const { request, ensureLogin, cents } = require('../../utils/api.js')

const roleLabels = {
  CLEANER: '保洁员',
  STAFF: '门店员工',
  STORE_ADMIN: '门店管理员',
  TENANT_ADMIN: '租户管理员',
  PLATFORM_ADMIN: '平台管理员',
}

Page({
  data: {
    loading: false,
    detailLoading: false,
    errorMessage: '',
    tab: 'members',
    query: '',
    members: [],
    staff: [],
    selectedMember: null,
  },

  async onLoad() {
    await this.loadData()
  },

  selectTab(event) {
    const tab = event.currentTarget.dataset.tab
    if (!tab || tab === this.data.tab) return
    this.setData({ tab, selectedMember: null, errorMessage: '' })
    this.loadData()
  },

  inputQuery(event) {
    this.setData({ query: String(event.detail.value || '').trim() })
  },

  search() {
    this.loadData()
  },

  async loadData() {
    this.setData({ loading: true, errorMessage: '' })
    try {
      await ensureLogin()
      const search = this.data.query ? `&search=${encodeURIComponent(this.data.query)}` : ''
      if (this.data.tab === 'members') {
        const response = await request(`/management/members?page=1&pageSize=50${search}`)
        this.setData({
          members: (response.data?.items || []).map((item) => this.presentMember(item)),
        })
      } else {
        const response = await request(`/management/staff?page=1&pageSize=50${search}`)
        this.setData({
          staff: (response.data?.items || []).map((item) => this.presentStaff(item)),
        })
      }
    } catch (error) {
      this.setData({ errorMessage: error.message || '人员数据加载失败' })
    } finally {
      this.setData({ loading: false })
    }
  },

  async openMember(event) {
    const memberId = event.currentTarget.dataset.memberId
    if (!memberId || this.data.detailLoading) return
    this.setData({ detailLoading: true, errorMessage: '' })
    try {
      const response = await request(`/management/members/${encodeURIComponent(memberId)}`)
      const member = this.presentMember(response.data || {})
      member.recentLedger = (response.data?.recentLedger || []).map((item) => ({
        ...item,
        deltaText: this.deltaText(item),
        createdText: this.formatTime(item.createdAt),
      }))
      this.setData({ selectedMember: member })
    } catch (error) {
      this.setData({ errorMessage: error.message || '会员详情加载失败' })
    } finally {
      this.setData({ detailLoading: false })
    }
  },

  closeMember() {
    this.setData({ selectedMember: null })
  },

  presentMember(item) {
    return {
      ...item,
      displayName: item.nickname || '未命名会员',
      balanceText: cents(item.wallet?.totalBalanceCents),
      paidText: cents(item.orders?.paidAmountCents),
      registeredText: this.formatTime(item.registeredAt),
    }
  },

  presentStaff(item) {
    return {
      ...item,
      displayName: item.nickname || '未命名员工',
      rolesText: (item.roles || []).map((role) => roleLabels[role] || role).join(' / ') || '未分配角色',
      storesText: (item.storeIds || []).length ? `门店 ${item.storeIds.join('、')}` : '全部门店/未绑定门店',
      statusText: item.status === 'ACTIVE' ? '在职' : '已停用',
      lastLoginText: item.lastLoginAt ? this.formatTime(item.lastLoginAt) : '从未登录',
    }
  },

  deltaText(item) {
    const cash = Number(item.cashDeltaCents || 0)
    const gift = Number(item.giftDeltaCents || 0)
    const total = cash + gift
    return `${total >= 0 ? '+' : '-'}${cents(Math.abs(total))}`
  },

  formatTime(value) {
    const date = new Date(value)
    if (Number.isNaN(date.getTime())) return String(value || '')
    const pad = (part) => String(part).padStart(2, '0')
    return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())} ${pad(date.getHours())}:${pad(date.getMinutes())}`
  },
})