'use client'import React from 'react';import { Users } from 'lucide-react';import { motion } from 'motion/react';import { clsx, type ClassValue } from "clsx";import { twMerge } from "tailwind-merge";import { ResponsiveContainer, BarChart, Bar, Cell, Tooltip, XAxis } from 'recharts';function cn(...inputs: ClassValue[]) {   return twMerge(clsx(inputs));}interface ClassAverageData {   grade: string;   count: number;   [key: string]: any;}interface ClassAverageCardProps {   className?: string;   title?: string;   average?: string;   trend?: string;   subtitle?: string;   data?: ClassAverageData[];}const DEFAULT_DATA: ClassAverageData[] = [   { grade: 'A', count: 12 },   { grade: 'B', count: 18 },   { grade: 'C', count: 8 },   { grade: 'D', count: 4 },   { grade: 'F', count: 2 },];const DEFAULT_TITLE = "Class Avg";const DEFAULT_AVERAGE = "88%";const DEFAULT_TREND = "+4%";const DEFAULT_SUBTITLE = "Grade Distribution";export const ClassAverageCard: React.FC<ClassAverageCardProps> = ({   className = "",   title = DEFAULT_TITLE,   average = DEFAULT_AVERAGE,   trend = DEFAULT_TREND,   subtitle = DEFAULT_SUBTITLE,   data = DEFAULT_DATA,}) => {   return (      <motion.div         initial={{ opacity: 0, y: 20 }}         animate={{ opacity: 1, y: 0 }}         transition={{ duration: 0.5, delay: 0.3 }}         className={cn(            "relative overflow-hidden rounded-2xl border border-border bg-card text-card-foreground shadow-sm transition-all hover:border-primary/50 hover:shadow-md flex flex-col h-full",            className         )}      >         <div className="p-5 flex flex-col h-full relative z-10">            <div className="mb-4 flex items-start justify-between">               <div>                  <h3 className="font-bold text-lg text-foreground">                     {title}                  </h3>                  <div className="flex items-center gap-2 mt-1">                     <span className="text-2xl font-bold text-foreground">{average}</span>                     <span className="text-xs font-medium text-emerald-500 bg-emerald-500/10 px-1.5 py-0.5 rounded-full">                        {trend}                     </span>                  </div>                  <p className="text-sm text-muted-foreground mt-1">                     {subtitle}                  </p>               </div>               <div className="rounded-xl bg-blue-500/10 p-2.5 text-blue-500 dark:text-blue-400 flex items-center justify-center ring-1 ring-blue-100 dark:ring-blue-800">                  <Users className="h-5 w-5" />               </div>            </div>            <div className="flex-1 w-full min-h-[100px]">               <ResponsiveContainer width="100%" height="100%">                  <BarChart data={data}>                     <XAxis                        dataKey="grade"                        axisLine={false}                        tickLine={false}                        tick={{ fontSize: 10, fill: '#71717a' }}                     />                     <Tooltip                        cursor={{ fill: 'transparent' }}                        content={({ active, payload }) => {                           if (active && payload && payload.length) {                              return (                                 <div className="rounded-lg border border-zinc-200 dark:border-zinc-700 bg-white dark:bg-zinc-800 p-2 shadow-sm text-xs">                                    <span className="font-bold">Grade {payload[0].payload.grade}:</span> {payload[0].value} students                                 </div>                              );                           }                           return null;                        }}                     />                     <Bar dataKey="count" radius={[4, 4, 0, 0]}>                        {data.map((entry, index) => (                           <Cell key={`cell-${index}`} fill={index === 1 ? '#3b82f6' : '#e4e4e7'} />                        ))}                     </Bar>                  </BarChart>               </ResponsiveContainer>            </div>            <div className="absolute -bottom-4 -right-4 z-0 opacity-5 pointer-events-none">               <Users className="w-32 h-32 text-blue-500" />            </div>         </div>      </motion.div>   );};