// 生成 js/data/manifest/BASELINE.md —— 系统现状基线快照（构建后运行，AI 采集指令的「执行前自查」数据源）
// 用法：node scripts/build-baseline.js
const fs = require('fs');
const path = require('path');

const MAN = 'js/data/manifest';
const read = (f) => JSON.parse(fs.readFileSync(path.join(MAN, f), 'utf8'));

const icons = read('icons.json');
const posters = read('posters.json');
const skills = read('skills.json');

const countBy = (arr, key) => {
  const m = {};
  arr.forEach((x) => { m[x[key]] = (m[x[key]] || 0) + 1; });
  return m;
};

// 三区覆盖：优先 workspaces 字段，缺省按 scene 关键词统计
const wsCount = (skill) => {
  if (Array.isArray(skill.workspaces) && skill.workspaces.length) {
    return {
      logo: skill.workspaces.includes('logo'),
      avatar: skill.workspaces.includes('avatar'),
      poster: skill.workspaces.includes('poster'),
    };
  }
  const sc = skill.scene || '';
  return {
    logo: /LOGO|logo/.test(sc),
    avatar: /头像|avatar/.test(sc),
    poster: /海报|poster/.test(sc),
  };
};
const cover = (list) => {
  const c = { logo: 0, avatar: 0, poster: 0, none: 0 };
  list.forEach((s) => {
    const w = wsCount(s);
    if (!w.logo && !w.avatar && !w.poster) c.none++;
    if (w.logo) c.logo++;
    if (w.avatar) c.avatar++;
    if (w.poster) c.poster++;
  });
  return c;
};

const sharedSkills = skills.shared.skills || [];
const posterSkills = (skills.poster && skills.poster.skills) || [];
const stickerSkills = (skills.sticker && skills.sticker.skills) || [];
const sharedCat = countBy(sharedSkills, 'category');
const posterCat = countBy(posterSkills, 'category');
const stickerCat = countBy(stickerSkills, 'category');
const sharedCover = cover(sharedSkills);
const posterCover = cover(posterSkills);

const iconTypes = countBy(icons.sources, 'type');
const posterTypes = countBy(posters.sources, 'type');

const lines = [];
lines.push('# 画个标 · 系统基线（构建自动生成，勿手改）');
lines.push('');
lines.push('> 由 `scripts/build-baseline.js` 生成。素材/技能变更并构建后，重新运行 `node scripts/build-baseline.js` 即自动更新。');
lines.push('> 执行「AI 指令库 指令一~四」前，先读本文件获取当前基线，勿依赖记忆中的数字。');
lines.push('');
lines.push('## 生成时间');
lines.push('');
lines.push(new Date().toISOString());
lines.push('');
lines.push('## ① 图标库（共享，LOGO/头像/海报共用）');
lines.push('');
lines.push(`- 源数：${icons.sources.length} | 图标总数：${icons.total}`);
lines.push(`- 类型分布：${Object.entries(iconTypes).map(([k, v]) => `${k} ${v}`).join(' / ')}`);
lines.push('- 源清单（含 count/file/workspaces）：js/data/manifest/icons.json');
lines.push('');
lines.push('## ② 海报素材库');
lines.push('');
lines.push(`- 源数：${posters.sources.length} | 素材总数：${posters.total}`);
lines.push(`- 类型分布：${Object.entries(posterTypes).map(([k, v]) => `${k} ${v}`).join(' / ')}`);
lines.push('- 源清单：js/data/manifest/posters.json');
lines.push('');
lines.push('## ③ 技能库');
lines.push('');
lines.push(`- 共享技能：${sharedSkills.length}（分类：${Object.entries(sharedCat).map(([k, v]) => `${k} ${v}`).join(' / ')}）`);
lines.push(`- 海报技能：${posterSkills.length}（分类：${Object.entries(posterCat).map(([k, v]) => `${k} ${v}`).join(' / ')}）`);
lines.push(`- 表情技能：${stickerSkills.length}（分类：${Object.entries(stickerCat).map(([k, v]) => `${k} ${v}`).join(' / ')}）`);
lines.push(`- 三区覆盖（共享，按 scene/workspaces）：LOGO 向 ${sharedCover.logo} / 头像向 ${sharedCover.avatar} / 海报向 ${sharedCover.poster} / 未标注 ${sharedCover.none}`);
lines.push(`- 三区覆盖（海报专属）：LOGO 向 ${posterCover.logo} / 头像向 ${posterCover.avatar} / 海报向 ${posterCover.poster}`);
lines.push('- 技能明细：js/data/manifest/skills.json');
lines.push('');
lines.push('## 指令使用提示');
lines.push('');
lines.push('- 指令一（新增图标源）：去重以本文件 ① 的源清单 + icon-sources.js 现有 id 为准');
lines.push('- 指令二（新增海报源）：去重以 ② + poster-sources.js 现有 id 为准');
lines.push('- 指令三（新增技能）：看 ③ 三区覆盖找缺口（头像向最少则优先补头像）；表情向技能看表情技能分类分布');
lines.push('');

const out = path.join(MAN, 'BASELINE.md');
fs.writeFileSync(out, lines.join('\n'), 'utf8');
console.log('已生成 ' + out);
console.log(lines.join('\n'));