GetHost.php
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GetHost.php
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	<?php

	namespace Nasqueron\SAAS\MediaWiki\Utilities;

	use Nasqueron\SAAS\MediaWiki\Configuration\Instances;
	use Nasqueron\SAAS\MediaWiki\Configuration\Settings;
	use Nasqueron\SAAS\InstanceNotFoundException;

	use Keruald\Commands\Command;

	class GetHost extends Command {

	public const EXIT_HOST_NOT_FOUND = 2;

	public function main () : int {
	if ($this->getArgc() < 2) {
	self::usage();
	return 1;
	}

	try {
	$this->display->out($this->search($this->getArgv()[1]));
	} catch (InstanceNotFoundException $exception) {
	$this->display->error("Host not found.");
	return self::EXIT_HOST_NOT_FOUND;
	}

	return 0;
	}

	public function search (string $needle) : string {
	if (self::isDomain($needle)) {
	return Instances::getCanonicalHost($needle);
	}

	return self::getHostFromAlias($needle);
	}

	public static function isDomain ($string) : bool {
	return strpos($string, ".") !== false;
	}

	public static function getHostFromAlias (string $alias) : string {
	// Map alias to database
	$map = Settings::getDatabaseMap();
	if (isset($map[$alias])) {
	$alias = $map[$alias];
	}

	// Get database from host
	$host = array_search($alias, Instances::getList());
	if ($host === false) {
	throw new InstanceNotFoundException($alias);
	}

	return $host;
	}

	public function usage () : void {
	$commandName = $this->getCommandName();
	$this->display->error("Usage: $commandName <wiki host or alias>");
	}
	}