'use client';

import React, { useState } from 'react';
import { Button } from '@/registry/default/ui/button';
import { Card, CardContent, CardHeader, CardTitle, CardToolbar } from '@/registry/default/ui/card';
import { ChartConfig, ChartContainer, ChartTooltip } from '@/registry/default/ui/chart';
import { ToggleGroup, ToggleGroupItem } from '@/registry/default/ui/toggle-group';
import { ArrowDownRight, ArrowUpRight, Settings } from 'lucide-react';
import { Line, LineChart, XAxis, YAxis } from 'recharts';
import { cn } from '@/lib/utils';

// NFT Collection analytics data for different time periods
const nftData = {
  week: [
    { period: 'Mon', value: 2.1 },
    { period: 'Tue', value: 4.2 },
    { period: 'Wed', value: 2.8 },
    { period: 'Thu', value: 5.1 },
    { period: 'Fri', value: 3.3 },
    { period: 'Sat', value: 6.2 },
    { period: 'Sun', value: 4.9 },
  ],
  month: [
    { period: 'Jan', value: 1.2 },
    { period: 'Feb', value: 2.8 },
    { period: 'Mar', value: 1.9 },
    { period: 'Apr', value: 3.4 },
    { period: 'May', value: 2.7 },
    { period: 'Jun', value: 4.1 },
    { period: 'Jul', value: 3.2 },
    { period: 'Aug', value: 5.4 },
    { period: 'Sep', value: 4.8 },
    { period: 'Oct', value: 6.1 },
    { period: 'Nov', value: 5.2 },
    { period: 'Dec', value: 6.8 },
  ],
  max: [
    { period: '2018', value: 0.1 },
    { period: '2019', value: 0.4 },
    { period: '2020', value: 0.7 },
    { period: '2021', value: 2.1 },
    { period: '2022', value: 3.2 },
    { period: '2023', value: 4.2 },
    { period: '2024', value: 6.4 },
  ],
};

type PeriodKey = keyof typeof nftData;

const PERIODS = {
  week: { key: 'week', label: 'Week' },
  month: { key: 'month', label: 'Month' },
  max: { key: 'max', label: 'Max' },
} as const;

// Chart configuration with emerald theme
const chartConfig = {
  value: {
    label: 'NFT Floor Price',
    color: 'var(--color-emerald-500)',
  },
} satisfies ChartConfig;

// Custom Tooltip
interface TooltipProps {
  active?: boolean;
  payload?: Array<{
    dataKey: string;
    value: number;
    color: string;
  }>;
  label?: string;
}

const CustomTooltip = ({ active, payload, label }: TooltipProps) => {
  if (active && payload && payload.length) {
    return (
      <div className="rounded-lg border border-slate-700 bg-slate-800 p-3 shadow-md shadow-slate-100/5 min-w-[120px]">
        <div className="text-xs font-medium text-white/60 tracking-wide mb-2">{label}</div>
        <div className="text-sm font-semibold text-white">{payload[0].value} USD</div>
      </div>
    );
  }
  return null;
};

export default function LineChart7() {
  const [selectedPeriod, setSelectedPeriod] = useState<PeriodKey>('max');

  const currentData = nftData[selectedPeriod];
  const currentValue = currentData[currentData.length - 1]?.value || 0;
  const previousValue = currentData[currentData.length - 2]?.value || 0;
  const growth = previousValue > 0 ? ((currentValue - previousValue) / previousValue) * 100 : 0;

  return (
    <div className="min-h-screen flex items-center justify-center p-6 lg:p-8">
      <Card className="w-full rounded-3xl lg:max-w-lg bg-gradient-to-br from-slate-900 via-slate-900 to-emerald-950/90 border-slate-700 text-white shadow-2xl shadow-emerald-500/10">
        <CardHeader className="border-0 min-h-auto pt-6 pb-6">
          <CardTitle className="text-lg font-semibold">Sales Analytics</CardTitle>
          <CardToolbar>
            <Button variant="outline" size="icon-sm">
              <Settings className="size-4 text-slate-200" />
            </Button>
          </CardToolbar>
        </CardHeader>

        <CardContent className="px-6 pb-6 space-y-6">
          {/* Toggle Period Selector */}
          <ToggleGroup
            type="single"
            value={selectedPeriod}
            onValueChange={(value) => value && setSelectedPeriod(value as PeriodKey)}
            className="w-full rounded-2xl border border-slate-700/80 p-1.5"
          >
            {Object.values(PERIODS).map((period) => (
              <ToggleGroupItem
                key={period.key}
                value={period.key}
                className="h-10 shadow-none! rounded-xl flex-1 border-0 data-[state=on]:bg-slate-800 data-[state=on]:text-emerald-400 text-zinc-400 hover:bg-transparent hover:text-emerald-300"
              >
                {period.label}
              </ToggleGroupItem>
            ))}
          </ToggleGroup>

          {/* Chart Container */}
          <div className="relative">
            <ChartContainer
              config={chartConfig}
              className="h-[300px] w-full [&_.recharts-curve.recharts-tooltip-cursor]:stroke-initial"
            >
              <LineChart
                data={currentData}
                margin={{
                  top: 10,
                  right: 10,
                  left: 10,
                  bottom: 10,
                }}
              >
                <XAxis
                  dataKey="period"
                  axisLine={false}
                  tickLine={false}
                  tick={{ fontSize: 12, strokeWidth: 0.5, stroke: 'rgb(255, 255, 255)', opacity: 0.4 }}
                  tickMargin={20}
                  interval="preserveStartEnd"
                />

                <YAxis hide domain={['dataMin - 0.5', 'dataMax + 0.5']} />

                <ChartTooltip
                  content={<CustomTooltip />}
                  cursor={{ strokeDasharray: '2 2', stroke: 'rgb(16 185 129)', strokeOpacity: 0.6 }}
                />

                {/* Background pattern for chart area only */}
                <defs>
                  <pattern id="dotGridDark" x="0" y="0" width="36" height="36" patternUnits="userSpaceOnUse">
                    <circle cx="15" cy="15" r="1.5" fill="#ffffff" fillOpacity="0.1" />
                  </pattern>
                </defs>

                <rect
                  x="10px"
                  y="-30px"
                  width="100%"
                  height="100%"
                  fill="url(#dotGridDark)"
                  style={{ pointerEvents: 'none' }}
                />

                {/* Main line with sharp angles */}
                <Line
                  type="linear"
                  dataKey="value"
                  stroke="rgb(16 185 129)"
                  strokeWidth={3}
                  dot={{
                    r: 4,
                    fill: 'rgb(16 185 129)',
                    stroke: 'rgb(16 185 129)',
                    strokeWidth: 2,
                    filter: 'drop-shadow(0 0 6px rgb(16 185 129))',
                  }}
                  activeDot={{
                    r: 6,
                    stroke: 'rgb(16 185 129)',
                    strokeWidth: 3,
                    fill: 'rgb(16 185 129)',
                    filter: 'drop-shadow(0 0 8px rgb(16 185 129))',
                  }}
                />

                {/* Endpoint dot */}
                <Line
                  type="linear"
                  dataKey="value"
                  stroke="transparent"
                  strokeWidth={0}
                  dot={false}
                  activeDot={{
                    r: 7,
                    stroke: 'rgb(16 185 129)',
                    strokeWidth: 4,
                    fill: 'rgb(16 185 129)',
                    filter: 'drop-shadow(0 0 10px rgb(16 185 129))',
                  }}
                />
              </LineChart>
            </ChartContainer>
          </div>

          {/* Statistics */}
          <div className="flex items-center gap-2.5 justify-between">
            {/* Floor Price */}
            <div className="flex flex-col gap-0.5">
              <div className="text-sm text-slate-300">Floor Price (USD)</div>
              <div className="flex items-start gap-2">
                <span className="text-4xl font-bold text-white">{currentValue.toFixed(1)}</span>
                <span className="text-sm text-emerald-400 font-medium pt-0.75">+{(currentValue - 2.5).toFixed(1)}</span>
              </div>
            </div>

            {/* Growth */}
            <div className={cn('flex items-center gap-1.5', growth > 0 ? 'text-emerald-400' : 'text-destructive')}>
              {growth > 0 ? <ArrowUpRight className="size-6" /> : <ArrowDownRight className="size-6" />}
              <span className="text-2xl font-semibold">{(growth * 2.1).toFixed(1)}%</span>
            </div>
          </div>
        </CardContent>
      </Card>
    </div>
  );
}