// ==============================================================================
// 江中肝纯片 · VOC 深度洞察报告生成入口（参考 gen-houguyin.js）
// ==============================================================================
// 用法：node scripts/tools/gen-liver.js
// 输出：reports/jiangzhong-liver-voc-insight-report.html

const fs = require('fs');
const path = require('path');
const { buildHTML, CHAPTERS, CHAPTER_SUBSECTIONS } = require('./liver-render.js');
const LA = require('./liver-analyze.js');

const ROOT = path.resolve(__dirname, '..', '..');
const OUT_PATH = path.join(ROOT, 'reports', 'jiangzhong-liver-voc-insight-report.html');

function main() {
    const t0 = Date.now();

    console.log('╔═══════════════════════════════════════════════════════════╗');
    console.log('║   江中肝纯片 · VOC 深度洞察报告生成（DMY × 4 渠道）       ║');
    console.log('╚═══════════════════════════════════════════════════════════╝');

    const data = LA.loadMerged();
    const meta = LA.getMeta(data);
    const stage = meta.stage;

    console.log(`  采集阶段: ${stage}`);
    console.log(`  输出: ${path.relative(ROOT, OUT_PATH)}`);

    // 计算 slide 总数
    let slideTotal = 2;
    for (const c of CHAPTERS) {
        slideTotal += 1 + (CHAPTER_SUBSECTIONS[c.key] || []).length;
    }
    console.log(`  章节: 8 大章（诘问 / DMY 归因 / 市场 VOC / KANO×JTBD / 场景地图 / 竞品三轴 / 新机会 / 4P 蓝图）`);
    console.log(`  slide 总数: ${slideTotal}`);

    if (meta.comments > 0) {
        console.log(`  VOC 数据: ${meta.comments} 条评论 / ${Object.keys(meta.platforms || {}).length} 平台 / ${meta.keywords} 关键词`);
        console.log(`    · 小红书: ${meta.platforms?.xhs || 0}`);
        console.log(`    · 抖音:   ${meta.platforms?.douyin || 0}`);
        console.log(`    · Amazon: ${meta.platforms?.amazon || 0}`);
        console.log(`    · 假设覆盖: ${Object.entries(meta.hypotheses || {}).map(([h, c]) => h + ':' + c).join(' / ')}`);
    } else {
        console.log(`  ⚠ VOC 数据待加载`);
    }

    // 生成 HTML
    const html = buildHTML({
        product: '江中肝纯片',
        collectedAt: meta.collectedAt,
    });

    // 写入
    fs.mkdirSync(path.dirname(OUT_PATH), { recursive: true });
    fs.writeFileSync(OUT_PATH, html, 'utf8');

    const sizeKB = (Buffer.byteLength(html, 'utf8') / 1024).toFixed(1);
    const ms = Date.now() - t0;

    console.log('');
    console.log(`  ✅ 生成完成`);
    console.log(`     路径: ${path.relative(ROOT, OUT_PATH)}`);
    console.log(`     大小: ${sizeKB} KB`);
    console.log(`     耗时: ${ms} ms`);
    console.log(`     阶段: ${stage}`);
}

if (require.main === module) {
    main();
}

module.exports = { main };