/**
 * 宇之然AI维度 — API 工具
 * 后端地址：wdkj.yuzhiran.com.cn (生产) / 127.0.0.1:3001 (开发)
 */

const BASE_URL = 'https://wdkj.yuzhiran.com.cn'
const DEV_URL = 'http://127.0.0.1:3001'

// 生产环境使用域名（SSL 已续期）
const API_BASE = 'https://wdkj.yuzhiran.com.cn'

/**
 * 通用请求封装
 */
async function request(method, path, data = null, token = null) {
  const url = `${API_BASE}${path}`
  const headers = {
    'Content-Type': 'application/json'
  }
  if (token) {
    headers['Authorization'] = `Bearer ${token}`
  }

  try {
    const res = await uni.request({
      url,
      method,
      data,
      header: headers,
      timeout: 15000
    })

    const body = res.data
    if (body.success) {
      return body.data
    }
    throw new Error(body.error || '请求失败')
  } catch (err) {
    console.error(`[API] ${method} ${path} failed:`, err)
    throw err
  }
}

/**
 * 认证相关
 */
export const authApi = {
  /** 微信小程序登录 */
  login: (code, userInfo) =>
    request('POST', '/api/auth/login', { code, userInfo }),

  /** H5 密码登录 */
  h5Login: (loginData) =>
    request('POST', '/api/auth/user/login', loginData),

  /** H5 注册 */
  register: (email, password, nickName, verifyCode) =>
    request('POST', '/api/auth/user/register', { email, password, nickName, verifyCode }),

  /** 获取当前用户 */
  me: (token) =>
    request('GET', '/api/auth/me', null, token),
}

/**
 * 知识库
 */
export const knowledgeApi = {
  /** 获取知识列表 */
  list: (params = {}) => {
    const query = Object.entries(params)
      .filter(([_, v]) => v !== undefined && v !== null)
      .map(([k, v]) => `${k}=${v}`)
      .join('&')
    return request('GET', `/api/knowledge${query ? '?' + query : ''}`)
  },

  /** 获取知识详情 */
  detail: (id) =>
    request('GET', `/api/knowledge/${id}`),

  /** 收藏知识 */
  collect: (id, token) =>
    request('POST', `/api/knowledge/${id}/collect`, null, token),

  /** 取消收藏 */
  uncollect: (id, token) =>
    request('DELETE', `/api/knowledge/collect/${id}`, null, token),

  /** 获取收藏列表 */
  collected: (token) =>
    request('GET', '/api/knowledge/collected', null, token),

  /** 获取维度问答 */
  questions: (dim) =>
    request('GET', `/api/knowledge/${dim}/questions`),

  /** 搜索知识 */
  search: (q, options = {}) => {
    const params = { q, ...options }
    const query = Object.entries(params)
      .filter(([_, v]) => v !== undefined && v !== null)
      .map(([k, v]) => `${k}=${encodeURIComponent(v)}`)
      .join('&')
    return request('GET', `/api/knowledge/search${query ? '?' + query : ''}`)
  },
}

/**
 * AI 问答
 */
export const aiChatApi = {
  /** 获取配额 */
  quota: (token) =>
    request('GET', '/api/ai-chat/quota', null, token),

  /** 提问 */
  ask: (question, dimension = 'general', token) =>
    request('POST', '/api/ai-chat/ask', { question, dimension }, token),

  /** 分享获得次数 */
  shareGain: (token) =>
    request('POST', '/api/ai-chat/share-gain', null, token),
}

/**
 * 用户相关
 */
export const userApi = {
  /** 获取用户进度 */
  progress: (token) =>
    request('GET', '/api/user/progress', null, token),

  /** 保存进度 */
  saveProgress: (data, token) =>
    request('POST', '/api/user/progress', data, token),

  /** 排行榜 */
  leaderboard: (dim = null) =>
    request('GET', `/api/user/leaderboard${dim ? '?dim=' + dim : ''}`),

  /** 获取成就 */
  achievements: (token) =>
    request('GET', '/api/user/achievements', null, token),

  /** 用户统计 */
  stats: (token) =>
    request('GET', '/api/user/stats', null, token),
}

/**
 * 支付相关
 */
export const paymentApi = {
  /** 获取商品列表 */
  products: () =>
    request('GET', '/api/payment/products'),

  /** 创建订单 */
  createOrder: (productId, token) =>
    request('POST', '/api/payment/create-order', { productId }, token),
}

/**
 * 趋势资讯
 */
export const trendApi = {
  /** 获取趋势列表 */
  list: (params = {}) => {
    const query = Object.entries(params)
      .filter(([_, v]) => v !== undefined && v !== null)
      .map(([k, v]) => `${k}=${v}`)
      .join('&')
    return request('GET', `/api/trend${query ? '?' + query : ''}`)
  },

  /** 获取趋势详情 */
  detail: (id) =>
    request('GET', `/api/trend/${id}`),
}

/**
 * 意见反馈
 */
export const feedbackApi = {
  /** 提交反馈 */
  create: (data, token) =>
    request('POST', '/api/feedback', data, token),
  /** 我的反馈列表 */
  my: (token) =>
    request('GET', '/api/feedback/my', null, token),
}

export default {
  auth: authApi,
  knowledge: knowledgeApi,
  aiChat: aiChatApi,
  user: userApi,
  payment: paymentApi,
  trend: trendApi,
  feedback: feedbackApi
}