"use client";

import { SatisfactionPoint } from "@/lib/types";
import {
  LineChart,
  Line,
  XAxis,
  YAxis,
  CartesianGrid,
  Tooltip,
  ResponsiveContainer,
} from "recharts";

interface Props {
  data: SatisfactionPoint[];
}

export default function SatisfactionChart({ data }: Props) {
  if (!data || data.length === 0) {
    return (
      <div className="flex items-center justify-center h-48 text-slate-600 text-xs font-mono">
        No satisfaction data yet
      </div>
    );
  }

  return (
    <div className="relative">
      {/* Legend */}
      <div className="flex gap-4 justify-end mb-3 text-[10px] font-mono">
        <div className="flex items-center gap-1.5">
          <span className="size-1.5 rounded-full bg-[#B7A6FB] shadow-[0_0_5px_#B7A6FB]" />
          <span className="text-slate-400">Agent A</span>
        </div>
        <div className="flex items-center gap-1.5">
          <span className="size-1.5 rounded-full bg-cyan-400 shadow-[0_0_5px_#22d3ee]" />
          <span className="text-slate-400">Agent B</span>
        </div>
      </div>

      <ResponsiveContainer width="100%" height={200}>
        <LineChart data={data} margin={{ top: 4, right: 8, left: -20, bottom: 0 }}>
          <CartesianGrid strokeDasharray="3 3" stroke="rgba(255,255,255,0.04)" />
          <XAxis
            dataKey="round"
            tick={{ fill: "#475569", fontSize: 10, fontFamily: "JetBrains Mono" }}
            axisLine={{ stroke: "rgba(255,255,255,0.05)" }}
            tickLine={false}
          />
          <YAxis
            domain={[0, 100]}
            tick={{ fill: "#475569", fontSize: 10, fontFamily: "JetBrains Mono" }}
            axisLine={false}
            tickLine={false}
            tickFormatter={(v) => `${v}%`}
          />
          <Tooltip
            contentStyle={{
              background: "rgba(7, 3, 18, 0.9)",
              border: "1px solid rgba(183, 166, 251, 0.2)",
              borderRadius: 8,
              backdropFilter: "blur(12px)",
            }}
            labelStyle={{ color: "#94a3b8", fontFamily: "JetBrains Mono", fontSize: 10 }}
            itemStyle={{ color: "#e2e8f0", fontFamily: "JetBrains Mono", fontSize: 11 }}
            formatter={(value: number | undefined) => [`${(value ?? 0).toFixed(0)}%`]}
          />
          <Line
            type="monotone"
            dataKey="score_a"
            stroke="#B7A6FB"
            strokeWidth={1.5}
            dot={{ fill: "#000", stroke: "#B7A6FB", strokeWidth: 1, r: 2 }}
            activeDot={{ r: 4, fill: "#B7A6FB", stroke: "white", strokeWidth: 1 }}
            name="Agent A"
          />
          <Line
            type="monotone"
            dataKey="score_b"
            stroke="#22d3ee"
            strokeWidth={1.5}
            dot={{ fill: "#000", stroke: "#22d3ee", strokeWidth: 1, r: 2 }}
            activeDot={{ r: 4, fill: "#22d3ee", stroke: "white", strokeWidth: 1 }}
            name="Agent B"
          />
        </LineChart>
      </ResponsiveContainer>
    </div>
  );
}


interface Props {
  data: SatisfactionPoint[];
}