#!/usr/bin/env node
/**
 * Parse a DWG in Node — no browser, no Viewer2D. Same acadrust wasm and
 * Korean-text fixup as src/viewer2d/dwgParser.ts.
 *
 * Usage:
 *   node scripts/parse-dwg.mjs <file.dwg>             # print summary
 *   node scripts/parse-dwg.mjs <file.dwg> out.json    # also write full parseResult
 *
 * Needs Node >= 22.18 (imports fixDwgKoreanText.ts via built-in type stripping).
 */
import { readFileSync, writeFileSync } from 'node:fs';
import { initSync, parse_dwg_json } from '../src/viewer2d/acadrust-dwg/acadrust_dwg.js';
import { fixDwgKoreanText } from '../src/viewer2d/fixDwgKoreanText.ts';

const [inPath, outPath] = process.argv.slice(2);
if (!inPath) {
  console.error('usage: node scripts/parse-dwg.mjs <file.dwg> [out.json]');
  process.exit(1);
}

const wasmUrl = new URL('../src/viewer2d/acadrust-dwg/acadrust_dwg_bg.wasm', import.meta.url);
initSync({ module: readFileSync(wasmUrl) });

const t0 = performance.now();
const result = fixDwgKoreanText(JSON.parse(parse_dwg_json(readFileSync(inPath))));
const ms = performance.now() - t0;

const entities = result.entities ?? [];
const byType = {};
for (const e of entities) byType[e.type] = (byType[e.type] ?? 0) + 1;

console.log(`file     : ${inPath}`);
console.log(`version  : ${result.version}`);
console.log(`parse    : ${ms.toFixed(0)} ms`);
console.log(`entities : ${entities.length}`);
console.table(Object.entries(byType).sort((a, b) => b[1] - a[1]).map(([type, count]) => ({ type, count })));
console.log(`tables   : ${Object.keys(result.tables ?? {}).join(', ')}`);
if (result.stats) console.log('stats    :', result.stats);

if (outPath) {
  writeFileSync(outPath, JSON.stringify(result, null, 2));
  console.log(`wrote    : ${outPath}`);
}