refactor(main.ts): ♻️ 抽离一些功能为vue插件

src/plugins/i18n.ts

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+// 国际化
+import i18n from "@/lang/index";
+import type { App } from "vue";
+
+export function setupI18n(app: App<Element>) {
+  app.use(i18n);
+}

src/plugins/icons.ts

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+import type { App } from "vue";
+import * as ElementPlusIconsVue from "@element-plus/icons-vue";
+
+// 注册所有图标
+export function setupElIcons(app: App<Element>) {
+  for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
+    app.component(key, component);
+  }
+}

src/plugins/index.ts

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+export * from "./icons";
+export * from "./i18n";
+export * from "./permission";

src/plugins/permission.ts

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+import router from "@/router";
+import { useUserStore } from "@/store/modules/user";
+import { usePermissionStore } from "@/store/modules/permission";
+import NProgress from "@/utils/nprogress";
+
+export function setupPermission() {
+  // 白名单路由
+  const whiteList = ["/login"];
+
+  router.beforeEach(async (to, from, next) => {
+    NProgress.start();
+    const hasToken = localStorage.getItem("token");
+    if (hasToken) {
+      if (to.path === "/login") {
+        // 如果已登录，跳转首页
+        next({ path: "/" });
+        NProgress.done();
+      } else {
+        const userStore = useUserStore();
+        const hasRoles =
+          userStore.user.roles && userStore.user.roles.length > 0;
+        if (hasRoles) {
+          // 未匹配到任何路由，跳转404
+          if (to.matched.length === 0) {
+            from.name ? next({ name: from.name }) : next("/404");
+          } else {
+            next();
+          }
+        } else {
+          const permissionStore = usePermissionStore();
+          try {
+            const { roles } = await userStore.getUserInfo();
+            const accessRoutes = await permissionStore.generateRoutes(roles);
+            accessRoutes.forEach((route) => {
+              router.addRoute(route);
+            });
+            next({ ...to, replace: true });
+          } catch (error) {
+            // 移除 token 并跳转登录页
+            await userStore.resetToken();
+            next(`/login?redirect=${to.path}`);
+            NProgress.done();
+          }
+        }
+      }
+    } else {
+      // 未登录可以访问白名单页面
+      if (whiteList.indexOf(to.path) !== -1) {
+        next();
+      } else {
+        next(`/login?redirect=${to.path}`);
+        NProgress.done();
+      }
+    }
+  });
+
+  router.afterEach(() => {
+    NProgress.done();
+  });
+}