<!-- components/LoadingOverlay.vue -->
<template>
  <view v-if="visible" class="loading-overlay">
    <view class="loading-content">
      <view class="loading-spinner"></view>
      <text class="loading-text">{{ text }}</text>
    </view>
  </view>
</template>

<script setup>
import { ref, onMounted, onUnmounted } from 'vue'

const props = defineProps({
  text: { type: String, default: '加载中...' },
  delay: { type: Number, default: 200 }
})

const visible = ref(false)
let timer = null

onMounted(() => {
  timer = setTimeout(() => {
    visible.value = true
  }, props.delay)
})

onUnmounted(() => {
  if (timer) clearTimeout(timer)
})
</script>

<style lang="scss" scoped>
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.loading-content {
  background: rgba(0, 0, 0, 0.7);
  border-radius: 16rpx;
  padding: 32rpx 48rpx;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20rpx;
}

.loading-spinner {
  width: 48rpx;
  height: 48rpx;
  border: 4rpx solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  color: #fff;
  font-size: 24rpx;
}
</style>