const { Canvas } = require('canvas-constructor');
const { promises: fs } = require('fs');

const flags = {
	pride: ["#E70000", "#FF8C00", "#FFEF00", "#00811F", "#0044FF", "#760089"],
	trans: ["#55CDFC", "#F7A8B8", "#FFFFFF", "#F7A8B8", "#55CDFC"],
	pan: ["#FF148C", "#FFDA00", "#05AEFF"],
	ace: ["#000000", "#A3A3A3", "#FFFFFF", "#800080"],
	nb: ["#FFF433", "#FFFFFF", "#9b59d0", "#000000"],
	bi: ["#D9006F", "#744D98", "#0033AB"],
	lesbian: ["#A40061", "#B75592", "#ECECEA", "#C44E55", "#8A1E04"],
	agender: ["#000000", "#FFFFFF", "#AFECB9", "#BBBBBB", "#000000"],
};

const width = 500, height = 400;

const processImage = (name) => {
	const c = new Canvas(width, height);
	const colors = flags[name];
	const stripeHeight = height / colors.length + 1;
	for (let y = 0; y < colors.length; y++) {
		c.setColor(colors[y]);
		c.addRect(0, y * stripeHeight, width, y * stripeHeight + stripeHeight);
	}

	return c.toBufferAsync();
}

const main = async () => {
	const keys = Object.keys(flags);
	for (const key of keys) {
		const buffer = await processImage(key);
		await fs.writeFile(`./flags/${key}.png`, buffer);
	}
}

main();