+  static Map<String, String> get cosplayerTags => _data["cosplayer"] ?? const {};
+
+  static Map<String, String> get reclassTags => _data["reclass"] ?? const {};
+
+  /// English to chinese translations
+  ///
+  /// Not include artists and group
+  static MultipleMap<String, String> get enTagsTranslations => MultipleMap([
+    maleTags, femaleTags, languageTranslations, parodyTags, characterTranslations,
+    otherTags, mixedTags
+  ]);
+}
+
+enum TranslationType{
+  female, male, mixed, language, other, group, artist, cosplayer, parody,
+  character, reclass
+}
+
+class MultipleMap<S, T>{
+  final List<Map<S, T>> maps;
+
+  MultipleMap(this.maps);
+
+  T? operator[](S key) {
+    for (var map in maps){
+      var value = map[key];
+      if(value != null){
+        return value;
+      }
+    }
+    return null;
+  }
+}