<template>
  <view v-if="visible" class="modal-overlay" @click="handleOverlayClick">
    <view class="modal-content" @click.stop>
      <!-- 关闭按钮 -->
      <view class="close-btn" @click="handleClose">
        <text class="close-icon">×</text>
      </view>
      
      <!-- 二维码卡片 -->
      <view class="qrcode-card">
        <!-- 标题 -->
        <view class="card-title">
          <text class="title-text">{{ title }}</text>
        </view>
        
        <!-- 二维码 -->
        <view class="qrcode-container">
          <uv-qrcode
            ref="qrcode"
            :value="value"
            :options="qrcodeOptions"
            canvas-id="modal-qrcode"
            size="400rpx"
          ></uv-qrcode>
        </view>
        
        <!-- 票号信息 -->
        <view class="ticket-info">
          <text class="ticket-label">票号:</text>
          <text class="ticket-number">{{ ticketNumber }}</text>
        </view>
        
        <!-- 提示文字 -->
        <view class="tip-text">
          <text>此二维码可直接检票</text>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
import UvQrcode from "../uni_modules/uv-qrcode/components/uv-qrcode/uv-qrcode.vue";

export default {
  name: "QRCodeModal",
  components: { UvQrcode },
  props: {
    // 是否显示弹窗
    visible: {
      type: Boolean,
      default: false
    },
    // 二维码内容
    value: {
      type: String,
      default: ""
    },
    // 标题
    title: {
      type: String,
      default: "预约详情"
    },
    // 票号
    ticketNumber: {
      type: String,
      default: ""
    }
  },
  data() {
    return {
      qrcodeOptions: {
        errorCorrectLevel: "Q",
        margin: 10,
        areaColor: "#fff"
      }
    };
  },
  watch: {
    visible(newVal) {
      if (newVal) {
        this.$nextTick(() => {
          this.generateQRCode();
        });
      }
    }
  },
  methods: {
    // 生成二维码
    generateQRCode() {
      if (this.$refs.qrcode) {
        this.$refs.qrcode.remake({
          success: () => {
            console.log("二维码生成成功");
          },
          fail: (err) => {
            console.error("二维码生成失败:", err);
          }
        });
      }
    },
    
    // 关闭弹窗
    handleClose() {
      this.$emit("close");
    },
    
    // 点击遮罩层
    handleOverlayClick() {
      this.handleClose();
    }
  }
};
</script>

<style lang="scss" scoped>
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn {
  position: absolute;
  bottom: 100rpx;
  left: 50%;
  transform: translateX(-50%);
  width: 80rpx;
  height: 80rpx;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.close-icon {
  font-size: 40rpx;
  color: #666;
  font-weight: bold;
}

.qrcode-card {
  background-color: white;
  border-radius: 20rpx;
  padding: 60rpx 40rpx;
  box-shadow: 0 8rpx 40rpx rgba(0, 0, 0, 0.15);
  max-width: 600rpx;
  width: 90%;
  text-align: center;
}

.card-title {
  margin-bottom: 40rpx;
}

.title-text {
  font-size: 36rpx;
  font-weight: bold;
  color: #333;
}

.qrcode-container {
  margin-bottom: 40rpx;
  display: flex;
  justify-content: center;
}

.ticket-info {
  margin-bottom: 20rpx;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10rpx;
}

.ticket-label {
  font-size: 28rpx;
  color: #666;
}

.ticket-number {
  font-size: 28rpx;
  color: #333;
  font-weight: 500;
}

.tip-text {
  text-align: center;
}

.tip-text text {
  font-size: 24rpx;
  color: #999;
}
</style> 