#!/usr/bin/env node
/* build.cjs — emit the STLs. Geometry lives in models.cjs; validation in test-fit.cjs.
   Nothing is written unless the mesh check passes, so a bad model cannot reach the printer. */
'use strict';
const fs = require('fs');
const path = require('path');
const { benchPlate, fitGauge } = require('./models.cjs');

const OUT = process.argv[2] || __dirname;
fs.mkdirSync(OUT, { recursive: true });
let bad = 0;

for (const [name, built, note] of [
  ['esp32-bench-plate', benchPlate(), 'dankbuild bench plate - ESP32-S3-DevKitC-1 + BB400 breadboard'],
  ['esp32-fit-gauge', fitGauge(), 'dankbuild fit gauge - measures DevKitC-1 board width'],
]) {
  const v = built.m.check();
  const b = built.m.bounds();
  if (!v.ok) { bad++; console.error(`${name}: MESH INVALID - ${v.problems.join('; ')} (not written)`); continue; }
  const file = path.join(OUT, name + '.stl');
  fs.writeFileSync(file, built.m.stl(note));
  console.log(`${name}.stl - ${v.triangles} triangles / ${v.solids} solids, no interpenetration`);
  console.log(`   ${b.size.map((n) => n.toFixed(1)).join(' x ')} mm, ${(fs.statSync(file).size / 1024).toFixed(1)} KB`);
  if (built.meta.widths) console.log(`   channels ${built.meta.widths.join(' / ')} mm - 1 rib = narrowest`);
  else console.log(`   breadboard bay ${built.meta.bbBayW.toFixed(1)} x ${built.meta.bbBayD.toFixed(1)} mm`
    + `, devkit bay ${built.meta.dkBayW.toFixed(1)} mm wide, open-ended (board overhangs ${built.meta.overhang.toFixed(1)} mm total)`);
}
process.exit(bad ? 1 : 0);