refactor(usage): 移除成本统计相关功能

移除翻译使用统计中的成本计算、成本配置和阈值预警功能
更新相关视图和控制器以匹配功能变更

lib/data/services/usage_stats_service.dart

@@ -8,7 +8,6 @@ import '../../core/utils/logger.dart';
 class UsageStatsService extends GetxService {
   static const String _storageKey = 'usage_stats';
   static const String _dailyStatsKey = 'daily_translation_stats';
-  static const String _costConfigKey = 'translation_cost_config';
 
   final GetStorage _storage = GetStorage();
 
@@ -19,13 +18,6 @@ class UsageStatsService extends GetxService {
   final Rx<TranslationUsageStats> todayStats =
       TranslationUsageStats.empty('').obs;
 
-  // 成本配置
-  final RxMap<String, double> costConfig = <String, double>{}.obs;
-
-  // 预警阈值
-  final RxDouble dailyCostThreshold = 10.0.obs; // 日成本预警阈值
-  final RxDouble monthlyCostThreshold = 300.0.obs; // 月成本预警阈值
-
   @override
   void onInit() {
     super.onInit();
@@ -34,39 +26,8 @@ class UsageStatsService extends GetxService {
 
   /// 初始化服务
   void _initializeService() {
-    _loadCostConfig();
     _loadTodayStats();
-    Logger.info('翻译使用量统计服务初始化完成');
+    Logger.info('lxm--使用量统计服务初始化完成');
-  }
-
-  /// 加载成本配置
-  void _loadCostConfig() {
-    try {
-      final configData = _storage.read(_costConfigKey);
-      if (configData != null) {
-        costConfig.value = Map<String, double>.from(configData);
-      } else {
-        // 设置默认成本配置（每千字符的成本，单位：元）
-        costConfig.value = {
-          'translation_per_1k_chars': 0.05, // 翻译：每千字符0.05元
-          'asr_per_minute': 0.02, // ASR：每分钟0.02元
-          'tts_per_1k_chars': 0.03, // TTS：每千字符0.03元
-          'ai_summary_per_request': 0.01, // AI摘要：每次请求0.01元
-        };
-        _saveCostConfig();
-      }
-    } catch (e) {
-      Logger.error('加载成本配置失败: $e');
-    }
-  }
-
-  /// 保存成本配置
-  void _saveCostConfig() {
-    try {
-      _storage.write(_costConfigKey, costConfig.value);
-    } catch (e) {
-      Logger.error('保存成本配置失败: $e');
-    }
   }
 
   /// 加载当日统计数据
@@ -132,14 +93,12 @@ class UsageStatsService extends GetxService {
           languagePair: languagePair,
           translationCount: existing.translationCount + 1,
           sourceCharacters: existing.sourceCharacters + sourceText.length,
-          cost: existing.cost + _calculateTranslationCost(sourceText.length),
         );
       } else {
         newLanguagePairStats[languagePair] = LanguagePairStats(
           languagePair: languagePair,
           translationCount: 1,
           sourceCharacters: sourceText.length,
-          cost: _calculateTranslationCost(sourceText.length),
         );
       }
 
@@ -152,14 +111,12 @@ class UsageStatsService extends GetxService {
           apiCalls: existing.apiCalls + 1,
           sourceCharacters: existing.sourceCharacters + sourceText.length,
           ttsCharacters: existing.ttsCharacters + targetText.length,
-          cost: existing.cost + _calculateTranslationCost(sourceText.length),
         );
       } else {
         newModeStats[mode] = TranslationModeStats(
           apiCalls: 1,
           sourceCharacters: sourceText.length,
           ttsCharacters: targetText.length,
-          cost: _calculateTranslationCost(sourceText.length),
         );
       }
 
@@ -171,17 +128,9 @@ class UsageStatsService extends GetxService {
             todayStats.value.ttsTextCharacters + targetText.length,
         languagePairStats: newLanguagePairStats,
         modeStats: newModeStats,
-        estimatedCost: _calculateEstimatedCost(todayStats.value.copyWith(
-          translationApiCalls: todayStats.value.translationApiCalls + 1,
-          sourceTextCharacters:
-              todayStats.value.sourceTextCharacters + sourceText.length,
-          ttsTextCharacters:
-              todayStats.value.ttsTextCharacters + targetText.length,
-        )),
       );
 
       _saveTodayStats();
-      _checkCostThreshold();
 
       Logger.info(
           '记录翻译API调用: 源文本${sourceText.length}字符, 目标文本${targetText.length}字符');
@@ -190,7 +139,7 @@ class UsageStatsService extends GetxService {
     }
   }
 
-  /// 记录ASR API调用 - 优化版（精确计费参数）
+  /// 记录ASR API调用 - 优化版（精确统计参数）
   void recordAsrApiCall({
     required int effectiveDurationSeconds, // 有效语音时长（VAD检测的实际语音）
     required int totalDurationSeconds, // 总会话时长（包含静音）
@@ -213,12 +162,10 @@ class UsageStatsService extends GetxService {
         newModeStats[mode] = existing.copyWith(
           effectiveAudioDuration:
               existing.effectiveAudioDuration + effectiveDurationSeconds,
-          cost: existing.cost + _calculateAsrCost(effectiveDurationSeconds),
         );
       } else {
         newModeStats[mode] = TranslationModeStats(
           effectiveAudioDuration: effectiveDurationSeconds,
-          cost: _calculateAsrCost(effectiveDurationSeconds),
         );
       }
 
@@ -230,11 +177,6 @@ class UsageStatsService extends GetxService {
         totalSessionDuration:
             todayStats.value.totalSessionDuration + totalDurationSeconds,
         modeStats: newModeStats,
-        estimatedCost: _calculateEstimatedCost(todayStats.value.copyWith(
-          asrApiCalls: todayStats.value.asrApiCalls + 1,
-          effectiveAudioDuration: todayStats.value.effectiveAudioDuration +
-              effectiveDurationSeconds,
-        )),
       );
 
       _saveTodayStats();
@@ -263,10 +205,6 @@ class UsageStatsService extends GetxService {
         ttsTextCharacters: todayStats.value.ttsTextCharacters + text.length,
         totalSessionDuration:
             todayStats.value.totalSessionDuration + durationSeconds,
-        estimatedCost: _calculateEstimatedCost(todayStats.value.copyWith(
-          ttsApiCalls: todayStats.value.ttsApiCalls + 1,
-          ttsTextCharacters: todayStats.value.ttsTextCharacters + text.length,
-        )),
       );
 
       _saveTodayStats();
@@ -283,9 +221,6 @@ class UsageStatsService extends GetxService {
       // 更新当日统计
       todayStats.value = todayStats.value.copyWith(
         aiSummaryApiCalls: todayStats.value.aiSummaryApiCalls + 1,
-        estimatedCost: _calculateEstimatedCost(todayStats.value.copyWith(
-          aiSummaryApiCalls: todayStats.value.aiSummaryApiCalls + 1,
-        )),
       );
 
       _saveTodayStats();
@@ -309,45 +244,6 @@ class UsageStatsService extends GetxService {
     Logger.info('开始新的翻译会话');
   }
 
-  /// 计算预估成本 - 优化版（基于精确计费参数）
-  double _calculateEstimatedCost(TranslationUsageStats stats) {
-    double cost = 0.0;
-
-    // 翻译成本：基于源文本字符数
-    cost += (stats.sourceTextCharacters / 1000) *
-        (costConfig['translation_per_1k_chars'] ?? 0.05);
-
-    // ASR成本：基于有效音频时长
-    cost += (stats.effectiveAudioDuration / 60) *
-        (costConfig['asr_per_minute'] ?? 0.02);
-
-    // TTS成本：基于TTS文本字符数
-    cost += (stats.ttsTextCharacters / 1000) *
-        (costConfig['tts_per_1k_chars'] ?? 0.03);
-
-    // AI摘要成本（已废弃但保留兼容性）
-    cost += stats.aiSummaryApiCalls *
-        (costConfig['ai_summary_per_request'] ?? 0.01);
-
-    return cost;
-  }
-
-  /// 计算翻译成本（单次调用）
-  double _calculateTranslationCost(int sourceCharacters) {
-    return (sourceCharacters / 1000) *
-        (costConfig['translation_per_1k_chars'] ?? 0.05);
-  }
-
-  /// 计算ASR成本（单次调用）
-  double _calculateAsrCost(int durationSeconds) {
-    return (durationSeconds / 60) * (costConfig['asr_per_minute'] ?? 0.02);
-  }
-
-  /// 计算TTS成本（单次调用）
-  double _calculateTtsCost(int textCharacters) {
-    return (textCharacters / 1000) * (costConfig['tts_per_1k_chars'] ?? 0.03);
-  }
-
   /// 保存当日统计数据
   void _saveTodayStats() {
     try {
@@ -360,27 +256,6 @@ class UsageStatsService extends GetxService {
     }
   }
 
-  /// 检查成本阈值
-  void _checkCostThreshold() {
-    final todayCost = todayStats.value.estimatedCost;
-
-    if (todayCost >= dailyCostThreshold.value) {
-      _showCostWarning('今日翻译成本已达到预警阈值：¥${todayCost.toStringAsFixed(2)}');
-    }
-  }
-
-  /// 显示成本预警
-  void _showCostWarning(String message) {
-    Get.snackbar(
-      '成本预警',
-      message,
-      snackPosition: SnackPosition.TOP,
-      backgroundColor: Get.theme.colorScheme.error.withOpacity(0.1),
-      colorText: Get.theme.colorScheme.error,
-      duration: const Duration(seconds: 5),
-    );
-  }
-
   /// 获取历史统计数据
   Future<List<TranslationUsageStats>> getHistoryStats({
     required DateTime startDate,
@@ -434,39 +309,6 @@ class UsageStatsService extends GetxService {
     }
   }
 
-  /// 更新成本配置
-  void updateCostConfig(Map<String, double> newConfig) {
-    costConfig.value = newConfig;
-    _saveCostConfig();
-
-    // 重新计算当日成本
-    todayStats.value = todayStats.value.copyWith(
-      estimatedCost: _calculateEstimatedCost(todayStats.value),
-    );
-    _saveTodayStats();
-
-    Logger.info('更新成本配置完成');
-  }
-
-  /// 更新预警阈值
-  void updateThresholds({
-    double? dailyThreshold,
-    double? monthlyThreshold,
-  }) {
-    if (dailyThreshold != null) {
-      dailyCostThreshold.value = dailyThreshold;
-    }
-    if (monthlyThreshold != null) {
-      monthlyCostThreshold.value = monthlyThreshold;
-    }
-
-    // 保存阈值配置
-    _storage.write('daily_cost_threshold', dailyCostThreshold.value);
-    _storage.write('monthly_cost_threshold', monthlyCostThreshold.value);
-
-    Logger.info('更新预警阈值完成');
-  }
-
   /// 获取月度统计汇总
   Future<TranslationUsageStats> getMonthlyStats(int year, int month) async {
     try {
@@ -492,7 +334,7 @@ class UsageStatsService extends GetxService {
       int totalRecordingDuration = 0;
       int totalTtsPlayDuration = 0;
       int totalSessions = 0;
-      double totalCost = 0.0;
+      //double totalCost = 0.0;
 
       final Map<String, int> combinedLanguagePairUsage = {};
       final Map<String, int> combinedModeUsage = {};
@@ -507,7 +349,7 @@ class UsageStatsService extends GetxService {
         totalRecordingDuration += stats.audioRecordingDuration;
         totalTtsPlayDuration += stats.ttsPlaybackDuration;
         totalSessions += stats.sessionCount;
-        totalCost += stats.estimatedCost;
+        // totalCost += stats.estimatedCost;
 
         // 合并语言对使用统计
         stats.languagePairUsage.forEach((key, value) {
@@ -535,7 +377,7 @@ class UsageStatsService extends GetxService {
         ttsTextCharacters: totalTargetChars,
         totalSessionDuration: totalTtsPlayDuration,
         sessionCount: totalSessions,
-        estimatedCost: totalCost,
+        // estimatedCost: totalCost,
       );
     } catch (e) {
       Logger.error('获取月度统计失败: $e');

lib/modules/translation/controllers/translation_controller.dart

@@ -48,7 +48,7 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
   final BluetoothManager bluetoothManager = Get.find<BluetoothManager>();
   final BleManager bleManager = Get.find<BleManager>();
   final _musiceManager = Get.find<MusicManager>();
-  late final UsageStatsService _usageService;
+  late final UsageStatsService _usageService; //用量统计服务
   late final FloatingWindowManager _floatingWindowManager;
 
   // ==================== 悬浮窗相关 ====================
@@ -431,7 +431,7 @@ class TranslationController extends GetxController with WidgetsBindingObserver {
     }
   }
 
-  /// 初始化统计服务
+  /// 初始化用量统计服务
   void _initUsageService() {
     try {
       // 确保统计服务已注册

lib/modules/usage/controllers/translation_cost_controller.dart

@@ -20,7 +20,6 @@ class TranslationCostController extends GetxController {
   @override
   void onInit() {
     super.onInit();
-    _loadCurrentConfig();
   }
 
   @override
@@ -34,74 +33,11 @@ class TranslationCostController extends GetxController {
     super.onClose();
   }
 
-  void _loadCurrentConfig() {
+  void _loadCurrentConfig() {}
-    isLoading.value = true;
-    try {
-      costConfig.value = Map<String, double>.from(_usageService.costConfig);
-      dailyCostThreshold.value = _usageService.dailyCostThreshold.value;
-      monthlyCostThreshold.value = _usageService.monthlyCostThreshold.value;
-      translationCostController.text =
-          (costConfig['translation_per_1k_chars'] ?? 0.05).toString();
-      asrCostController.text =
-          (costConfig['asr_per_minute'] ?? 0.02).toString();
-      ttsCostController.text =
-          (costConfig['tts_per_1k_chars'] ?? 0.03).toString();
-      aiSummaryCostController.text =
-          (costConfig['ai_summary_per_request'] ?? 0.01).toString();
-      dailyThresholdController.text = dailyCostThreshold.value.toString();
-      monthlyThresholdController.text = monthlyCostThreshold.value.toString();
-      Logger.info('成本配置加载完成');
-    } catch (e) {
-      Logger.error('加载成本配置失败: $e');
-      _showErrorSnackbar('加载配置失败');
-    } finally {
-      isLoading.value = false;
-    }
-  }
 
-  Future<void> saveConfig() async {
+  Future<void> saveConfig() async {}
-    if (isSaving.value) return;
-    isSaving.value = true;
-    try {
-      if (!_validateInputs()) {
-        return;
-      }
-      final newCostConfig = {
-        'translation_per_1k_chars':
-            double.parse(translationCostController.text),
-        'asr_per_minute': double.parse(asrCostController.text),
-        'tts_per_1k_chars': double.parse(ttsCostController.text),
-        'ai_summary_per_request': double.parse(aiSummaryCostController.text),
-      };
-      final newDailyThreshold = double.parse(dailyThresholdController.text);
-      final newMonthlyThreshold = double.parse(monthlyThresholdController.text);
-      _usageService.updateCostConfig(newCostConfig);
-      _usageService.updateThresholds(
-        dailyThreshold: newDailyThreshold,
-        monthlyThreshold: newMonthlyThreshold,
-      );
-      costConfig.value = newCostConfig;
-      dailyCostThreshold.value = newDailyThreshold;
-      monthlyCostThreshold.value = newMonthlyThreshold;
-      _showSuccessSnackbar('配置保存成功');
-      Logger.info('成本配置保存成功');
-    } catch (e) {
-      Logger.error('保存成本配置失败: $e');
-      _showErrorSnackbar('保存配置失败');
-    } finally {
-      isSaving.value = false;
-    }
-  }
 
-  void resetToDefault() {
+  void resetToDefault() {}
-    translationCostController.text = '0.05';
-    asrCostController.text = '0.02';
-    ttsCostController.text = '0.03';
-    aiSummaryCostController.text = '0.01';
-    dailyThresholdController.text = '10.0';
-    monthlyThresholdController.text = '300.0';
-    _showInfoSnackbar('已重置为默认配置，请点击保存生效');
-  }
 
   bool _validateInputs() {
     try {
@@ -134,40 +70,11 @@ class TranslationCostController extends GetxController {
   }
 
   double calculateEstimatedMonthlyCost() {
-    try {
+    return 0.0;
-      final dailyStats = _usageService.todayStats.value;
-      if (dailyStats.estimatedCost == 0) return 0.0;
-      return dailyStats.estimatedCost * 30;
-    } catch (e) {
-      Logger.error('计算预估月成本失败: $e');
-      return 0.0;
-    }
   }
 
   List<String> getCostSavingTips() {
-    final tips = <String>[];
+    return [];
-    try {
-      final dailyStats = _usageService.todayStats.value;
-      if (dailyStats.translationApiCalls > 100) {
-        tips.add('考虑批量翻译以减少API调用次数');
-      }
-      if (dailyStats.ttsApiCalls > 50) {
-        tips.add('可以关闭自动语音播放以节省TTS成本');
-      }
-      if (dailyStats.aiSummaryApiCalls > 10) {
-        tips.add('AI摘要功能按需使用，避免频繁调用');
-      }
-      if (dailyStats.effectiveAudioDuration > 3600) {
-        tips.add('长时间录音会增加ASR成本，建议分段录音');
-      }
-      if (tips.isEmpty) {
-        tips.add('您的使用习惯很好，继续保持！');
-      }
-    } catch (e) {
-      Logger.error('获取成本节约建议失败: $e');
-      tips.add('暂无建议');
-    }
-    return tips;
   }
 
   void _showSuccessSnackbar(String message) {

lib/modules/usage/controllers/translation_stats_controller.dart

@@ -39,17 +39,11 @@ class TranslationStatsController extends GetxController {
       _updateChartData();
     });
 
-    ever(_usageService.costConfig, (config) {
-      costConfig.value = config;
-    });
 
-    ever(_usageService.dailyCostThreshold, (threshold) {
-      dailyCostThreshold.value = threshold;
-    });
 
-    ever(_usageService.monthlyCostThreshold, (threshold) {
+
-      monthlyCostThreshold.value = threshold;
+
-    });
+
 
     loadAllStats();
   }
@@ -141,7 +135,7 @@ class TranslationStatsController extends GetxController {
     int totalRecordingDuration = 0;
     int totalTtsPlayDuration = 0;
     int totalSessions = 0;
-    double totalCost = 0.0;
+
 
     final Map<String, int> combinedLanguagePairUsage = {};
     final Map<String, int> combinedModeUsage = {};
@@ -156,7 +150,7 @@ class TranslationStatsController extends GetxController {
       totalRecordingDuration += stats.effectiveAudioDuration;
       totalTtsPlayDuration += stats.totalSessionDuration;
       totalSessions += stats.sessionCount;
-      totalCost += stats.estimatedCost;
+
 
       stats.languagePairUsage.forEach((key, value) {
         combinedLanguagePairUsage[key] =
@@ -182,7 +176,7 @@ class TranslationStatsController extends GetxController {
       effectiveAudioDuration: totalRecordingDuration,
       totalSessionDuration: totalTtsPlayDuration,
       sessionCount: totalSessions,
-      estimatedCost: totalCost,
+      estimatedCost: 0.0,
     );
   }
 
@@ -194,7 +188,7 @@ class TranslationStatsController extends GetxController {
         data.add({
           'label': '今日',
           'apiCalls': todayStats.value.totalApiCalls,
-          'cost': todayStats.value.estimatedCost,
+          'cost': 0.0,
           'characters': todayStats.value.totalCharacterCount,
         });
         break;
@@ -202,7 +196,7 @@ class TranslationStatsController extends GetxController {
         data.add({
           'label': '本周',
           'apiCalls': weekStats.value.totalApiCalls,
-          'cost': weekStats.value.estimatedCost,
+          'cost': 0.0,
           'characters': weekStats.value.totalCharacterCount,
         });
         break;
@@ -210,7 +204,7 @@ class TranslationStatsController extends GetxController {
         data.add({
           'label': '本月',
           'apiCalls': monthStats.value.totalApiCalls,
-          'cost': monthStats.value.estimatedCost,
+          'cost': 0.0,
           'characters': monthStats.value.totalCharacterCount,
         });
         break;
@@ -219,7 +213,7 @@ class TranslationStatsController extends GetxController {
           data.add({
             'label': '${stats.date.month}/${stats.date.day}',
             'apiCalls': stats.totalApiCalls,
-            'cost': stats.estimatedCost,
+            'cost': 0.0,
             'characters': stats.totalCharacterCount,
           });
         }

lib/modules/usage/views/translation_stats_view.dart

@@ -103,8 +103,6 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                 SizedBox(height: 16.h),
                 _buildDataVolumeCard(isDarkMode),
                 SizedBox(height: 16.h),
-                _buildCostCard(isDarkMode),
-                SizedBox(height: 16.h),
                 _buildUsageBehaviorCard(isDarkMode),
               ],
             ),
@@ -302,15 +300,7 @@ class TranslationStatsView extends GetView<TranslationStatsController> {
                       isDarkMode,
                     ),
                   ),
-                  Expanded(
+
-                    child: _buildStatItem(
-                      '预估成本',
-                      controller
-                          .formatCost(controller.currentStats.estimatedCost),
-                      Icons.attach_money,
-                      isDarkMode,
-                    ),
-                  ),
                 ],
               )),
           SizedBox(height: 12.h),