// pages/mine/profileedit.js
const API = require('../../utils/api.js')

Page({
  data: {
    editData: {
      avatar: '',
      name: '',
      sex: '',
      birth: '',
      province: '',
      city: '',
      district: '',
      phone: ''
    },
    today: '',
    saving: false
  },

  onLoad() {
    const today = new Date()
    this.setData({
      today: `${today.getFullYear()}-${String(today.getMonth() + 1).padStart(2, '0')}-${String(today.getDate()).padStart(2, '0')}`
    })
    this.initEditData()
  },

  // 表单初值取自全局用户对象。页面栈上「我的」页的 onShow 读的也是它，
  // 所以保存成功后必须回写 app.globalData.user，否则返回时看到的还是旧值
  initEditData() {
    const app = getApp()
    const user = app.globalData.user || {}
    const profile = user.profile || {}
    const location = user.location || {}

    let birth = ''
    if (profile.birth) {
      const date = new Date(profile.birth)
      birth = `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}-${String(date.getDate()).padStart(2, '0')}`
    }

    this.setData({
      editData: {
        // 空字符串表示"无真头像"，模板据此渲染浅橙底 + 暖陶土 user 线标的默认头像
        avatar: profile.avatar || '',
        name: profile.name || '',
        phone: profile.mobile || '',
        sex: profile.sex || '',
        birth,
        province: location.province || '',
        city: location.city || '',
        district: location.district || ''
      }
    })
  },

  onChooseAvatar() {
    wx.chooseMedia({
      count: 1,
      mediaType: ['image'],
      sourceType: ['album', 'camera'],
      success: (res) => {
        // 微信返回的是本地临时路径，没有文件上传接口可落库，
        // 故只在本次编辑中生效
        this.setData({
          'editData.avatar': res.tempFiles[0].tempFilePath
        })
      }
    })
  },

  onSelectSex(e) {
    this.setData({
      'editData.sex': e.currentTarget.dataset.sex
    })
  },

  onBirthChange(e) {
    this.setData({
      'editData.birth': e.detail.value
    })
  },

  onRegionChange(e) {
    const region = e.detail.value
    this.setData({
      'editData.province': region[0] || '',
      'editData.city': region[1] || '',
      'editData.district': region[2] || ''
    })
  },

  onFieldInput(e) {
    const field = e.currentTarget.dataset.field
    this.setData({
      [`editData.${field}`]: e.detail.value
    })
  },

  onSave() {
    if (this.data.saving) return

    const editData = this.data.editData
    const app = getApp()
    const user = app.globalData.user

    if (!user || !user._id) {
      wx.showToast({ title: '请先登录', icon: 'none' })
      return
    }

    this.setData({ saving: true })
    wx.showLoading({ title: '保存中...' })

    const updateData = {
      _id: user._id,
      profile: {
        name: editData.name,
        sex: editData.sex,
        birth: editData.birth ? new Date(editData.birth).toISOString() : null,
        mobile: editData.phone
      },
      location: {
        province: editData.province,
        city: editData.city,
        district: editData.district
      }
    }

    API.user.update(updateData)
      .then((data) => {
        if (data.code === 0) {
          // 回写全局对象：「我的」页 onShow 依赖它刷新头像行与资料
          app.globalData.user = data.data.user
          wx.showToast({ title: '保存成功', icon: 'success' })
          // 返回上一页（「我的」），由它的 onShow 重新读取全局对象
          wx.navigateBack()
        } else {
          wx.showToast({ title: data.msg || '保存失败', icon: 'none' })
        }
      })
      .catch(() => {
        wx.showToast({ title: '网络请求失败', icon: 'none' })
      })
      .finally(() => {
        wx.hideLoading()
        this.setData({ saving: false })
      })
  }
})