<?php

  class mw_env_run extends mw_env{

    var $etat;

    function user(){
      $data = $this->data();
      return $data->get_session_user();
    }

    function set_etat($etat, $valid_status = true){
      if(($this->etat = $this->valid_etat($etat)) !== false){
        if(!$valid_status || $this->status_ok($this->etat, false)){
          return $this->etat;
        }
        else $this->erreur("Vous n'avez pas le statut requis pour effectuer cette action");
      }
      else $this->erreur("etat invalide");
      return false;
    }

    function valid_etat($etat){
      $_etat = array();
      $_etat["mod"] = "";
      $_etat["controller"] = "";
      $_etat["action"] = "";
      if(is_array($etat)){
        $_etat["mod"] = isset($etat["mod"]) ? $etat["mod"] : "";
        $_etat["controller"] = isset($etat["controller"]) ? $etat["controller"] : "";
        $_etat["action"] = isset($etat["action"]) ? $etat["action"] : "";
      }
      else{
        $etat = explode("/", $etat);
        foreach($etat as $etat_item){
          if($etat_item){
            if(!$_etat["mod"]) $_etat["mod"] = $etat_item;
            else{
              if(!$_etat["controller"]) $_etat["controller"] = $etat_item;
              else{
                if(!$_etat["action"]) $_etat["action"] = $etat_item;
                break;
              }
            }
          }
        }
      }
      if(!$_etat["mod"]){
        $_etat["mod"] = "index";
        $_etat["controller"] = "index";
        $_etat["action"] = "index";
      }
      else{
        if(!$_etat["controller"]){
          $_etat["controller"] = "index";
          $_etat["action"] = "index";
        }
        else{
          if(!$_etat["action"]) $_etat["action"] = "index";
        }
      }
      if(
           is_array($_etat)
        && count($_etat) == 3
        && isset($_etat["mod"]) && preg_match("/^[a-zA-Z0-9_]+$/", $_etat["mod"])
        && isset($_etat["controller"]) && preg_match("/^[a-zA-Z0-9_]+$/", $_etat["controller"])
        && isset($_etat["action"]) && preg_match("/^[a-zA-Z0-9_]+$/", $_etat["action"])
      ){
        return $_etat;
      }
      return false;
    }

    function etat_is_valid(){
      return $this->valid_etat($this->etat);
    }

    function status_ok($etat, $CHECK_FORMAT = true){
      $data = $this->data();
      if($CHECK_FORMAT) $etat = $this->valid_etat($etat);
      if($etat === false){
        $this->erreur("etat invalide");
        return false;
      }
      if(($user_status = $data->get_user_status()) === false){
        $this->erreur("Impossible de lire les roles de l'utilisateur courant");
        return false;
      }
      if(!$user_status){
        $this->erreur("L'utilisateur courant n'a aucun role");
        return false;
      }
      if(
        (
          $action_status = $data->get_action_status(
            $etat["mod"],
            $etat["controller"],
            $etat["action"]
          )
        ) === false
      ){
        $this->erreur("Impossible de lire les status des actions en base");
        return false;
      }
      foreach($user_status as $id_role){
        $OK = $this->config("default_allow");
        $action = $etat["mod"];
        if(isset($action_status[$action])){
          $OK =
               (isset($action_status[$action][0]) && $action_status[$action][0])
            || (isset($action_status[$action][$id_role]) && $action_status[$action][$id_role]);
        }
        if(!$OK){
          $action = $etat["mod"]."/".$etat["controller"];
          if(isset($action_status[$action])){
            $OK =
                 (isset($action_status[$action][0]) && $action_status[$action][0])
              || (isset($action_status[$action][$id_role]) && $action_status[$action][$id_role]);
          }
        }
        if(!$OK){
          $action = $etat["mod"]."/".$etat["controller"]."/".$etat["action"];
          if(isset($action_status[$action])){
            $OK =
                 (isset($action_status[$action][0]) && $action_status[$action][0])
              || (isset($action_status[$action][$id_role]) && $action_status[$action][$id_role]);
          }
        }
        if($OK) break;
      }
      return $OK;
    }

    function run($etat, $valid_status = true, $params = array(), $method = "GET"){
      if($this->set_etat($etat, $valid_status)){
        $controller_file = "mods/".$this->etat("mod")."/".$this->etat("controller").".php";
        if($this->app_file_exists($controller_file = "mods/".$this->etat("mod")."/".$this->etat("controller").".php", "DESC")){
          if(!class_exists("mw_mod")) require $this->app_file("mods/mw_mod.php");
          if(!class_exists($controller_class = "mw_".$this->etat("mod")."_".$this->etat("controller"))){
            require $this->app_file($controller_file, "DESC");
          }
          if(class_exists($controller_class)){
            $controller = new $controller_class();
            $action_method = $this->etat("action");
            if(method_exists($controller, $action_method)){
              foreach($params as $key => $value){
                switch(strtolower($method)){
                  case "get": $_GET[$this->param($key)] = $value; break;
                  case "post": $_POST[$key] = $value; break;
                  default: break;
                }
              }
              if(($controller_validate = $controller->validate($this)) === true){
                if(($controller_prepare_inputs = $controller->prepare_inputs($this)) === true){
                  $controller->$action_method($this);
                }
                else $this->erreur($controller_prepare_inputs);
              }
              else $this->erreur($controller_validate);
            }
            else $this->erreur("Impossible de trouver l'action ".$this->etat("action"));
          }
          else $this->erreur("Impossible d'instancier le controleur ".$this->etat("controller"));
        }
        else $this->erreur("Impossible de trouver le controleur ".$this->etat("controller")." pour le module ".$this->etat("mod"));
      }
      else $this->erreur("Impossible d'effectuer cette action");
    }

    function etat($name){
      return $this->etat[$name];
    }

    function check_stop(){
      return $this->etat("mod") == "reponses";
    }

    function get_mod($mod_name){
      if($etat = $this->valid_etat($mod_name)){
        if($this->app_file_exists($controller_file = "mods/".$etat["mod"]."/".$etat["controller"].".php")){
          if(!class_exists("mw_mod")) require $this->app_file("mods/mw_mod.php");
          if(!class_exists($controller_class = "mw_".$etat["mod"]."_".$etat["controller"])){
            require $this->app_file($controller_file);
          }
          if(class_exists($controller_class)){
            return new $controller_class();
          }
        }
      }
      return false;
    }

  }

?>