<template>
  <div class="message-view">
    <header class="top-nav">
      <button class="back-btn" @click="goBack">&lt; 返回</button>
      <h2 class="title">我的消息</h2>
      <div class="placeholder"></div>
    </header>
    <main class="message-list">
      <div class="message-item">
        <span class="icon system">📢</span>
        <div class="content">
          <h4>系统通知</h4>
          <p>新版上线！快来体验全新的积分商城吧！</p>
        </div>
        <span class="time">昨天</span>
      </div>
      <div class="message-item">
        <span class="icon promotion">💰</span>
        <div class="content">
          <h4>优惠活动</h4>
          <p>【限时特惠】有机酱油买一赠一，不容错过！</p>
        </div>
        <span class="time">3天前</span>
      </div>
      <div class="message-item">
        <span class="icon user">💬</span>
        <div class="content">
          <h4>互动消息</h4>
          <p>用户“健康小王子”赞了您的分享。</p>
        </div>
        <span class="time">上周</span>
      </div>
    </main>
  </div>
</template>

<script setup lang="ts">
import { useRouter } from 'vue-router';

const router = useRouter();

const goBack = () => {
  router.back();
};
</script>

<style scoped>
.message-view {
  padding-top: 60px;
}
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background-color: #fff;
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  max-width: 428px;
  margin: 0 auto;
  z-index: 10;
}
.back-btn {
  background: none; border: none; font-size: 16px; cursor: pointer;
}
.title { font-size: 18px; font-weight: bold; }
.placeholder { width: 50px; } /* To balance the back button */

.message-list {
  padding: 10px;
}
.message-item {
  display: flex;
  align-items: center;
  padding: 15px;
  border-bottom: 1px solid var(--color-border);
}
.icon {
  font-size: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-right: 15px;
}
.icon.system { background-color: #e0f2fe; }
.icon.promotion { background-color: #fef3c7; }
.icon.user { background-color: #e0e7ff; }

.content {
  flex-grow: 1;
}
.content h4 {
  font-size: 16px;
  margin-bottom: 4px;
}
.content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.time {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-left: 10px;
}
</style>