import { execCommand2, rootDir } from './tool-utils';
import * as moment from 'moment';

export function getVersionFromTag(tagName: string, isPreRelease: boolean): string {
	if (tagName.indexOf('server-') !== 0) throw new Error(`Invalid tag: ${tagName}`);
	const s = tagName.split('-');
	const suffix = isPreRelease ? '-beta' : '';
	return s[1].substr(1) + suffix;
}

export function getIsPreRelease(_tagName: string): boolean {
	// For now we only create pre-releases from CI. It's after, once the release
	// has been proven stable, that it is tagged as "latest".
	return true;
	// return tagName.indexOf('-beta') > 0;
}

async function main() {
	const argv = require('yargs').argv;
	if (!argv.tagName) throw new Error('--tag-name not provided');

	const pushImages = !!argv.pushImages;
	const tagName = argv.tagName;
	const isPreRelease = getIsPreRelease(tagName);
	const imageVersion = getVersionFromTag(tagName, isPreRelease);
	const buildDate = moment(new Date().getTime()).format('YYYY-MM-DDTHH:mm:ssZ');
	let revision = '';
	try {
		revision = await execCommand2('git rev-parse --short HEAD', { showOutput: false });
	} catch (error) {
		console.info('Could not get git commit: metadata revision field will be empty');
	}
	const buildArgs = `--build-arg BUILD_DATE="${buildDate}" --build-arg REVISION="${revision}" --build-arg VERSION="${imageVersion}"`;
	const dockerTags: string[] = [];
	const versionPart = imageVersion.split('.');
	dockerTags.push(isPreRelease ? 'beta' : 'latest');
	dockerTags.push(versionPart[0] + (isPreRelease ? '-beta' : ''));
	dockerTags.push(`${versionPart[0]}.${versionPart[1]}${isPreRelease ? '-beta' : ''}`);
	dockerTags.push(imageVersion);

	process.chdir(rootDir);
	console.info(`Running from: ${process.cwd()}`);

	console.info('tagName:', tagName);
	console.info('pushImages:', pushImages);
	console.info('imageVersion:', imageVersion);
	console.info('isPreRelease:', isPreRelease);
	console.info('Docker tags:', dockerTags.join(', '));

	await execCommand2(`docker build -t "joplin/server:${imageVersion}" ${buildArgs} -f Dockerfile.server .`);
	for (const tag of dockerTags) {
		await execCommand2(`docker tag "joplin/server:${imageVersion}" "joplin/server:${tag}"`);
		if (pushImages) await execCommand2(`docker push joplin/server:${tag}`);
	}
}

if (require.main === module) {
	main().catch((error) => {
		console.error('Fatal error');
		console.error(error);
		process.exit(1);
	});
}