const { request } = require('../../utils/request')

const app = getApp()

Page({
  data: {
    phone: '13800000000',
    code: '',
    sending: false,
    submitting: false,
    wxSubmitting: false,
    countdown: 0
  },

  timer: null,

  onUnload() {
    if (this.timer) {
      clearInterval(this.timer)
      this.timer = null
    }
  },

  onPhoneInput(e) {
    this.setData({ phone: e.detail.value })
  },
  onCodeInput(e) {
    this.setData({ code: e.detail.value })
  },

  startCountdown() {
    this.setData({ countdown: 60 })
    if (this.timer) clearInterval(this.timer)
    this.timer = setInterval(() => {
      const next = this.data.countdown - 1
      if (next <= 0) {
        clearInterval(this.timer)
        this.timer = null
        this.setData({ countdown: 0 })
      } else {
        this.setData({ countdown: next })
      }
    }, 1000)
  },

  async sendCode() {
    if (this.data.countdown > 0 || this.data.sending) return
    const phone = (this.data.phone || '').trim()
    if (!phone) {
      wx.showToast({ title: '请输入手机号', icon: 'none' })
      return
    }
    this.setData({ sending: true })
    try {
      const result = await request('/api/auth/sms-code', {
        method: 'POST',
        data: { phone }
      })
      if (result && result.mock_code) {
        this.setData({ code: String(result.mock_code) })
        wx.showToast({ title: '验证码：' + result.mock_code, icon: 'none' })
      } else {
        wx.showToast({ title: '验证码已发送', icon: 'none' })
      }
      this.startCountdown()
    } catch (e) {
      wx.showToast({ title: '发送失败：' + e.message, icon: 'none' })
    } finally {
      this.setData({ sending: false })
    }
  },

  wxLoginCode() {
    return new Promise((resolve) => {
      wx.login({
        success: (res) => resolve(res && res.code ? res.code : ''),
        fail: () => resolve('')
      })
    })
  },

  async onGetPhoneNumber(e) {
    if (this.data.wxSubmitting) return
    const detail = e.detail || {}
    // 用户拒绝授权
    if (!detail.code && !detail.encryptedData) {
      wx.showToast({ title: '已取消微信授权', icon: 'none' })
      return
    }
    this.setData({ wxSubmitting: true })
    try {
      const jsCode = await this.wxLoginCode()
      const payload = { js_code: jsCode, phone_code: detail.code || '' }
      const result = await request('/api/auth/wechat-login', {
        method: 'POST',
        data: payload
      })
      app.globalData.token = result.access_token
      app.globalData.user = result.user
      wx.setStorageSync('token', result.access_token)
      wx.setStorageSync('user', result.user)
      wx.showToast({ title: '登录成功', icon: 'success' })
      wx.redirectTo({ url: '/pages/home/home' })
    } catch (err) {
      const msg = (err && err.message) || '微信登录失败'
      if (msg.indexOf('联系管理员') !== -1) {
        wx.showModal({
          title: '无法登录',
          content: '未找到匹配账号，请联系管理员添加账号后使用',
          showCancel: false,
          confirmText: '我知道了'
        })
      } else {
        wx.showToast({ title: msg, icon: 'none' })
      }
    } finally {
      this.setData({ wxSubmitting: false })
    }
  },

  async login() {
    if (this.data.submitting) return
    const phone = (this.data.phone || '').trim()
    const code = (this.data.code || '').trim()
    if (!phone || !code) {
      wx.showToast({ title: '请填写手机号和验证码', icon: 'none' })
      return
    }
    this.setData({ submitting: true })
    try {
      const result = await request('/api/auth/login', {
        method: 'POST',
        data: { phone, code }
      })
      app.globalData.token = result.access_token
      app.globalData.user = result.user
      wx.setStorageSync('token', result.access_token)
      wx.setStorageSync('user', result.user)
      wx.showToast({ title: '登录成功', icon: 'success' })
      wx.redirectTo({ url: '/pages/home/home' })
    } catch (e) {
      wx.showToast({ title: '登录失败：' + e.message, icon: 'none' })
    } finally {
      this.setData({ submitting: false })
    }
  }
})