import { Job } from 'bullmq';
import { emitEvent } from '../eventBus';

// 处理任务的核心逻辑
export const processJob = async (job: Job): Promise<any> => {
  try {
    console.log(`[Job Processor] Processing job: ${job.name}`, job.data);
    
    // 根据任务类型执行不同的处理逻辑
    switch (job.name) {
      case 'AI_OPTIMIZE_PRODUCT':
        // 模拟AI优化商品
        await new Promise(resolve => setTimeout(resolve, 1000));
        
        // 触发AI任务完成事件
        emitEvent('AI_TASK_COMPLETED', {
          productId: job.data.productId
        }, 'BullMQ Worker', job.data.merchantId);
        
        return { success: true, message: 'AI optimization completed' };
        
      case 'SYNC_INVENTORY':
        // 模拟库存同步
        await new Promise(resolve => setTimeout(resolve, 500));
        
        // 触发库存更新事件
        emitEvent('INVENTORY_UPDATED', {}, 'BullMQ Worker');
        
        return { success: true, message: 'Inventory synced' };
        
      case 'CALCULATE_PROFIT':
        // 模拟利润计算
        await new Promise(resolve => setTimeout(resolve, 800));
        
        return { success: true, message: 'Profit calculated' };
        
      case 'GENERATE_BILL':
        // 模拟账单生成
        await new Promise(resolve => setTimeout(resolve, 500));
        
        // 触发账单生成事件
        emitEvent('BILLING_GENERATED', {
          merchantId: job.data.merchantId
        }, 'BullMQ Worker', job.data.merchantId);
        
        return { success: true, message: 'Bill generated' };
        
      case 'UPDATE_AD_BUDGET':
        // 模拟更新广告预算
        await new Promise(resolve => setTimeout(resolve, 300));
        
        return { success: true, message: 'Ad budget updated' };
        
      case 'STOP_AD':
        // 模拟停止广告
        await new Promise(resolve => setTimeout(resolve, 200));
        
        return { success: true, message: 'Ad stopped' };
        
      default:
        console.log(`[Job Processor] Unknown job type: ${job.name}`);
        return { success: false, message: 'Unknown job type' };
    }
    
  } catch (error) {
    console.error(`[Job Processor] Error processing job ${job.name}:`, error);
    throw error;
  }
};

export default processJob;
