import { useEffect, useRef, useState } from "react";

const DIMS = [
  { name: "钩子设计", score: 16, max: 20, hue: 145, desc: "吸引力·悬念·黄金三秒", isPerfect: false, isLow: false },
  { name: "剧情结构", score: 16, max: 20, hue: 165, desc: "起承转合·节奏·冲突", isPerfect: false, isLow: false },
  { name: "角色塑造", score: 15, max: 15, hue: 155, desc: "立体度·动机·弧光", isPerfect: true, isLow: false },
  { name: "逻辑严密", score: 12, max: 15, hue: 175, desc: "自洽·伏笔·因果链", isPerfect: false, isLow: false },
  { name: "场景构建", score: 10, max: 15, hue: 185, desc: "空间·视听·画面感", isPerfect: false, isLow: true },
  { name: "内容深度", score: 8, max: 15, hue: 195, desc: "主题·情感·思想内核", isPerfect: false, isLow: true },
];

const HIGHLIGHTS = [
  { dim: "角色塑造", score: "15/15 ★", text: "满分表现！人物立体度与弧光设计均达高水准" },
  { dim: "钩子设计", score: "16/20", text: "开篇悬念精准，黄金三秒有效抓住注意力" },
  { dim: "剧情结构", score: "16/20", text: "起承转合清晰，节奏把控得当，冲突自然递进" },
];

const WEAKNESSES = [
  { dim: "内容深度", score: "8/15", text: "主题偏表层，情感共鸣与思想内核挖掘不足" },
  { dim: "场景构建", score: "10/15", text: "空间描写模糊，视听语言薄弱，画面感欠缺" },
  { dim: "逻辑严密", score: "12/15", text: "世界观细节不足，部分伏笔缺乏回收" },
];

const OPTIMIZATIONS = [
  { dim: "场景构建 → 提升", priority: "高优先", priorityClass: "badge-red", text: "增加具体空间描写与视听语言，强化沉浸感" },
  { dim: "内容深度 → 深挖", priority: "高优先", priorityClass: "badge-red", text: "围绕核心冲突深化人物选择与情感层次" },
  { dim: "逻辑严密 → 补强", priority: "中优先", priorityClass: "badge-orange", text: "补充世界观细节，强化因果链与伏笔回收" },
];

const SHOWCASE_POINTS = [
  { icon: "⚡", title: "六维评分", text: "结构、节奏、人物到商业潜力全面量化" },
  { icon: "◈", title: "质量量化", text: "用雷达评分拆解剧本质量与短板" },
  { icon: "↗", title: "逐项优化", text: "给出可执行的优化路径和打磨方向" },
];

function animateNumber(el: HTMLElement | null, target: number, duration: number) {
  if (!el) return;
  const start = performance.now();
  const targetEl = el;
  function tick(now: number) {
    const p = Math.min((now - start) / duration, 1);
    targetEl.textContent = String(Math.round((1 - Math.pow(1 - p, 3)) * target));
    if (p < 1) requestAnimationFrame(tick);
  }
  requestAnimationFrame(tick);
}

function ScriptReviewShowcase() {
  const [animated, setAnimated] = useState(false);
  const scoreRef = useRef<HTMLSpanElement>(null);
  const barRefs = useRef<(HTMLDivElement | null)[]>([]);
  const scoreValRefs = useRef<(HTMLSpanElement | null)[]>([]);

  useEffect(() => {
    const el = document.getElementById("script-review-showcase");
    if (!el) return;
    const observer = new IntersectionObserver(
      ([entry]) => {
        if (entry?.isIntersecting) {
          setAnimated(true);
          observer.disconnect();
        }
      },
      { threshold: 0.25 },
    );
    observer.observe(el);
    return () => observer.disconnect();
  }, []);

  useEffect(() => {
    if (!animated) return;
    const timer = setTimeout(() => {
      animateNumber(scoreRef.current, 77, 1400);
      barRefs.current.forEach((bar, i) => {
        if (!bar) return;
        const pct = parseFloat(bar.dataset.pct ?? "0");
        setTimeout(() => { bar.style.height = `${pct}%`; }, i * 100 + 400);
      });
      scoreValRefs.current.forEach((el, i) => {
        setTimeout(() => animateNumber(el, parseInt(el?.dataset.target ?? "0"), 800), i * 100 + 400);
      });
    }, 500);
    return () => clearTimeout(timer);
  }, [animated]);

  return (
    <div className="omni-script-review-showcase" id="script-review-showcase">
      <div className="srs-left-panel">
        <div className="srs-brand-section">
          <h1>剧本智能测评</h1>
          <p>用六维雷达评分拆解剧本质量，从结构、节奏、人物到商业潜力给出可执行的优化路径。</p>
        </div>

        <div className="srs-point-list">
          {SHOWCASE_POINTS.map((item) => (
            <div key={item.title} className="srs-point-card">
              <div className="srs-point-icon">{item.icon}</div>
              <div>
                <h3>{item.title}</h3>
                <p>{item.text}</p>
              </div>
            </div>
          ))}
        </div>

        <div className="srs-flow-card">
          <span>上传剧本</span>
          <b>→</b>
          <span>六维评分</span>
          <b>→</b>
          <span>优化建议</span>
        </div>
      </div>

      <div className="srs-results-panel">
        {/* Score Hero */}
        <div className="srs-score-hero">
          <div className="srs-score-left">
            <div className="srs-score-circle">
              <div className="srs-score-circle-inner">
                <span className="srs-score-num" ref={scoreRef}>0</span>
                <span className="srs-score-den">/ 100</span>
              </div>
            </div>
            <div className="srs-score-meta">
              <div className="srs-score-grade">A 级</div>
              <div className="srs-score-tags">
                <span className="srs-score-tag">现实剧情</span>
                <span className="srs-score-tag">58min</span>
                <span className="srs-score-tag">6角色</span>
              </div>
            </div>
          </div>
          <div className="srs-score-divider" />
          <div className="srs-score-right">
            <div className="srs-score-proj">电商广告片生成项目计划 · 评测结果</div>
            <div className="srs-score-summary">
              现实剧情特征清晰，角色塑造表现突出。当前最值得继续打磨的是内容深度，建议围绕人物选择、冲突升级和可拍摄细节继续压实。
            </div>
          </div>
        </div>

        {/* Vertical Bar Chart */}
        <div className="srs-chart-card">
          <div className="srs-chart-title">六维评分 Dimension Breakdown</div>
          <div className="srs-chart-body">
            {DIMS.map((dim, i) => {
              const pct = dim.score / dim.max;
              return (
                <div key={dim.name} className="srs-chart-col">
                  <div className="srs-chart-bar-wrap">
                    <div className="srs-chart-bar-bg" style={{ height: "100%" }} />
                    <div
                      ref={(el) => { barRefs.current[i] = el; }}
                      className={`srs-chart-bar-fill${dim.isPerfect ? " is-perfect" : ""}${dim.isLow ? " is-low" : ""}`}
                      data-pct={String(Math.round(pct * 100))}
                      style={{ height: "0%" }}
                    >
                      <div className="srs-chart-bar-score">
                        <span
                          ref={(el) => { scoreValRefs.current[i] = el; }}
                          data-target={String(dim.score)}
                        >0</span>
                        <span className="srs-chart-bar-sub">/{dim.max}</span>
                        {dim.isPerfect && <span className="srs-chart-bar-star">★</span>}
                      </div>
                    </div>
                  </div>
                  <div className="srs-chart-col-label">
                    <div className="srs-chart-col-name">{dim.name}</div>
                    <div className="srs-chart-col-desc">{dim.desc}</div>
                  </div>
                </div>
              );
            })}
          </div>
        </div>

        {/* Triple Section */}
        <div className="srs-triple-section">
          {/* Highlights */}
          <div className="srs-section-card is-highlight">
            <div className="srs-section-header">
              <div className="srs-section-icon">✦</div>
              <span className="srs-section-label">亮点</span>
            </div>
            <div className="srs-section-list">
              {HIGHLIGHTS.map((item) => (
                <div key={item.dim} className="srs-section-item">
                  <div className="srs-section-item-head">
                    <span className="srs-section-item-dim">{item.dim}</span>
                    <span className="srs-section-item-score is-green">{item.score}</span>
                  </div>
                  <div className="srs-section-item-text">{item.text}</div>
                </div>
              ))}
            </div>
          </div>

          {/* Weaknesses */}
          <div className="srs-section-card is-weakness">
            <div className="srs-section-header">
              <div className="srs-section-icon">✗</div>
              <span className="srs-section-label">缺点</span>
            </div>
            <div className="srs-section-list">
              {WEAKNESSES.map((item) => (
                <div key={item.dim} className="srs-section-item">
                  <div className="srs-section-item-head">
                    <span className="srs-section-item-dim">{item.dim}</span>
                    <span className="srs-section-item-score is-red">{item.score}</span>
                  </div>
                  <div className="srs-section-item-text">{item.text}</div>
                </div>
              ))}
            </div>
          </div>

          {/* Optimization */}
          <div className="srs-section-card is-optimize">
            <div className="srs-section-header">
              <div className="srs-section-icon">⚡</div>
              <span className="srs-section-label">优化路径</span>
            </div>
            <div className="srs-section-list">
              {OPTIMIZATIONS.map((item) => (
                <div key={item.dim} className="srs-section-item">
                  <div className="srs-section-item-head">
                    <span className="srs-section-item-dim">{item.dim}</span>
                    <span className={`srs-section-item-badge ${item.priorityClass}`}>{item.priority}</span>
                  </div>
                  <div className="srs-section-item-text">{item.text}</div>
                </div>
              ))}
            </div>
          </div>
        </div>
      </div>
    </div>
  );
}

export default ScriptReviewShowcase;