'use client'
import React, { useState, useEffect } from 'react'

// Available timeframes for automation (matching analysis page format)
const timeframes = [
  { label: '5m', value: '5' },
  { label: '15m', value: '15' },
  { label: '30m', value: '30' },
  { label: '1h', value: '60' },
  { label: '2h', value: '120' },
  { label: '4h', value: '240' },
  { label: '1d', value: 'D' },
]

export default function AutomationPageV2() {
  const [config, setConfig] = useState({
    mode: 'SIMULATION',
    dexProvider: 'DRIFT',
    symbol: 'SOLUSD',
    timeframe: '1h', // Primary timeframe for backwards compatibility
    selectedTimeframes: ['60'], // Multi-timeframe support
    tradingAmount: 100,
    maxLeverage: 5,
    stopLossPercent: 2,
    takeProfitPercent: 6,
    riskPercentage: 2
  })

  const [status, setStatus] = useState(null)
  const [balance, setBalance] = useState(null)
  const [positions, setPositions] = useState([])
  const [loading, setLoading] = useState(false)

  useEffect(() => {
    fetchStatus()
    fetchBalance()
    fetchPositions()
    
    const interval = setInterval(() => {
      fetchStatus()
      fetchBalance()
      fetchPositions()
    }, 30000)
    return () => clearInterval(interval)
  }, [])

  const toggleTimeframe = (timeframe) => {
    setConfig(prev => ({
      ...prev,
      selectedTimeframes: prev.selectedTimeframes.includes(timeframe)
        ? prev.selectedTimeframes.filter(tf => tf !== timeframe)
        : [...prev.selectedTimeframes, timeframe]
    }))
  }

  const fetchStatus = async () => {
    try {
      const response = await fetch('/api/automation/status')
      const data = await response.json()
      if (data.success) {
        setStatus(data.status)
      }
    } catch (error) {
      console.error('Failed to fetch status:', error)
    }
  }

  const fetchBalance = async () => {
    try {
      const response = await fetch('/api/drift/balance')
      const data = await response.json()
      if (data.success) {
        setBalance(data)
      }
    } catch (error) {
      console.error('Failed to fetch balance:', error)
    }
  }

  const fetchPositions = async () => {
    try {
      const response = await fetch('/api/drift/positions')
      const data = await response.json()
      if (data.success) {
        setPositions(data.positions || [])
      }
    } catch (error) {
      console.error('Failed to fetch positions:', error)
    }
  }

  const handleStart = async () => {
    setLoading(true)
    try {
      const response = await fetch('/api/automation/start', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json'
        },
        body: JSON.stringify(config)
      })
      const data = await response.json()
      if (data.success) {
        fetchStatus()
      } else {
        alert('Failed to start automation: ' + data.error)
      }
    } catch (error) {
      console.error('Failed to start automation:', error)
      alert('Failed to start automation')
    } finally {
      setLoading(false)
    }
  }

  const handleStop = async () => {
    setLoading(true)
    try {
      const response = await fetch('/api/automation/stop', {
        method: 'POST'
      })
      const data = await response.json()
      if (data.success) {
        fetchStatus()
      } else {
        alert('Failed to stop automation: ' + data.error)
      }
    } catch (error) {
      console.error('Failed to stop automation:', error)
      alert('Failed to stop automation')
    } finally {
      setLoading(false)
    }
  }

  return (
    <div className="space-y-6">
      <div className="bg-green-500 p-3 text-white text-center font-bold rounded">
        🚀 NEW AUTOMATION V2 - MULTI-TIMEFRAME READY 🚀
      </div>

      <div className="flex items-center justify-between">
        <div>
          <h1 className="text-3xl font-bold text-white">Automated Trading V2</h1>
          <p className="text-gray-400 mt-1">Drift Protocol - Multi-Timeframe Analysis</p>
        </div>
        <div className="flex space-x-4">
          {status?.isActive ? (
            <button
              onClick={handleStop}
              disabled={loading}
              className="px-6 py-3 bg-red-600 text-white rounded-lg hover:bg-red-700 transition-colors disabled:opacity-50 font-semibold"
            >
              {loading ? 'Stopping...' : 'STOP'}
            </button>
          ) : (
            <button
              onClick={handleStart}
              disabled={loading}
              className="px-6 py-3 bg-green-600 text-white rounded-lg hover:bg-green-700 transition-colors disabled:opacity-50 font-semibold"
            >
              {loading ? 'Starting...' : 'START'}
            </button>
          )}
        </div>
      </div>
      
      <div className="grid grid-cols-1 xl:grid-cols-3 gap-6">
        {/* Configuration Panel */}
        <div className="xl:col-span-2 space-y-6">
          <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
            <h3 className="text-xl font-bold text-white mb-6">Configuration</h3>
            
            {/* Trading Mode */}
            <div className="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6">
              <div className="space-y-3">
                <label className="block text-sm font-bold text-blue-400">Trading Mode</label>
                <div className="space-y-2">
                  <label className="flex items-center space-x-3 cursor-pointer p-3 rounded-lg border border-gray-600 hover:border-blue-500 transition-colors">
                    <input 
                      type="radio" 
                      className="w-4 h-4 text-blue-600" 
                      name="mode" 
                      checked={config.mode === 'SIMULATION'}
                      onChange={() => setConfig({...config, mode: 'SIMULATION'})}
                      disabled={status?.isActive}
                    />
                    <span className="text-white">Paper Trading</span>
                  </label>
                  <label className="flex items-center space-x-3 cursor-pointer p-3 rounded-lg border border-gray-600 hover:border-green-500 transition-colors">
                    <input 
                      type="radio" 
                      className="w-4 h-4 text-green-600" 
                      name="mode" 
                      checked={config.mode === 'LIVE'}
                      onChange={() => setConfig({...config, mode: 'LIVE'})}
                      disabled={status?.isActive}
                    />
                    <span className="text-white font-semibold">Live Trading</span>
                  </label>
                </div>
              </div>

              <div className="space-y-3">
                <label className="block text-sm font-bold text-purple-400">Leverage</label>
                <select 
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-purple-400"
                  value={config.maxLeverage}
                  onChange={(e) => setConfig({...config, maxLeverage: parseInt(e.target.value)})}
                  disabled={status?.isActive}
                >
                  <option value="1">1x - Spot</option>
                  <option value="2">2x</option>
                  <option value="3">3x</option>
                  <option value="5">5x</option>
                  <option value="10">10x</option>
                  <option value="20">20x</option>
                </select>
              </div>
            </div>

            {/* Symbol and Position Size */}
            <div className="grid grid-cols-1 md:grid-cols-3 gap-4 mb-6">
              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Symbol</label>
                <select
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  value={config.symbol}
                  onChange={(e) => setConfig({...config, symbol: e.target.value})}
                  disabled={status?.isActive}
                >
                  <option value="SOLUSD">SOL/USD</option>
                  <option value="BTCUSD">BTC/USD</option>
                  <option value="ETHUSD">ETH/USD</option>
                  <option value="APTUSD">APT/USD</option>
                  <option value="AVAXUSD">AVAX/USD</option>
                  <option value="DOGEUSD">DOGE/USD</option>
                </select>
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Position Size ($)</label>
                <input
                  type="number"
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  min="10"
                  step="10"
                  value={config.tradingAmount}
                  onChange={(e) => setConfig({...config, tradingAmount: parseFloat(e.target.value)})}
                  disabled={status?.isActive}
                />
                {balance && (
                  <p className="text-xs text-gray-400 mt-1">
                    Available: ${parseFloat(balance.availableBalance).toFixed(2)} • Using {((config.tradingAmount / balance.availableBalance) * 100).toFixed(1)}% of balance
                  </p>
                )}
                {balance && config.maxLeverage > 1 && (
                  <p className="text-xs text-green-400 mt-1">
                    With {config.maxLeverage}x leverage: ${(config.tradingAmount * config.maxLeverage).toFixed(2)} position size
                  </p>
                )}
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Auto-Size (%)</label>
                <select
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  onChange={(e) => {
                    if (balance && e.target.value) {
                      const percentage = parseFloat(e.target.value);
                      const autoAmount = (balance.availableBalance * percentage / 100);
                      setConfig({...config, tradingAmount: Math.round(autoAmount)});
                    }
                  }}
                  disabled={status?.isActive || !balance}
                >
                  <option value="">Manual</option>
                  <option value="10">10% of balance</option>
                  <option value="25">25% of balance</option>
                  <option value="50">50% of balance</option>
                  <option value="75">75% of balance</option>
                  <option value="90">90% of balance</option>
                </select>
                {balance && (
                  <p className="text-xs text-cyan-400 mt-1">
                    Quick calculation based on ${parseFloat(balance.availableBalance).toFixed(2)} balance
                  </p>
                )}
              </div>
            </div>

            {/* MULTI-TIMEFRAME SELECTION */}
            <div className="mb-6">
              <label className="block text-sm font-medium text-gray-300 mb-2">
                Analysis Timeframes
                <span className="text-xs text-cyan-400 ml-2">({config.selectedTimeframes.length} selected)</span>
              </label>
              
              {/* Timeframe Checkboxes */}
              <div className="grid grid-cols-4 gap-2 mb-3">
                {timeframes.map(tf => (
                  <label key={tf.value} className="group relative cursor-pointer">
                    <input
                      type="checkbox"
                      checked={config.selectedTimeframes.includes(tf.value)}
                      onChange={() => toggleTimeframe(tf.value)}
                      disabled={status?.isActive}
                      className="sr-only"
                    />
                    <div className={`flex items-center justify-center p-2 rounded-lg border transition-all text-xs font-medium ${
                      config.selectedTimeframes.includes(tf.value)
                        ? 'border-cyan-500 bg-cyan-500/10 text-cyan-300 shadow-lg shadow-cyan-500/20'
                        : status?.isActive
                        ? 'border-gray-700 bg-gray-800/30 text-gray-500 cursor-not-allowed'
                        : 'border-gray-700 bg-gray-800/30 text-gray-400 hover:border-gray-600 hover:bg-gray-800/50 hover:text-gray-300'
                    }`}>
                      {tf.label}
                      {config.selectedTimeframes.includes(tf.value) && (
                        <div className="absolute top-0.5 right-0.5 w-1.5 h-1.5 bg-cyan-400 rounded-full"></div>
                      )}
                    </div>
                  </label>
                ))}
              </div>

              {/* Selected Timeframes Display */}
              {config.selectedTimeframes.length > 0 && (
                <div className="p-2 bg-gray-800/30 rounded-lg mb-3">
                  <div className="text-xs text-gray-400">
                    Selected: <span className="text-cyan-400">
                      {config.selectedTimeframes.map(tf => timeframes.find(t => t.value === tf)?.label).filter(Boolean).join(', ')}
                    </span>
                  </div>
                  <div className="text-xs text-gray-500 mt-1">
                    💡 Multiple timeframes provide more robust analysis
                  </div>
                </div>
              )}
              
              {/* Quick Selection Buttons */}
              <div className="flex gap-2">
                <button
                  type="button"
                  onClick={() => setConfig({...config, selectedTimeframes: ['5', '15', '30']})}
                  disabled={status?.isActive}
                  className="py-1 px-2 rounded text-xs font-medium bg-green-600/20 text-green-300 hover:bg-green-600/30 transition-all disabled:opacity-50 disabled:cursor-not-allowed"
                >
                  📈 Scalping
                </button>
                <button
                  type="button"
                  onClick={() => setConfig({...config, selectedTimeframes: ['60', '120']})}
                  disabled={status?.isActive}
                  className="py-1 px-2 rounded text-xs font-medium bg-blue-600/20 text-blue-300 hover:bg-blue-600/30 transition-all disabled:opacity-50 disabled:cursor-not-allowed"
                >
                  ⚡ Day Trading
                </button>
                <button
                  type="button"
                  onClick={() => setConfig({...config, selectedTimeframes: ['240', 'D']})}
                  disabled={status?.isActive}
                  className="py-1 px-2 rounded text-xs font-medium bg-purple-600/20 text-purple-300 hover:bg-purple-600/30 transition-all disabled:opacity-50 disabled:cursor-not-allowed"
                >
                  🎯 Swing Trading
                </button>
              </div>
            </div>

            {/* Risk Management */}
            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Stop Loss (%)</label>
                <input
                  type="number"
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  min="0.5"
                  max="20"
                  step="0.5"
                  value={config.stopLossPercent}
                  onChange={(e) => setConfig({...config, stopLossPercent: parseFloat(e.target.value)})}
                  disabled={status?.isActive}
                />
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Take Profit (%)</label>
                <input
                  type="number"
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  min="1"
                  max="50"
                  step="1"
                  value={config.takeProfitPercent}
                  onChange={(e) => setConfig({...config, takeProfitPercent: parseFloat(e.target.value)})}
                  disabled={status?.isActive}
                />
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-300 mb-2">Risk Per Trade (%)</label>
                <input
                  type="number"
                  className="w-full p-3 bg-gray-700 border border-gray-600 rounded-lg text-white focus:border-blue-500"
                  min="0.5"
                  max="10"
                  step="0.5"
                  value={config.riskPercentage}
                  onChange={(e) => setConfig({...config, riskPercentage: parseFloat(e.target.value)})}
                  disabled={status?.isActive}
                />
              </div>
            </div>
          </div>
        </div>

        {/* Status Panels */}
        <div className="space-y-6">
          {/* Account Status */}
          <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
            <div className="flex items-center justify-between mb-4">
              <h3 className="text-xl font-bold text-white">Account Status</h3>
              <button 
                onClick={fetchBalance}
                className="px-3 py-1 bg-blue-600 text-white rounded hover:bg-blue-700 transition-colors disabled:opacity-50 text-sm"
              >
                Sync
              </button>
            </div>
            {balance ? (
              <div className="space-y-3">
                <div className="flex justify-between">
                  <span className="text-gray-300">Available Balance:</span>
                  <span className="text-green-400 font-semibold">${parseFloat(balance.availableBalance).toFixed(2)}</span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Account Value:</span>
                  <span className="text-green-400 font-semibold">${parseFloat(balance.accountValue || balance.availableBalance).toFixed(2)}</span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Unrealized P&L:</span>
                  <span className={`font-semibold ${balance.unrealizedPnl > 0 ? 'text-green-400' : balance.unrealizedPnl < 0 ? 'text-red-400' : 'text-gray-400'}`}>
                    ${parseFloat(balance.unrealizedPnl || 0).toFixed(2)}
                  </span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Open Positions:</span>
                  <span className="text-yellow-400 font-semibold">{positions.length}</span>
                </div>
              </div>
            ) : (
              <div className="text-center py-4">
                <div className="text-gray-400">Loading account data...</div>
              </div>
            )}
          </div>

          {/* Bot Status */}
          <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
            <h3 className="text-xl font-bold text-white mb-4">Bot Status</h3>
            {status ? (
              <div className="space-y-3">
                <div className="flex justify-between">
                  <span className="text-gray-300">Status:</span>
                  <span className={`font-semibold px-2 py-1 rounded ${
                    status.isActive ? 'bg-green-600 text-white' : 'bg-red-600 text-white'
                  }`}>
                    {status.isActive ? 'ACTIVE' : 'STOPPED'}
                  </span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Mode:</span>
                  <span className={`font-semibold ${
                    status.mode === 'LIVE' ? 'text-red-400' : 'text-blue-400'
                  }`}>
                    {status.mode}
                  </span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Protocol:</span>
                  <span className="text-green-400 font-semibold">DRIFT</span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Symbol:</span>
                  <span className="text-white font-semibold">{status.symbol}</span>
                </div>
                <div className="flex justify-between">
                  <span className="text-gray-300">Leverage:</span>
                  <span className="text-yellow-400 font-semibold">{config.maxLeverage}x</span>
                </div>
              </div>
            ) : (
              <p className="text-gray-400">Loading bot status...</p>
            )}
          </div>

          {/* Trading Metrics */}
          <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
            <h3 className="text-xl font-bold text-white mb-4">Trading Metrics</h3>
            <div className="grid grid-cols-2 gap-4">
              <div className="text-center">
                <div className="text-2xl font-bold text-green-400">
                  ${balance ? parseFloat(balance.accountValue || balance.availableBalance).toFixed(2) : '0.00'}
                </div>
                <div className="text-xs text-gray-400">Portfolio</div>
              </div>
              <div className="text-center">
                <div className="text-2xl font-bold text-blue-400">
                  {balance ? parseFloat(balance.leverage || 0).toFixed(1) : '0.0'}%
                </div>
                <div className="text-xs text-gray-400">Leverage Used</div>
              </div>
              <div className="text-center">
                <div className="text-2xl font-bold text-red-400">
                  ${balance ? parseFloat(balance.unrealizedPnl || 0).toFixed(2) : '0.00'}
                </div>
                <div className="text-xs text-gray-400">Unrealized P&L</div>
              </div>
              <div className="text-center">
                <div className="text-2xl font-bold text-yellow-400">
                  {positions.length}
                </div>
                <div className="text-xs text-gray-400">Open Positions</div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  )
}