<template>
  <ContentBase>
    <div class="row justify-content-md-center">
      <div class="col-3">
        <form @submit.prevent="login">
          <div class="mb-3">
            <label for="username" class="form-label">用户名</label>
            <input  v-model="username" type="text" class="form-control" id="username">
          </div>
          <div class="mb-3">
            <label for="password" class="form-label">密码</label>
            <input  v-model="password" type="password" class="form-control" id="password">
          </div>
          <div class="error-message">{{ error_message }}</div>
          <button type="submit" class="btn btn-primary">登录</button>
        </form>
      </div>
    </div>
  </ContentBase> 
</template>

<script>
import ContentBase from  '../components/ContentBase';
import { ref } from 'vue';
import { useStore } from 'vuex';
import router from '@/router/index.js';

export default {
  name: 'LoginView',
  components: {
    ContentBase,
  },
  setup(){
    let store = useStore();
    let username = ref('123');
    let password = ref('123');
    let error_message = ref('');

    const login = () => {
      store.dispatch('login',{
        username:username.value,
        password:password.value,
        success(){
          error_message.value = '';
          router.push({name:'home'});
        },
        error(){
          error_message.value = "用户名或密码错误";
        }
        });

    };
    return {
      username,
      password,
      error_message,
      login,
    }
  }
}
</script>

<style scoped>
button {
  width: 100%;
}

.error-message {
  color: red;
}
</style>

