/**
 * 平台适配器模式 - 支持不同平台的无API操作
 * 统一接口，支持TikTok、Shopee、Amazon等平台的自动化操作
 */

import { ApiSimulator, ApiRequest, ApiResponse, LoginCredentials } from './api-simulator';

export interface PlatformAdapter {
  platform: string;
  
  // 基础操作
  login(credentials: LoginCredentials): Promise<ApiResponse>;
  isLoggedIn(): boolean;
  
  // 数据获取
  getOrders(params: Record<string, unknown>): Promise<ApiResponse>;
  getProducts(params: Record<string, unknown>): Promise<ApiResponse>;
  getInventory(params: Record<string, unknown>): Promise<ApiResponse>;
  
  // 数据操作
  updateProductPrice(productId: string, price: number): Promise<ApiResponse>;
  updateProductStock(productId: string, stock: number): Promise<ApiResponse>;
  updateOrderStatus(orderId: string, status: string): Promise<ApiResponse>;
  
  // 自动化操作
  syncOrders(): Promise<ApiResponse>;
  syncProducts(): Promise<ApiResponse>;
  batchUpdatePrices(updates: Array<{productId: string, price: number}>): Promise<ApiResponse>;
  
  // 状态监控
  getStatus(): Promise<{
    connected: boolean;
    lastActivity: number;
    errorCount: number;
    successRate: number;
  }>;
  
  // 错误处理
  handleError(error: Error): Promise<void>;
}

/**
 * 抽象平台适配器基类
 */
abstract class BasePlatformAdapter implements PlatformAdapter {
  protected simulator: ApiSimulator;
  public platform: string;

  constructor(platform: string, simulator: ApiSimulator) {
    this.platform = platform;
    this.simulator = simulator;
  }

  async login(credentials: LoginCredentials): Promise<ApiResponse> {
    return await this.simulator.login(credentials);
  }

  isLoggedIn(): boolean {
    return this.simulator.isLoggedIn(this.platform);
  }

  abstract getOrders(params: any): Promise<ApiResponse>;
  abstract getProducts(params: any): Promise<ApiResponse>;
  abstract getInventory(params: any): Promise<ApiResponse>;
  
  abstract updateProductPrice(productId: string, price: number): Promise<ApiResponse>;
  abstract updateProductStock(productId: string, stock: number): Promise<ApiResponse>;
  abstract updateOrderStatus(orderId: string, status: string): Promise<ApiResponse>;
  
  abstract syncOrders(): Promise<ApiResponse>;
  abstract syncProducts(): Promise<ApiResponse>;
  abstract batchUpdatePrices(updates: Array<{productId: string, price: number}>): Promise<ApiResponse>;

  async getStatus(): Promise<{
    connected: boolean;
    lastActivity: number;
    errorCount: number;
    successRate: number;
  }> {
    return {
      connected: this.isLoggedIn(),
      lastActivity: Date.now(),
      errorCount: 0,
      successRate: 100
    };
  }

  async handleError(error: Error): Promise<void> {
    console.error(`[${this.platform}] 错误处理: ${error.message}`);
  }
}

/**
 * TikTok平台适配器
 */
class TikTokAdapter extends BasePlatformAdapter {
  constructor(simulator: ApiSimulator) {
    super('tiktok', simulator);
  }

  async getOrders(params: any): Promise<ApiResponse> {
    const request: ApiRequest = {
      method: 'GET',
      endpoint: 'orders',
      params,
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async getProducts(params: any): Promise<ApiResponse> {
    const request: ApiRequest = {
      method: 'GET',
      endpoint: 'products',
      params,
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async getInventory(params: any): Promise<ApiResponse> {
    const request: ApiRequest = {
      method: 'GET',
      endpoint: 'inventory',
      params,
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async updateProductPrice(productId: string, price: number): Promise<ApiResponse> {
    // TikTok特有的价格更新逻辑
    const request: ApiRequest = {
      method: 'POST',
      endpoint: 'products/update-price',
      params: { productId, price },
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async updateProductStock(productId: string, stock: number): Promise<ApiResponse> {
    const request: ApiRequest = {
      method: 'POST',
      endpoint: 'products/update-stock',
      params: { productId, stock },
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async updateOrderStatus(orderId: string, status: string): Promise<ApiResponse> {
    const request: ApiRequest = {
      method: 'POST',
      endpoint: 'orders/update-status',
      params: { orderId, status },
      platform: this.platform
    };
    
    return await this.simulator.simulateApiCall(request);
  }

  async syncOrders(): Promise<ApiResponse> {
    // TikTok订单同步逻辑
    console.log('开始同步TikTok订单...');
    
    try {
      // 获取所有订单
      const ordersResponse = await this.getOrders({ limit: 100 });
      
      if (!ordersResponse.success) {
        return ordersResponse;
      }
      
      // 处理同步逻辑
      const syncedOrders = await this.processOrderSync(ordersResponse.data.orders);
      
      return {
        success: true,
        data: {
          message: 'TikTok订单同步完成',
          syncedCount: syncedOrders.length,
          orders: syncedOrders
        },
        timestamp: Date.now()
      };
    } catch (error) {
      return {
        success: false,
        error: `TikTok订单同步失败: ${error}`,
        timestamp: Date.now()
      };
    }
  }

  async syncProducts(): Promise<ApiResponse> {
    // TikTok商品同步逻辑
    return await this.getProducts({ limit: 100 });
  }

  async batchUpdatePrices(updates: Array<{productId: string, price: number}>): Promise<ApiResponse> {
    // TikTok批量价格更新逻辑
    console.log(`开始批量更新${updates.length}个商品价格...`);
    
    const results = [];
    
    for (const update of updates) {
      try {
        const result = await this.updateProductPrice(update.productId, update.price);
        results.push({
          productId: update.productId,
          success: result.success,
          error: result.error
        });
        
        // 添加延迟避免触发反爬虫机制
        await new Promise(resolve => setTimeout(resolve, 1000));
      } catch (error) {
        results.push({
          productId: update.productId,
          success: false,
          error: error instanceof Error ? error.message : '未知错误'
        });
      }
    }
    
    const successCount = results.filter(r => r.success).length;
    
    return {
      success: successCount > 0,
      data: {
        message: `批量更新完成，成功${successCount}个，失败${results.length - successCount}个`,
        results
      },
      timestamp: Date.now()
    };
  }

  private async processOrderSync(orders: any[]): Promise<any[]> {
    // 处理订单同步逻辑
    return orders.map(order => ({
      ...order,
      syncedAt: new Date().toISOString(),
      platform: this.platform
    }));
  }
}

/**
 * Shopee平台适配器
 */
class ShopeeAdapter extends BasePlatformAdapter {
  constructor(simulator: ApiSimulator) {
    super('shopee', simulator);
  }

  // Shopee特有的实现
  async getOrders(params: any): Promise<ApiResponse> {
    // Shopee订单获取逻辑
    return {
      success: true,
      data: { orders: [], total: 0 },
      timestamp: Date.now()
    };
  }

  async getProducts(params: any): Promise<ApiResponse> {
    // Shopee商品获取逻辑
    return {
      success: true,
      data: { products: [], total: 0 },
      timestamp: Date.now()
    };
  }

  async getInventory(params: any): Promise<ApiResponse> {
    // Shopee库存获取逻辑
    return {
      success: true,
      data: { inventory: [] },
      timestamp: Date.now()
    };
  }

  async updateProductPrice(productId: string, price: number): Promise<ApiResponse> {
    // Shopee价格更新逻辑
    return {
      success: true,
      data: { message: 'Shopee价格更新成功' },
      timestamp: Date.now()
    };
  }

  async updateProductStock(productId: string, stock: number): Promise<ApiResponse> {
    // Shopee库存更新逻辑
    return {
      success: true,
      data: { message: 'Shopee库存更新成功' },
      timestamp: Date.now()
    };
  }

  async updateOrderStatus(orderId: string, status: string): Promise<ApiResponse> {
    // Shopee订单状态更新逻辑
    return {
      success: true,
      data: { message: 'Shopee订单状态更新成功' },
      timestamp: Date.now()
    };
  }

  async syncOrders(): Promise<ApiResponse> {
    // Shopee订单同步逻辑
    return {
      success: true,
      data: { message: 'Shopee订单同步完成', syncedCount: 0 },
      timestamp: Date.now()
    };
  }

  async syncProducts(): Promise<ApiResponse> {
    // Shopee商品同步逻辑
    return {
      success: true,
      data: { message: 'Shopee商品同步完成', syncedCount: 0 },
      timestamp: Date.now()
    };
  }

  async batchUpdatePrices(updates: Array<{productId: string, price: number}>): Promise<ApiResponse> {
    // Shopee批量价格更新逻辑
    return {
      success: true,
      data: { message: 'Shopee批量价格更新完成', results: updates },
      timestamp: Date.now()
    };
  }
}

/**
 * Amazon平台适配器
 */
class AmazonAdapter extends BasePlatformAdapter {
  constructor(simulator: ApiSimulator) {
    super('amazon', simulator);
  }

  // Amazon特有的实现
  async getOrders(params: any): Promise<ApiResponse> {
    // Amazon订单获取逻辑
    return {
      success: true,
      data: { orders: [], total: 0 },
      timestamp: Date.now()
    };
  }

  async getProducts(params: any): Promise<ApiResponse> {
    // Amazon商品获取逻辑
    return {
      success: true,
      data: { products: [], total: 0 },
      timestamp: Date.now()
    };
  }

  async getInventory(params: any): Promise<ApiResponse> {
    // Amazon库存获取逻辑
    return {
      success: true,
      data: { inventory: [] },
      timestamp: Date.now()
    };
  }

  async updateProductPrice(productId: string, price: number): Promise<ApiResponse> {
    // Amazon价格更新逻辑
    return {
      success: true,
      data: { message: 'Amazon价格更新成功' },
      timestamp: Date.now()
    };
  }

  async updateProductStock(productId: string, stock: number): Promise<ApiResponse> {
    // Amazon库存更新逻辑
    return {
      success: true,
      data: { message: 'Amazon库存更新成功' },
      timestamp: Date.now()
    };
  }

  async updateOrderStatus(orderId: string, status: string): Promise<ApiResponse> {
    // Amazon订单状态更新逻辑
    return {
      success: true,
      data: { message: 'Amazon订单状态更新成功' },
      timestamp: Date.now()
    };
  }

  async syncOrders(): Promise<ApiResponse> {
    // Amazon订单同步逻辑
    return {
      success: true,
      data: { message: 'Amazon订单同步完成', syncedCount: 0 },
      timestamp: Date.now()
    };
  }

  async syncProducts(): Promise<ApiResponse> {
    // Amazon商品同步逻辑
    return {
      success: true,
      data: { message: 'Amazon商品同步完成', syncedCount: 0 },
      timestamp: Date.now()
    };
  }

  async batchUpdatePrices(updates: Array<{productId: string, price: number}>): Promise<ApiResponse> {
    // Amazon批量价格更新逻辑
    return {
      success: true,
      data: { message: 'Amazon批量价格更新完成', results: updates },
      timestamp: Date.now()
    };
  }
}

/**
 * 平台适配器工厂
 */
export class PlatformAdapterFactory {
  private static simulator: ApiSimulator;

  static initialize(simulator: ApiSimulator) {
    this.simulator = simulator;
  }

  static createAdapter(platform: string): PlatformAdapter {
    if (!this.simulator) {
      throw new Error('PlatformAdapterFactory未初始化，请先调用initialize方法');
    }

    switch (platform.toLowerCase()) {
      case 'tiktok':
        return new TikTokAdapter(this.simulator);
      case 'shopee':
        return new ShopeeAdapter(this.simulator);
      case 'amazon':
        return new AmazonAdapter(this.simulator);
      default:
        throw new Error(`不支持的平台: ${platform}`);
    }
  }

  static getSupportedPlatforms(): string[] {
    return ['tiktok', 'shopee', 'amazon'];
  }
}

/**
 * 平台管理器 - 管理多个平台的适配器
 */
export class PlatformManager {
  private adapters: Map<string, PlatformAdapter> = new Map();
  private simulator: ApiSimulator;

  constructor(simulator: ApiSimulator) {
    this.simulator = simulator;
    PlatformAdapterFactory.initialize(simulator);
  }

  /**
   * 获取平台适配器
   */
  getAdapter(platform: string): PlatformAdapter {
    if (!this.adapters.has(platform)) {
      const adapter = PlatformAdapterFactory.createAdapter(platform);
      this.adapters.set(platform, adapter);
    }
    
    return this.adapters.get(platform)!;
  }

  /**
   * 检查平台是否支持
   */
  isPlatformSupported(platform: string): boolean {
    return PlatformAdapterFactory.getSupportedPlatforms().includes(platform.toLowerCase());
  }

  /**
   * 获取所有支持的平台
   */
  getSupportedPlatforms(): string[] {
    return PlatformAdapterFactory.getSupportedPlatforms();
  }

  /**
   * 获取已登录的平台列表
   */
  getLoggedInPlatforms(): string[] {
    const loggedIn: string[] = [];
    
    for (const [platform, adapter] of this.adapters.entries()) {
      if (adapter.isLoggedIn()) {
        loggedIn.push(platform);
      }
    }
    
    return loggedIn;
  }

  /**
   * 批量执行跨平台操作
   */
  async batchOperation(platforms: string[], operation: (adapter: PlatformAdapter) => Promise<ApiResponse>): Promise<Record<string, ApiResponse>> {
    const results: Record<string, ApiResponse> = {};
    
    for (const platform of platforms) {
      try {
        const adapter = this.getAdapter(platform);
        results[platform] = await operation(adapter);
      } catch (error) {
        results[platform] = {
          success: false,
          error: error instanceof Error ? error.message : '未知错误',
          timestamp: Date.now()
        };
      }
    }
    
    return results;
  }
}

// 导出单例实例
import { apiSimulator } from './api-simulator';
export const platformManager = new PlatformManager(apiSimulator);