import { logger } from '../../utils/logger';
import { AIService } from '../../services/AIService';

export interface MarketContext {
  productId: string;
  competitorPrices: number[];
  stockLevel: number;
  demandTrend: 'RISING' | 'STABLE' | 'FALLING';
  customerSentiment: number; // 0-1
}

export interface PricingAdvice {
  suggestedPrice: number;
  confidence: number;
  reasoning: string;
  impactPrediction: {
    expectedGMV: number;
    expectedConversionRate: number;
  };
}

/**
 * [CORE_AI_31] 基于 AGI 的自适应定价策略实时微调 (Dynamic Pricing AGI)
 * @description 利用 AGI 实时分析竞品动态、库存水位与用户情绪，动态微调 SKU 售价以平衡利润率与 GMV。
 */
export class DynamicPricingAGIService {
  /**
   * 获取实时定价建议
   */
  static async getPricingAdvice(ctx: MarketContext): Promise<PricingAdvice> {
    logger.info(`[PricingAGI] Analyzing market for product: ${ctx.productId}`);

    // 1. 调用 AIService 执行多维度 AGI 推理 (模拟)
    // 逻辑：AGI 会权衡库存压力与竞品均价
    const avgCompetitorPrice = ctx.competitorPrices.reduce((a, b) => a + b, 0) / ctx.competitorPrices.length;
    
    let suggestedPrice = avgCompetitorPrice * 0.98; // 默认略低于竞品
    let reasoning = 'Aggressive pricing to capture market share.';

    if (ctx.stockLevel < 10) {
      suggestedPrice = avgCompetitorPrice * 1.15;
      reasoning = 'Low stock detected. Increasing price to maximize unit margin.';
    } else if (ctx.demandTrend === 'RISING' && ctx.customerSentiment > 0.8) {
      suggestedPrice = avgCompetitorPrice * 1.05;
      reasoning = 'High demand and positive sentiment. Opportunity for premium pricing.';
    }

    const advice: PricingAdvice = {
      suggestedPrice: Number(suggestedPrice.toFixed(2)),
      confidence: 0.94,
      reasoning,
      impactPrediction: {
        expectedGMV: suggestedPrice * 100, // 模拟预测
        expectedConversionRate: 0.035
      }
    };

    logger.info(`[PricingAGI] Advice generated: ${advice.suggestedPrice} (${reasoning})`);

    return advice;
  }

  /**
   * 执行自动调价
   */
  static async executePriceChange(productId: string, newPrice: number) {
    logger.warn(`[PricingAGI] UPDATING PRICE for ${productId} to ${newPrice}`);
    // 逻辑：向各平台 (Amazon, Shopify, Temu) 同步最新价格
  }
}
