import { StepStatus, StepResult } from './PipelineTypes';
import { logger } from '../../utils/logger';
import { AIService } from '../../services/AIService';

export interface HealingAction {
  type: 'RETRY' | 'SWITCH_PROXY' | 'SOLVE_CAPTCHA' | 'NOTIFY_HUMAN';
  config?: any;
}

/**
 * [CORE_AUTO_02] AI 代理错误自愈协议 (AI Agent Error Self-Healing)
 * @description 当流水线步骤失败时，利用 AI 诊断错误并自动执行修复策略
 */
export class SelfHealingAgent {
  /**
   * 诊断并建议修复方案
   */
  static async diagnoseAndHeal(stepRecord: any, error: string): Promise<HealingAction> {
    logger.warn(`[SelfHealingAgent] Diagnosing failure for step ${stepRecord.id}: ${error}`);

    // 1. 调用 AI 进行错误模式识别
    try {
      const diagnosis = await AIService.diagnosePipelineError({
        stepType: stepRecord.type,
        error: error,
        config: stepRecord.config
      });

      if (diagnosis.canHeal && diagnosis.suggestedAction) {
        logger.info(`[SelfHealingAgent] AI suggests healing action: ${diagnosis.suggestedAction}`);
        return {
          type: diagnosis.suggestedAction as HealingAction['type'],
          config: diagnosis.actionConfig
        };
      }
    } catch (aiErr: any) {
      logger.error(`[SelfHealingAgent] AI diagnosis failed: ${aiErr.message}`);
    }

    // 2. 默认降级逻辑
    return { type: 'NOTIFY_HUMAN' };
  }

  /**
   * 执行自愈动作
   */
  static async executeHealing(action: HealingAction): Promise<boolean> {
    switch (action.type) {
      case 'RETRY':
        return true; // 触发重试逻辑
      case 'SWITCH_PROXY':
        logger.info('[SelfHealingAgent] Switching proxy...');
        // 实际逻辑：更新 Proxy 池配置
        return true;
      case 'SOLVE_CAPTCHA':
        logger.info('[SelfHealingAgent] Solving CAPTCHA...');
        // 实际逻辑：调用打码平台接口
        return true;
      case 'NOTIFY_HUMAN':
      default:
        return false;
    }
  }
}
