'use client';

import {
  calculateBigFiveResults,
  calculateIpipNeoResults,
  ipipNeoItemsByVersion,
} from '../../test/private/BigFiveCalculator';
import { ipipNeoFacets } from '@/questionairies/bigfive/neo-data';

interface BigFiveResultProps {
  answers: string[];
  version?: 50 | 120 | 300;
}

interface ScoreResult {
  score: number;
  average: number;
  itemCount?: number;
}

const domainLabels = {
  neuroticism: {
    name: '神经质',
    desc: '情绪敏感、压力反应以及体验焦虑、烦躁等负面情绪的倾向。',
  },
  extraversion: {
    name: '外向性',
    desc: '社交投入、自信表达、活跃度和积极情绪。',
  },
  openness: {
    name: '开放性',
    desc: '想象力、审美、求知、尝新和价值观开放程度。',
  },
  agreeableness: {
    name: '宜人性',
    desc: '信任、真诚、合作、利他、谦逊和同情倾向。',
  },
  conscientiousness: {
    name: '尽责性',
    desc: '自我效能、条理、责任、自律、成就追求和谨慎。',
  },
};

const shortLabels = {
  extraversion: domainLabels.extraversion,
  agreeableness: domainLabels.agreeableness,
  conscientiousness: domainLabels.conscientiousness,
  emotionalStability: {
    name: '情绪稳定性',
    desc: '情绪平稳、压力耐受和较少焦虑烦躁。',
  },
  openness: domainLabels.openness,
};

function level(average: number) {
  if (average >= 3.8) return '较高';
  if (average <= 2.4) return '较低';
  return '中等';
}

function barWidth(average: number) {
  return `${Math.max(0, Math.min(100, ((average - 1) / 4) * 100))}%`;
}

function ScoreCard({
  name,
  desc,
  result,
  maxScore,
}: {
  name: string;
  desc: string;
  result: ScoreResult;
  maxScore: number;
}) {
  return (
    <div className="border rounded-lg p-5 bg-white shadow-sm">
      <div className="flex items-start justify-between gap-4 mb-3">
        <div>
          <h4 className="font-semibold">{name}</h4>
          <p className="text-sm text-muted-foreground mt-1">{desc}</p>
        </div>
        <div className="text-right shrink-0">
          <div className="text-2xl font-semibold text-indigo-600">
            {result.score}
          </div>
          <div className="text-xs text-muted-foreground">/ {maxScore}</div>
        </div>
      </div>
      <div className="h-2 rounded-full bg-gray-100 overflow-hidden">
        <div
          className="h-full rounded-full bg-indigo-500"
          style={{ width: barWidth(result.average) }}
        />
      </div>
      <div className="mt-3 text-sm">
        倾向：<span className="font-medium">{level(result.average)}</span>
        <span className="text-muted-foreground ml-2">
          平均 {result.average.toFixed(2)} / 5
        </span>
      </div>
    </div>
  );
}

export function BigFiveResult({ answers, version = 50 }: BigFiveResultProps) {
  if (version === 50) {
    const results = calculateBigFiveResults(answers);

    return (
      <div className="mt-6 space-y-6">
        <div className="bg-white border rounded-lg p-6 shadow-sm">
          <h3 className="text-lg font-semibold mb-2">五大人格结果</h3>
          <p className="text-sm text-muted-foreground">
            每个维度满分50分。分数表示相对倾向，没有绝对好坏。
          </p>
        </div>
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          {Object.entries(shortLabels).map(([key, info]) => (
            <ScoreCard
              key={key}
              name={info.name}
              desc={info.desc}
              result={results[key] as ScoreResult}
              maxScore={50}
            />
          ))}
        </div>
      </div>
    );
  }

  const items = ipipNeoItemsByVersion[version];
  const results = calculateIpipNeoResults(answers, [...items]);
  const domainItemCount = version === 120 ? 24 : 60;
  const facetItemCount = version === 120 ? 4 : 10;

  return (
    <div className="mt-6 space-y-8">
      <div className="bg-white border rounded-lg p-6 shadow-sm">
        <h3 className="text-lg font-semibold mb-2">
          IPIP-NEO {version}题结果
        </h3>
        <p className="text-sm text-muted-foreground">
          先看五大维度了解整体轮廓，再查看30个面向理解具体差异。分数代表相对倾向，没有绝对好坏。
        </p>
      </div>

      <section>
        <h3 className="text-lg font-semibold mb-4">五大维度</h3>
        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
          {Object.entries(domainLabels).map(([key, info]) => (
            <ScoreCard
              key={key}
              name={info.name}
              desc={info.desc}
              result={results.domains[key] as ScoreResult}
              maxScore={domainItemCount * 5}
            />
          ))}
        </div>
      </section>

      <section>
        <h3 className="text-lg font-semibold mb-4">30个细分面向</h3>
        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3">
          {Object.entries(ipipNeoFacets).map(([key, facet]) => {
            const result = results.facets[key] as ScoreResult;
            return (
              <div key={key} className="border rounded-lg bg-white p-4">
                <div className="flex items-center justify-between gap-3">
                  <h4 className="font-medium">{facet.name}</h4>
                  <span className="text-sm font-semibold text-indigo-600">
                    {result.score} / {facetItemCount * 5}
                  </span>
                </div>
                <div className="mt-3 h-1.5 rounded-full bg-gray-100 overflow-hidden">
                  <div
                    className="h-full rounded-full bg-emerald-500"
                    style={{ width: barWidth(result.average) }}
                  />
                </div>
                <div className="mt-2 text-xs text-muted-foreground">
                  {level(result.average)} · 平均 {result.average.toFixed(2)} / 5
                </div>
              </div>
            );
          })}
        </div>
      </section>

      <div className="bg-gray-50 border rounded-lg p-4 text-sm text-gray-700">
        建议结合维度和面向一起阅读：同一大维度下的六个面向可能高低不同，这通常比单一总分更能描述个人风格。
      </div>
    </div>
  );
}