"use client"

import {useRef} from "react"
import {Circle, MapContainer, Marker, Popup, TileLayer} from "react-leaflet"
import L from "leaflet"
import "leaflet/dist/leaflet.css"

if (typeof window !== "undefined") {
  delete (L.Icon.Default.prototype as any)._getIconUrl
  L.Icon.Default.mergeOptions({
    iconRetinaUrl: "https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-icon-2x.png",
    iconUrl: "https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-icon.png",
    shadowUrl: "https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.7.1/images/marker-shadow.png",
  })
}

interface MapComponentProps {
  facilities?: Array<{
    id: string
    name: string
    type: "water_source" | "plant" | "pump" | "pipeline" | "user"
    position: [number, number]
    status: "normal" | "warning" | "alarm"
    data?: any
  }>
  alarms?: Array<{
    id: string
    position: [number, number]
    level: "high" | "medium" | "low"
    message: string
  }>
}

const facilityIcons = {
  water_source: "🏞️",
  plant: "🏭",
  pump: "⚡",
  pipeline: "🔧",
  user: "🏢",
}

const statusColors = {
  normal: "#52c41a",
  warning: "#faad14",
  alarm: "#ff4d4f",
}

const alarmColors = {
  high: "#ff4d4f",
  medium: "#faad14",
  low: "#1890ff",
}

export default function MapComponent({ facilities = [], alarms = [] }: MapComponentProps) {
  const mapRef = useRef<L.Map | null>(null)

  // 长沙地区的设施数据
  const defaultFacilities = [
    {
      id: "1",
      name: "湘江水源地",
      type: "water_source" as const,
      position: [28.2282, 112.9388] as [number, number],
      status: "normal" as const,
    },
    {
      id: "2",
      name: "长沙第一水厂",
      type: "plant" as const,
      position: [28.2382, 112.9488] as [number, number],
      status: "normal" as const,
    },
    {
      id: "3",
      name: "岳麓区增压泵站",
      type: "pump" as const,
      position: [28.2482, 112.9588] as [number, number],
      status: "warning" as const,
    },
    {
      id: "4",
      name: "五一大道主管网",
      type: "pipeline" as const,
      position: [28.1982, 112.9688] as [number, number],
      status: "normal" as const,
    },
    {
      id: "5",
      name: "中南大学用水点",
      type: "user" as const,
      position: [28.1582, 112.9388] as [number, number],
      status: "alarm" as const,
    },
    {
      id: "6",
      name: "橘子洲水源地",
      type: "water_source" as const,
      position: [28.2082, 112.9588] as [number, number],
      status: "normal" as const,
    },
  ]

  const defaultAlarms = [
    {
      id: "1",
      position: [28.2482, 112.9588] as [number, number],
      level: "medium" as const,
      message: "岳麓区泵站压力异常",
    },
    { id: "2", position: [28.1582, 112.9388] as [number, number], level: "high" as const, message: "中南大学流量超限" },
    { id: "3", position: [28.1882, 112.9288] as [number, number], level: "low" as const, message: "管网轻微漏损" },
  ]

  const displayFacilities = facilities.length > 0 ? facilities : defaultFacilities
  const displayAlarms = alarms.length > 0 ? alarms : defaultAlarms

  return (
    <MapContainer center={[28.2282, 112.9388]} zoom={12} className="h-full w-full" ref={mapRef}>
      <TileLayer
        attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
        url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
      />

      {/* 设施标记 */}
      {displayFacilities.map((facility) => (
        <Marker key={facility.id} position={facility.position}>
          <Popup>
            <div className="p-3">
              <h3 className="font-semibold text-lg mb-2">{facility.name}</h3>
              <p className="text-sm text-gray-600 mb-1">
                类型: {facilityIcons[facility.type]}
                {facility.type === "water_source" && "水源地"}
                {facility.type === "plant" && "水厂"}
                {facility.type === "pump" && "泵站"}
                {facility.type === "pipeline" && "管网"}
                {facility.type === "user" && "大用户"}
              </p>
              <p className="text-sm">
                状态:{" "}
                <span style={{ color: statusColors[facility.status] }} className="font-medium">
                  {facility.status === "normal" && "正常"}
                  {facility.status === "warning" && "预警"}
                  {facility.status === "alarm" && "报警"}
                </span>
              </p>
            </div>
          </Popup>
        </Marker>
      ))}

      {/* 报警圆圈 */}
      {displayAlarms.map((alarm) => (
        <Circle
          key={alarm.id}
          center={alarm.position}
          radius={300}
          pathOptions={{
            color: alarmColors[alarm.level],
            fillColor: alarmColors[alarm.level],
            fillOpacity: 0.2,
            weight: 2,
          }}
        >
          <Popup>
            <div className="p-3">
              <h3 className="font-semibold text-red-600 mb-2">🚨 报警信息</h3>
              <p className="text-sm mb-1">
                级别:{" "}
                <span className="font-medium" style={{ color: alarmColors[alarm.level] }}>
                  {alarm.level === "high" && "高级"}
                  {alarm.level === "medium" && "中级"}
                  {alarm.level === "low" && "低级"}
                </span>
              </p>
              <p className="text-sm">信息: {alarm.message}</p>
            </div>
          </Popup>
        </Circle>
      ))}
    </MapContainer>
  )
}