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

const managerRoles = ['STAFF', 'STORE_ADMIN', 'TENANT_ADMIN', 'PLATFORM_ADMIN']
const roomStatusLabels = {
  AVAILABLE: '空闲',
  MAINTENANCE: '维护中',
  RESERVED: '已预订',
  IN_USE: '使用中',
  CLEANING_REQUIRED: '待清洁',
}
const orderStatusLabels = {
  DRAFT: '草稿',
  PENDING_PAYMENT: '待支付',
  PAID: '已支付',
  RESERVED: '待开始',
  IN_PROGRESS: '进行中',
  FINISHED: '已结束',
  CANCELLED: '已取消',
  REFUNDING: '退款中',
  REFUNDED: '已退款',
  CLOSED: '已关闭',
}
const orderActionsByStatus = {
  DRAFT: [{ action: 'SUBMIT', label: '提交订单' }, { action: 'CANCEL', label: '取消订单' }, { action: 'CLOSE', label: '关闭订单' }],
  PENDING_PAYMENT: [{ action: 'CANCEL', label: '取消订单' }, { action: 'CLOSE', label: '关闭订单' }],
  PAID: [{ action: 'RESERVE', label: '确认预留' }, { action: 'START', label: '开始使用' }, { action: 'CANCEL', label: '取消订单' }, { action: 'BEGIN_REFUND', label: '发起退款' }],
  RESERVED: [{ action: 'START', label: '开始使用' }, { action: 'CANCEL', label: '取消订单' }, { action: 'BEGIN_REFUND', label: '发起退款' }],
  IN_PROGRESS: [{ action: 'FINISH', label: '结束使用' }, { action: 'BEGIN_REFUND', label: '发起退款' }],
  FINISHED: [{ action: 'BEGIN_REFUND', label: '发起退款' }, { action: 'CLOSE', label: '关闭订单' }],
  CANCELLED: [{ action: 'BEGIN_REFUND', label: '发起退款' }, { action: 'CLOSE', label: '关闭订单' }],
  REFUNDING: [{ action: 'COMPLETE_REFUND', label: '确认退款完成' }],
  REFUNDED: [{ action: 'CLOSE', label: '关闭订单' }],
}

Page({
  data: {
    loading: false,
    errorMessage: '',
    canWrite: false,
    stores: [],
    selectedStoreId: '',
    selectedStoreName: '',
    rooms: [],
    orders: [],
    visibleOrders: [],
    orderFilters: [
      { value: '', label: '全部' },
      { value: 'PENDING_PAYMENT', label: '待支付' },
      { value: 'RESERVED', label: '待开始' },
      { value: 'IN_PROGRESS', label: '进行中' },
      { value: 'FINISHED', label: '已结束' },
      { value: 'REFUNDING', label: '退款中' },
    ],
    selectedOrderStatus: '',
    busyRoomId: '',
    busyOrderId: '',
    summary: {
      roomTotal: 0,
      available: 0,
      inUse: 0,
      attention: 0,
      activeOrders: 0,
    },
  },

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

  async onShow() {
    if (this.data.selectedStoreId) await this.loadStoreData(this.data.selectedStoreId)
  },

  async onPullDownRefresh() {
    await this.loadDashboard(this.data.selectedStoreId)
    wx.stopPullDownRefresh()
  },

  async loadDashboard(preferredStoreId = '') {
    this.setData({ loading: true, errorMessage: '' })
    try {
      await ensureLogin()
      const me = await request('/auth/me')
      const access = me.data?.access || { roles: [], capabilities: [], storeIds: [] }
      if (!access.roles.some((role) => managerRoles.includes(role))) {
        throw new Error('当前账号没有门店运营权限')
      }
      const storesResponse = await request('/management/stores')
      const stores = storesResponse.data || []
      const selectedStoreId = stores.some((store) => store.id === preferredStoreId)
        ? preferredStoreId
        : (stores[0]?.id || '')
      this.setData({
        canWrite: access.capabilities.includes('store.operation.write')
          || access.capabilities.includes('tenant.manage')
          || access.roles.includes('PLATFORM_ADMIN'),
        stores,
        selectedStoreId,
        selectedStoreName: stores.find((store) => store.id === selectedStoreId)?.name || '',
      })
      await this.loadStoreData(selectedStoreId)
    } catch (error) {
      this.setData({ errorMessage: error.message || '门店运营数据加载失败' })
    } finally {
      this.setData({ loading: false })
    }
  },

  async selectStore(event) {
    const storeId = event.currentTarget.dataset.storeId
    if (!storeId || storeId === this.data.selectedStoreId) return
    const store = this.data.stores.find((item) => item.id === storeId)
    this.setData({
      selectedStoreId: storeId,
      selectedStoreName: store?.name || '',
      selectedOrderStatus: '',
    })
    await this.loadStoreData(storeId)
  },

  async loadStoreData(storeId) {
    if (!storeId) {
      this.setData({ rooms: [], orders: [], visibleOrders: [] })
      this.refreshSummary()
      return
    }
    try {
      const encodedStoreId = encodeURIComponent(storeId)
      const [roomsResponse, ordersResponse] = await Promise.all([
        request(`/management/stores/${encodedStoreId}/rooms`),
        request(`/orders?page=1&pageSize=50&storeId=${encodedStoreId}`),
      ])
      const rooms = (roomsResponse.data || []).map((item) => ({
        ...item,
        statusText: roomStatusLabels[item.operationalStatus] || item.operationalStatus,
        priceText: cents(item.basePriceCents),
      }))
      const orders = (ordersResponse.data?.items || []).map((item) => this.presentOrder(item))
      this.setData({ rooms, orders })
      this.applyOrderFilter()
      this.refreshSummary()
    } catch (error) {
      this.setData({ errorMessage: error.message || '门店运营数据加载失败' })
    }
  },

  selectOrderFilter(event) {
    this.setData({ selectedOrderStatus: event.currentTarget.dataset.status || '' })
    this.applyOrderFilter()
  },

  applyOrderFilter() {
    const status = this.data.selectedOrderStatus
    this.setData({
      visibleOrders: status
        ? this.data.orders.filter((item) => item.status === status)
        : this.data.orders,
    })
  },

  refreshSummary() {
    const rooms = this.data.rooms
    const activeStatuses = ['PAID', 'RESERVED', 'IN_PROGRESS']
    this.setData({
      summary: {
        roomTotal: rooms.length,
        available: rooms.filter((item) => item.configurationStatus === 'ENABLED' && item.operationalStatus === 'AVAILABLE').length,
        inUse: rooms.filter((item) => ['RESERVED', 'IN_USE'].includes(item.operationalStatus)).length,
        attention: rooms.filter((item) => item.configurationStatus === 'DISABLED' || ['MAINTENANCE', 'CLEANING_REQUIRED'].includes(item.operationalStatus)).length,
        activeOrders: this.data.orders.filter((item) => activeStatuses.includes(item.status)).length,
      },
    })
  },

  changeRoomStatus(event) {
    if (!this.data.canWrite) return
    const roomId = event.currentTarget.dataset.roomId
    wx.showActionSheet({
      itemList: ['设为空闲', '设为维护中', '设为待清洁'],
      success: ({ tapIndex }) => {
        const statuses = ['AVAILABLE', 'MAINTENANCE', 'CLEANING_REQUIRED']
        this.updateRoomStatus(roomId, { operationalStatus: statuses[tapIndex] }, '管理员小程序调整房态')
      },
    })
  },

  toggleRoomConfiguration(event) {
    if (!this.data.canWrite) return
    const roomId = event.currentTarget.dataset.roomId
    const current = event.currentTarget.dataset.status
    const configurationStatus = current === 'ENABLED' ? 'DISABLED' : 'ENABLED'
    this.updateRoomStatus(roomId, { configurationStatus }, configurationStatus === 'ENABLED' ? '管理员小程序启用房间' : '管理员小程序停用房间')
  },

  async updateRoomStatus(roomId, status, reason) {
    if (!roomId || this.data.busyRoomId) return
    this.setData({ busyRoomId: roomId, errorMessage: '' })
    try {
      await request(`/management/rooms/${encodeURIComponent(roomId)}/status`, {
        method: 'PATCH',
        data: { storeId: this.data.selectedStoreId, ...status, reason },
      })
      await this.loadStoreData(this.data.selectedStoreId)
      wx.showToast({ title: '房态已更新', icon: 'success' })
    } catch (error) {
      this.setData({ errorMessage: error.message || '房态更新失败' })
    } finally {
      this.setData({ busyRoomId: '' })
    }
  },

  createOrder() {
    if (!this.data.canWrite || !this.data.selectedStoreId) return
    wx.navigateTo({
      url: `/pages/manager/order-create?storeId=${encodeURIComponent(this.data.selectedStoreId)}&storeName=${encodeURIComponent(this.data.selectedStoreName)}`,
    })
  },

  manageOrder(event) {
    if (!this.data.canWrite) return
    const orderId = event.currentTarget.dataset.orderId
    const status = event.currentTarget.dataset.status
    const actions = orderActionsByStatus[status] || []
    if (!actions.length) {
      wx.showToast({ title: '当前状态无可用动作', icon: 'none' })
      return
    }
    wx.showActionSheet({
      itemList: actions.map((item) => item.label),
      success: ({ tapIndex }) => {
        const selected = actions[tapIndex]
        wx.showModal({
          title: selected.label,
          content: `确认对订单执行“${selected.label}”吗？`,
          success: ({ confirm }) => {
            if (confirm) this.executeOrderAction(orderId, selected)
          },
        })
      },
    })
  },

  addOrderNote(event) {
    if (!this.data.canWrite) return
    const orderId = event.currentTarget.dataset.orderId
    wx.showModal({
      title: '添加订单备注',
      editable: true,
      placeholderText: '请输入备注内容',
      success: ({ confirm, content }) => {
        const note = String(content || '').trim()
        if (confirm && note) this.saveOrderNote(orderId, note)
      },
    })
  },

  async executeOrderAction(orderId, selected) {
    if (!orderId || this.data.busyOrderId) return
    this.setData({ busyOrderId: orderId, errorMessage: '' })
    try {
      await request(`/management/orders/${encodeURIComponent(orderId)}/actions`, {
        method: 'POST',
        data: { action: selected.action, reason: `管理员小程序：${selected.label}` },
      })
      await this.loadStoreData(this.data.selectedStoreId)
      wx.showToast({ title: '订单已更新', icon: 'success' })
    } catch (error) {
      this.setData({ errorMessage: error.message || '订单操作失败' })
    } finally {
      this.setData({ busyOrderId: '' })
    }
  },

  async saveOrderNote(orderId, note) {
    if (!orderId || this.data.busyOrderId) return
    this.setData({ busyOrderId: orderId, errorMessage: '' })
    try {
      await request(`/management/orders/${encodeURIComponent(orderId)}/note`, {
        method: 'POST',
        data: { note },
      })
      wx.showToast({ title: '备注已保存', icon: 'success' })
    } catch (error) {
      this.setData({ errorMessage: error.message || '订单备注保存失败' })
    } finally {
      this.setData({ busyOrderId: '' })
    }
  },

  presentOrder(item) {
    return {
      ...item,
      statusText: orderStatusLabels[item.status] || item.status,
      amountText: cents(item.paidAmountCents || item.totalAmountCents),
      timeText: `${this.formatTime(item.startAt)} - ${this.formatTime(item.endAt)}`,
    }
  },

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