/**
 * 地址编辑页（新增/编辑）
 * 参考 Next.js: app/view/my/addresses/[id]/page.tsx
 */

const app = getApp()

Page({
  data: {
    statusBarHeight: 44,
    isEdit: false, // 是否为编辑模式
    addressId: null,
    
    // 表单数据
    name: '',
    phone: '',
    province: '',
    city: '',
    district: '',
    detail: '',
    isDefault: false,
    
    // 地区选择器
    region: [],
    
    saving: false
  },

  onLoad(options) {
    wx.showShareMenu({ withShareTimeline: true })
    this.setData({
      statusBarHeight: app.globalData.statusBarHeight || 44
    })

    // 如果有 id 参数，则为编辑模式
    if (options.id) {
      this.setData({
        isEdit: true,
        addressId: options.id
      })
      this.loadAddress(options.id)
    }
  },

  // 加载地址详情（编辑模式）
  async loadAddress(id) {
    wx.showLoading({ title: '加载中...', mask: true })

    try {
      const res = await app.request(`/api/miniprogram/user/addresses/${id}`)
      if (res.success && res.data) {
        const addr = res.data
        this.setData({
          name: addr.name || '',
          phone: addr.phone || '',
          province: addr.province || '',
          city: addr.city || '',
          district: addr.district || '',
          detail: addr.detail || '',
          isDefault: addr.isDefault || false,
          region: [addr.province, addr.city, addr.district]
        })
      } else {
        wx.showToast({ title: '加载失败', icon: 'none' })
      }
    } catch (e) {
      console.error('加载地址详情失败:', e)
      wx.showToast({ title: '加载失败', icon: 'none' })
    } finally {
      wx.hideLoading()
    }
  },

  // 表单输入
  onNameInput(e) {
    this.setData({ name: e.detail.value })
  },

  onPhoneInput(e) {
    this.setData({ phone: e.detail.value.replace(/\D/g, '').slice(0, 11) })
  },

  onDetailInput(e) {
    this.setData({ detail: e.detail.value })
  },

  // 地区选择
  onRegionChange(e) {
    const region = e.detail.value
    this.setData({
      region,
      province: region[0],
      city: region[1],
      district: region[2]
    })
  },

  // 切换默认地址
  onDefaultChange(e) {
    this.setData({ isDefault: e.detail.value })
  },

  // 表单验证
  validateForm() {
    const { name, phone, province, city, district, detail } = this.data

    if (!name || name.trim().length === 0) {
      wx.showToast({ title: '请输入收货人姓名', icon: 'none' })
      return false
    }

    if (!phone || phone.length !== 11) {
      wx.showToast({ title: '请输入正确的手机号', icon: 'none' })
      return false
    }

    if (!province || !city || !district) {
      wx.showToast({ title: '请选择省市区', icon: 'none' })
      return false
    }

    if (!detail || detail.trim().length === 0) {
      wx.showToast({ title: '请输入详细地址', icon: 'none' })
      return false
    }

    return true
  },

  // 保存地址
  async saveAddress() {
    if (!this.validateForm()) return
    if (this.data.saving) return

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

    const { isEdit, addressId, name, phone, province, city, district, detail, isDefault } = this.data
    const userId = app.globalData.userInfo?.id

    if (!userId) {
      wx.hideLoading()
      wx.showToast({ title: '请先登录', icon: 'none' })
      this.setData({ saving: false })
      return
    }

    const addressData = {
      userId,
      name,
      phone,
      province,
      city,
      district,
      detail,
      fullAddress: `${province}${city}${district}${detail}`,
      isDefault
    }

    try {
      let res
      if (isEdit) {
        // 编辑模式 - PUT 请求
        res = await app.request(`/api/miniprogram/user/addresses/${addressId}`, {
          method: 'PUT',
          data: addressData
        })
      } else {
        // 新增模式 - POST 请求
        res = await app.request('/api/miniprogram/user/addresses', {
          method: 'POST',
          data: addressData
        })
      }

      if (res.success) {
        wx.hideLoading()
        wx.showToast({
          title: isEdit ? '保存成功' : '添加成功',
          icon: 'success'
        })
        setTimeout(() => {
          getApp().goBackOrToHome()
        }, 1500)
      } else {
        wx.hideLoading()
        wx.showToast({ title: res.message || '保存失败', icon: 'none' })
        this.setData({ saving: false })
      }
    } catch (e) {
      console.error('保存地址失败:', e)
      wx.hideLoading()
      wx.showToast({ title: '保存失败', icon: 'none' })
      this.setData({ saving: false })
    }
  },

  // 返回
  goBack() {
    getApp().goBackOrToHome()
  },

  onShareAppMessage() {
    const ref = app.getMyReferralCode()
    return {
      title: 'Soul创业派对 - 编辑地址',
      path: ref ? `/pages/addresses/edit?ref=${ref}` : '/pages/addresses/edit'
    }
  },

  onShareTimeline() {
    const ref = app.getMyReferralCode()
    return { title: 'Soul创业派对 - 编辑地址', query: ref ? `ref=${ref}` : '' }
  }
})