/**
 * PredictionCard Component
 * Displays ML prediction signal details in a card format
 */

import React from 'react';
import {
  ArrowTrendingUpIcon,
  ArrowTrendingDownIcon,
  ShieldCheckIcon,
  ClockIcon,
  ChartBarIcon,
  BoltIcon,
} from '@heroicons/react/24/solid';
import type { MLSignal } from '../../../services/mlService';
import { AMDPhaseIndicator } from './AMDPhaseIndicator';

interface PredictionCardProps {
  signal: MLSignal;
  onExecuteTrade?: (signal: MLSignal) => void;
  showExecuteButton?: boolean;
  className?: string;
}

export const PredictionCard: React.FC<PredictionCardProps> = ({
  signal,
  onExecuteTrade,
  showExecuteButton = true,
  className = '',
}) => {
  // Calculate signal age
  const getSignalAge = () => {
    const created = new Date(signal.created_at);
    const now = new Date();
    const diffMs = now.getTime() - created.getTime();
    const diffMins = Math.floor(diffMs / 60000);

    if (diffMins < 60) return `${diffMins}m ago`;
    const diffHours = Math.floor(diffMins / 60);
    if (diffHours < 24) return `${diffHours}h ago`;
    const diffDays = Math.floor(diffHours / 24);
    return `${diffDays}d ago`;
  };

  // Check if signal is still valid
  const isValid = new Date(signal.valid_until) > new Date();

  // Calculate potential profit/loss percentages
  const calculatePnLPercentages = () => {
    const entryPrice = signal.entry_price;
    const profitPercent = ((signal.take_profit - entryPrice) / entryPrice) * 100;
    const lossPercent = ((entryPrice - signal.stop_loss) / entryPrice) * 100;

    return {
      profit: Math.abs(profitPercent),
      loss: Math.abs(lossPercent),
    };
  };

  const pnl = calculatePnLPercentages();

  // Get confidence color
  const getConfidenceColor = (confidence: number) => {
    if (confidence >= 0.7) return 'text-green-400';
    if (confidence >= 0.5) return 'text-yellow-400';
    return 'text-red-400';
  };

  return (
    <div className={`card p-5 ${!isValid ? 'opacity-60' : ''} ${className}`}>
      {/* Header */}
      <div className="flex items-start justify-between mb-4">
        <div className="flex items-center gap-3">
          <div
            className={`p-2.5 rounded-lg ${
              signal.direction === 'long' ? 'bg-green-500/20' : 'bg-red-500/20'
            }`}
          >
            {signal.direction === 'long' ? (
              <ArrowTrendingUpIcon className="w-5 h-5 text-green-400" />
            ) : (
              <ArrowTrendingDownIcon className="w-5 h-5 text-red-400" />
            )}
          </div>
          <div>
            <h3 className="text-lg font-bold text-white">{signal.symbol}</h3>
            <p className="text-xs text-gray-400">{getSignalAge()}</p>
          </div>
        </div>

        {/* Direction and Confidence Badge */}
        <div className="text-right">
          <div
            className={`inline-flex items-center px-3 py-1 rounded-full font-bold text-sm mb-1 ${
              signal.direction === 'long'
                ? 'bg-green-500/20 text-green-400'
                : 'bg-red-500/20 text-red-400'
            }`}
          >
            {signal.direction.toUpperCase()}
          </div>
          <div className={`text-lg font-bold ${getConfidenceColor(signal.confidence_score)}`}>
            {Math.round(signal.confidence_score * 100)}%
          </div>
        </div>
      </div>

      {/* AMD Phase Indicator (compact) */}
      <div className="mb-4">
        <AMDPhaseIndicator
          phase={signal.amd_phase as any}
          confidence={signal.confidence_score}
          compact={true}
        />
      </div>

      {/* Price Levels */}
      <div className="grid grid-cols-3 gap-2 mb-4">
        <div className="text-center p-3 bg-gray-800 rounded-lg">
          <p className="text-xs text-gray-400 mb-1">Entry</p>
          <p className="font-mono font-bold text-white text-sm">
            ${signal.entry_price.toFixed(2)}
          </p>
        </div>
        <div className="text-center p-3 bg-red-900/30 border border-red-800 rounded-lg">
          <p className="text-xs text-red-400 mb-1">Stop Loss</p>
          <p className="font-mono font-bold text-red-400 text-sm">
            ${signal.stop_loss.toFixed(2)}
          </p>
          <p className="text-xs text-red-300 mt-1">-{pnl.loss.toFixed(1)}%</p>
        </div>
        <div className="text-center p-3 bg-green-900/30 border border-green-800 rounded-lg">
          <p className="text-xs text-green-400 mb-1">Take Profit</p>
          <p className="font-mono font-bold text-green-400 text-sm">
            ${signal.take_profit.toFixed(2)}
          </p>
          <p className="text-xs text-green-300 mt-1">+{pnl.profit.toFixed(1)}%</p>
        </div>
      </div>

      {/* Metrics Row */}
      <div className="grid grid-cols-3 gap-3 mb-4 text-sm">
        <div className="flex items-center gap-1.5 text-gray-400">
          <ShieldCheckIcon className="w-4 h-4" />
          <div>
            <p className="text-xs text-gray-500">R:R</p>
            <p className="text-white font-bold">{signal.risk_reward_ratio.toFixed(1)}</p>
          </div>
        </div>
        <div className="flex items-center gap-1.5 text-gray-400">
          <ChartBarIcon className="w-4 h-4" />
          <div>
            <p className="text-xs text-gray-500">P(TP)</p>
            <p className="text-white font-bold">{Math.round(signal.prob_tp_first * 100)}%</p>
          </div>
        </div>
        <div className="flex items-center gap-1.5 text-gray-400">
          <BoltIcon className="w-4 h-4" />
          <div>
            <p className="text-xs text-gray-500">Vol</p>
            <p className="text-white font-bold uppercase text-xs">
              {signal.volatility_regime.substring(0, 3)}
            </p>
          </div>
        </div>
      </div>

      {/* Valid Until */}
      <div className="flex items-center gap-2 mb-4 p-2 bg-gray-800 rounded">
        <ClockIcon className={`w-4 h-4 ${isValid ? 'text-blue-400' : 'text-red-400'}`} />
        <div className="flex-1">
          <p className="text-xs text-gray-400">
            {isValid ? 'Valid until' : 'Expired at'}
          </p>
          <p className="text-sm text-white font-medium">
            {new Date(signal.valid_until).toLocaleString()}
          </p>
        </div>
        {!isValid && (
          <span className="text-xs px-2 py-1 bg-red-900/30 text-red-400 rounded">
            EXPIRED
          </span>
        )}
      </div>

      {/* Execute Trade Button */}
      {showExecuteButton && isValid && onExecuteTrade && (
        <button
          onClick={() => onExecuteTrade(signal)}
          className={`w-full py-3 rounded-lg font-semibold transition-colors ${
            signal.direction === 'long'
              ? 'bg-green-600 hover:bg-green-700 text-white'
              : 'bg-red-600 hover:bg-red-700 text-white'
          }`}
        >
          Execute {signal.direction === 'long' ? 'Buy' : 'Sell'} Order
        </button>
      )}
    </div>
  );
};

export default PredictionCard;