<?php

abstract class Controller {
    
    /**
     * calls the module action on the module view with module parameters
     */
    public function process() {
        
        # get view
        $viewObject = RootController::getModuleView();
        
        # get action
        $viewMethodName = RootController::getModuleAction();
        $viewMethodParameters = RootController::getModuleParameters();
        
        # call view-action
        $output = call_user_func_array(array($viewObject, $viewMethodName), $viewMethodParameters);
        
        # print to stdout
        return $output;
    }
    
    public static function processSubmit($action, $moduleName, $model) {
        # create
        if ($action == 'create') {
            #if (isset($_REQUEST['submit'.ucfirst($moduleName)])) {
            if (isset($_REQUEST['submitSave'])) {
                $invalidFields = Model::getInvalidFields($model, $_REQUEST);
                if (count($invalidFields) == 0) {
                    $insertId = $model->insert($_REQUEST);
                    if ($insertId === false) {
                        message::addMessage(_('Anlegen des Eintrags fehlgeschlagen.'), message::TYPE_ERROR);
                        $_SESSION['request'] = $_REQUEST;
                        Helper::redirect($_SESSION['desiredUrl'], true);
                    } else {
                        message::addMessage(_('Eintrag erfolgreich angelegt.'), message::TYPE_INFO);
                        helper::redirect($_SERVER['PHP_SELF'].'?mod='.$moduleName.'&ap='.$insertId, true);
                    }
                } else {
                    message::addMessage(_('Ungültige Eingaben.'), message::TYPE_ERROR);
                    $_SESSION['request'] = $_REQUEST;
                    $_SESSION['invalidFields'] = $invalidFields;
                    Helper::redirect($_SESSION['desiredUrl'], true);
                }
            }
        }
        # update
        else if ($action == 'edit') {
            #if (isset($_REQUEST['submit'.ucfirst($moduleName)])) {
            if (isset($_REQUEST['submitSave'])) {
                $invalidFields = Model::getInvalidFields($model, $_REQUEST);
                if (count($invalidFields) == 0) {
                    $result = $model->update($_REQUEST);
                    if ($result === false) {
                        message::addMessage(_('Aktualisierung des Eintrags fehlgeschlagen.'), message::TYPE_ERROR);
                        Helper::redirect($_SESSION['desiredUrl'], true);
                    } else {
                        message::addMessage(_('Eintrag erfolgreich aktualisiert.'), message::TYPE_INFO);
                        helper::redirect($_SERVER['PHP_SELF'].'?mod='.$moduleName.'&ap='.$_REQUEST['id'], true);
                    }
                    #helper::redirect($_SERVER['PHP_SELF'].'?mod='.$moduleName.'s', true);
                } else {
                    message::addMessage(_('Ungültige Eingaben.'), message::TYPE_ERROR);
                    $_SESSION['request'] = $_REQUEST;
                    $_SESSION['invalidFields'] = $invalidFields;
                    Helper::redirect($_SESSION['desiredUrl'], true);
                }
            }
        }
        # unconfirmed delete
        if (isset($_REQUEST['confirmDelete'])) {
            $id = RootController::getModuleParameter(0);
            $text = _('Soll der Eintrag wirklich gelöcht werden?').'&nbsp;';
            $linkYes = $_SERVER['PHP_SELF'].'?mod='.$moduleName.'&action=delete&ap='.$id.'&deleteConfirmed';
            $text .= '<form action="'.$linkYes.'" method="post" onsubmit="return _stdonsubmit();" style="display: inline;"><input type="submit" name="submit" value="'._('Ja').'" /></form>';
            $text .= '&nbsp;';
            $linkNo = $_SERVER['PHP_SELF'].'?mod='.$moduleName.'&a='.RootController::getModuleAction().'&ap='.$id;
            $text .= '<form action="'.$linkNo.'" method="post" onsubmit="return _stdonsubmit();" style="display: inline;"><input type="submit" name="submit" value="'._('Nein').'" /></form>';
            message::addMessage($text, message::TYPE_ERROR);
            helper::redirect($_SERVER['PHP_SELF'].'?mod='.$moduleName.'&a='.$action.'&ap='.$id, true);
        }
        # confirmed delete
        else if (isset($_REQUEST['deleteConfirmed']))  {
            $id = RootController::getModuleParameter(0);
            $result = $model->delete($id);
            if ($result === false) {
                message::addMessage(_('Löschen des Eintrags fehlgeschlagen.'), message::TYPE_ERROR);
            } else {
                message::addMessage(_('Eintrag erfolgreich gelöscht.'), message::TYPE_INFO);
            }
            helper::redirect($_SERVER['PHP_SELF'].'?mod='.$moduleName.'s', true);
        }
    }
}