import { hilog } from '@kit.PerformanceAnalysisKit';
import { Context } from '@kit.AbilityKit';
import { PreferencesUtil } from '../utils/PreferencesUtil';
import { GlobalWidgetManager } from './GlobalWidgetManager';

const TAG = 'WidgetRegistrationFix';

/**
 * 卡片注册修复工具
 * 用于修复卡片注册和持久化问题
 */
export class WidgetRegistrationFix {
  private static instance: WidgetRegistrationFix | null = null;
  private preferencesUtil: PreferencesUtil = PreferencesUtil.getInstance();
  private globalWidgetManager: GlobalWidgetManager = GlobalWidgetManager.getInstance();

  private constructor() {}

  public static getInstance(): WidgetRegistrationFix {
    if (!WidgetRegistrationFix.instance) {
      WidgetRegistrationFix.instance = new WidgetRegistrationFix();
    }
    return WidgetRegistrationFix.instance;
  }

  /**
   * 执行卡片注册修复
   */
  public async fixWidgetRegistration(context: Context): Promise<void> {
    try {
      hilog.info(0x0000, TAG, '🔧 开始卡片注册修复...');
      
      // 同步活跃卡片到持久化存储
      await this.syncActiveWidgetsToPersistence(context);
      
      hilog.info(0x0000, TAG, '✅ 卡片注册修复完成');
      
    } catch (error) {
      hilog.error(0x0000, TAG, `❌ 卡片注册修复失败: ${error}`);
    }
  }



  /**
   * 同步活跃卡片到持久化存储
   */
  private async syncActiveWidgetsToPersistence(context: Context): Promise<void> {
    try {
      const prefs = await this.preferencesUtil.getPreferences(context);
      const persistedIds = await this.preferencesUtil.getFormIds(prefs);
      const activeWidgets = this.globalWidgetManager.getActiveWidgets();
      const activeIds = Array.from(activeWidgets.keys());
      
      hilog.info(0x0000, TAG, `📊 持久化: ${persistedIds.length}个, 活跃: ${activeIds.length}个`);
      
      // 将活跃但未持久化的卡片添加到持久化存储
      const missingInPersistence = activeIds.filter(id => !persistedIds.includes(id));
      if (missingInPersistence.length > 0) {
        hilog.info(0x0000, TAG, `🔧 同步 ${missingInPersistence.length} 个活跃卡片到持久化存储`);
        
        // 串行处理，避免并发问题
        for (const formId of missingInPersistence) {
          try {
            await this.preferencesUtil.addFormId(prefs, formId);
            hilog.info(0x0000, TAG, `✅ 同步卡片成功: ${formId}`);
          } catch (error) {
            hilog.error(0x0000, TAG, `❌ 同步卡片失败 ${formId}: ${error}`);
          }
        }
      }
      
    } catch (error) {
      hilog.error(0x0000, TAG, `❌ 同步活跃卡片失败: ${error}`);
    }
  }


}