#!/usr/env/bin node

import { readFileSync } from 'fs';
import log, { Pixel, Image } from './main'
import { splitEvery } from './utils';

const fileName = process.argv[2];

if (!fileName) {
	console.error('You need to pass a filename.');
	process.exit(1);
}

try {
	readFileSync(fileName);
} catch (e) {
	console.error(`File could not be read, error follows.`);
	console.error(e);
	process.exit(1);
}

const image = readFileSync(fileName, 'utf8');

const rows = image.split(/\r?\n/);

const pixels = rows.map(r => splitEvery(r, 6)).map(r => {
	return r.map(chars => {
		return {
			red: parseInt(chars[0] + chars[1], 16),
			green: parseInt(chars[2] + chars[3], 16),
			blue: parseInt(chars[4] + chars[5], 16),
		} as Pixel
	});
});

const img = new Image(pixels[0].length, pixels.length);
img.buffer = pixels;

log(img);