// 基础API客户端配置
import axios from 'axios';

/**
 * 基础API路径 - 从环境变量获取
 * 环境变量配置文件优先级：
 * .env.local > .env.development (开发环境) / .env.production (生产环境) > .env
 */
export const API_BASE_URL = process.env.NEXT_PUBLIC_API_BASE_URL || "http://localhost:8000/api"

// 创建API客户端实例
export const apiClient = axios.create({
  baseURL: API_BASE_URL,
  headers: {
    'Content-Type': 'application/json',
  },
});

// 添加请求拦截器，自动为请求添加认证令牌
apiClient.interceptors.request.use((config) => {
  if (typeof window !== 'undefined') {
    const token = localStorage.getItem('auth_token');
    console.log('🔍 Token检查:', token ? `存在 (${token.substring(0, 20)}...)` : '不存在');
    
    if (token) {
      config.headers.Authorization = `Bearer ${token}`;
      console.log('✅ Token已添加到请求头');
    } else {
      console.warn('⚠️  未找到auth_token，请求将不包含认证');
    }
  } else {
    console.log('🔍 服务端渲染环境，跳过token检查');
  }
  
  console.log('📡 发送请求:', config.method?.toUpperCase(), config.url);
  console.log('📋 请求头:', config.headers);
  
  return config;
}, (error) => {
  console.error('❌ 请求拦截器错误:', error);
  return Promise.reject(error);
});

// 添加响应拦截器，用于处理认证错误
apiClient.interceptors.response.use(
  (response) => {
    console.log('✅ 响应成功:', response.status, response.config.url);
    return response;
  },
  (error) => {
    console.error('❌ 响应错误:', error.response?.status, error.config?.url);
    
    // 处理401未授权错误（token过期或无效）
    if (error.response?.status === 401) {
      console.warn('🚫 认证失败，token可能过期或无效');
      console.log('响应详情:', error.response?.data);
      localStorage.removeItem('auth_token');
      if (typeof window !== 'undefined' && window.location.pathname !== '/login') {
        window.location.href = '/login';
      }
    }
    
    return Promise.reject(error);
  }
);

// 模拟网络延迟
export const simulateDelay = async (minMs = 300, maxMs = 800) => {
  const delay = Math.floor(Math.random() * (maxMs - minMs + 1)) + minMs
  await new Promise((resolve) => setTimeout(resolve, delay))
}

// 模拟API响应
export const mockResponse = async <T>(data: T, error?: string) => {
  await simulateDelay()

  // 随机模拟错误（概率约5%）
  if (!error && Math.random() < 0.05) {
    throw new Error("模拟随机网络错误，请重试")
  }

  // 如果提供了错误信息，则抛出错误
  if (error) {
    throw new Error(error)
  }

  return data
}

// API响应类型
export interface ApiResponse<T> {
  success: boolean;
  code: number;
  message: string;
  data: T;
}

// 分页响应类型
export interface PaginatedResponse<T> {
  items: T[];
  total: number;
  page: number;
  pageSize: number;
  totalPages: number;
}

// 分页请求参数
export interface PaginationParams {
  page?: number;
  pageSize?: number;
  search?: string;
}

// 获取当前环境
export const getCurrentEnvironment = (): 'development' | 'production' | 'test' => {
  return (process.env.NODE_ENV as 'development' | 'production' | 'test') || 'development'
}

// 判断是否为开发环境
export const isDevelopment = (): boolean => getCurrentEnvironment() === 'development'

// 判断是否为生产环境
export const isProduction = (): boolean => getCurrentEnvironment() === 'production'

// 模拟用户数据
export const mockUsers = [
  {
    id: "1",
    name: "管理员",
    email: "admin@example.com",
    role: "超级管理员",
    status: "活跃",
    registeredAt: "2023-01-01",
    lastLogin: "今天 08:45",
    phone: "13800138000",
    address: "北京市海淀区中关村",
    permissions: [
      "仪表盘查看",
      "用户管理",
      "角色权限管理",
      "AI模型管理",
      "服装管理",
      "道具管理",
      "歌曲管理",
      "系统设置",
    ],
    loginHistory: [
      { date: "2023-05-15 08:45", ip: "192.168.1.1", device: "Chrome / Windows" },
      { date: "2023-05-14 15:30", ip: "192.168.1.1", device: "Chrome / Windows" },
      { date: "2023-05-13 09:20", ip: "192.168.1.1", device: "Chrome / Windows" },
    ],
  },
  {
    id: "2",
    name: "张三",
    email: "zhangsan@example.com",
    role: "内容管理员",
    status: "活跃",
    registeredAt: "2023-03-15",
    lastLogin: "昨天 16:30",
    phone: "13900139000",
    permissions: ["仪表盘查看", "服装管理", "道具管理", "歌曲管理"],
    loginHistory: [
      { date: "2023-05-14 16:30", ip: "192.168.1.2", device: "Safari / macOS" },
      { date: "2023-05-13 14:20", ip: "192.168.1.2", device: "Safari / macOS" },
    ],
  },
  {
    id: "3",
    name: "李四",
    email: "lisi@example.com",
    role: "AI模型管理员",
    status: "活跃",
    registeredAt: "2023-05-20",
    lastLogin: "3天前",
    permissions: ["仪表盘查看", "AI模型管理"],
    loginHistory: [{ date: "2023-05-12 10:15", ip: "192.168.1.3", device: "Firefox / Ubuntu" }],
  },
  {
    id: "4",
    name: "王五",
    email: "wangwu@example.com",
    role: "卡牌管理员",
    status: "活跃",
    registeredAt: "2023-07-10",
    lastLogin: "1周前",
    permissions: ["仪表盘查看", "服装管理", "道具管理", "家居装饰管理"],
  },
  {
    id: "5",
    name: "赵六",
    email: "zhaoliu@example.com",
    role: "查看者",
    status: "未激活",
    registeredAt: "2023-09-05",
    permissions: ["仪表盘查看"],
  },
]

// 模拟角色数据
export const mockRoles = [
  {
    id: "1",
    name: "超级管理员",
    description: "拥有系统所有权限",
    userCount: 1,
    createdAt: "2023-01-01",
    status: "系统角色",
    permissions: {
      dashboard: true,
      users: true,
      roles: true,
      ai_models: true,
      outfits: true,
      props: true,
      songs: true,
      settings: true,
    },
  },
  {
    id: "2",
    name: "内容管理员",
    description: "管理系统内容",
    userCount: 2,
    createdAt: "2023-01-15",
    status: "系统角色",
    permissions: {
      dashboard: true,
      outfits: true,
      props: true,
      songs: true,
    },
  },
  {
    id: "3",
    name: "AI模型管理员",
    description: "管理AI模型",
    userCount: 1,
    createdAt: "2023-02-10",
    status: "系统角色",
    permissions: {
      dashboard: true,
      ai_models: true,
    },
  },
  {
    id: "4",
    name: "卡牌管理员",
    description: "管理卡牌内容",
    userCount: 1,
    createdAt: "2023-03-05",
    status: "自定义角色",
    permissions: {
      dashboard: true,
      outfits: true,
      props: true,
      home_decor: true,
    },
  },
  {
    id: "5",
    name: "查看者",
    description: "只能查看仪表盘",
    userCount: 1,
    createdAt: "2023-04-20",
    status: "自定义角色",
    permissions: {
      dashboard: true,
    },
  },
]