<template>
  <view class="detail-container">
    <!-- 设备状态卡片 -->
    <view class="device-card">
      <view class="device-header">
        <view class="device-title">
          <text class="name">共享风扇</text>
          <text class="id">设备号：{{ deviceId }}</text>
        </view>
        <view class="status" :class="deviceStatus.class">{{ deviceStatus.text }}</view>
      </view>
      <view class="device-info">
        <view class="info-item">
          <text class="label">设备位置</text>
          <text class="value">{{ deviceLocation }}</text>
        </view>
        <view class="info-item">
          <text class="label">电池电量</text>
          <text class="value">{{ batteryLevel }}%</text>
        </view>
      </view>
    </view>

    <!-- 套餐选择 -->
    <view class="package-section" v-if="!hasActiveOrder">
      <view class="section-title">选择套餐</view>
      <view class="package-list">
        <view 
          v-for="(pkg, index) in packages" 
          :key="index"
          class="package-item"
          :class="{ active: selectedPackage === index }"
          @click="selectPackage(index)"
        >
          <view class="package-content">
            <text class="time">{{ pkg.time }}</text>
            <text class="price">￥{{ pkg.price }}</text>
          </view>
          <text class="unit-price">约{{ pkg.unitPrice }}元/小时</text>
        </view>
      </view>
    </view>

    <!-- 使用说明 -->
    <view class="notice-section">
      <view class="section-title">使用说明</view>
      <view class="notice-list">
        <view class="notice-item">
          <view class="dot"></view>
          <text>请在使用前检查设备是否完好</text>
        </view>
        <view class="notice-item">
          <view class="dot"></view>
          <text>超出使用时间将自动按小时计费</text>
        </view>
        <view class="notice-item">
          <view class="dot"></view>
          <text>请在指定区域内使用设备</text>
        </view>
      </view>
    </view>

    <!-- 底部操作栏 -->
    <view class="bottom-bar">
      <view class="price-info" v-if="!hasActiveOrder">
        <text class="deposit-text">押金：</text>
        <text class="deposit-amount">￥99</text>
      </view>
      <button 
        class="action-btn" 
        :class="hasActiveOrder ? 'return' : 'rent'"
        @click="handleAction"
      >
        {{ hasActiveOrder ? '归还设备' : '立即租借' }}
      </button>
    </view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      deviceId: '',
      deviceLocation: '一号教学楼大厅',
      batteryLevel: 95,
      hasActiveOrder: false,
      deviceStatus: {
        text: '可使用',
        class: 'available'
      },
      selectedPackage: 0,
      packages: [
        { time: '1小时', price: '2.00', unitPrice: '2.00' },
        { time: '4小时', price: '6.00', unitPrice: '1.50' },
        { time: '12小时', price: '15.00', unitPrice: '1.25' }
      ],
      isLoggedIn: false
    }
  },
  onLoad(options) {
    this.deviceId = options.deviceId
    this.checkLoginAndOrder()
  },
  methods: {
    // 检查登录状态和订单
    async checkLoginAndOrder() {
      try {
        // 检查登录状态
        const token = uni.getStorageSync('token')
        if (!token) {
          this.isLoggedIn = false
          this.showLoginTip()
          return
        }

        this.isLoggedIn = true
        // 检查是否有进行中的订单
        await this.checkOrderStatus()
      } catch (error) {
        uni.showToast({
          title: '网络错误，请重试',
          icon: 'none'
        })
      }
    },

    // 显示登录提示
    showLoginTip() {
      uni.showModal({
        title: '提示',
        content: '请先登录后再操作',
        confirmText: '去登录',
        success: (res) => {
          if (res.confirm) {
            uni.navigateTo({
              url: '/pages/login/index'
            })
          }
        }
      })
    },

    // 检查订单状态
    async checkOrderStatus() {
      try {
        // 调用接口检查是否有进行中的订单
        const result = await this.$api.checkActiveOrder()
        
        if (result.hasOrder) {
          // 如果有正在进行的订单，跳转到归还页面，带上设备ID
          uni.redirectTo({
            url: `/pages/device/return?deviceId=${this.deviceId}`
          })
        }
      } catch (error) {
        uni.showToast({
          title: '订单状态查询失败',
          icon: 'none'
        })
      }
    },

    // 处理租借操作
    handleRent() {
      if (!this.isLoggedIn) {
        this.showLoginTip()
        return
      }

      const selectedPkg = this.packages[this.selectedPackage]
      uni.showModal({
        title: '确认租借',
        content: `确认支付押金￥99.00及${selectedPkg.time}套餐费用￥${selectedPkg.price}？`,
        success: (res) => {
          if (res.confirm) {
            this.submitRentOrder()
          }
        }
      })
    },

    // 提交租借订单
    async submitRentOrder() {
      try {
        uni.showLoading({
          title: '处理中'
        })
        
        const selectedPkg = this.packages[this.selectedPackage]
        // TODO: 调用租借接口
        const result = await this.$api.createOrder({
          deviceId: this.deviceId,
          packageId: this.selectedPackage,
          duration: selectedPkg.time,
          amount: selectedPkg.price
        })

        uni.hideLoading()
        
        if (result.success) {
          uni.showToast({
            title: '租借成功',
            icon: 'success'
          })
          // 跳转到使用中页面
          setTimeout(() => {
            uni.redirectTo({
              url: `/pages/return/index?deviceId=${this.deviceId}&orderId=${result.orderId}`
            })
          }, 1500)
        }
      } catch (error) {
        uni.hideLoading()
        uni.showToast({
          title: '租借失败，请重试',
          icon: 'none'
        })
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.detail-container {
  min-height: 100vh;
  background: #f8f8f8;
  padding: 30rpx;
  padding-bottom: 180rpx;
  box-sizing: border-box;

  .device-card {
    background: #fff;
    border-radius: 24rpx;
    padding: 30rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 4rpx 16rpx rgba(0,0,0,0.04);

    .device-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 30rpx;

      .device-title {
        .name {
          font-size: 36rpx;
          font-weight: 600;
          color: #333;
          margin-right: 20rpx;
        }

        .id {
          font-size: 24rpx;
          color: #999;
        }
      }

      .status {
        padding: 8rpx 24rpx;
        border-radius: 24rpx;
        font-size: 24rpx;
        
        &.available {
          background: #E8F5E9;
          color: #4CAF50;
        }
        
        &.in-use {
          background: #E3F2FD;
          color: #1976D2;
        }
      }
    }

    .device-info {
      .info-item {
        display: flex;
        justify-content: space-between;
        margin-bottom: 16rpx;

        &:last-child {
          margin-bottom: 0;
        }

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

        .value {
          font-size: 28rpx;
          color: #333;
        }
      }
    }
  }

  .package-section {
    background: #fff;
    border-radius: 24rpx;
    padding: 30rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 4rpx 16rpx rgba(0,0,0,0.04);

    .section-title {
      font-size: 32rpx;
      font-weight: 600;
      color: #333;
      margin-bottom: 24rpx;
    }

    .package-list {
      display: flex;
      justify-content: space-between;

      .package-item {
        flex: 1;
        margin: 0 10rpx;
        padding: 24rpx;
        background: #F5F5F5;
        border-radius: 16rpx;
        text-align: center;
        transition: all 0.3s;

        &:first-child {
          margin-left: 0;
        }

        &:last-child {
          margin-right: 0;
        }

        &.active {
          background: #E3F2FD;
          border: 2rpx solid #1976D2;

          .package-content {
            .time, .price {
              color: #1976D2;
            }
          }
        }

        .package-content {
          margin-bottom: 8rpx;

          .time {
            font-size: 28rpx;
            color: #333;
            margin-bottom: 8rpx;
            display: block;
          }

          .price {
            font-size: 36rpx;
            font-weight: 600;
            color: #333;
          }
        }

        .unit-price {
          font-size: 24rpx;
          color: #999;
        }
      }
    }
  }

  .notice-section {
    background: #fff;
    border-radius: 24rpx;
    padding: 30rpx;
    box-shadow: 0 4rpx 16rpx rgba(0,0,0,0.04);

    .section-title {
      font-size: 32rpx;
      font-weight: 600;
      color: #333;
      margin-bottom: 24rpx;
    }

    .notice-list {
      .notice-item {
        display: flex;
        align-items: center;
        margin-bottom: 16rpx;

        &:last-child {
          margin-bottom: 0;
        }

        .dot {
          width: 12rpx;
          height: 12rpx;
          background: #1976D2;
          border-radius: 50%;
          margin-right: 16rpx;
        }

        text {
          font-size: 28rpx;
          color: #666;
          line-height: 1.5;
        }
      }
    }
  }

  .bottom-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    padding: 20rpx 30rpx;
    padding-bottom: calc(20rpx + env(safe-area-inset-bottom));
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 -4rpx 16rpx rgba(0,0,0,0.04);

    .price-info {
      .deposit-text {
        font-size: 28rpx;
        color: #666;
      }

      .deposit-amount {
        font-size: 36rpx;
        font-weight: 600;
        color: #FF9800;
      }
    }

    .action-btn {
      flex: 1;
      margin-left: 30rpx;
      height: 88rpx;
      border-radius: 44rpx;
      font-size: 32rpx;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      border: none;

      &.rent {
        background: linear-gradient(135deg, #1976D2, #42A5F5);
        color: #fff;
      }

      &.return {
        background: linear-gradient(135deg, #FF9800, #FFB74D);
        color: #fff;
      }

      &:active {
        transform: scale(0.98);
      }
    }
  }
}
</style> 