// main.js (or main.ts) - Vue Router Setup
import { createApp } from 'vue';
import { createRouter, createWebHistory } from 'vue-router';
import App from './App.vue';
import HomeView from './views/HomeView.vue';
import AboutView from './views/AboutView.vue';
import ContactView from './views/ContactView.vue';
import NotFoundView from './views/NotFoundView.vue';

// 1. Define route components (imported from .vue files)

// 2. Define your routes array
const routes = [
  { path: '/', name: 'Home', component: HomeView },
  { path: '/about', name: 'About', component: AboutView },
  { path: '/contact', name: 'Contact', component: ContactView },
  // Catch-all route for 404 - MUST be last
  { path: '/:pathMatch(.*)*', name: 'NotFound', component: NotFoundView }
];

// 3. Create the router instance
const router = createRouter({
  history: createWebHistory(), // Use HTML5 history mode (requires server config for direct access)
  routes,
});

// 4. Create and mount the Vue app, making it router-aware
const app = createApp(App);
app.use(router);
app.mount('#app');


// App.vue - Root Component with Router Links and View
<template>
  <div id="app">
    <nav>
      <router-link to="/">Home</router-link> |
      <router-link to="/about">About</router-link> |
      <router-link to="/contact">Contact</router-link> |
      <router-link to="/non-existent-page">404 Test</router-link>
    </nav>
    <main>
      <router-view></router-view>
    </main>
  </div>
</template>

<script setup>
// No script needed for basic App.vue with router
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 20px;
}
nav {
  padding: 10px;
  background-color: #f8f8f8;
  border-bottom: 1px solid #eee;
}
nav a {
  font-weight: bold;
  color: #2c3e50;
  text-decoration: none;
  margin: 0 10px;
}
nav a.router-link-exact-active {
  color: #42b983;
}
main {
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 5px;
  margin: 20px auto;
  max-width: 800px;
}
</style>

// views/HomeView.vue
<template>
  <div>
    <h1>Home Page</h1>
    <p>Welcome to the home page!</p>
  </div>
</template>
<script setup></script>

// views/AboutView.vue
<template>
  <div>
    <h1>About Us</h1>
    <p>This is the about page, where you can learn more about us.</p>
  </div>
</template>
<script setup></script>

// views/ContactView.vue
<template>
  <div>
    <h1>Contact Us</h1>
    <p>Feel free to reach out to us!</p>
  </div>
</template>
<script setup></script>

// views/NotFoundView.vue
<template>
  <div>
    <h1>404 - Page Not Found</h1>
    <p>Oops! The page you are looking for does not exist.</p>
  </div>
</template>
<script setup></script>