<?php
/**
 * WorkstationServices.API.php
 *
 * @package default
 */


include "IniFile.class.php";
class WorkstationServices {


	/**
	 *
	 * @return unknown
	 */
	function loadInst() {
		static $inst = null;

		if ($inst === null) {
			$inst = new self;
		}
		return $inst;
	}


	/**
	 *
	 */
	function API_Register() {
		apiql::register("!DESKTOP/!REMOVE/!SHORTCUT[json]", "WorkstationServices::RemoveDesktopFile");
		apiql::register("!DESKTOP/!CREATE/!SHORTCUT[json]", "WorkstationServices::CreateDesktopFile");
		apiql::register("!DESKTOP/!SET/!ICON[json]", "WorkstationServices::SetLauncherIcon");
		apiql::register("!STORAGE/!GET/!FREE/!SPACE[json]", "WorkstationServices::GetFreeSpace");
		apiql::register("!STORAGE/!GET/!TOTAL/!SPACE[json]", "WorkstationServices::GetStorageCapacity");
		apiql::register("!UPLOAD/!LOCAL/!RESOURCE[json]", "WorkstationServices::UploadResource");
		apiql::register("!DESKTOP/!CHANGE/!WALLPAPER[json]", "WorkstationServices::SetWallpaper");
	}


	/**
	 *
	 * @param unknown $sql
	 */
	function SetWallpaper($sql) {

	}


	/**
	 *
	 * @param unknown $sql
	 * @return unknown
	 */
	function SetLauncherIcon($sql) {
		$DesktopArray = $sql['ICON'];

		if (!file_exists("/home/phablet")) {
			$ErrorArray = array("response_type"=>"error", "error_msg"=>"This device is not an Ubuntu Touch workstation.", "error_code"=>505);
			return json_encode($ErrorArray);
		}

		if (!file_exists("/home/phablet/.local/share/applications/".$DesktopArray['name'].".desktop")) {
			$ErrorArray = array("response_type"=>"error", "error_msg"=>"Desktop File does not Exist.", "error_code"=>404);
			return json_encode($ErrorArray);
		}
		$desktop = IniFile::LoadFromFile("/home/phablet/.local/share/applications/".$DesktopArray['name'].".desktop");
		$desktop->SetKey("Desktop Entry", "Icon",$DesktopArray['icon']);
		$desktop->Save();
	}


	function UploadResource($sql) {
		$FileArray = $sql['RESOURCE'];
		$fileMD5 = $FileArray['MD5'];
		$fileContents = base64_decode($FileArray['contents']);
		$destination = $FileArray['dest'];

		// This code is ready for use, but inactive as ReactPHP does not have Filesystem I/O yet.
		//$filesystem = \React\Filesystem\Filesystem::create($loop);
		//$filesystem->file($destination)->open('cwt')->then(function ($stream) {
		//    $stream->end($fileContents);
		//});
		file_put_contents($destination, $fileContents);
		$MD5 = md5_file($destination);
		LogEcho("Uploaded MD5: ".$fileMD5.", Local MD5:".$MD5, "WorkstationServices");
		if ($MD5 != $fileMD5) {
			$ErrorArray = array("response_type"=>"error",
				"error_msg"=>"MD5 Checksums do not match. File may be corrupt.",
				"error_code"=>500);
			return json_encode($ErrorArray);
		} else {
			$ResponseArray = array("response_type"=>"success",
				"response_msg"=>"File uploaded successfully to ".$destination,
				"response_code"=>200);
			return json_encode($ResponseArray);
		}
	}


	function module_loaded() {
		self::API_Register();
		return true;
	}


	function GetFreeSpace($sql) {
		$resultArray = array("response_type"=>"success",
			"response_msg"=>disk_free_space($sql['SPACE']['volume']),
			"response_code"=>200);
		return json_encode($resultArray);
	}


	function GetStorageCapacity($sql) {
		$resultArray = array("response_type"=>"success",
			"response_msg"=>disk_total_space($sql['SPACE']['volume']),
			"response_code"=>200);
		return json_encode($resultArray);
	}


	function CreateDesktopFile($sql) {
		// Check for the existance of the requested .desktop file.

		$DesktopArray = $sql['SHORTCUT'];
		if (!file_exists("/usr/share/applications/".$DesktopArray['name'].".desktop")) {
			$ErrorArray = array("response_type"=>"error","error_msg"=>"Desktop File does not Exist.", "error_code"=>404);
			return json_encode($ErrorArray);
		}
		if (!file_exists("/home/phablet")) {
			$ErrorArray = array("response_type"=>"error", "error_msg"=>"This device is not an Ubuntu Touch workstation.", "error_code"=>505);
			return json_encode($ErrorArray);
		}
		copy("/usr/share/applications/".$DesktopArray['name'].".desktop", "/home/phablet/.local/share/applications/".$DesktopArray['name'].".desktop");
		$desktop = IniFile::LoadFromFile("/home/phablet/.local/share/applications/".$DesktopArray['name'].".desktop");
		$ExecLine = $desktop->GetKey("Desktop Entry","Exec");
		$ExecLine = "/home/phablet/bin/wm-wrapper " . $ExecLine;
		$desktop->SetKey("Desktop Entry", "Exec", $ExecLine);
		$desktop->SetKey("Desktop Entry", "X-Ubuntu-Touch", "true");
		$desktop->SetKey("Desktop Entry", "X-Ubuntu-XMir-Enable", "true");
		$desktop->Save();
		$ResultArray = array("response_type"=>"success", "response_msg"=>"Desktop file created successfully.", "response_code"=>200);
	}


	function RemoveDesktopFile($sql) {
		$DesktopArray = $sql['SHORTCUT'];
		unlink("/home/phablet/.local/share/applications/".$DesktopArray['name'].".desktop");
	}


}


?>