#28 fix(login): handle bad credentials.

src/components/Login.vue

@@ -1,26 +1,71 @@
 <template>
   <h1>Login</h1>
-  <v-form @submit.prevent="login">
-    <v-text-field v-model="username" label="Usuario" required />
-    <v-text-field v-model="password" label="Contraseña" type="password" required />
-    <v-btn type="submit">Entrar</v-btn>
-    <v-alert v-if="error" type="error">{{ error }}</v-alert>
+
+  <v-form ref="loginForm" @submit.prevent="onSubmit">
+    <v-text-field
+      v-model="username"
+      label="Usuario"
+      :rules="[requiredRule]"
+      required
+    />
+    <v-text-field
+      v-model="password"
+      label="Contraseña"
+      type="password"
+      :rules="[requiredRule]"
+      required
+    />
+
+    <v-btn type="submit" color="primary">Entrar</v-btn>
+
+    <v-alert v-if="error" type="error" class="mt-2">{{ error }}</v-alert>
   </v-form>
 </template>
-<script setup>
-  import { ref } from 'vue';
+
+<script>
   import AuthService from '@/services/auth';
-  import { inject } from 'vue';
 
-  const username = ref('');
-  const password = ref('');
-  const error = ref('');
+  export default {
+    name: 'DonConfiao',
 
-  async function login() {
-    try {
-      await AuthService.login({ username: username.value, password: password.value });
-    } catch (e) {
-      error.value = e.message;
-    }
-  }
+    data() {
+      return {
+        username: '',
+        password: '',
+        error: '',
+      };
+    },
+
+    methods: {
+      requiredRule(value) {
+        return !!value || 'Este campo es obligatorio';
+      },
+
+      async onSubmit() {
+        this.error = '';
+
+        const form = this.$refs.loginForm;
+        const isValid = await form.validate();
+
+        if (!isValid) return;
+
+        if (!this.username || !this.password) {
+          this.error = 'Usuario y contraseña son obligatorios';
+          return;
+        }
+
+        try {
+          await AuthService.login({
+            username: this.username,
+            password: this.password,
+          });
+          this.$router.push({ path: '/' });
+        } catch (e) {
+          // Si el servicio devuelve un error (ej. 401) lo convertimos en excepción
+          const msg = e?.response?.data?.message ?? e.message;
+          this.error = msg ?? 'Error al iniciar sesión';
+        }
+      },
+    },
+  };
 </script>