<?php

function checkDomainFormat($domain) {
	// If the domain must end without a dot
	if (!filter_var($domain, FILTER_VALIDATE_DOMAIN) OR !preg_match("/^([a-z0-9_-]{1,63}\.){1,126}[a-z0-9]{1,63}$/", $domain))
		userError("Wrong domain.");
}

function listFsDirs($username) {
	$absoluteDirs = glob(CONF['ht']['ht_path'] . "/" . $username . "/*/", GLOB_ONLYDIR);
	$relativeDirs = false;
	foreach ($absoluteDirs as $i => $absoluteDir) {
		if (preg_match("/^[a-z0-9-]{1,32}$/", basename($absoluteDir)))
			$relativeDirs[$i] = basename($absoluteDir); // The name of the site dir is the before last key
	}
	return $relativeDirs;
}

function addSite($username, $siteDir, $domain, $domainType, $protocol) {
	$db = new PDO('sqlite:' . DB_PATH);

	$op = $db->prepare("INSERT INTO sites(username, site_dir, domain, domain_type, protocol, creation_date, le_enabled) VALUES(:username, :site_dir, :domain, :domain_type, :protocol, :creation_date, :le_enabled)");

	$time = date("Y-m-d H:i:s");
	if ($domainType === "dns" AND $protocol === "http")
		$le_enabled = 0;
	else
		$le_enabled = NULL;

	$op->bindParam(':username', $username);
	$op->bindParam(':site_dir', $siteDir);
	$op->bindParam(':domain', $domain);
	$op->bindParam(':domain_type', $domainType);
	$op->bindParam(':protocol', $protocol);
	$op->bindParam(':creation_date', $time);
	$op->bindParam(':le_enabled', $le_enabled);

	$op->execute();
}

function listDbDirs($username, $domainType, $protocol) {
	$db = new PDO('sqlite:' . DB_PATH);
	$usernameArray[0] = $username;

	$op = $db->prepare('SELECT site_dir FROM sites WHERE username = :username AND domain_type = :domain_type AND protocol = :protocol');
	$op->bindParam(':username', $username);
	$op->bindParam(':domain_type', $domainType);
	$op->bindParam(':protocol', $protocol);
	$op->execute();

	$i = 0;
	$data = $op->fetch();
	if (isset($data['site_dir']))
		$siteDir = $data['site_dir'];
	else
		$siteDir = NULL;

	while ($siteDir != NULL) {
		$siteDirs[$i] = $siteDir;
		$i++;
		$data = $op->fetch();
		if (isset($data['site_dir']))
			$siteDir = $data['site_dir'];
		else
			$siteDir = NULL;
	}
	if (isset($siteDirs))
		return $siteDirs;
	else
		return false;
}

function dirsStatuses($username, $domainType, $protocol) {
	$dirs = false;
	$fsDirs = listFsDirs($username);
	$dbUsedDirs = listDbDirs($username, $domainType, $protocol);
	if ($fsDirs) {
		foreach ($fsDirs as $fsDir) {
			$dirs[$fsDir] = ($dbUsedDirs AND in_array($fsDir, $dbUsedDirs));
		}
	}
	return $dirs;
}

function selectSites($username, $domainType, $protocol, $onlyLeAvailable) {
	$db = new PDO('sqlite:' . DB_PATH);
	$usernameArray[0] = $username;

	$query = "SELECT site_dir,domain FROM sites WHERE username = :username AND domain_type = :domain_type AND protocol = :protocol";

	if ($onlyLeAvailable === true)
		$query = $query . " AND le_enabled = 0";

	$op = $db->prepare($query);
	$op->bindParam(':username', $username);
	$op->bindParam(':domain_type', $domainType);
	$op->bindParam(':protocol', $protocol);
	$op->execute();

	$i = 0;
	$entry = $op->fetch();
	while (isset($entry['site_dir'])) {
		$result[$i]["siteDir"] = $entry['site_dir'];
		$result[$i]["domain"] = $entry['domain'];
		$i++;
		$entry = $op->fetch();
	}

	if (isset($result))
		return $result;
	else
		return false;
}