<?php

class ContractconfigController extends mfBaseController {
  public $hook_errors;
  
  protected function init() {
    $this->needlogin=true;
    $me = new User();
    $me->loadMe();
    $this->me = $me;
    $this->layout()->set("me",$me);
    
    if(!$me->is(["Admin"])) {
      $this->redirect("Dashboard");
    }
  }
  
  protected function indexAction() {
    
  }
  
  protected function viewAction() {
    
  }
  
  protected function editAction() {
    $this->layout()->setTemplate("Contractconfig/Form");
    
    $contract_id = $this->request->contract_id;
    if(!$contract_id) {
      $this->layout()->setFlash("Contract ID nicht gefunden.","error");
      $this->redirect("Contract");
    }
    
    $contract = new Contract($contract_id);
    if(!$contract_id) {
      $this->layout()->setFlash("Contract ID nicht gefunden.","error");
      $this->redirect("Contract");
    }
    
    if(!is_array($contract->configgroups) || !count($contract->configgroups)) {
      $this->layout()->setFlash("Produkt hat keine Vertragsconfiggruppen hinterlegt.","info");
      $this->redirect("Contract", "View", ["id" => $contract_id]);
    }
    
    $this->layout()->set("contract", $contract);
    $this->layout()->set("groups", $contract->configgroups);
  }
  
  protected function saveAction() {
    $r = $this->request;
    $contract_id = $r->contract_id;
    
    if(!is_numeric($contract_id) || $contract_id < 1) {
      $this->layout()->setFlash("Contract ID nicht gefunden.","error");
      $this->redirect("Contract");
    }
    
    $contract = new Contract($contract_id);
    if(!$contract->id) {
      $this->layout()->setFlash("Contract ID nicht gefunden.","error");
      $this->redirect("Contract");
    }
    
    if(!is_array($r->itemvalues) || !count($r->itemvalues)) {
      $this->layout()->setFlash("Keine Änderungen.","info");
      $this->redirect("Contract");
    }
    
    $error_items = [];
    
    $old_values = [];
    
    foreach($r->itemvalues as $item_id => $itemvalue) {
      //var_dump($item_id, $itemvalue); continue;
      
      $item = new ContractconfigItem($item_id);
      if(!$item->id) {
        $this->log->warn("Tried to save non-existant ContractconfigItem $item_id");
        continue;
      }
      $item->setContractId($contract_id);
      
      /*if(!array_key_exists($item->name, $old_values)) {
        $old_values[$item->name] = [];
      }*/
      $old_values[$item->name] = $item->getValue();
      
      if(!$item->value->set($itemvalue)) {
        $error_items[$item->id] = $item->name;
        continue;
      }
      if(!$item->value->save()) {
        $this->layout()->set("request", $r);
        $this->layout()->setFlash("Fehler beim Speichern von".$item->name,"info");
        return $this->editAction();
      }
    }
    //exit;
    
    if(count($error_items)) {
      $this->layout()->set("error_items", array_keys($error_items));
      $this->layout()->set("request", $r);
      $this->layout()->setFlash("Konfiguration nicht vollständig gespeichert. Fehler in folgenden Feldern:\n<br />".implode(", ", $error_items), "warning");
      return $this->editAction();
    }
    
    // run custom productgroup hooks
    if(!$this->runAfterSaveHooks($contract)) {
      $errors = [];
      foreach($this->hook_errors as $item_name => $item_errors) {
        if(is_array($item_errors) && count($item_errors)) {
          foreach($item_errors as $error_string) {
            $errors[] = "[$item_name] $error_string";
          }
          //var_dump($old_values[$item_name]);
          // on error restore old values
          if(array_key_exists($item_name, $old_values)) {
            $old_item = ContractconfigItemModel::getFirst(["name" => $item_name]);
            $old_item->setContractId($contract_id);
            $old_item->value->set($old_values[$item_name]);
            $old_item->value->save();
            //var_dump($old_item->value->json);exit;
          }
          
        }
        
      }
      //var_dump($errors);exit;
      
      
      $this->layout()->setFlash(implode("<br />", $errors), "error");
      $this->redirect("Contract", "view", ['id' => $contract_id]);
    }
    
    $this->layout()->setFlash("Konfiguration gespeichert", "success");
    $this->redirect("Contract", "view", ['id' => $contract_id]);
    
  }
  
  private function runAfterSaveHooks(Contract $contract) {
    if(!$contract || !$contract->id) {
      return false;
    }
    
    $folderpath = APPDIR."/Contractconfig/hooks/";
    $dir = opendir($folderpath);
    while($filename = readdir($dir)) {
      if(substr($filename, 0, 1) == ".") {
        continue;
      }
      if($filename == "Contractconfig_Hook.php") continue;
      if(substr($filename, -4) != ".php") continue;
      
      $hook_type = basename($filename, ".php");
      $classname = "Contractconfig_Hook_$hook_type";
      $hook_class_filename = $folderpath.$filename;
      require_once $hook_class_filename;
      
      if(!class_exists($classname)) {
        continue;
      }
      
      $hook = new $classname($contract);
      if($hook->isResponsible()) {
        $this->log->debug("Running {$classname}->afterSave() for Contract id ".$contract->id);
        $hook->afterSave();
        if($hook->errors) {
          $this->hook_errors = $hook->errors;
          return false;
        }
      }
    }
    
    return true;
  }
  
  
}