<?php
/**
 * Installer for the Noostr application.
 *
 * @package Noostr
 * @subpackage Installer
 */

/**
 * Turn error display ON during development
 */
ini_set('display_errors', 1);

/**
 * Initial contant declarations.
 */
define('SYSPATH', $_SERVER['DOCUMENT_ROOT']);

/**
 * Installer constant.
 */
define('INSTALL', true);

/**
 * Set the timer variable and start the site timer
 */
$timerstart = 0;
timer();

/**
 * Load the initial user defineable settings
 */
include_once(SYSPATH.'/settings.php');

/**
 * Initial constants declarations.
 */
define('CLASSES', ENGINE.'/classes');
define('INCLUDES', ENGINE.'/includes');
define('HANDLERS', ENGINE.'/handlers');

/**
 * Configure the system, the site and the templates
 */
include_once(SYSPATH.'/'.INCLUDES.'/config.php');

/**
 * Start the installer.
 */

// First, check to see if Noostr is already installed.
$go = true;
if (count($db->query('select * from '.PREFIX.'settings_site')) > 0) {
	// Noostr is already installed!
	$go = false;
}

if (form_required('step,admin,sitename') && $go) {
	// If Noostr is not installed and the required POSTs are here, install the system.
	if (form('step') == '2') {
		echo "Installing system...<br />\n";
		$pass = createuid(8);
		$file = file_get_contents('noostr20100506.sql');
		$file = str_replace("\n", "", $file);
		$file = str_replace("%prefix%", PREFIX, $file);
		$file = str_replace("%admin%", form('admin'), $file);
		$file = str_replace("%sitename%", form('sitename'), $file);
		$file = str_replace("%pass%", sha1($pass), $file);
		$file = str_replace("%date%", date('Y/m/d h:i:s a'), $file);
		$file = str_replace("%siteid%", createuid(32), $file);
		//echo $file;
		$statements = explode(';', $file);
		for ($i = 0, $c = count($statements); $i < $c; $i++) {
			//echo "Query $i: $statements[$i]<br />\n";
			$db->query($statements[$i]);
		}
		echo "Done!<br />\n";
		echo "Your password is <strong>$pass</strong> - do not lose it!<br /><br />\n";
		echo '<a href="/">Click here.</a><br />';
	}
} elseif (form_required('step') && !$go) {
	// If Noostr is not installed and the required POSTs are here, upgrade the system.
	if (form('step') == '10') {
		echo "Upgrading system...<br />\n";
		$file = file_get_contents('20100425-20100506.sql');
		$file = str_replace("\n", "", $file);
		$file = str_replace("%prefix%", PREFIX, $file);
		$statements = explode(';', $file);
		for ($i = 0, $c = count($statements); $i < $c; $i++) {
			$db->query($statements[$i]);
		}
		echo "Done!<br />\n";
		echo '<a href="/">Click here.</a><br />';
	}
} elseif ($go) {
	// Noostr is not installed!
?>
<p>Installer page!</p>
<form name="admininstall" action="<?php echo $_SERVER["SCRIPT_NAME"]; ?>" method="post">
	<input name="step" id="step" type="hidden" value="2" />
	<dl>
		<dt>Name of your site:</dt>
		<dd><input name="sitename" id="sitename" type="text" value="" /></dd>
		<dt>Your login name:</dt>
		<dd><input name="admin" id="admin" type="text" value="" /></dd>
	</dl>
	<input type="submit" name="submit" value="Submit!" />
</form>
<?php
} else {
	// Noostr is installed - do we need to upgrade?
	if ($site->lastUpdateCheck == null) {
		// We need to upgrade!
?>
<p>Installer page!</p>
<p>Looks like there is an upgrade available.</p>
<form name="adminupgrade" action="<?php echo $_SERVER["SCRIPT_NAME"]; ?>" method="post">
	<input name="step" id="step" type="hidden" value="10" />
	<input type="submit" name="submit" value="Upgrade!" />
</form>
<?php
	} else {
		// Nothing to do here.
?>
<p>Installer page!</p>
<p>It looks like your system has already been installed and is up to date!</p>
<?php
	}
}
/**
 * We're done! Kill the database connection
 */
$db->disconnect();

/**
 * Sets the start time and returns the end time of the page execution. Located
 * in the index.php file so it can be run before any other operation.
 *
 * @global float $timerstart
 * @param bool $end
 * @return float
 */
function timer($end = false) {
	global $timerstart;
	$return = 0;
	$time = microtime(true);
	if ($end) {
		$return = $time - $timerstart;
	} else {
		$timerstart = $time;
		register_shutdown_function('timer', 'true');
		$return = $time;
	}
	return $return;
}

?>