import { createRouter, createWebHashHistory } from 'vue-router'
import { getAdminSections, getAllAdminPages } from '@/constants/admin-sections'
import { componentLoaders } from './component-loaders/index.js'

const ADMIN_DEFAULT_ROUTE = '/global/common'

function resolveComponent(page) {
  if (componentLoaders[page.component]) {
    return componentLoaders[page.component]
  }

  // Log missing component for debugging — avoids silent fallback to DeferredPage
  if (page.component && page.component !== 'DeferredPage') {
    console.warn(
      `[AKSRT Route] Component "${page.component}" not found in componentLoaders for route "${page.route}". Falling back to DeferredPage.`
    )
  }

  return componentLoaders.DeferredPage
}

function createRouteMeta(page) {
  const meta = {
    title: page.title,
    section: page.sectionKey || '',
    desc: page.desc || '',
    status: page.status || 'available',
    secondaryEntry: page.secondaryEntry === true,
  }

  if (page.compatSourceSection) {
    meta.compatSourceSection = page.compatSourceSection
  }

  if (page.canonicalDomain) {
    meta.canonicalDomain = page.canonicalDomain
  }

  if (page.section) {
    meta.section = page.section
  }

  if (page.component === 'DeferredPage') {
    meta.deferred = true
    meta.deferredProps = {
      title: page.title,
      description: page.desc || '',
      icon: page.iconClass || 'fa fas fa-compass',
      phase: page.phase || '',
      status: page.status || 'deferred',
      dependsOn: page.dependsOn || [],
      reason: page.reason || '',
      features: page.features || [],
    }
  }

  return meta
}

function createSectionRedirectRoutes() {
  const seenPaths = new Set(['/'])

  return getAdminSections()
    .filter((section) => section.defaultRoute && section.route !== section.defaultRoute && !seenPaths.has(section.route))
    .map((section) => {
      seenPaths.add(section.route)
      return {
        path: section.route,
        redirect: section.defaultRoute,
      }
    })
}

/**
 * Old SPA ops routes → native WP admin pages.
 * Bookmarks under order-related paths land on NativeOpsRedirect.
 */
const NATIVE_OPS_REDIRECTS = [
  { path: '/users/messages', title: '消息中心', nativeAdminPath: 'users.php?page=aksrt_messages' },
  { path: '/users/referral-codes', title: '推广码运营', nativeAdminPath: 'users.php?page=aksrt_referral_codes' },
  { path: '/users/ban', title: '禁封管理', nativeAdminPath: 'users.php?page=aksrt_user_ban&tab=restrictions' },
  { path: '/users/report', title: '禁封/举报', nativeAdminPath: 'users.php?page=aksrt_user_ban&tab=reports' },
]

const routes = [
  { path: '/', redirect: ADMIN_DEFAULT_ROUTE },
  ...createSectionRedirectRoutes(),
  ...getAllAdminPages().map((page) => ({
    path: page.route,
    name: page.name,
    component: resolveComponent(page),
    meta: createRouteMeta(page),
  })),
  ...NATIVE_OPS_REDIRECTS.map((item) => ({
    path: item.path,
    name: `NativeRedirect_${item.path.replace(/\W+/g, '_')}`,
    component: componentLoaders.NativeOpsRedirect,
    meta: {
      title: item.title,
      nativeAdminPath: item.nativeAdminPath,
      status: 'redirect',
    },
  })),
]

export default createRouter({
  history: createWebHashHistory(),
  routes,
})