"use client";

import { Bar, BarChart, CartesianGrid, XAxis, YAxis } from "recharts";

import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import {
  ChartContainer,
  ChartLegend,
  ChartLegendContent,
  ChartTooltip,
  ChartTooltipContent,
  type ChartConfig,
} from "@/components/ui/chart";
import type { PublicGuide } from "@/lib/guides/queries";

const chartConfig = {
  overall: { label: "Overall · ดาเมจทั้งทีม", color: "var(--chart-1)" },
  personal: { label: "Personal · ดาเมจส่วนตัว", color: "var(--chart-2)" },
} satisfies ChartConfig;

function percentage(value: string | null) {
  if (!value?.trim()) return null;
  const number = Number(value);
  // Zero is displayed as an unavailable metric in the weapon cards.
  return Number.isFinite(number) && number !== 0 ? number : null;
}

export function WeaponChart({ rows }: { rows: PublicGuide["weaponGroups"][number]["rows"] }) {
  const data = rows.map((row, index) => ({
    name: `${index + 1}. ${row.weapon.name} R${row.refinement}`,
    imageUrl: row.weapon.imageUrl,
    overall: percentage(row.overallPercent),
    personal: percentage(row.personalPercent),
  }));
  const hasOverall = data.some((row) => row.overall !== null);
  const hasPersonal = data.some((row) => row.personal !== null);
  const singleMetric = !hasOverall || !hasPersonal;

  if (!hasOverall && !hasPersonal) return null;

  return (
    <Card className="min-w-0" size={singleMetric ? "sm" : "default"}>
      <CardHeader>
        <CardTitle>เปรียบเทียบดาเมจอาวุธ</CardTitle>
        <CardDescription>เปอร์เซ็นต์ดาเมจของอาวุธทั้งหมดใน Condition นี้</CardDescription>
      </CardHeader>
      <CardContent className="min-w-0">
          <ChartContainer
            config={chartConfig}
            className="min-w-0 aspect-auto w-full"
            style={{
              height: singleMetric ? 300 : 400,
            }}
            aria-label="กราฟเปรียบเทียบเปอร์เซ็นต์ดาเมจอาวุธ"
          >
            <BarChart accessibilityLayer data={data} margin={{ right: 16 }}>
              <CartesianGrid vertical={false} />
              <YAxis type="number" tickLine={false} axisLine={false} tickFormatter={(value) => `${value}%`} />
              <XAxis
                dataKey="name"
                type="category"
                height={60}
                tickLine={false}
                axisLine={false}
                interval={0}
                tick={({ x, y, payload, width }) => {
                  const weapon = data.find((row) => row.name === payload.value);
                  if (!weapon) return <g />;
                  const size = Math.max(8, Math.min(40, Number(width) / data.length - 4 || 32));
                  return (
                    <g transform={`translate(${x},${y})`}>
                      <title>{weapon.name}</title>
                      <image
                        href={weapon.imageUrl}
                        x={-size / 2}
                        y={4}
                        width={size}
                        height={size}
                        preserveAspectRatio="xMidYMid meet"
                        role="img"
                        aria-label={weapon.name}
                      />
                    </g>
                  );
                }}
              />
              <ChartTooltip content={
                <ChartTooltipContent formatter={(value, name) => (
                  <div className="flex flex-1 items-center justify-between gap-4">
                    <span className="text-muted-foreground">{chartConfig[name as keyof typeof chartConfig]?.label ?? name}</span>
                    <span className="font-mono font-medium">{value}%</span>
                  </div>
                )} />
              } />
              <ChartLegend content={<ChartLegendContent className="flex-wrap" />} />
              {hasPersonal ? <Bar dataKey="personal" fill="var(--color-personal)" radius={4} maxBarSize={32} /> : null}
              {hasOverall ? <Bar dataKey="overall" fill="var(--color-overall)" radius={4} maxBarSize={32} /> : null}
            </BarChart>
          </ChartContainer>
      </CardContent>
    </Card>
  );
}