<?php

class LocationInfoHooks
{

	/**
	 * @param string $uuid panel uuid
	 * @return false|string panel name if exists, false otherwise
	 */
	public static function getPanelName(string $uuid)
	{
		$ret = Database::queryFirst('SELECT panelname FROM locationinfo_panel WHERE paneluuid = :uuid', compact('uuid'));
		if ($ret === false)
			return false;
		return $ret['panelname'];
	}

	/**
	 * Hook called by runmode module where we should modify the client config according to our
	 * needs. Disable standby/logout timeouts, enable autologin, set URL.
	 */
	public static function configHook(string $machineUuid, string $panelUuid): void
	{
		$type = InfoPanel::getConfig($panelUuid, $data);
		if ($type === null)
			return; // TODO: Invalid panel - what should we do?
		if ($type === 'URL') {
			if ($data['reload-minutes'] > 0) {
				ConfigHolder::add('SLX_BROWSER_RELOAD_SECS', $data['reload-minutes'] * 60);
			}
			ConfigHolder::add('SLX_BROWSER_URL', $data['url']);
			LocationInfo::cleanupUrlFilter($data);
			ConfigHolder::add('SLX_BROWSER_WHITELIST', self::mangleList($data['whitelist']));
			ConfigHolder::add('SLX_BROWSER_BLACKLIST', self::mangleList($data['blacklist']));
			// Additionally, update runmode "isclient" flag depending on whether split-login is allowed or not
			if (isset($data['split-login']) && $data['split-login']) {
				RunMode::updateClientFlag($machineUuid, 'locationinfo', true);
			} else { // Automatic login
				RunMode::updateClientFlag($machineUuid, 'locationinfo', false);
				ConfigHolder::add('SLX_AUTOLOGIN', 'ON', 1000);
				ConfigHolder::add('SLX_ADDONS', '', 1000);
			}
			if (!empty($data['browser'])) {
				$browser = $data['browser'];
				if ($browser === 'chromium') {
					$browser = 'chromium chrome';
				} elseif ($browser === 'slx-browser') {
					$browser = 'slxbrowser slx-browser';
				}
				ConfigHolder::add('SLX_BROWSER', $browser, 1000);
				// There was probably some reason for this: When split-login is enabled, we force
				// an interactive browser  (full UI). I guess because some users might not
				// know how to exit the browser otherwise? Past me was stupid enough not to leave
				// a comment here or in the commit message....
				if ($data['split-login'] ?? false) {
					$data['interactive'] = true;
				}
			}
			// Check if we should enable insecure SSL mode (accept invalid/self-signed certs etc.),
			// if we should display the full UI, and whether we force HW acceleration for video playback
			$features = [
				'insecure-ssl' => 'SLX_BROWSER_INSECURE',
				'interactive' => 'SLX_BROWSER_INTERACTIVE',
				'hw-video' => 'SLX_BROWSER_HWVIDEO',
			];
			foreach ($features as $key => $var) {
				if ($data[$key] ?? false) {
					ConfigHolder::add($var, '1', 1000);
				}
			}
			if (!empty($data['bookmarks'])) {
				ConfigHolder::add('SLX_BROWSER_BOOKMARKS', $data['bookmarks'], 1000);
			}
			if ($data['allow-tty'] === 'yes' || $data['allow-tty'] === 'no') {
				ConfigHolder::add('SLX_TTY_SWITCH', $data['allow-tty'], 1000);
			}
			if (($data['zoom-factor'] ?? 100) != 100) {
				ConfigHolder::add('SLX_BROWSER_ZOOM', $data['zoom-factor']);
			}
		} else {
			// Not URL panel
			ConfigHolder::add('SLX_BROWSER_URL', 'http://' . $_SERVER['SERVER_ADDR'] . '/panel/' . $panelUuid);
			ConfigHolder::add('SLX_AUTOLOGIN', 'ON', 1000);
			ConfigHolder::add('SLX_ADDONS', '', 1000);
		}
		$al = ConfigHolder::get('SLX_AUTOLOGIN');
		if (!empty($al) && $al !== 'OFF' && $al != 0) {
			ConfigHolder::add('SLX_SHUTDOWN_TIMEOUT', '', 1000);
		}
		ConfigHolder::add('SLX_LOGOUT_TIMEOUT', '', 1000);
		ConfigHolder::add('SLX_SCREEN_STANDBY_TIMEOUT', '', 1000);
		ConfigHolder::add('SLX_SYSTEM_STANDBY_TIMEOUT', '', 1000);
	}

	/**
	 * Turn multiline list into space separated list, removing any
	 * comments (starting with #)
	 */
	private static function mangleList(string $list): string
	{
		return preg_replace('/\s*(#[^\n]*)?(\n|$)/', ' ', $list);
	}

}