<template>
  <div class="campus-map-container">
    <div ref="mapContainer" class="campus-map"></div>
    <div class="map-controls">
      <button @click="goToBuildingDetail" class="control-btn">进入建筑详情</button>
      <button @click="resetView" class="control-btn">重置视图</button>
    </div>
  </div>
</template>

<script>
import L from 'leaflet'
import 'leaflet/dist/leaflet.css'

export default {
  name: 'CampusMap',
  emits: ['navigate'],
  data() {
    return {
      map: null,
      mapConfig: {
        // 园区地图的边界坐标（使用更合理的默认尺寸）
        imageWidth: 1200, // 假设图片宽度
        imageHeight: 800, // 假设图片高度
        // 标点位置（使用相对位置，更容易看到）
        markers: [
          { id: 'building1', position: [530, 280], name: '建筑A', target: 'helloWorld' },
          { id: 'building2', position: [800, 500], name: '建筑B', target: 'helloWorld' }
        ]
      }
    }
  },
  mounted() {
    this.initMap()
  },
  beforeUnmount() {
    if (this.map) {
      this.map.remove()
      this.map = null
    }
  },
  methods: {
    initMap() {
      if (!this.$refs.mapContainer) return
      
      // 创建地图实例
      this.map = L.map(this.$refs.mapContainer, {
        crs: L.CRS.Simple, // 使用简单坐标系
        minZoom: -2,
        maxZoom: 4
      })
      
      // 使用配置的图片尺寸
      const imageWidth = this.mapConfig.imageWidth
      const imageHeight = this.mapConfig.imageHeight
      
      // 设置地图边界
      const southWest = this.map.unproject([0, imageHeight], this.map.getMaxZoom())
      const northEast = this.map.unproject([imageWidth, 0], this.map.getMaxZoom())
      const bounds = new L.LatLngBounds(southWest, northEast)
      
      // 添加图片作为底图
      L.imageOverlay('/zhenggui.png', bounds).addTo(this.map)
      
      // 设置地图视图到整个图片范围
      this.map.fitBounds(bounds)
      
      // 添加标点
      this.addMarkers()
      
      // 添加缩放控件
      L.control.zoom({
        position: 'topright'
      }).addTo(this.map)
      
    },
    
    addMarkers() {
      this.mapConfig.markers.forEach(markerConfig => {
        // 将自定义坐标转换为地图坐标
        const mapPoint = this.map.unproject(markerConfig.position, this.map.getMaxZoom())
        
        // 创建更醒目的自定义图标
        const customIcon = L.divIcon({
          html: `
            <div class="custom-marker" style="cursor: pointer;">
              <div class="marker-pin" style="background: #ff4444; border: 3px solid white; width: 40px; height: 40px; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); box-shadow: 0 0 10px rgba(255, 0, 0, 0.8);"></div>
              <div class="marker-label" style="position: absolute; top: -35px; left: 50%; transform: translateX(-50%); background: #ff4444; color: white; padding: 4px 12px; border-radius: 20px; font-size: 14px; font-weight: bold; white-space: nowrap; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3); border: 2px solid white;">${markerConfig.name}</div>
            </div>
          `,
          className: 'custom-div-icon',
          iconSize: [40, 50],
          iconAnchor: [20, 50]
        })
        
        // 添加标记
        const marker = L.marker(mapPoint, { icon: customIcon }).addTo(this.map)
        
        // 添加调试信息
        console.log(`添加标记: ${markerConfig.name}，位置:`, markerConfig.position)
        
        // 添加点击事件
        marker.on('click', () => {
          this.handleMarkerClick(markerConfig)
        })
        
        // 添加悬停效果（使用不改变位置的样式）
        marker.on('mouseover', () => {
          const element = marker.getElement()
          if (element) {
            const pin = element.querySelector('.marker-pin')
            const label = element.querySelector('.marker-label')
            if (pin) {
              pin.style.background = '#ff0000'
              pin.style.boxShadow = '0 0 15px rgba(255, 0, 0, 1)'
              pin.style.transform = 'rotate(-45deg) scale(1.1)'
            }
            if (label) {
              label.style.background = '#ff0000'
              label.style.boxShadow = '0 4px 12px rgba(255, 0, 0, 0.6)'
            }
          }
        })
        
        marker.on('mouseout', () => {
          const element = marker.getElement()
          if (element) {
            const pin = element.querySelector('.marker-pin')
            const label = element.querySelector('.marker-label')
            if (pin) {
              pin.style.background = '#ff4444'
              pin.style.boxShadow = '0 0 10px rgba(255, 0, 0, 0.8)'
              pin.style.transform = 'rotate(-45deg) scale(1)'
            }
            if (label) {
              label.style.background = '#ff4444'
              label.style.boxShadow = '0 2px 8px rgba(0, 0, 0, 0.3)'
            }
          }
        })
      })
    },
    
    handleMarkerClick(markerConfig) {
      console.log(`点击了标记: ${markerConfig.name}`)
      
      // 根据标记配置跳转到对应页面
      if (markerConfig.target === 'helloWorld') {
        this.$emit('navigate', 'helloWorld')
      }
    },
    
    goToBuildingDetail() {
      // 触发导航事件，跳转到HelloWorld页面（平面图）
      this.$emit('navigate', 'helloWorld')
    },
    
    resetView() {
      if (this.map) {
        // 重新计算边界并重置视图
        const imageWidth = 2000
        const imageHeight = 1500
        const southWest = this.map.unproject([0, imageHeight], this.map.getMaxZoom())
        const northEast = this.map.unproject([imageWidth, 0], this.map.getMaxZoom())
        const bounds = new L.LatLngBounds(southWest, northEast)
        this.map.fitBounds(bounds)
      }
    }
  }
}
</script>

<style scoped>
.campus-map-container {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.campus-map {
  width: 100%;
  height: 100%;
}

.map-controls {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-btn {
  padding: 10px 16px;
  background: #fff;
  border: 2px solid #1890ff;
  border-radius: 6px;
  color: #1890ff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.control-btn:hover {
  background: #1890ff;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(24, 144, 255, 0.4);
}

.control-btn:active {
  transform: translateY(0);
}

/* 自定义标记样式 */
.custom-marker {
  position: relative;
  text-align: center;
}

.marker-pin {
  width: 30px;
  height: 30px;
  background: #ff6b6b;
  border: 3px solid #fff;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.marker-label {
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: bold;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  border: 1px solid #ddd;
}

.marker-hover .marker-pin {
  background: #ff5252;
  transform: rotate(-45deg) scale(1.1);
}

.marker-hover .marker-label {
  background: #1890ff;
  color: #fff;
}

/* Leaflet 样式调整 */
:deep(.leaflet-control-zoom) {
  border: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

:deep(.leaflet-control-zoom a) {
  background: #fff;
  border: none;
  color: #333;
  font-weight: bold;
}

:deep(.leaflet-control-zoom a:hover) {
  background: #f5f5f5;
}
</style>