import {
	executeCommand,
	createGithubPR,
	cleanSandbox,
} from './deploy-utils.mjs';

const publicThemesFolder = process.env.PUBLIC_THEMES_FOLDER;

const coreThemes = [
	'twentyten',
	'twentyeleven',
	'twentytwelve',
	'twentythirteen',
	'twentyfourteen',
	'twentyfifteen',
	'twentysixteen',
	'twentyseventeen',
	'twentynineteen',
	'twentytwenty',
	'twentytwentyone',
	'twentytwentytwo',
	'twentytwentythree',
	'twentytwentyfour',
	'twentytwentyfive',
];

export async function pullCoreThemes() {
	console.log( 'Pulling CORE themes from sandbox.' );
	for ( let theme of coreThemes ) {
		await executeCommand(
			`
            rsync -avr --no-p --no-times --delete -m --exclude-from='.theme-utils/.sandbox-ignore' wpcom-sandbox:${ publicThemesFolder }/${ theme }/ ./${ theme }/ 
        `,
			true
		);
	}
}

export async function pushCoreThemes() {
	console.log( 'Pushing CORE themes to sandbox.' );
	for ( let theme of coreThemes ) {
		await executeCommand(
			`
            rsync -avr --no-p --no-times --delete -m --exclude-from='.theme-utils/.sandbox-ignore' ./${ theme }/ wpcom-sandbox:${ publicThemesFolder }/${ theme }/ 
        `,
			true
		);
	}
}

export async function syncCoreTheme( theme, sinceRevision ) {
	if ( ! theme ) {
		console.log( 'Must supply theme to sync and revision to start from' );
		return;
	}
	if ( ! sinceRevision ) {
		sinceRevision = await executeCommand(
			`cat ./${ theme }/.pub-svn-revision`
		);
	}
	let latestRevision = await executeCommand(
		`svn info -r HEAD https://develop.svn.wordpress.org/trunk | grep Revision | egrep -o "[0-9]+"`
	);
	console.log(
		`syncing core theme ${ theme } from ${ sinceRevision } to ${ latestRevision }`
	);
	try {
		await executeCommand(
			`
			svn merge --accept postpone http://develop.svn.wordpress.org/trunk/src/wp-content/themes/${ theme } ./${ theme } -r${ sinceRevision }:HEAD
			echo '${ latestRevision }' > ./${ theme }/.pub-svn-revision
		`,
			true
		);
	} catch ( err ) {
		console.log( 'Error merging:', err );
	}
	return latestRevision;
}

export async function checkoutCoreTheme( theme ) {
	if ( ! theme ) {
		console.log( 'Must supply theme to sync and revision to start from' );
		return;
	}
	return executeCommand( `
        rm -rf ./${ theme }
        svn checkout https://wpcom-themes.svn.automattic.com/${ theme } ./${ theme }
    ` );
}

export async function deploySyncCoreTheme( theme, sinceRevision ) {
	if ( ! theme ) {
		console.log( 'Must supply theme to sync and revision to start from' );
		return;
	}
	await cleanSandbox();

	await checkoutCoreTheme( theme );
	await syncCoreTheme( theme, sinceRevision );

	let prompt = await inquirer.prompt( [
		{
			type: 'confirm',
			message: `Changes have been synced locally.  Please resolve any conflicts now.  Are you ready to continue?`,
			name: 'continue',
			default: false,
		},
	] );

	if ( ! prompt.continue ) {
		console.log( `Aborted Core Sync Deploy.` );
		return;
	}

	await pushThemeToSandbox( theme );
	let prId = await createCoreGithubPR( theme, sinceRevision );

	prompt = await inquirer.prompt( [
		{
			type: 'confirm',
			message: 'Are you ready to land these changes?',
			name: 'continue',
			default: false,
		},
	] );

	if ( ! prompt.continue ) {
		console.log(
			`Aborted Automated Deploy Sync Process Landing Phase\n\nYou will have to land these changes manually.  The ID of the PR to land: ${ prId }`
		);
		return;
	}

	await deployThemes( [ theme ] );
	return;
}

async function buildCoreGithubCommitMessageSince( theme, sinceRevision ) {
	let latestRevision = await executeCommand(
		`svn info -r HEAD https://develop.svn.wordpress.org/trunk | grep Revision | egrep -o "[0-9]+"`
	);
	let logs = await executeCommand(
		`svn log https://core.svn.wordpress.org/trunk/wp-content/themes/${ theme } -r${ sinceRevision }:HEAD`
	);

	// Remove any double or back quotes from commit messages
	logs = logs.replace( /"/g, '' );
	logs = logs.replace( /`/g, "'" );
	logs = logs.replace( /\$/g, '%24' );

	return `${ theme }: Merge latest core changes up to [wp${ latestRevision }]

Summary:
${ logs }

Test Plan: Activate ${ theme } and ensure nothing is broken

Reviewers:
#themes_team

Subscribers:
`;
}

/**
 * Deploys the localy copy of a core theme to wpcom.
 */
export async function createCoreGithubPR( theme, sinceRevision ) {
	let commitMessage = await buildCoreGithubCommitMessageSince(
		theme,
		sinceRevision
	);

	let prUrl = await createGithubPR( commitMessage );
	let prId = prUrl.split( 'pull/' )[ 1 ];
	return prId;
}