#!/usr/bin/env node

/**
 * Generate output HTML from template for space-coloring documents.
 *
 * Usage: node generate.mjs <docId>
 * Example: node generate.mjs space-coloring-1
 *
 * Coloring pages have no editable data layer — the template IS the output.
 * If a data.json exists in the future, it's currently ignored.
 */

import { readFileSync, writeFileSync, existsSync } from 'fs';
import { join, dirname } from 'path';
import { fileURLToPath } from 'url';
import { postGenerate } from '../../../src/scripts/post-generate.mjs';

const __dirname = dirname(fileURLToPath(import.meta.url));
const docsDir = join(__dirname, '..', 'docs');

const docId = process.argv[2];
if (!docId) {
  console.error('Usage: node generate.mjs <docId>');
  process.exit(1);
}

const templatePath = join(docsDir, `${docId}.template.html`);
const outputPath = join(docsDir, `${docId}.output.html`);

if (!existsSync(templatePath)) {
  console.error(`Template not found: ${templatePath}`);
  process.exit(1);
}

const html = readFileSync(templatePath, 'utf-8');
writeFileSync(outputPath, html);
console.log(`Generated: ${outputPath}`);
await postGenerate(outputPath);