const baseUrl = new URL('https://github.com/withastro/astro/blob/main/');

const emojis = ['🎉', '🥳', '🚀', '🧑‍🚀', '🎊', '🏆', '✅', '🤩', '🤖', '🙌'];
const descriptors = ['new releases', 'hot and fresh updates', 'shiny updates', 'exciting changes', 'package updates', 'awesome updates', 'bug fixes and features', 'updates'];
const verbs = [
	'just went out!',
	'just launched!',
	'now available!',
	'in the wild!',
	'now live!',
	'hit the registry!',
	'to share!',
	'for you!',
	'for y’all! 🤠',
	'comin’ your way!',
	'comin’ atcha!',
	'comin’ in hot!',
	'freshly minted on the blockchain! (jk)',
	'[is] out (now with 100% more reticulated splines!)',
	'(as seen on TV!)',
	'just dropped!',
	'– artisanally hand-crafted just for you.',
	'– oh happy day!',
	'– enjoy!',
	'now out. Be the first on your block to download!',
	'made with love 💕',
	'[is] out! Our best [version] yet!',
	'[is] here. DOWNLOAD! DOWNLOAD! DOWNLOAD!',
	'... HUZZAH!',
	'[has] landed!',
	'landed! The internet just got a little more fun.',
	'– from our family to yours.',
	'– go forth and build!',
];

function item(items) {
	return items[Math.floor(Math.random() * items.length)];
}

const plurals = new Map([
	['is', 'are'],
	['has', 'have'],
]);

function pluralize(text) {
	return text.replace(/(\[([^\]]+)\])/gm, (_, _full, match) => (plurals.has(match) ? plurals.get(match) : `${match}s`));
}

function singularlize(text) {
	return text.replace(/(\[([^\]]+)\])/gm, (_, _full, match) => `${match}`);
}

const packageMap = new Map([
	['astro', './packages/astro'],
	['@astrojs/parser', './packages/astro-parser'],
	['@astrojs/prism', './packages/astro-prism'],
	['create-astro', './packages/create-astro'],
	['@astrojs/markdown-remark', './packages/markdown/remark'],
	['@astrojs/renderer-lit', './packages/renderers/renderer-lit'],
	['@astrojs/renderer-preact', './packages/renderers/renderer-preact'],
	['@astrojs/renderer-react', './packages/renderers/renderer-react'],
	['@astrojs/renderer-solid', './packages/renderers/renderer-solid'],
	['@astrojs/renderer-solid', './packages/renderers/renderer-solid'],
	['@astrojs/renderer-svelte', './packages/renderers/renderer-svelte'],
	['@astrojs/renderer-vue', './packages/renderers/renderer-vue'],
	['@astrojs/webapi', './packages/webapi'],
]);

async function run() {
	const releases = process.argv.slice(2)[0];
	const data = JSON.parse(releases);
	const packages = await Promise.all(
		data.map(({ name, version }) => {
			const p = packageMap.get(name);
			if (!p) {
				throw new Error(`Unable to find entrypoint for "${name}"!`);
			}
			return { name, version, url: new URL(`${p}/CHANGELOG.md#${version.replace(/\./g, '')}`, baseUrl).toString() };
		})
	);

	const emoji = item(emojis);
	const descriptor = item(descriptors);
	const verb = item(verbs);

	if (packages.length === 1) {
		const { name, version, url } = packages[0];
		console.log(`${emoji} \`${name}@${version}\` ${singularlize(verb)}\nRead the [release notes →](<${url}>)`);
	} else {
		console.log(`${emoji} Some ${descriptor} ${pluralize(verb)}\n`);
		for (const { name, version, url } of packages) {
			console.log(`• \`${name}@${version}\` Read the [release notes →](<${url}>)`);
		}
	}
}

run();