import '@/styles/adminDensity.css'
import { createRouter, createWebHistory } from 'vue-router'
import { ElMessageBox } from 'element-plus'
import AppLayout from '@/app/layouts/AppLayout.vue'
import { decideRouteAccess } from '@/core/routing/accessDecision'
import { useAccessPreviewStore } from '@/core/access/accessPreview'
import { downloadRoutes } from '@/modules/downloads/routes'
import { inboundRoutes } from '@/modules/inbounds/routes'
import { unifiedOrderRoutes } from '@/modules/unified-orders/routes'
import { fbaPricingRoutes } from '@/modules/fba-pricing/routes'
import { iamRoutes } from '@/modules/iam/routes'
import { masterDataRoutes } from '@/modules/master-data/routes'
import { warehouseResourceRoutes } from '@/modules/warehouse-resources/routes'
import { useAuthStore } from '@/core/auth/auth'
import { useUnsavedWorkStore } from '@/core/unsaved-work/unsavedWork'
import { canAccessWorkspaceRoute, isWorkspaceRoute, workspaceRouteId } from '@/core/workspace-tabs/routeWorkspace'
import { readStoredActiveWorkspacePath, useWorkspaceTabsStore } from '@/core/workspace-tabs/workspaceTabs'
import { customerRoutes } from '@/modules/customers/routes'
import { dashboardRoutes } from '@/modules/dashboard/routes'
import { warehouseRoutes } from '@/modules/warehouses/routes'
import { prototypeModuleRoutes } from '@/prototype/routes'
import { oceanBookingRoutes } from '@/modules/ocean-bookings/routes'
import { truckingRoutes } from '@/modules/trucking/routes'
import { feeItemRoutes } from '@/modules/fee-items/routes'
import { containerLoadingRoutes } from '@/modules/container-loading/routes'
import { loadingListRoutes } from '@/modules/loading-lists/routes'
import { financeRoutes } from '@/modules/finance/routes'
import { notificationRoutes } from '@/modules/notifications/routes'
import { domesticContainerRoutes } from '@/modules/domestic-containers/routes'
import { supplierRoutes } from '@/modules/suppliers/routes'
import { overseasWarehouseRoutes } from '@/modules/overseas-warehouse/routes'
import { overseasBusinessRoutes } from '@/modules/overseas-business/routes'
import { overseasMasterDataRoutes } from '@/modules/overseas-master-data/routes'
import { pdaReleaseRoutes } from '@/modules/pda-releases/routes'
import { sailingCalendarRoutes } from '@/modules/sailing-calendar/routes'
import { appointmentCalendarRoutes } from '@/modules/appointment-calendar/routes'
import { selfOperatedRoutes } from '@/modules/self-operated/routes'

const router = createRouter({
  history: createWebHistory(),
  routes: [
    {
      path: '/login',
      name: 'login',
      component: () => import('@/modules/auth/pages/LoginView.vue'),
      meta: { title: '登录' },
    },
    {
      path: '/',
      component: AppLayout,
      meta: { requiresAuth: true },
      children: [
        {
          path: '',
          name: 'home',
          component: () => import('@/app/pages/ModuleView.vue'),
          meta: { title: '进入管理后台', description: '正在进入当前角色可访问的业务页面', workspaceTab: false, keepAlive: false },
        },
        ...dashboardRoutes,
        ...prototypeModuleRoutes,
        ...oceanBookingRoutes,
        ...truckingRoutes,
        ...containerLoadingRoutes,
        ...loadingListRoutes,
        ...financeRoutes,
        ...notificationRoutes,
        ...domesticContainerRoutes,
        ...supplierRoutes,
        ...overseasWarehouseRoutes,
        ...overseasBusinessRoutes,
        ...overseasMasterDataRoutes,
        ...customerRoutes,
        ...warehouseRoutes,
        ...unifiedOrderRoutes,
        ...inboundRoutes,
        ...fbaPricingRoutes,
        ...warehouseResourceRoutes,
        ...feeItemRoutes,
        ...masterDataRoutes,
        ...downloadRoutes,
        ...iamRoutes,
        ...pdaReleaseRoutes,
        ...sailingCalendarRoutes,
        ...appointmentCalendarRoutes,
        ...selfOperatedRoutes,
        {
          path: '403',
          name: 'forbidden',
          component: () => import('@/app/pages/ForbiddenView.vue'),
          meta: { title: '权限不足', description: '当前登录账号没有访问此页面的权限', workspaceTab: false, keepAlive: false },
        },
      ],
    },
    { path: '/:pathMatch(.*)*', redirect: '/' },
  ],
})

router.beforeEach(async (to, from) => {
  const fromId = workspaceRouteId(from)
  if (!fromId || to.fullPath === from.fullPath) return true
  const isNonDestructiveWorkspaceSwitch = isWorkspaceRoute(to) && workspaceRouteId(to) !== fromId
  if (isNonDestructiveWorkspaceSwitch) return true

  const unsaved = useUnsavedWorkStore()
  const blocking = unsaved.findForWorkspace(fromId)
  if (blocking.length === 0) return true
  try {
    await ElMessageBox.confirm(
      `当前页面还有未保存内容：${[...new Set(blocking.map((entry) => entry.label))].join('、')}。继续后将放弃这些修改。`,
      '放弃未保存的修改？',
      { confirmButtonText: '放弃并继续', cancelButtonText: '继续编辑', type: 'warning', customClass: 'admin-density-confirm' },
    )
    unsaved.removeWorkspaces([fromId])
    useWorkspaceTabsStore().bumpCacheEpoch(fromId)
    return true
  } catch {
    return false
  }
})

router.beforeEach((to) => {
  document.title = to.meta.title ? `${to.meta.title} - 柏悦物流管理后台` : '柏悦物流管理后台'
  const auth = useAuthStore()
  if (to.name === 'login' && auth.isAuthenticated) {
    return { name: 'home' }
  }
  if (!auth.isAuthenticated && !to.meta.requiresAuth) return true

  const access = useAccessPreviewStore()
  if (auth.isAuthenticated) access.initializeAfterLogin()
  const alternativePermissions = to.meta.permissionAnyOf ?? []
  const requiresRoutePermission = Boolean(to.meta.permission || alternativePermissions.length)
  const hasRoutePermission = !requiresRoutePermission || Boolean(
    (to.meta.permission && access.can(to.meta.permission))
    || alternativePermissions.some((permission) => access.can(permission)),
  )
  const decision = decideRouteAccess({
    requiresAuth: to.meta.requiresAuth,
    isAuthenticated: auth.isAuthenticated,
    fullPath: to.fullPath,
    permission: to.meta.permission ?? alternativePermissions[0],
    hasPermission: hasRoutePermission,
  })

  if (decision.type === 'login') {
    return { name: 'login', query: { redirect: decision.redirect } }
  }
  if (decision.type === 'forbidden') {
    return { name: 'forbidden', query: { from: decision.from }, replace: true }
  }
  if (to.name === 'home') {
    const restoredPath = auth.user?.id ? readStoredActiveWorkspacePath(auth.user.id) : null
    if (restoredPath) {
      const restoredRoute = router.resolve(restoredPath)
      if (canAccessWorkspaceRoute(restoredRoute, access.permissionCodes)) {
        return { path: restoredPath, replace: true }
      }
    }
    return access.firstAccessiblePath
      ? { path: access.firstAccessiblePath, replace: true }
      : { name: 'forbidden', replace: true }
  }
  return true
})

export default router