"use client";

import { useState } from "react";
import { Area, AreaChart, CartesianGrid, XAxis, YAxis } from "recharts";

import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";
import {
  type ChartConfig,
  ChartContainer,
  ChartTooltip,
  ChartTooltipContent,
} from "@/components/ui/chart";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
import { cn } from "@/lib/utils";

interface ChartCard2Props {
  title?: string;
  description?: string;
  className?: string;
}

const weekdayFormatter = new Intl.DateTimeFormat("fa-IR", {
  weekday: "short",
});

const monthFormatter = new Intl.DateTimeFormat("fa-IR", { month: "short" });

const numberFormatter = new Intl.NumberFormat("fa-IR", {
  maximumFractionDigits: 0,
});

const compactNumberFormatter = new Intl.NumberFormat("fa-IR", {
  notation: "compact",
  maximumFractionDigits: 1,
});

type ChartPoint = { day: string; value: number };

const chartData: Record<"7d" | "30d" | "90d", ChartPoint[]> = {
  "7d": [
    { day: weekdayFormatter.format(new Date(2025, 0, 6)), value: 186 },
    { day: weekdayFormatter.format(new Date(2025, 0, 7)), value: 205 },
    { day: weekdayFormatter.format(new Date(2025, 0, 8)), value: 237 },
    { day: weekdayFormatter.format(new Date(2025, 0, 9)), value: 223 },
    { day: weekdayFormatter.format(new Date(2025, 0, 10)), value: 249 },
    { day: weekdayFormatter.format(new Date(2025, 0, 11)), value: 214 },
    { day: weekdayFormatter.format(new Date(2025, 0, 12)), value: 231 },
  ],
  "30d": [
    { day: "هفته ۱", value: 1420 },
    { day: "هفته ۲", value: 1650 },
    { day: "هفته ۳", value: 1580 },
    { day: "هفته ۴", value: 1820 },
  ],
  "90d": [
    { day: monthFormatter.format(new Date(2025, 0, 1)), value: 4200 },
    { day: monthFormatter.format(new Date(2025, 1, 1)), value: 4800 },
    { day: monthFormatter.format(new Date(2025, 2, 1)), value: 5100 },
  ],
};

const periodTabs = [
  { value: "7d", label: "۷ روز" },
  { value: "30d", label: "۳۰ روز" },
  { value: "90d", label: "۹۰ روز" },
] as const;

const chartConfig = {
  value: {
    label: "بازدیدکنندگان",
    color: "var(--chart-1)",
  },
} satisfies ChartConfig;

const ChartCard2 = ({
  title = "ترافیک وب‌سایت",
  description = "بازدیدکنندگان یکتا در بازه زمانی",
  className,
}: ChartCard2Props) => {
  const [period, setPeriod] = useState<"7d" | "30d" | "90d">("7d");

  return (
    <Card
      dir="rtl"
      lang="fa"
      className={cn("w-full max-w-2xl text-start", className)}
    >
      <CardHeader className="flex flex-row items-center justify-between space-y-0">
        <div>
          <CardTitle>{title}</CardTitle>
          <CardDescription>{description}</CardDescription>
        </div>
        <Tabs
          value={period}
          onValueChange={(v) => setPeriod(v as "7d" | "30d" | "90d")}
        >
          <TabsList>
            {periodTabs.map((tab) => (
              <TabsTrigger key={tab.value} value={tab.value}>
                {tab.label}
              </TabsTrigger>
            ))}
          </TabsList>
        </Tabs>
      </CardHeader>
      <CardContent>
        <ChartContainer config={chartConfig} className="h-64 w-full">
          <AreaChart
            data={chartData[period]}
            margin={{ top: 10, right: 10, left: 0, bottom: 0 }}
          >
            <defs>
              <linearGradient id="chartGradient2" x1="0" y1="0" x2="0" y2="1">
                <stop
                  offset="0%"
                  stopColor="var(--color-value)"
                  stopOpacity={0.3}
                />
                <stop
                  offset="100%"
                  stopColor="var(--color-value)"
                  stopOpacity={0}
                />
              </linearGradient>
            </defs>
            <CartesianGrid strokeDasharray="3 3" vertical={false} />
            <XAxis
              dataKey="day"
              axisLine={false}
              tickLine={false}
              tickMargin={8}
              fontSize={12}
            />
            <YAxis
              axisLine={false}
              tickLine={false}
              tickMargin={8}
              fontSize={10}
              width={40}
              tickFormatter={(value) =>
                compactNumberFormatter.format(Number(value))
              }
            />
            <ChartTooltip
              content={
                <ChartTooltipContent
                  formatter={(value) =>
                    numberFormatter.format(Number(value))
                  }
                />
              }
              cursor={{ stroke: "var(--border)", strokeDasharray: "4 4" }}
            />
            <Area
              type="monotone"
              dataKey="value"
              stroke="var(--color-value)"
              strokeWidth={2}
              fill="url(#chartGradient2)"
            />
          </AreaChart>
        </ChartContainer>
      </CardContent>
    </Card>
  );
};

export { ChartCard2 };