import { createRouter, createWebHistory } from 'vue-router'
import { nextTick } from 'vue'
import { useAppStore } from '../stores/app'
import { stopAllAudio } from '../composables/useLoginSounds'

const router = createRouter({
  history: createWebHistory(),
  routes: [
    {
      path: '/',
      component: () => import('../views/OnboardingWrapper.vue'),
      meta: { public: true },
      children: [
        {
          path: '',
          component: () => import('../views/RootRedirect.vue'),
        },
        {
          path: 'login',
          name: 'login',
          component: () => import('../views/Login.vue'),
        },
        {
          path: 'onboarding/intro',
          name: 'onboarding-intro',
          component: () => import('../views/OnboardingIntro.vue'),
        },
        {
          path: 'onboarding/options',
          name: 'onboarding-options',
          component: () => import('../views/OnboardingOptions.vue'),
        },
        {
          path: 'onboarding/path',
          name: 'onboarding-path',
          component: () => import('../views/OnboardingPath.vue'),
        },
        {
          path: 'onboarding/seed',
          name: 'onboarding-seed',
          component: () => import('../views/OnboardingSeedGenerate.vue'),
        },
        {
          path: 'onboarding/seed-verify',
          name: 'onboarding-seed-verify',
          component: () => import('../views/OnboardingSeedVerify.vue'),
        },
        {
          path: 'onboarding/seed-restore',
          name: 'onboarding-seed-restore',
          component: () => import('../views/OnboardingSeedRestore.vue'),
        },
        {
          path: 'onboarding/did',
          name: 'onboarding-did',
          component: () => import('../views/OnboardingDid.vue'),
        },
        {
          path: 'onboarding/identity',
          name: 'onboarding-identity',
          component: () => import('../views/OnboardingIdentity.vue'),
        },
        {
          path: 'onboarding/backup',
          name: 'onboarding-backup',
          component: () => import('../views/OnboardingBackup.vue'),
        },
        {
          path: 'onboarding/verify',
          name: 'onboarding-verify',
          component: () => import('../views/OnboardingVerify.vue'),
        },
        {
          path: 'onboarding/done',
          name: 'onboarding-done',
          component: () => import('../views/OnboardingDone.vue'),
        },
      ],
    },
    {
      path: '/recovery',
      name: 'recovery',
      component: () => import('../views/KioskRecovery.vue'),
      meta: { public: true },
    },
    {
      path: '/kiosk',
      name: 'kiosk',
      redirect: '/',
      beforeEnter: () => {
        // Persist kiosk mode before redirect so App.vue can skip the remote relay
        // (relay duplicates xdotool input on the kiosk display)
        localStorage.setItem('kiosk', 'true')
      },
    },
    {
      path: '/dashboard',
      component: () => import('../views/Dashboard.vue'),
      children: [
        {
          path: '',
          name: 'home',
          component: () => import('../views/Home.vue'),
        },
        {
          path: 'apps',
          name: 'apps',
          component: () => import('../views/Apps.vue'),
        },
        {
          path: 'apps/:id',
          name: 'app-details',
          component: () => import('../views/AppDetails.vue'),
        },
        {
          path: 'apps/lnd/channels',
          name: 'lightning-channels',
          component: () => import('../views/apps/LightningChannels.vue'),
        },
        {
          path: 'discover',
          name: 'discover',
          component: () => import('../views/Discover.vue'),
        },
        {
          path: 'marketplace',
          name: 'marketplace',
          component: () => import('../views/Marketplace.vue'),
        },
        {
          path: 'marketplace/:id',
          name: 'marketplace-app-detail',
          component: () => import('../views/MarketplaceAppDetails.vue'),
        },
        {
          path: 'cloud',
          name: 'cloud',
          component: () => import('../views/Cloud.vue'),
        },
        {
          path: 'cloud/peers/:peerId?',
          name: 'peer-files',
          component: () => import('../views/PeerFiles.vue'),
          props: true,
        },
        {
          path: 'cloud/:folderId',
          name: 'cloud-folder',
          component: () => import('../views/CloudFolder.vue'),
        },
        {
          path: 'server',
          name: 'server',
          component: () => import('../views/Server.vue'),
        },
        {
          path: 'monitoring',
          name: 'monitoring',
          component: () => import('../views/Monitoring.vue'),
        },
        {
          path: 'fleet',
          name: 'fleet',
          component: () => import('../views/Fleet.vue'),
        },
        {
          path: 'server/federation',
          name: 'federation',
          component: () => import('../views/Federation.vue'),
        },
        {
          path: 'mesh',
          name: 'mesh',
          component: () => import('../views/Mesh.vue'),
        },
        {
          path: 'web5',
          name: 'web5',
          component: () => import('../views/web5/Web5.vue'),
        },
        {
          path: 'web5/credentials',
          name: 'credentials',
          component: () => import('../views/Credentials.vue'),
        },
        {
          path: 'settings',
          name: 'settings',
          component: () => import('../views/Settings.vue'),
        },
        {
          path: 'settings/update',
          name: 'system-update',
          component: () => import('../views/SystemUpdate.vue'),
        },
        {
          path: 'goals/:goalId',
          name: 'goal-detail',
          component: () => import('../views/GoalDetail.vue'),
        },
        {
          path: 'chat',
          name: 'chat',
          component: () => import('../views/Chat.vue'),
        },
        {
          path: 'app-session/:appId',
          name: 'app-session',
          component: () => import('../views/AppSession.vue'),
        },
        // Containers removed: My Apps serves the same purpose. Redirect old links.
        {
          path: 'containers',
          redirect: () => ({ path: '/dashboard/apps' }),
        },
        {
          path: 'containers/:id',
          redirect: (to) => ({ path: `/dashboard/apps/${to.params.id}` }),
        },
      ],
    },
    {
      path: '/:pathMatch(.*)*',
      name: 'not-found',
      component: () => import('../views/NotFound.vue'),
    },
  ],
})

// Session check with timeout - avoids endless spinner on mobile/slow networks
const SESSION_CHECK_TIMEOUT_MS = 8000

async function checkSessionWithTimeout(store: ReturnType<typeof useAppStore>): Promise<boolean> {
  try {
    return await Promise.race([
      store.checkSession(),
      new Promise<boolean>((resolve) =>
        setTimeout(() => resolve(false), SESSION_CHECK_TIMEOUT_MS)
      ),
    ])
  } catch {
    return false
  }
}

/**
 * Navigation Guard
 * Handles authentication and onboarding flow routing
 */
export function isLocalRedirect(path: unknown): path is string {
  if (typeof path !== 'string') return false
  try {
    if (path.startsWith('//') || path.includes('://')) return false
    const url = new URL(path, window.location.origin)
    return url.origin === window.location.origin
  } catch {
    return false
  }
}

router.beforeEach(async (to, _from, next) => {
  const store = useAppStore()
  const isPublic = to.meta.public

  // Allow all public routes (login, onboarding) without auth check
  if (isPublic) {
    // If authenticated and visiting /login: show login immediately, validate in background.
    // This prevents endless spinner on mobile when checkSession hangs (slow/unreachable network).
    if (to.path === '/login' && store.isAuthenticated) {
      // Redirect back to intended page (from ?redirect= query) or default to home
      const rawRedirect = to.query.redirect
      const redirectTo = isLocalRedirect(rawRedirect) ? rawRedirect : '/dashboard'
      if (store.needsSessionValidation()) {
        next()
        checkSessionWithTimeout(store).then((valid) => {
          if (valid) {
            router.replace(redirectTo).catch(() => {})
          }
        })
        return
      }
      next(redirectTo)
      return
    }
    next()
    return
  }

  // Protected routes: validate session if stale auth from localStorage
  if (store.needsSessionValidation()) {
    // localStorage says we're authed — proceed immediately, revalidate in background.
    // No timeout wrapper here: a slow server shouldn't bounce the user to login.
    next()
    store.checkSession().then((valid) => {
      if (!valid) {
        router.replace({ path: '/login', query: { redirect: to.fullPath } }).catch(() => {})
      }
    })
    return
  }

  // Not authenticated at all (with timeout to avoid endless spinner on mobile)
  if (!store.isAuthenticated) {
    const hasSession = await checkSessionWithTimeout(store)
    if (hasSession) {
      next()
      return
    }
    // Check if this is a fresh install that needs onboarding
    try {
      const { isOnboardingComplete, getSavedOnboardingStep } = await import('@/composables/useOnboarding')
      const setupDone = await isOnboardingComplete()
      if (!setupDone) {
        const step = getSavedOnboardingStep()
        next(`/onboarding/${step}`)
        return
      }
    } catch {
      // If we can't check, assume fresh install and show onboarding
      next('/onboarding/intro')
      return
    }
    next({ path: '/login', query: { redirect: to.fullPath } })
    return
  }

  // Validated and authenticated - ensure WebSocket is connected
  if (!store.isConnected && !store.isReconnecting) {
    store.connectWebSocket().catch((err) => {
      if (import.meta.env.DEV) console.warn('[Router] WebSocket connection failed:', err)
    })
  }

  next()
})

// Persist onboarding step so page refresh resumes where user left off
router.afterEach((to) => {
  const match = to.path.match(/^\/onboarding\/(.+)/)
  if (match && match[1] !== 'intro') {
    localStorage.setItem('neode_onboarding_step', match[1]!)
  }
})

// Stop all login/splash audio when entering the dashboard
router.afterEach((to, from) => {
  if (to.path.startsWith('/dashboard') && !from.path.startsWith('/dashboard')) {
    stopAllAudio()
  }
})

// Focus Home nav item for gamepad when landing on dashboard home (e.g. after login)
router.afterEach((to) => {
  if (to.path === '/dashboard' || to.path === '/dashboard/') {
    nextTick(() => {
      setTimeout(() => {
        const homeLink = document.querySelector<HTMLAnchorElement>(
          '[data-controller-zone="sidebar"] a[href="/dashboard"], [data-controller-zone="sidebar"] a[href="/dashboard/"]'
        )
        if (homeLink) homeLink.focus()
      }, 150)
    })
  }
})

export default router