import React from 'react';
import { cn } from '@/lib/utils';
import { TrendingUp, TrendingDown, Minus } from 'lucide-react';

/**
 * DashboardKPICard - Versão de Produção
 * Componente de alta fidelidade visual para exibição de KPIs.
 */
export const DashboardKPICard = ({ 
  label, 
  value, 
  subtitle, 
  trend, 
  trendDirection = 'stable', 
  icon: Icon, 
  color = 'blue',
  className
}) => {
  
  // Mapeamento de cores para bordas e backgrounds de ícones
  const colorStyles = {
    blue: {
      border: 'border-l-[#3b82f6]',
      iconBg: 'bg-gradient-to-br from-[#3b82f6] to-[#1d4ed8]',
      iconShadow: 'shadow-[#3b82f6]/20'
    },
    green: {
      border: 'border-l-[#10b981]',
      iconBg: 'bg-gradient-to-br from-[#10b981] to-[#059669]',
      iconShadow: 'shadow-[#10b981]/20'
    },
    orange: {
      border: 'border-l-[#f59e0b]',
      iconBg: 'bg-gradient-to-br from-[#f59e0b] to-[#d97706]',
      iconShadow: 'shadow-[#f59e0b]/20'
    },
    red: {
      border: 'border-l-[#ef4444]',
      iconBg: 'bg-gradient-to-br from-[#ef4444] to-[#b91c1c]',
      iconShadow: 'shadow-[#ef4444]/20'
    }
  };

  const style = colorStyles[color] || colorStyles.blue;

  // Estilos para a badge de tendência
  const trendStyles = {
    up: {
      text: 'text-[#10b981]',
      bg: 'bg-[#10b981]/10',
      icon: <TrendingUp size={12} />
    },
    down: {
      text: 'text-[#ef4444]',
      bg: 'bg-[#ef4444]/10',
      icon: <TrendingDown size={12} />
    },
    stable: {
      text: 'text-slate-500',
      bg: 'bg-slate-500/10',
      icon: <Minus size={12} />
    }
  };

  const currentTrend = trendStyles[trendDirection] || trendStyles.stable;

  return (
    <div className={cn(
      "relative bg-[#1c1c1c] rounded-2xl p-6 border-l-4 shadow-xl transition-all hover:translate-y-[-2px] hover:shadow-2xl",
      style.border,
      className
    )}>
      {/* Header Area */}
      <div className="flex items-center justify-between mb-6">
        <div className="flex items-center gap-3">
          {/* Icon Container */}
          <div className={cn(
            "w-12 h-12 rounded-xl flex items-center justify-center shadow-lg",
            style.iconBg,
            style.iconShadow
          )}>
            {Icon && <Icon size={24} className="text-white" />}
          </div>
          
          {/* Label */}
          <span className="text-[15px] font-bold text-white tracking-tight uppercase">
            {label}
          </span>
        </div>

        {/* Trend Badge */}
        {trend && (
          <div className={cn(
            "flex items-center gap-1.5 px-2.5 py-1 rounded-full text-[11px] font-black tracking-tight",
            currentTrend.bg,
            currentTrend.text
          )}>
            {currentTrend.icon}
            {trend}
          </div>
        )}
      </div>

      {/* Value Area */}
      <div className="space-y-1">
        <h3 className="text-[38px] font-black text-white leading-none tracking-tight">
          {value}
        </h3>
        
        {subtitle && (
          <p className="text-[11px] font-bold text-slate-500 leading-tight uppercase tracking-wide max-w-[200px]">
            {subtitle}
          </p>
        )}
      </div>

      {/* Glassy Overlay effect (optional for premium feel) */}
      <div className="absolute top-0 right-0 w-32 h-32 bg-white/5 blur-3xl rounded-full -mr-16 -mt-16 pointer-events-none" />
    </div>
  );
};
