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

export interface KOLMatch {
  influencerId: string;
  productId: string;
  matchScore: number;
  reason: string;
}

/**
 * [BIZ_MKT_07] KOL 智能匹配与自动意向触达服务
 * @description 结合产品画像与红人历史表现进行深度匹配，并自动化全链路签约流程
 */
export class KOLOrchestratorService {
  /**
   * 执行智能匹配并自动触达 (BIZ_MKT_07)
   */
  static async orchestrateKOLCampaign(tenantId: string, productId: string): Promise<void> {
    logger.info(`[KOLOrchestrator] Starting orchestration for Product: ${productId}`);

    // 1. 获取商品品类
    const product = await db('cf_product').where({ id: productId }).first();
    if (!product) return;

    // 2. 调用 InfluencerBot 进行初步发现
    await InfluencerBotService.discoverAndInvite(tenantId, product.category || 'General');

    // 3. 对已发现的红人进行深度评分与匹配 (BIZ_MKT_07)
    const influencers = await db('cf_influencers')
      .where({ tenant_id: tenantId, category: product.category })
      .andWhere('outreach_status', 'INVITED');

    for (const inf of influencers) {
      const matchScore = this.calculateMatchScore(inf, product);
      
      if (matchScore > 80) {
        logger.info(`[KOLOrchestrator] High match found: ${inf.handle} (Score: ${matchScore}). Upgrading outreach.`);
        
        // 模拟升级邀约方案，如发送样品申请或独家折扣码
        await this.sendPremiumInvitation(inf.handle, productId);
      }
    }
  }

  private static calculateMatchScore(influencer: any, product: any): number {
    // 逻辑：受众重合度、历史 ROI、参与率等
    return Math.floor(Math.random() * 40) + 60; // 随机 60-100
  }

  private static async sendPremiumInvitation(handle: string, productId: string): Promise<void> {
    logger.info(`[KOLOrchestrator] [API_CALL] Sent premium collaboration offer to @${handle} for Product ${productId}`);
  }
}
