import * as React from "react";

export interface BarChartData {
  label: string;
  value: number;
  maxValue?: number;
  color?: string;
  labelColor?: string;
  valuePrefix?: string;
  valueSuffix?: string;
}

interface CustomBarChartProps {
  data: BarChartData[];
  title?: string;
  height?: string;
  barHeight?: string;
  showAxisLabels?: boolean;
  className?: string;
  loading?: boolean;
}

export function CustomBarChart({
  data,
  title,
  height = "auto",
  barHeight = "h-6",
  showAxisLabels = true,
  className = "",
  loading = false
}: CustomBarChartProps) {
  // Calculate the maximum value across all data points for consistent scaling
  const globalMaxValue = Math.max(...data.map(item => item.maxValue || item.value));
  
  // Function to format numbers with Persian digits
  const formatNumber = (value: number): string => {
    const str = String(value);
    const map: Record<string, string> = {
      "0": "۰", "1": "۱", "2": "۲", "3": "۳", "4": "۴",
      "5": "۵", "6": "۶", "7": "۷", "8": "۸", "9": "۹"
    };
    return str.replace(/[0-9]/g, (d) => map[d] ?? d);
  };

  // Loading skeleton
  if (loading) {
    return (
      <div className={`space-y-6 ${className}`} style={{ height }}>
        {title && (
          <div className="h-7 bg-gray-600 rounded animate-pulse mb-4 w-1/2"></div>
        )}
        
        <div className="space-y-4">
          {Array.from({ length: 4 }).map((_, index) => (
            <div key={index} className="flex items-center gap-3">
              {/* Label skeleton */}
              <div className="h-4 bg-gray-600 rounded animate-pulse min-w-[160px]"></div>
              
              {/* Bar skeleton */}
              <div className="flex-1 bg-gray-700 rounded-full h-6">
                <div className="h-6 bg-gray-600 rounded-full animate-pulse" style={{ width: `${Math.random() * 60 + 20}%` }}></div>
              </div>
              
              {/* Value skeleton */}
              <div className="h-4 bg-gray-600 rounded animate-pulse min-w-[60px]"></div>
            </div>
          ))}
        </div>
      </div>
    );
  }

  return (
    <div className={`space-y-6 ${className}`} style={{ height }}>
      {title && (
        <h3 className="text-xl font-bold text-white font-persian text-right mb-4">
          {title}
        </h3>
      )}
      
      <div className="space-y-4">
        {data.map((item, index) => {
          const percentage = globalMaxValue > 0 ? (item.value / globalMaxValue) * 100 : 0;
          const displayValue = item.value.toFixed(1);
          
          return (
            <div key={index} className="flex items-center gap-3">
              {/* Label */}
              <span 
                className={`font-persian text-sm min-w-[160px] text-right ${
                  item.labelColor || 'text-white'
                }`}
              >
                {item.label}
              </span>
              
              {/* Bar Container */}
              <div className={`flex-1 flex items-center bg-gray-700 rounded-full relative overflow-hidden ${barHeight}`}>
                <div 
                  className={`${barHeight} rounded-full transition-all duration-700 ease-out relative ${
                    item.color || 'bg-emerald-400'
                  }`}
                  style={{ 
                    width: `${Math.min(percentage, 100)}%`
                  }}
                >
                  {/* Add a subtle gradient effect for better visual appeal */}
                  <div className="absolute inset-0 bg-gradient-to-r from-transparent to-white/10 rounded-full"></div>
                </div>
              </div>
              
              {/* Value Label */}
              <span className={`font-bold text-sm min-w-[60px] text-left ${
                item.color?.includes('emerald') ? 'text-emerald-400' : 
                item.color?.includes('blue') ? 'text-blue-400' :
                item.color?.includes('purple') ? 'text-purple-400' :
                item.color?.includes('red') ? 'text-red-400' :
                item.color?.includes('yellow') ? 'text-yellow-400' :
                'text-emerald-400'
              }`}>
                {item.valuePrefix || ''}{formatNumber(parseFloat(displayValue))}{item.valueSuffix || '%'}
              </span>
            </div>
          );
        })}
        
        {/* Axis Labels */}
        {showAxisLabels && globalMaxValue > 0 && (
          <div className="flex items-center gap-3 mt-6">
            <span className="min-w-[160px]"></span>
            <div className="flex-1 flex justify-between pt-2 border-t border-gray-700">
              <span className="text-gray-400 text-xs">{formatNumber(0)}%</span>
              <span className="text-gray-400 text-xs">{formatNumber(Math.round(globalMaxValue / 4))}%</span>
              <span className="text-gray-400 text-xs">{formatNumber(Math.round(globalMaxValue / 2))}%</span>
              <span className="text-gray-400 text-xs">{formatNumber(Math.round((globalMaxValue * 3) / 4))}%</span>
              <span className="text-gray-400 text-xs">{formatNumber(Math.round(globalMaxValue))}%</span>
            </div>
            <span className="min-w-[60px]"></span>
          </div>
        )}
      </div>
    </div>
  );
}