package org.kuali.ole.deliver.controller.checkout;
   
   import org.apache.commons.collections.CollectionUtils;
   import org.kuali.ole.deliver.controller.PermissionsValidatorUtil;
   import org.kuali.ole.deliver.form.CircForm;
   import org.kuali.rice.krad.web.form.UifFormBase;
   import org.springframework.validation.BindingResult;
   import org.springframework.web.bind.annotation.ModelAttribute;
   import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * Created by hemalathas on 6/21/15.
   */
  public class CheckoutValidationController extends CheckoutPatronController {
  
      @RequestMapping(params = "methodToCall=validateOveridePermission")
      public ModelAndView validateOveridePermission(@ModelAttribute("KualiForm") UifFormBase form, BindingResult result,
                                                    HttpServletRequest request, HttpServletResponse response) throws Exception {
          CircForm circForm = (CircForm) form;
          boolean hasValidOverridePermissions = new PermissionsValidatorUtil().hasValidOverridePermissions(circForm);
          if(CollectionUtils.isEmpty(circForm.getErrorMessage().getPermissions())){
              return handleProxyPatronsIfExists(circForm, result, request, response);
          } else {
              if ((hasValidOverridePermissions)) {
                  if (circForm.isProxyCheckDone() && circForm.isItemValidationDone() && !circForm.isItemOverride() && !circForm.isRequestExistOrLoanedCheck()) {
                      circForm.getErrorMessage().clearErrorMessage();
                      return proceedToSaveLoan(circForm, result, request, response);
                  } else if (circForm.isItemOverride()) {
                      circForm.setItemOverride(false);
                      circForm.getErrorMessage().clearErrorMessage();
                      return proceedToSaveLoan(circForm, result, request, response);
                  }else if(circForm.isRequestExistOrLoanedCheck()){
                      circForm.setRequestExistOrLoanedCheck(false);
                      return proceedToValidateItemAndSaveLoan(circForm, result, request, response);
                  }
                  return handleProxyPatronsIfExists(circForm, result, request, response);
              } else {
                  circForm.setOverridingPrincipalName(null);
                  return showDialog("overrideMessageDialog", circForm, request, response);
              }
          }
      }
  }