import { useState, useEffect } from 'react'

interface DroneInfo {
  id: string
  name: string
  status: 'active' | 'returning' | 'standby' | 'charging'
  battery: number
  altitude: number
  speed: number
  sensor: string
  color: string
}

const drones: DroneInfo[] = [
  { id: 'D-01', name: 'DJI M300 #1', status: 'active', battery: 78, altitude: 150, speed: 12, sensor: '광학 4K', color: 'var(--blue)' },
  { id: 'D-02', name: 'DJI M300 #2', status: 'active', battery: 65, altitude: 200, speed: 8, sensor: 'IR 열화상', color: 'var(--red)' },
  { id: 'D-03', name: 'Mavic 3E', status: 'active', battery: 82, altitude: 120, speed: 15, sensor: '광학 4K', color: 'var(--purple)' },
  { id: 'D-04', name: 'DJI M30T', status: 'active', battery: 45, altitude: 180, speed: 10, sensor: '다중센서', color: 'var(--green)' },
  { id: 'D-05', name: 'DJI M300 #3', status: 'returning', battery: 12, altitude: 80, speed: 18, sensor: '광학 4K', color: 'var(--orange)' },
  { id: 'D-06', name: 'Mavic 3E #2', status: 'charging', battery: 35, altitude: 0, speed: 0, sensor: '광학 4K', color: 'var(--t3)' },
]

interface AlertItem {
  time: string
  type: 'warning' | 'info' | 'danger'
  message: string
}

const alerts: AlertItem[] = [
  { time: '15:42', type: 'danger', message: 'D-05 배터리 부족 — 자동 복귀' },
  { time: '15:38', type: 'warning', message: '오염원 신규 탐지 (34.82°N)' },
  { time: '15:35', type: 'info', message: 'D-01~D-03 다시점 융합 완료' },
  { time: '15:30', type: 'warning', message: 'AIS OFF 선박 2척 추가 탐지' },
  { time: '15:25', type: 'info', message: 'D-04 센서 데이터 수집 시작' },
  { time: '15:20', type: 'danger', message: '유류오염 확산 속도 증가 감지' },
  { time: '15:15', type: 'info', message: '3D 재구성 시작 (불명선박-B)' },
]

export function RealtimeDrone() {
  const [reconProgress, setReconProgress] = useState(0)
  const [reconDone, setReconDone] = useState(false)
  const [selectedDrone, setSelectedDrone] = useState<string | null>(null)

  useEffect(() => {
    if (reconDone) return
    const timer = setInterval(() => {
      setReconProgress(prev => {
        if (prev >= 100) {
          clearInterval(timer)
          setReconDone(true)
          return 100
        }
        return prev + 2
      })
    }, 300)
    return () => clearInterval(timer)
  }, [reconDone])

  const statusLabel = (s: string) => {
    if (s === 'active') return { text: '비행중', cls: 'text-status-green' }
    if (s === 'returning') return { text: '복귀중', cls: 'text-status-orange' }
    if (s === 'charging') return { text: '충전중', cls: 'text-text-3' }
    return { text: '대기', cls: 'text-text-3' }
  }

  const alertColor = (t: string) =>
    t === 'danger' ? 'border-l-status-red bg-[rgba(239,68,68,0.05)]'
    : t === 'warning' ? 'border-l-status-orange bg-[rgba(249,115,22,0.05)]'
    : 'border-l-primary-blue bg-[rgba(59,130,246,0.05)]'

  return (
    <div className="flex h-full overflow-hidden" style={{ margin: '-20px -24px', height: 'calc(100% + 40px)' }}>
      {/* Map Area */}
      <div className="flex-1 relative bg-bg-0 overflow-hidden">
        {/* Simulated map background */}
        <div className="absolute inset-0" style={{ background: 'radial-gradient(ellipse at 50% 50%, #0c1a2e, #060c18)' }}>
          {/* Grid lines */}
          <div className="absolute inset-0 opacity-[0.06]" style={{ backgroundImage: 'linear-gradient(rgba(6,182,212,0.3) 1px, transparent 1px), linear-gradient(90deg, rgba(6,182,212,0.3) 1px, transparent 1px)', backgroundSize: '60px 60px' }} />
          {/* Coastline hint */}
          <div className="absolute" style={{ top: '20%', left: '5%', width: '40%', height: '60%', border: '1px solid rgba(34,197,94,0.15)', borderRadius: '40% 60% 50% 30%' }} />
          {/* Drone position markers */}
          {drones.filter(d => d.status !== 'charging').map((d, i) => (
            <div
              key={d.id}
              className="absolute cursor-pointer"
              style={{ top: `${25 + i * 12}%`, left: `${30 + i * 10}%` }}
              onClick={() => setSelectedDrone(d.id)}
            >
              <div className="w-3 h-3 rounded-full animate-pulse-dot" style={{ background: d.color, boxShadow: `0 0 8px ${d.color}` }} />
              <div className="absolute -top-4 left-4 text-[8px] font-bold font-mono whitespace-nowrap" style={{ color: d.color }}>{d.id}</div>
            </div>
          ))}
          {/* Oil spill areas */}
          <div className="absolute" style={{ top: '35%', left: '45%', width: '120px', height: '80px', background: 'rgba(239,68,68,0.08)', border: '1px solid rgba(239,68,68,0.25)', borderRadius: '40% 60% 50% 40%' }} />
        </div>

        {/* Overlay Stats */}
        <div className="absolute top-2.5 left-2.5 flex gap-1.5 z-[2]">
          {[
            { label: '탐지 객체', value: '847', unit: '건', color: 'text-primary-blue' },
            { label: '식별 선박', value: '312', unit: '척', color: 'text-primary-cyan' },
            { label: 'AIS OFF', value: '14', unit: '척', color: 'text-status-red' },
            { label: '오염 탐지', value: '3', unit: '건', color: 'text-status-orange' },
          ].map((s, i) => (
            <div key={i} className="bg-[rgba(15,21,36,0.9)] backdrop-blur-sm rounded-sm px-2.5 py-1.5 border border-border">
              <div className="text-[7px] text-text-3">{s.label}</div>
              <div>
                <span className={`font-mono font-bold text-base ${s.color}`}>{s.value}</span>
                <span className="text-[7px] text-text-3 ml-0.5">{s.unit}</span>
              </div>
            </div>
          ))}
        </div>

        {/* 3D Reconstruction Progress */}
        <div className="absolute bottom-2.5 right-2.5 bg-[rgba(15,21,36,0.9)] rounded-sm px-3 py-2 border z-[3] min-w-[175px] cursor-pointer transition-colors hover:border-primary-cyan/40" style={{ borderColor: 'rgba(6,182,212,0.18)' }}>
          <div className="flex items-center justify-between mb-1">
            <span className="text-[9px] font-bold text-primary-cyan">🧊 3D 재구성</span>
            <span className="font-mono font-bold text-[13px] text-primary-cyan">{reconProgress}%</span>
          </div>
          <div className="w-full h-[3px] bg-white/[0.06] rounded-sm mb-1">
            <div className="h-full rounded-sm transition-all duration-500" style={{ width: `${reconProgress}%`, background: 'linear-gradient(90deg, var(--cyan), var(--blue))' }} />
          </div>
          {!reconDone ? (
            <div className="text-[7px] text-text-3">D-01~D-03 다각도 영상 융합중...</div>
          ) : (
            <div className="text-[8px] font-bold text-status-green mt-0.5 animate-pulse-dot">✅ 완료 — 클릭하여 정밀분석</div>
          )}
        </div>

        {/* Live Feed Panel */}
        {selectedDrone && (() => {
          const drone = drones.find(d => d.id === selectedDrone)
          if (!drone) return null
          return (
            <div className="absolute bottom-0 left-0 right-0 bg-[rgba(15,21,36,0.95)] z-[5] border-t" style={{ borderColor: 'rgba(59,130,246,0.2)', height: 190 }}>
              <div className="flex items-center justify-between px-3 py-1.5 border-b border-border">
                <div className="text-[10px] font-bold flex items-center gap-1.5" style={{ color: drone.color }}>
                  <div className="w-1.5 h-1.5 rounded-full animate-pulse-dot" style={{ background: drone.color }} />
                  {drone.id} 실시간 영상
                </div>
                <button onClick={() => setSelectedDrone(null)} className="w-5 h-5 rounded bg-white/5 border border-border text-text-3 text-[11px] flex items-center justify-center cursor-pointer hover:text-text-1">✕</button>
              </div>
              <div className="grid h-[calc(100%-30px)]" style={{ gridTemplateColumns: '1fr 180px' }}>
                <div className="relative overflow-hidden" style={{ background: 'radial-gradient(ellipse at center, #0c1a2e, #060c18)' }}>
                  {/* Simulated video feed */}
                  <div className="absolute inset-0 flex items-center justify-center">
                    <div className="text-text-3/20 text-2xl font-mono">LIVE FEED</div>
                  </div>
                  {/* HUD overlay */}
                  <div className="absolute top-1.5 left-2 z-[2]">
                    <span className="text-[11px] font-bold" style={{ color: drone.color }}>{drone.id}</span>
                    <span className="text-[7px] px-1 py-px rounded bg-white/[0.08] ml-1">{drone.sensor}</span>
                    <div className="text-[7px] text-text-3 font-mono mt-0.5">34.82°N, 128.95°E</div>
                  </div>
                  <div className="absolute top-1.5 right-2 z-[2] flex items-center gap-1 text-[8px] font-bold text-status-red">
                    <div className="w-1.5 h-1.5 rounded-full bg-status-red" />REC
                  </div>
                  <div className="absolute bottom-1 left-2 z-[2] text-[7px] text-text-3">
                    ALT {drone.altitude}m · SPD {drone.speed}m/s · HDG 045°
                  </div>
                </div>
                <div className="p-2 overflow-auto text-[9px] border-l border-border">
                  <div className="font-bold text-text-2 mb-1.5 font-korean">비행 정보</div>
                  {[
                    ['드론 ID', drone.id],
                    ['기체', drone.name],
                    ['배터리', `${drone.battery}%`],
                    ['고도', `${drone.altitude}m`],
                    ['속도', `${drone.speed}m/s`],
                    ['센서', drone.sensor],
                    ['상태', statusLabel(drone.status).text],
                  ].map(([k, v], i) => (
                    <div key={i} className="flex justify-between py-0.5">
                      <span className="text-text-3 font-korean">{k}</span>
                      <span className="font-mono font-semibold text-text-1">{v}</span>
                    </div>
                  ))}
                </div>
              </div>
            </div>
          )
        })()}
      </div>

      {/* Right Sidebar */}
      <div className="w-[260px] bg-[rgba(15,21,36,0.88)] border-l border-border flex flex-col overflow-auto">
        {/* Drone Swarm Status */}
        <div className="p-2.5 px-3 border-b border-border">
          <div className="text-[10px] font-bold text-text-3 mb-1.5 uppercase tracking-wider">군집 드론 현황 · 4/6 운용</div>
          <div className="flex flex-col gap-1">
            {drones.map(d => {
              const st = statusLabel(d.status)
              return (
                <div
                  key={d.id}
                  onClick={() => d.status !== 'charging' && setSelectedDrone(d.id)}
                  className={`flex items-center gap-2 px-2 py-1.5 rounded-sm cursor-pointer transition-colors ${
                    selectedDrone === d.id ? 'bg-[rgba(6,182,212,0.08)] border border-primary-cyan/20' : 'hover:bg-white/[0.02] border border-transparent'
                  }`}
                >
                  <div className="w-2 h-2 rounded-full" style={{ background: d.color }} />
                  <div className="flex-1 min-w-0">
                    <div className="text-[9px] font-bold" style={{ color: d.color }}>{d.id}</div>
                    <div className="text-[7px] text-text-3 truncate">{d.name}</div>
                  </div>
                  <div className="text-right">
                    <div className={`text-[8px] font-semibold ${st.cls}`}>{st.text}</div>
                    <div className="text-[7px] font-mono text-text-3">{d.battery}%</div>
                  </div>
                </div>
              )
            })}
          </div>
        </div>

        {/* Multi-Angle Analysis */}
        <div className="p-2.5 px-3 border-b border-border">
          <div className="text-[10px] font-bold text-text-3 mb-1.5 uppercase tracking-wider">다각화 분석</div>
          <div className="grid grid-cols-2 gap-1">
            {[
              { icon: '🎯', label: '다시점 융합', value: '28건', sub: '360° 식별' },
              { icon: '🧊', label: '3D 재구성', value: '12건', sub: '선박+오염원' },
              { icon: '📡', label: '다센서 융합', value: '45건', sub: '광학+IR+SAR' },
              { icon: '🛢️', label: '오염원 3D', value: '3건', sub: '유류+HNS' },
            ].map((a, i) => (
              <div key={i} className="bg-white/[0.02] rounded-sm px-1.5 py-1.5 border border-white/[0.03]">
                <div className="text-[10px] mb-px">{a.icon}</div>
                <div className="text-[7px] text-text-3">{a.label}</div>
                <div className="text-xs font-bold font-mono text-primary-cyan my-px">{a.value}</div>
                <div className="text-[6px] text-text-3">{a.sub}</div>
              </div>
            ))}
          </div>
        </div>

        {/* Real-time Alerts */}
        <div className="p-2.5 px-3 flex-1 overflow-auto">
          <div className="text-[10px] font-bold text-text-3 mb-1.5 uppercase tracking-wider">실시간 경보</div>
          <div className="flex flex-col gap-1">
            {alerts.map((a, i) => (
              <div key={i} className={`px-2 py-1.5 border-l-2 rounded-sm text-[9px] font-korean ${alertColor(a.type)}`}>
                <span className="font-mono text-text-3 mr-1.5">{a.time}</span>
                <span className="text-text-2">{a.message}</span>
              </div>
            ))}
          </div>
        </div>
      </div>
    </div>
  )
}