#!/usr/bin/env node
/**
 * Usage: node convert-svg-to-svelte.js [inputDir] [outputDir]
 * Defaults: ./svgs ./svelte
 */
import fs from 'fs';
import path from 'path';

const INPUT_DIR = process.argv[2] || '../svgs';
const OUTPUT_DIR = process.argv[3] || '../src/lib/icons';

if (!fs.existsSync(OUTPUT_DIR)) fs.mkdirSync(OUTPUT_DIR, { recursive: true });

function processSvg(svgContent) {
	// Strip XML/DOCTYPE
	let out = svgContent.replace(/<\?xml[\s\S]*?\?>\s*/i, '').replace(/<!DOCTYPE[\s\S]*?>\s*/i, '');

	// Remove ALL comments
	out = out.replace(/<!--[\s\S]*?-->\s*/g, '');

	// Remove <g id="icomoon-ignore"></g> with any whitespace between tags
	out = out.replace(/<g\s+id=(["'])icomoon-ignore\1\s*>\s*<\/g>\s*/gi, '');

	// Ensure only width="100%" height="100%" on the <svg> tag
	out = out.replace(/<svg\b[^>]*>/i, (match) => {
		let tag = match
			.replace(/\s+(width|height)\s*=\s*"[^"]*"/gi, '')
			.replace(/\s+(width|height)\s*=\s*'[^']*'/gi, '');
		return tag.replace(/>$/, ' width="100%" height="100%">');
	});

	// Prepend the single license comment
	out = '<!-- generated by icomoon.io - licensed Lindua icon -->\n' + out.replace(/^\s+/, '');
	return out;
}

function convertSvgs(inputDir = INPUT_DIR, outputDir = OUTPUT_DIR) {
	if (!fs.existsSync(inputDir)) {
		console.warn(`Input directory not found: ${inputDir}`);
		return;
	}
	const files = fs.readdirSync(inputDir).filter((f) => f.toLowerCase().endsWith('.svg'));
	files.forEach((file) => {
		const src = path.join(inputDir, file);
		const dest = path.join(outputDir, file.replace(/\.svg$/i, '.svelte'));
		const svgContent = fs.readFileSync(src, 'utf8');
		const processed = processSvg(svgContent);
		fs.writeFileSync(dest, processed, 'utf8');
		console.log(`Converted: ${file} -> ${path.basename(dest)}`);
	});
}

convertSvgs();