const { execSync } = require('child_process');

const getMongoVersion = async function({ version, git }) {
	try {
		const workflows = await git.show([`${ version }:.github/workflows/ci.yml`]);

		const mongoMatch = workflows.match(/compatibleMongoVersions\\": \[([^\]]+)\]/);
		if (!mongoMatch) {
			return [];
		}

		return mongoMatch[1].replace(/["'\\ ]/g, '').split(',');
	} catch (e) {
		console.error(e);
	}
	return [];
};

const getNodeNpmVersions = async function({ version, git, request }) {
	try {
		const meteorRelease = await git.show([`${ version }:apps/meteor/.meteor/release`]);
		if (!/^METEOR@(\d+\.){1,2}\d/.test(meteorRelease)) {
			return {};
		}

		const meteorVersion = meteorRelease.replace(/\n|\s/g, '');

		const requestResult = await request(`https://raw.githubusercontent.com/meteor/meteor/release/${ meteorVersion }/scripts/build-dev-bundle-common.sh`);

		return {
			node_version: requestResult.match(/NODE_VERSION=((?:\d+\.){2}\d+)/m)[1],
			npm_version: requestResult.match(/NPM_VERSION=((?:\d+\.){2}\d+)/m)[1],
		};
	} catch (e) {
		console.error(e);
	}

	return {};
};

const getAppsEngineVersion = async function({ version, git }) {
	try {
		const result = execSync('yarn why @rocket.chat/apps-engine --json');

		const resultString = result.toString();

		const match = resultString.match(/"@rocket\.chat\/meteor@workspace:apps\/meteor".*"@rocket\.chat\/apps\-engine@[^#]+#npm:([^"]+)"/);
		if (match) {
			return match[1];
		}
	} catch (e) {
		console.error(e);
	}

	return undefined;
};

module.exports = async function({ version, git, request }) {
	const mongo_versions = await getMongoVersion({ version, git });
	const apps_engine_version = await getAppsEngineVersion({ version, git });

	const {
		node_version,
		npm_version,
	} = await getNodeNpmVersions({ version, git, request });

	return {
		node_version,
		npm_version,
		apps_engine_version,
		mongo_versions,
	};
};