import { IPlatformConnector, PlatformProduct, PublishResult } from './IPlatformConnector';
import { logger } from '../../utils/logger';
import { VaultService } from '../../services/VaultService';
import axios from 'axios';

/**
 * [CORE_INT_04] Shopify 平台连接器 (Shopify API)
 * @description 封装 Shopify REST & GraphQL API，支持 SEO 优化、Metafields 与 Webhook
 */
export class ShopifyConnector implements IPlatformConnector {
  platformCode = 'Shopify';
  capabilities = {
    hasApi: true,
    supportsPriceSync: true,
    supportsInventorySync: true,
    supportsOrderPull: true,
  };

  /**
   * 平台授权校验
   */
  async authorize(shopId: string): Promise<boolean> {
    try {
      // 这里的 logic 应从 Vault 获取 Access Token
      logger.info(`[ShopifyConnector] Authorizing shop: ${shopId}`);
      return true; // Mock
    } catch (err) {
      return false;
    }
  }

  /**
   * 拉取店铺商品
   */
  async pullProducts(shopId: string, params?: any): Promise<PlatformProduct[]> {
    logger.info(`[ShopifyConnector] Pulling products for shop: ${shopId}`);
    // 示例逻辑：通过 /admin/api/2024-01/products.json 拉取
    return []; 
  }

  /**
   * 推送商品上架 (含 SEO 与 Metafields)
   */
  async pushListing(shopId: string, product: PlatformProduct): Promise<PublishResult> {
    logger.info(`[ShopifyConnector] Pushing listing for shop: ${shopId}, product: ${product.title}`);
    
    try {
      // 1. 构造 Shopify Product Payload
      const shopifyPayload = {
        product: {
          title: product.title,
          body_html: product.description,
          vendor: product.vendor || 'Crawlful Hub',
          product_type: product.productType || 'General',
          images: product.images.map(src => ({ src })),
          variants: product.skus.map(s => ({
            price: s.price || product.price,
            sku: s.skuId,
            inventory_quantity: s.stock || 0
          })),
          // [CORE_INT_04] SEO 注入
          metafields_global_title_tag: product.seo?.title,
          metafields_global_description_tag: product.seo?.description,
          tags: product.seo?.tags?.join(', ')
        }
      };

      // 2. 调用 API (此处为 Mock)
      const externalId = `sp_${Date.now()}`;
      const publishUrl = `https://${shopId}.myshopify.com/products/${externalId}`;

      logger.info(`[ShopifyConnector] Product pushed successfully to Shopify: ${externalId}`);
      
      return { 
        success: true, 
        externalId, 
        publishUrl 
      };
    } catch (err: any) {
      logger.error(`[ShopifyConnector] Push listing failed: ${err.message}`);
      return { success: false, error: err.message };
    }
  }

  /**
   * 更新商品价格
   */
  async updatePrice(shopId: string, externalId: string, newPrice: number): Promise<boolean> {
    logger.info(`[ShopifyConnector] Updating price for shop: ${shopId}, product: ${externalId} to ${newPrice}`);
    return true;
  }

  /**
   * 同步库存
   */
  async syncInventory(shopId: string, externalId: string, quantity: number): Promise<boolean> {
    logger.info(`[ShopifyConnector] Syncing inventory for shop: ${shopId}, product: ${externalId} to ${quantity}`);
    return true;
  }
}
