<?php
namespace Bitrix\Landing;

use \Bitrix\Main\Localization\Loc;
use \Bitrix\Main\Config\Option;
use \Bitrix\Main\Application;

Loc::loadMessages(__FILE__);

class Manager
{
	/**
	 * Selected template theme id.
	 * @var string
	 */
	private static $themeId = '';

	/**
	 * Get main instance of \CMain.
	 * @return \CMain
	 */
	public static function getApplication()
	{
		return $GLOBALS['APPLICATION'];
	}

	/**
	 * Get main instance of \CUser.
	 * @return \CUser
	 */
	public static function getUserInstance()
	{
		return $GLOBALS['USER'];
	}

	/**
	 * Get current user id.
	 * @return int
	 */
	public static function getUserId()
	{
		return self::getUserInstance()->getId();
	}

	/**
	 * Get option from module settings.
	 * @param string $code Option code.
	 * @param mixed $default Default value.
	 * @return type
	 */
	public static function getOption($code, $default = null)
	{
		return Option::get('landing', $code, $default);
	}

	/**
	 * Famous document root.
	 * @return string
	 */
	public static function getDocRoot()
	{
		static $docRoot = null;

		if ($docRoot === null)
		{
			$context = \Bitrix\Main\Application::getInstance()->getContext();
			$server = $context->getServer();
			$docRoot = $server->getDocumentRoot();
		}

		return $docRoot;
	}

	/**
	 * Get path for publication sites.
	 * @param string|int Site id or site code.
	 * @return string
	 */
	public static function getPublicationPath($siteCode)
	{
		$path = '/pub/site/#id#/';
		return str_replace('#id#', $siteCode, $path);
	}

	/**
	 * Add some class to some marker.
	 * @param string $marker Marker.
	 * @param string $class Class.
	 * @return void
	 */
	public static function setPageClass($marker, $class)
	{
		$class = trim($class);
		if ($class)
		{
			$application = self::getApplication();
			$existClass = $application->getPageProperty($marker);
			$application->setPageProperty(
				$marker,
				$existClass . ($existClass != '' ? ' ' : '') . $class
			);
		}
	}

	/**
	 * Get themes from template dir.
	 * @param string $tplId Site template id.
	 * @return array
	 */
	public static function getThemes($tplId)
	{
		$themes = array();

		$path = self::getDocRoot() . getLocalPath('templates/' . $tplId) . '/themes/';
		if (($handle = opendir($path)))
		{
			while ((($entry = readdir($handle)) !== false))
			{
				if ($entry != '.' && $entry != '..')
				{
					$themes[] = pathinfo($entry, PATHINFO_FILENAME);
				}
			}
		}

		return $themes;
	}

	/**
	 * Get site template id for landing view.
	 * @return string
	 */
	public static function getTemplateId()
	{
		static $tplId = null;

		if ($tplId === null)
		{
			$tplId = self::getOption('site_template_id', 'landing24');
		}

		return $tplId;
	}

	/**
	 * Set new colored theme id.
	 * @param string $themeId Theme id.
	 * @return void
	 */
	public static function setThemeId($themeId)
	{
		self::$themeId = $themeId;
	}

	/**
	 * Set current selected or default color theme.
	 * @return void
	 */
	public static function setTheme()
	{
		$tplId = self::getTemplateId();
		$themes = Manager::getThemes($tplId);

		if (
			!self::$themeId ||
			!in_array(self::$themeId, $themes)
		)
		{
			self::setThemeId(array_pop($themes));
		}

		if (self::$themeId)
		{
			$themePath = \getLocalPath('templates/' . $tplId, BX_PERSONAL_ROOT) . '/themes/' . self::$themeId;
			$themePathAbsolute = self::getDocRoot() . $themePath;
			if (is_dir($themePathAbsolute))
			{
				if ($handle = opendir($themePathAbsolute))
				{
					while (($file = readdir($handle)) !== false)
					{
						if ($file != '.' && $file != '..')
						{
							\Bitrix\Main\Page\Asset::getInstance()->addCSS($themePath . '/' . $file);
						}
					}
					closedir($handle);
				}
			}
			elseif (is_file($themePathAbsolute . '.css'))
			{
				\Bitrix\Main\Page\Asset::getInstance()->addCSS($themePath . '.css');
			}
		}
	}

	/**
	 * Save picture to db.
	 * @param mixed $file File array or path to file.
	 * @param string $ext File extension (if can't detected by file name).
	 * @param array $params Some file params.
	 * @return array|false Local file array or false on error.
	 */
	public static function savePicture($file, $ext = false, $params = array())
	{
		// url of picture
		if (!is_array($file))
		{
			$httpClient = new \Bitrix\Main\Web\HttpClient();
			$httpClient->setTimeout(5);
			$httpClient->setStreamTimeout(5);
			$urlComponents = parse_url($file);
			$dimensionDelta = 10;// delta for resize

			// detect tmp file name
			if ($urlComponents && $urlComponents['path'] != '')
			{
				$tempPath = \CFile::GetTempName('', bx_basename($urlComponents['path']));
			}
			else
			{
				$tempPath = \CFileGetTempName('', bx_basename($file));
			}
			if ($ext !== false && in_array($ext, explode(',', \CFile::GetImageExtensions())))
			{
				if (substr($tempPath, -3) != $ext)
				{
					$tempPath = $tempPath . '.' . $ext;
				}
			}

			// download and save
			if ($httpClient->download($file, $tempPath))
			{
				$fileName = $httpClient->getHeaders()->getFilename();
				$file = \CFile::MakeFileArray($tempPath);
				if ($file && $fileName)
				{
					$file['name'] = $fileName;
				}
				// resize if need
				if (
					isset($params['width']) &&
					isset($params['height'])
				)
				{
					$params['width'] += intval($params['width'] / 100 * $dimensionDelta);
					$params['height'] += intval($params['height'] / 100 * $dimensionDelta);
					\CFile::ResizeImage($file, $params);
				}
			}
		}

		// post array
		if (\CFile::CheckImageFile($file, 0, 0, 0, array('IMAGE')) === null)
		{
			$module = 'landing';
			$file['MODULE_ID'] = $module;
			$file = \CFile::SaveFile($file, $module);
			if ($file)
			{
				$file = \CFile::GetFileArray($file);
			}
			if ($file)
			{
				return $file;
			}
		}

		return false;
	}
}