"use client";

import { ClipboardCheck } from "lucide-react";
import type { BrainAnswerCorrectionOutput } from "@/lib/api/types";
import type { StudyCardMeta } from "./types";

export function AnswerCorrectionCard({
  data,
  topic,
  meta,
}: {
  data: BrainAnswerCorrectionOutput;
  topic: string;
  meta?: StudyCardMeta;
}) {
  const isSourceMismatch = data.source_truth.toLowerCase().includes("not found");

  return (
    <article className="animate-msg-assistant w-full rounded-xl border border-white/[0.06] bg-[#080809] p-5">
      <div className="mb-3 flex items-center gap-2.5">
        <ClipboardCheck className="size-4 shrink-0 text-emerald-400/70" />
        <div>
          <span className="text-[10px] font-medium uppercase tracking-[0.08em] text-white/22">Answer Correction</span>
          <p className="text-[15px] font-semibold tracking-[-0.01em] text-white/95">{topic}</p>
        </div>
      </div>

      {/* Score + rubric */}
      <div className="mb-4 rounded-lg border border-white/[0.06] bg-white/[0.02] px-3 py-2.5">
        <p className="text-[13px] font-semibold text-white/80">{data.score}</p>
        <p className="mt-0.5 text-[11px] text-white/35">{data.mark_scheme_assumption}</p>
      </div>

      {/* What you wrote correctly */}
      {data.what_correct.length > 0 && (
        <Section title="What you wrote correctly" items={data.what_correct} variant="default" />
      )}

      {/* Marks lost */}
      <Section
        title="Marks lost"
        items={data.marks_lost}
        variant={isSourceMismatch ? "caution" : "default"}
      />

      {/* Missing keywords */}
      {data.missing_keywords.length > 0 && (
        <Section title="Missing keywords" items={data.missing_keywords} variant="keywords" />
      )}

      {/* Corrected board-answer version */}
      <div className="mt-3">
        <p className="mb-1.5 text-[10px] font-medium uppercase tracking-[0.08em] text-white/22">Corrected board-answer version</p>
        <div className="rounded-lg border border-emerald-500/10 bg-emerald-500/[0.03] px-3 py-2.5">
          <p className="text-[13px] leading-[1.7] text-white/75 whitespace-pre-wrap">{data.corrected_board_answer}</p>
        </div>
      </div>

      {/* How to improve */}
      {data.how_to_improve.length > 0 && (
        <Section title="How to improve next time" items={data.how_to_improve} variant="action" />
      )}

      {/* Quick retry task */}
      {data.quick_retry_task && (
        <div className="mt-3 rounded-lg border border-white/[0.1] bg-white/[0.04] px-3 py-2.5">
          <p className="mb-1 text-[10px] font-medium uppercase tracking-[0.08em] text-white/45">Quick retry task</p>
          <p className="text-[13px] leading-[1.6] text-white/70">{data.quick_retry_task}</p>
        </div>
      )}

      {/* Source truth */}
      <p className="mt-3 text-[11px] text-white/30">{data.source_truth}</p>

      {/* Source evidence */}
      {data.source_evidence.length > 0 && (
        <div className="mt-2 rounded-lg border border-white/[0.04] bg-white/[0.01] px-3 py-2">
          <p className="mb-1 text-[10px] font-medium uppercase tracking-[0.08em] text-white/20">Source evidence</p>
          {data.source_evidence.map((evidence, i) => (
            <p key={i} className="text-[11px] leading-[1.5] text-white/35">{evidence}</p>
          ))}
        </div>
      )}

      {meta?.evidenceLabel ? (
        <p className="mt-2 text-[10px] text-white/25">{meta.evidenceLabel}</p>
      ) : null}
    </article>
  );
}

function Section({
  title,
  items,
  variant = "default",
}: {
  title: string;
  items: string[];
  variant?: "default" | "caution" | "action" | "keywords";
}) {
  const variantStyles = {
    default: "border-white/[0.06] bg-white/[0.02]",
    caution: "border-amber-500/10 bg-amber-500/[0.03]",
    action: "border-white/[0.1] bg-white/[0.04]",
    keywords: "border-blue-500/10 bg-blue-500/[0.03]",
  };
  const dotStyles = {
    default: "bg-white/30",
    caution: "bg-amber-400/50",
    action: "bg-white/45",
    keywords: "bg-blue-400/50",
  };

  return (
    <div className="mt-3">
      <p className="mb-1.5 text-[10px] font-medium uppercase tracking-[0.08em] text-white/22">{title}</p>
      <div className={`rounded-lg border px-3 py-2.5 ${variantStyles[variant]}`}>
        <ul className="space-y-1.5">
          {items.map((item, i) => (
            <li key={i} className="flex items-start gap-2">
              <span className={`mt-1.5 size-1.5 shrink-0 rounded-full ${dotStyles[variant]}`} />
              <span className="text-[13px] leading-[1.6] text-white/70">{item}</span>
            </li>
          ))}
        </ul>
      </div>
    </div>
  );
}