import { createRouter, createWebHistory, type RouteRecordRaw } from 'vue-router'
import { useAuthStore } from '@/stores/auth'

const routes: RouteRecordRaw[] = [
  {
    path: '/',
    name: 'home',
    component: () => import('@/views/HomeView.vue'),
    meta: {
      title: 'Drama Ling - 戲劇式語言學習',
      requiresAuth: false
    }
  },
  {
    path: '/auth',
    component: () => import('@/layouts/AuthLayout.vue'),
    children: [
      {
        path: 'login',
        name: 'login',
        component: () => import('@/views/auth/LoginView.vue'),
        meta: {
          title: '登入 - Drama Ling',
          requiresAuth: false
        }
      },
      {
        path: 'register',
        name: 'register',
        component: () => import('@/views/auth/RegisterView.vue'),
        meta: {
          title: '註冊 - Drama Ling',
          requiresAuth: false
        }
      },
      {
        path: 'forgot-password',
        name: 'forgot-password',
        component: () => import('@/views/auth/ForgotPasswordView.vue'),
        meta: {
          title: '忘記密碼 - Drama Ling',
          requiresAuth: false
        }
      }
    ]
  },
  {
    path: '/learning',
    component: () => import('@/layouts/AppLayout.vue'),
    meta: { requiresAuth: true },
    children: [
      {
        path: '',
        name: 'learning',
        component: () => import('@/views/learning/LearningHomeView.vue'),
        meta: {
          title: '學習地圖 - Drama Ling'
        }
      },
      {
        path: 'vocabulary',
        name: 'vocabulary',
        component: () => import('@/views/learning/VocabularyViewSimple.vue'),
        meta: {
          title: '詞彙學習 - Drama Ling'
        }
      },
      {
        path: 'vocabulary-native',
        name: 'vocabulary-native',
        component: () => import('@/views/learning/VocabularyViewNative.vue'),
        meta: {
          title: '詞彙學習 (原生樣式) - Drama Ling'
        }
      },
      {
        path: 'vocabulary/practice',
        name: 'vocabulary-practice',
        component: () => import('@/views/learning/VocabularyPracticeView.vue'),
        meta: {
          title: '詞彙練習 - Drama Ling'
        }
      },
      {
        path: 'vocabulary/choice-practice',
        name: 'vocabulary-choice-practice',
        component: () => import('@/views/learning/VocabularyChoicePracticeView.vue'),
        meta: {
          title: '選擇題練習 - Drama Ling'
        }
      },
      {
        path: 'vocabulary/choice-results/:sessionId',
        name: 'vocabulary-choice-results',
        component: () => import('@/views/learning/VocabularyChoiceResultsView.vue'),
        meta: {
          title: '練習結果 - Drama Ling'
        },
        props: true
      },
      {
        path: 'vocabulary/matching-practice',
        name: 'vocabulary-matching-practice',
        component: () => import('@/views/learning/VocabularyMatchingPracticeView.vue'),
        meta: {
          title: '圖片匹配練習 - Drama Ling'
        }
      },
      {
        path: 'vocabulary/reorganize-practice',
        name: 'vocabulary-reorganize-practice',
        component: () => import('@/views/learning/VocabularyReorganizePracticeView.vue'),
        meta: {
          title: '句子重組練習 - Drama Ling'
        }
      },
      {
        path: 'vocabulary/analytics',
        name: 'vocabulary-analytics',
        component: () => import('@/views/learning/VocabularyAnalyticsDashboard.vue'),
        meta: {
          title: '詞彙學習分析儀表板 - Drama Ling'
        }
      },
      {
        path: 'vocabulary/review',
        name: 'vocabulary-review',
        component: () => import('@/views/learning/VocabularyReviewMain.vue'),
        meta: {
          title: '智能複習系統 - Drama Ling'
        }
      },
      {
        path: 'dialogue/:id',
        name: 'dialogue',
        component: () => import('@/views/learning/DialogueView.vue'),
        meta: {
          title: '對話練習 - Drama Ling'
        },
        props: true
      },
      {
        path: 'roleplay/:id',
        name: 'roleplay',
        component: () => import('@/views/learning/RoleplayView.vue'),
        meta: {
          title: '角色扮演 - Drama Ling'
        },
        props: true
      },
      {
        path: 'pronunciation/:id',
        name: 'pronunciation',
        component: () => import('@/views/learning/PronunciationView.vue'),
        meta: {
          title: '發音練習 - Drama Ling'
        },
        props: true
      }
    ]
  },
  {
    path: '/profile',
    component: () => import('@/layouts/AppLayout.vue'),
    meta: { requiresAuth: true },
    children: [
      {
        path: '',
        name: 'profile',
        component: () => import('@/views/profile/ProfileView.vue'),
        meta: {
          title: '個人檔案 - Drama Ling'
        }
      },
      {
        path: 'progress',
        name: 'progress',
        component: () => import('@/views/profile/ProgressView.vue'),
        meta: {
          title: '學習進度 - Drama Ling'
        }
      },
      {
        path: 'settings',
        name: 'settings',
        component: () => import('@/views/profile/SettingsView.vue'),
        meta: {
          title: '設定 - Drama Ling'
        }
      }
    ]
  },
  {
    path: '/shop',
    component: () => import('@/layouts/AppLayout.vue'),
    meta: { requiresAuth: true },
    children: [
      {
        path: '',
        name: 'shop',
        component: () => import('@/views/shop/ShopView.vue'),
        meta: {
          title: '商店 - Drama Ling'
        }
      },
      {
        path: 'subscription',
        name: 'subscription',
        component: () => import('@/views/shop/SubscriptionView.vue'),
        meta: {
          title: '訂閱方案 - Drama Ling'
        }
      }
    ]
  },
  {
    path: '/offline',
    name: 'offline',
    component: () => import('@/views/OfflineView.vue'),
    meta: {
      title: '離線模式 - Drama Ling',
      requiresAuth: false
    }
  },
  {
    path: '/:pathMatch(.*)*',
    name: 'not-found',
    component: () => import('@/views/NotFoundView.vue'),
    meta: {
      title: '頁面未找到 - Drama Ling',
      requiresAuth: false
    }
  }
]

const router = createRouter({
  history: createWebHistory(),
  routes,
  scrollBehavior(to, from, savedPosition) {
    if (savedPosition) {
      return savedPosition
    }
    if (to.hash) {
      return { el: to.hash }
    }
    return { top: 0 }
  }
})

router.beforeEach(async (to, from, next) => {
  const authStore = useAuthStore()
  
  // 設定頁面標題
  if (to.meta.title) {
    document.title = to.meta.title as string
  }
  
  console.log('Route to:', to.path, 'Auth:', authStore.isAuthenticated)
  
  // 檢查認證需求
  if (to.meta.requiresAuth && !authStore.isAuthenticated) {
    // 保存目標路徑，登入後跳轉
    authStore.setRedirectPath(to.fullPath)
    next({ name: 'login' })
    return
  }
  
  // 已登入用戶訪問登入頁面時跳轉到首頁
  if ((to.name === 'login' || to.name === 'register') && authStore.isAuthenticated) {
    next({ name: 'learning' })
    return
  }
  
  next()
})

export default router