"use client";

import { useId } from "react";
import {
  Area,
  AreaChart,
  CartesianGrid,
  Line,
  LineChart,
  ResponsiveContainer,
  Tooltip,
  XAxis,
  YAxis,
} from "recharts";
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";

interface LineChartData {
  date: string;
  value: number;
  [key: string]: string | number;
}

interface LineChartProps {
  data: LineChartData[];
  title?: string;
  dataKey?: string;
  color?: string;
  gradient?: boolean;
  height?: number;
  className?: string;
}

interface TooltipProps {
  active?: boolean;
  payload?: Array<{ value: number; name?: string }>;
  label?: string;
}

const CustomTooltip = ({ active, payload, label }: TooltipProps) => {
  if (active && payload && payload.length) {
    return (
      <div className="rounded-lg border bg-background p-3 shadow-md">
        <p className="text-sm font-medium">{label}</p>
        <p className="text-sm text-muted-foreground">
          <span className="font-medium text-foreground">
            {payload[0].value}
          </span>{" "}
          sessions
        </p>
      </div>
    );
  }
  return null;
};

export default function ModernLineChart({
  data,
  title,
  dataKey = "value",
  color = "hsl(var(--primary))",
  gradient = true,
  height = 300,
  className,
}: LineChartProps) {
  const gradientId = useId();
  const ChartComponent = gradient ? AreaChart : LineChart;

  return (
    <Card className={className}>
      {title && (
        <CardHeader>
          <CardTitle className="text-lg font-semibold">{title}</CardTitle>
        </CardHeader>
      )}
      <CardContent>
        <ResponsiveContainer width="100%" height={height}>
          <ChartComponent
            data={data}
            margin={{ top: 5, right: 30, left: 20, bottom: 5 }}
          >
            <defs>
              {gradient && (
                <linearGradient id={gradientId} x1="0" y1="0" x2="0" y2="1">
                  <stop offset="5%" stopColor={color} stopOpacity={0.3} />
                  <stop offset="95%" stopColor={color} stopOpacity={0.05} />
                </linearGradient>
              )}
            </defs>
            <CartesianGrid
              strokeDasharray="3 3"
              stroke="hsl(var(--border))"
              strokeOpacity={0.3}
            />
            <XAxis
              dataKey="date"
              stroke="hsl(var(--muted-foreground))"
              fontSize={12}
              tickLine={false}
              axisLine={false}
            />
            <YAxis
              stroke="hsl(var(--muted-foreground))"
              fontSize={12}
              tickLine={false}
              axisLine={false}
            />
            <Tooltip content={<CustomTooltip />} />

            {gradient ? (
              <Area
                type="monotone"
                dataKey={dataKey}
                stroke={color}
                strokeWidth={2}
                fill={`url(#${gradientId})`}
                dot={{ fill: color, strokeWidth: 2, r: 4 }}
                activeDot={{ r: 6, stroke: color, strokeWidth: 2 }}
              />
            ) : (
              <Line
                type="monotone"
                dataKey={dataKey}
                stroke={color}
                strokeWidth={2}
                dot={{ fill: color, strokeWidth: 2, r: 4 }}
                activeDot={{ r: 6, stroke: color, strokeWidth: 2 }}
              />
            )}
          </ChartComponent>
        </ResponsiveContainer>
      </CardContent>
    </Card>
  );
}