<?php
namespace elanpl\L3;
class Application{
public $Config; // L3 Config object
public $Request; // build from received HTTP request
public $Response; // response to be send
public $Router; // routing engine
public $Serialization; // serialization engine
public $BaseDirectory; // directory root of the application
public $ConfigDirectory; // directory containing application configuration files
public $ControllersDirectory; // subdirectory/namespace part added to controller class
public $ViewsDirectory; // subdirectory to search for the view files
public $ApplicationDirectory; // subdirectory/namespace part of the application
//public $Controller; //Active controller
//public $Module; //Active module
//public $Action; //Active action
public function __construct($config){
//set L3 application config
$this->Config = $config;
//create request object
$this->Request = $this->Config->getRequest();
//create router object
$this->Router = new Router($this->Config->getRouting());
//create response objcet
$this->Response = new Response();
//create serialization object
$this->Serialization = new Serialization();
}
public function basePath(){
return strstr($_SERVER['REQUEST_URI'], $this->Request->Path, true);
}
public function relPath($file){
return ($this->Router->depth>0 ? str_repeat("../", substr($this->Request->Path,-1)=='/'?$this->Router->depth:$this->Router->depth-1) : "" ).$file;
}
public function link($name, $parameters){
return $this->Router->link($name, $parameters);
}
public function LoadApplicationConfiguration(){
//include routing configuration
include_once($this->ConfigDirectory."routing.php");
//include the application configuration
include_once($this->ConfigDirectory.'app.php');
}
public function LoadConfigFile($file){
//include configuration file
return include_once($this->ConfigDirectory.$file);
}
public function IncludeFromConfigDir($file){
//include configuration file
return include($this->ConfigDirectory.$file);
}
/*
//not need - PSR-4 autoload handles that
function IncludeControler($Controller){
include_once(_L3_CONTROLLER_PATH.$Controller.'.php');
}*/
public function FindControllerInCallStack($search_level=5){
//search for controller, action and module if present
$controller = "";
$module = "";
$action = "";
$match = array();
//analize the call stack
$call_stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $search_level);
for($i=0; $i<$search_level; $i++){
if(preg_match(
$pattern = '#('.$this->ApplicationDirectory.')(\\\\(?P<module>.+))?\\\\'.$this->ControllersDirectory.'\\\\(?P<controller>.+)#',
$call_stack[$i]['class'],
$match
)
){
$action = $call_stack[$i]['function'];
$module = $match['module'];
$controller = $match['controller'];
break;
}
}
return array(
'module' => $module,
'controller' => $controller,
'action' => $action
);
}
function RunControllerAction($ControllerAction, $Parameters){
//prepare object and action name
/*
TODO ...
if(is_object($this->controler) && (is_a($this->controler,'L2_controler') || is_subclass_of($this->controler,'L2_controler'))){
if(is_string($this->action)){
$controler_object = $this->controler;
$controler_action = $this->action;
}
}
else if(is_string($this->controler)){
if(is_string($this->action)){
$this->includeControler($this->controler);
$controler_object = new $this->controler();
$controler_action = $this->action;
}
}*/
if(is_array($ControllerAction)){
//$this->IncludeControler($ControllerAction['controller']);
$controller_class = "\\".$this->ApplicationDirectory."\\"
.(isset($ControllerAction['module'])?$ControllerAction['module']."\\":"")
.$this->ControllersDirectory."\\"
.$ControllerAction['controller'];
$controller_object = new $controller_class;
$controller_action = $ControllerAction['action'];
}
//fire the action
if(isset($controller_object) && isset($controller_action)){
$this->Module = (isset($ControllerAction['module'])?$ControllerAction['module']:"");
$this->Controller = $ControllerAction['controller'];
$this->Action = $controller_action;
// prepare args and start the action
if(!isset($reflection)){
$reflection = new \ReflectionMethod($controller_object, $controller_action);
}
if($reflection->getNumberOfParameters()){
$fire_args=array();
foreach($reflection->getParameters() AS $arg)
{
if(isset($Parameters[$arg->name]) || (is_array($ControllerAction) && isset($ControllerAction['defaults'][$arg->name])))
if(isset($Parameters[$arg->name]))
$fire_args[$arg->name]=$Parameters[$arg->name];
else
$fire_args[$arg->name]=$ControllerAction['defaults'][$arg->name];
else
{
if($arg->isDefaultValueAvailable()){
$fire_args[$arg->name]=$arg->getDefaultValue();
}
else{
$fire_args[$arg->name]=null;
}
}
}
return $reflection->invokeArgs ($controller_object , $fire_args );
}
else{
return $reflection->invoke($controller_object);
}
}
}
public function HandleActionResult($result){
if(is_string($result)){
$content = $result;
}
else if(is_object($result)){
if($result instanceof ViewModel){
if($SerializationContentType = $this->Serialization->Match($this->Request->AcceptTypes, $result)){
$content = $this->Serialization->Serialize($SerializationContentType, $result);
if(is_object($content)){
if($content instanceof Response){
$this->Response = $content;
unset($content);
}
}
}
else{
echo "Serializer not defined for Content-Type: ".$this->Request->Accept."<br>".PHP_EOL;
throw new \Exception("Not implemented!");
}
}
else if($result instanceof View){
$content = $result->render();
}
else if($result instanceof Response){
$this->Response = $result;
}
}
if(isset($content))
$this->Response->withBody($content);
$this->Response->send();
}
public function BeforeAction(){
if(!empty($this->Router->RouteInfo->BeforeAction)){
foreach($this->Router->RouteInfo->BeforeAction as $event_handler){
$this->Router->RouteInfo::EventHandlerFormatCheck($event_handler, $eh);
if(isset($eh['class'])){
$object = new $eh['class'];
$reflection = new \ReflectionMethod($object, $eh['function']);
$fire_args = array();
$fire_args[] = $this->Request;
$fire_args[] = $this->Router->RouteInfo;
if(isset($eh['arguments'])){
$this->Router->RouteInfo::EventHandlerArgumentsFormatCheck($eh['arguments'], $args);
$fire_args = array_merge($fire_args, $args);
}
$result = $reflection->invokeArgs ($object , $fire_args );
}
else if (is_callable($eh['function'])){
throw new \Exception("Not implemented!");
}
if(isset($result)){
if(is_object($result)){
if($result instanceof Response){
$this->HandleActionResult($result);
exit();
}
}
}
}
}
}
public function Run(){
// Check if routing path is found
if($action = $this->Router->match($this->Request)){
// routing match found decide what to do next...
// BeforeAction event
$this->BeforeAction();
// function -> call it...
if(is_callable($action)){
$reflection = new \ReflectionFunction($action);
if($reflection->getNumberOfParameters()){
$fire_args=array();
foreach($reflection->getParameters() AS $arg)
{
if(isset($this->Router->parsedParameters[$arg->name]))
$fire_args[$arg->name]=$this->Router->parsedParameters[$arg->name];
else
$fire_args[$arg->name]=null;
}
$result = call_user_func_array($action, $fire_args);
}
else{
$result = call_user_func($action);
}
}
else if(is_object($action) && is_a($action, 'L2_controler_info')){
// not implemented yet.
throw new \Exception("Not implemented!");
///$action->runControlerAction($this->routing->param);
}
// array with controller, and action -> run the controller action
else if(is_array($action) && array_key_exists('controller',$action) && array_key_exists('action', $action)){
$result = $this->RunControllerAction($action, $this->Router->parsedParameters);
}
// string
else if(is_string($action)){
$result = $action;
}
// Handle the action result
if(isset($result)){
$this->HandleActionResult($result);
}
}
// routing path not found -> generate 404 response
else{
echo "Routing not found!<br>".PHP_EOL;
throw new \Exception("Not implemented!");
}
}
}