import db from '../config/database';
import { logger } from '../utils/logger';
import { AuditService } from './AuditService';

/**
 * [BIZ_AUTO_15] 供应商生产车间实时视频流异常感知
 * 负责接收 AI 视觉分析产生的工厂生产事件（如停工、事故、异常操作），并自动登记风险
 */
export class VisionFactoryService {
  /**
   * 处理视觉感知到的工厂事件
   */
  static async handleVisionEvent(
    tenantId: string, 
    supplierId: string, 
    cameraId: string, 
    eventType: 'IDLE' | 'ACCIDENT' | 'ANOMALY', 
    confidence: number,
    description: string,
    traceId: string
  ): Promise<void> {
    // 1. 过滤低置信度事件
    if (confidence < 0.75) return;

    // 2. 持久化视觉事件记录
    const [id] = await db('cf_vision_factory').insert({
      tenant_id: tenantId,
      supplier_id: supplierId,
      camera_id: cameraId,
      event_type: eventType,
      confidence,
      event_description: description,
      status: 'UNHANDLED'
    });

    // 3. 联动风险雷达 (Risk Radar) 进行预警
    if (eventType === 'ACCIDENT' || eventType === 'ANOMALY') {
      await db('cf_risk_radar').insert({
        tenant_id: tenantId,
        product_id: 'GLOBAL', // 此时可能尚未关联具体产品
        type: 'FACTORY_SAFETY',
        severity: eventType === 'ACCIDENT' ? 'CRITICAL' : 'HIGH',
        message: `Vision alert from Supplier ${supplierId}: ${description}`,
        status: 'ACTIVE'
      });

      // 审计记录
      await AuditService.log({
        tenantId,
        userId: 'SYSTEM',
        module: 'FACTORY',
        action: 'VISION_FACTORY_ANOMALY',
        resourceType: 'VISION_EVENT',
        resourceId: id.toString(),
        traceId,
        afterSnapshot: { eventType, confidence },
        result: 'success',
        source: 'node',
        metadata: { cameraId, description }
      });
    }
  }

  /**
   * [BIZ_PROD_12] 生成符合目标市场审美的营销图
   * @description 利用 DALL-E 3 或 Stable Diffusion (此处模拟) 生成本地化素材
   */
  static async generateMarketingImage(data: {
    originalImageUrl: string;
    productTitle: string;
    targetMarket: string;
    aestheticStyle: string;
  }): Promise<string> {
    logger.info(`[VisionFactory] Generating marketing image for ${data.targetMarket} using ${data.aestheticStyle} style`);
    
    // 实际业务中应对接 OpenAI DALL-E 3 或本地 SD 实例
    // 此处返回模拟生成的 URL
    const mockGeneratedUrl = `${data.originalImageUrl}?style=${data.aestheticStyle}&market=${data.targetMarket}`;
    
    return mockGeneratedUrl;
  }
}
