'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',
    selectedTimeframes: ['60'], // Multi-timeframe support
    tradingAmount: 100,
    balancePercentage: 50, // Default to 50% of available balance
  })

  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 () => {
    console.log('🚀 Starting automation...')
    setLoading(true)
    try {
      if (config.selectedTimeframes.length === 0) {
        console.error('No timeframes selected')
        setLoading(false)
        return
      }

      const automationConfig = {
        symbol: config.symbol,
        selectedTimeframes: config.selectedTimeframes,
        mode: config.mode,
        tradingAmount: config.tradingAmount,
        leverage: config.leverage,
        stopLoss: config.stopLoss,
        takeProfit: config.takeProfit
      }

      const response = await fetch('/api/automation/start', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify(automationConfig)
      })
      
      const data = await response.json()
      
      if (data.success) {
        console.log('✅ Automation started successfully')
        fetchStatus()
      } else {
        console.error('Failed to start automation:', data.error)
      }
    } catch (error) {
      console.error('Failed to start automation:', error)
    } finally {
      setLoading(false)
    }
  }

  const handleStop = async () => {
    console.log('🛑 Stopping automation...')
    setLoading(true)
    try {
      const response = await fetch('/api/automation/stop', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' }
      })
      
      const data = await response.json()
      
      if (data.success) {
        console.log('✅ Automation stopped successfully')
        fetchStatus()
      } else {
        console.error('Failed to stop automation:', data.error)
      }
    } catch (error) {
      console.error('Failed to stop automation:', error)
    } finally {
      setLoading(false)
    }
  }

  return (
    <div className="space-y-6">
      {/* Header with Start/Stop */}
      <div className="flex items-center justify-between">
        <div>
          <h1 className="text-3xl font-bold text-white">Automated Trading</h1>
          <p className="text-gray-400 mt-1">Multi-Timeframe Analysis</p>
        </div>
        <div className="flex space-x-3">
          {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>

            {/* Symbol and Position Size */}
            <div className="grid grid-cols-1 md:grid-cols-2 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">
                  Balance to Use: {config.balancePercentage}% 
                  {balance && ` ($${(parseFloat(balance.availableBalance) * config.balancePercentage / 100).toFixed(2)})`}
                </label>
                <input
                  type="range"
                  className="w-full h-2 bg-gray-700 rounded-lg appearance-none cursor-pointer"
                  style={{
                    background: `linear-gradient(to right, #3b82f6 0%, #3b82f6 ${config.balancePercentage}%, #374151 ${config.balancePercentage}%, #374151 100%)`
                  }}
                  min="10"
                  max="100"
                  step="5"
                  value={config.balancePercentage}
                  onChange={(e) => {
                    const percentage = parseFloat(e.target.value);
                    const newAmount = balance ? (parseFloat(balance.availableBalance) * percentage / 100) : 100;
                    setConfig({
                      ...config, 
                      balancePercentage: percentage,
                      tradingAmount: Math.round(newAmount)
                    });
                  }}
                  disabled={status?.isActive}
                />
                <div className="flex justify-between text-xs text-gray-400 mt-1">
                  <span>10%</span>
                  <span>50%</span>
                  <span>100%</span>
                </div>
              </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>
                {config.selectedTimeframes.length === 0 && (
                  <span className="text-xs text-red-400 ml-2">⚠️ At least one timeframe required</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 || tf).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>
          </div>
        </div>

        {/* Status and Info Panel */}
        <div className="space-y-6">
          {/* Status */}
          <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
            <h3 className="text-lg font-bold text-white mb-4">Bot Status</h3>
            
            <div className="space-y-3">
              <div className="flex justify-between items-center">
                <span className="text-gray-400">Status:</span>
                <span className={`px-2 py-1 rounded text-xs font-semibold ${
                  status?.isActive ? 'bg-green-600 text-white' : 'bg-gray-600 text-gray-300'
                }`}>
                  {status?.isActive ? 'RUNNING' : 'STOPPED'}
                </span>
              </div>
              
              {status?.isActive && (
                <>
                  <div className="flex justify-between items-center">
                    <span className="text-gray-400">Symbol:</span>
                    <span className="text-white font-medium">{status.symbol}</span>
                  </div>
                  
                  <div className="flex justify-between items-center">
                    <span className="text-gray-400">Mode:</span>
                    <span className={`px-2 py-1 rounded text-xs font-semibold ${
                      status.mode === 'LIVE' ? 'bg-red-600 text-white' : 'bg-blue-600 text-white'
                    }`}>
                      {status.mode}
                    </span>
                  </div>
                  
                  <div className="flex justify-between items-center">
                    <span className="text-gray-400">Timeframes:</span>
                    <span className="text-cyan-400 text-xs">
                      {status.timeframes?.map(tf => timeframes.find(t => t.value === tf)?.label || tf).join(', ')}
                    </span>
                  </div>
                </>
              )}
            </div>
          </div>

          {/* Balance */}
          {balance && (
            <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
              <h3 className="text-lg font-bold text-white mb-4">Account Balance</h3>
              
              <div className="space-y-3">
                <div className="flex justify-between items-center">
                  <span className="text-gray-400">Available:</span>
                  <span className="text-green-400 font-semibold">${balance.availableBalance}</span>
                </div>
                
                <div className="flex justify-between items-center">
                  <span className="text-gray-400">Total:</span>
                  <span className="text-white font-medium">${balance.totalCollateral}</span>
                </div>
                
                <div className="flex justify-between items-center">
                  <span className="text-gray-400">Positions:</span>
                  <span className="text-yellow-400">{balance.positions || 0}</span>
                </div>
              </div>
            </div>
          )}

          {/* Positions */}
          {positions.length > 0 && (
            <div className="bg-gray-800 p-6 rounded-lg border border-gray-700">
              <h3 className="text-lg font-bold text-white mb-4">Open Positions</h3>
              
              <div className="space-y-2">
                {positions.map((position, index) => (
                  <div key={index} className="flex justify-between items-center p-2 bg-gray-700 rounded">
                    <span className="text-white">{position.symbol}</span>
                    <span className={`font-semibold ${
                      position.side === 'LONG' ? 'text-green-400' : 'text-red-400'
                    }`}>
                      {position.side} ${position.size}
                    </span>
                  </div>
                ))}
              </div>
            </div>
          )}
        </div>
      </div>
    </div>
  )
}
