/*
    * Copyright 2012-2025 CodeLibs Project and the Others.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied. See the License for the specific language
   * governing permissions and limitations under the License.
   */
  package org.codelibs.fess.app.web.admin.group;
  
  import java.util.Base64;
  import java.util.Map;
  import java.util.function.Consumer;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.codelibs.fess.Constants;
  import org.codelibs.fess.annotation.Secured;
  import org.codelibs.fess.app.pager.GroupPager;
  import org.codelibs.fess.app.service.GroupService;
  import org.codelibs.fess.app.web.CrudMode;
  import org.codelibs.fess.app.web.base.FessAdminAction;
  import org.codelibs.fess.mylasta.action.FessMessages;
  import org.codelibs.fess.opensearch.user.exentity.Group;
  import org.codelibs.fess.util.ComponentUtil;
  import org.codelibs.fess.util.RenderDataUtil;
  import org.dbflute.optional.OptionalEntity;
  import org.dbflute.optional.OptionalThing;
  import org.lastaflute.web.Execute;
  import org.lastaflute.web.response.HtmlResponse;
  import org.lastaflute.web.response.render.RenderData;
  import org.lastaflute.web.ruts.process.ActionRuntime;
  import org.lastaflute.web.validation.VaMessenger;
  
  import jakarta.annotation.Resource;
  
  /**
   * Admin action for Group management.
   *
   */
  public class AdminGroupAction extends FessAdminAction {
  
      /**
       * Default constructor.
       */
      public AdminGroupAction() {
          super();
      }
  
      /** The role name for group administration. */
      public static final String ROLE = "admin-group";
  
      /** Logger for this class. */
      private static final Logger logger = LogManager.getLogger(AdminGroupAction.class);
  
      // ===================================================================================
      //                                                                           Attribute
      //                                                                           =========
      /** Service for group operations. */
      @Resource
      private GroupService groupService;
  
      /** Pager for group list pagination. */
      @Resource
      private GroupPager groupPager;
  
      // ===================================================================================
      //                                                                               Hook
      //                                                                              ======
      /**
       * Sets up HTML data for rendering, including help link.
       *
       * @param runtime the action runtime
       */
      @Override
      protected void setupHtmlData(final ActionRuntime runtime) {
          super.setupHtmlData(runtime);
          runtime.registerData("helpLink", systemHelper.getHelpLink(fessConfig.getOnlineHelpNameGroup()));
      }
  
      /**
       * Returns the action role for this admin action.
       *
       * @return the role name
       */
      @Override
      protected String getActionRole() {
          return ROLE;
      }
  
      // ===================================================================================
      //                                                                      Search Execute
     //                                                                      ==============
     /**
      * Displays the group list page.
      *
      * @return HTML response for the list page
      */
     @Execute
     @Secured({ ROLE, ROLE + VIEW })
     public HtmlResponse index() {
         return asListHtml();
     }
 
     /**
      * Displays the group list with pagination.
      *
      * @param pageNumber the page number
      * @param form the search form
      * @return HTML response for the list page
      */
     @Execute
     @Secured({ ROLE, ROLE + VIEW })
     public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
         pageNumber.ifPresent(num -> {
             groupPager.setCurrentPageNumber(pageNumber.get());
         }).orElse(() -> {
             groupPager.setCurrentPageNumber(0);
         });
         return asHtml(path_AdminGroup_AdminGroupJsp).renderWith(data -> {
             searchPaging(data, form);
         });
     }
 
     /**
      * Searches groups based on the form criteria.
      *
      * @param form the search form
      * @return HTML response for the search results
      */
     @Execute
     @Secured({ ROLE, ROLE + VIEW })
     public HtmlResponse search(final SearchForm form) {
         copyBeanToBean(form, groupPager, op -> op.exclude(Constants.PAGER_CONVERSION_RULE));
         return asHtml(path_AdminGroup_AdminGroupJsp).renderWith(data -> {
             searchPaging(data, form);
         });
     }
 
     /**
      * Resets the search criteria and displays the default list.
      *
      * @param form the search form
      * @return HTML response for the reset list
      */
     @Execute
     @Secured({ ROLE, ROLE + VIEW })
     public HtmlResponse reset(final SearchForm form) {
         groupPager.clear();
         return asHtml(path_AdminGroup_AdminGroupJsp).renderWith(data -> {
             searchPaging(data, form);
         });
     }
 
     /**
      * Sets up data for search result pagination.
      *
      * @param data the render data
      * @param form the search form
      */
     protected void searchPaging(final RenderData data, final SearchForm form) {
         RenderDataUtil.register(data, "groupItems", groupService.getGroupList(groupPager)); // page navi
 
         // restore from pager
         copyBeanToBean(groupPager, form, op -> op.include("id"));
     }
 
     // ===================================================================================
     //                                                                        Edit Execute
     //                                                                        ============
     // -----------------------------------------------------
     //                                            Entry Page
     //                                            ----------
     /**
      * Displays the create new group page.
      *
      * @return HTML response for the create page
      */
     @Execute
     @Secured({ ROLE })
     public HtmlResponse createnew() {
         saveToken();
         return asHtml(path_AdminGroup_AdminGroupEditJsp).useForm(CreateForm.class, op -> {
             op.setup(form -> {
                 form.initialize();
                 form.crudMode = CrudMode.CREATE;
             });
         });
     }
 
     /**
      * Displays the edit group page.
      *
      * @param form the edit form
      * @return HTML response for the edit page
      */
     @Execute
     @Secured({ ROLE })
     public HtmlResponse edit(final EditForm form) {
         validate(form, messages -> {}, this::asListHtml);
         final String id = form.id;
         groupService.getGroup(id).ifPresent(entity -> {
             copyBeanToBean(entity, form, op -> {});
         }).orElse(() -> {
             throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
         });
         saveToken();
         if (form.crudMode.intValue() == CrudMode.EDIT) {
             // back
             form.crudMode = CrudMode.DETAILS;
             return asDetailsHtml();
         }
         form.crudMode = CrudMode.EDIT;
         return asEditHtml();
     }
 
     // -----------------------------------------------------
     //                                               Details
     //                                               -------
     /**
      * Displays the group details page.
      *
      * @param crudMode the CRUD mode
      * @param id the group ID
      * @return HTML response for the details page
      */
     @Execute
     @Secured({ ROLE, ROLE + VIEW })
     public HtmlResponse details(final int crudMode, final String id) {
         verifyCrudMode(crudMode, CrudMode.DETAILS, this::asListHtml);
         saveToken();
         return asHtml(path_AdminGroup_AdminGroupDetailsJsp).useForm(EditForm.class, op -> {
             op.setup(form -> {
                 groupService.getGroup(id).ifPresent(entity -> {
                     copyBeanToBean(entity, form, copyOp -> {
                         copyOp.excludeNull();
                     });
                     form.crudMode = crudMode;
                 }).orElse(() -> {
                     throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asListHtml);
                 });
             });
         });
     }
 
     // -----------------------------------------------------
     //                                         Actually Crud
     //                                         -------------
     /**
      * Creates a new group.
      *
      * @param form the create form
      * @return HTML response after creation
      */
     @Execute
     @Secured({ ROLE })
     public HtmlResponse create(final CreateForm form) {
         verifyCrudMode(form.crudMode, CrudMode.CREATE, this::asListHtml);
         validate(form, messages -> {}, this::asEditHtml);
         validateAttributes(form.attributes, v -> throwValidationError(v, this::asEditHtml));
         verifyToken(this::asEditHtml);
         getGroup(form).ifPresent(entity -> {
             try {
                 groupService.store(entity);
                 saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
                 logger.info("Created group: {}", entity.getName());
             } catch (final Exception e) {
                 logger.warn("Failed to create group: {}", form.name, e);
                 throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                         this::asEditHtml);
             }
         }).orElse(() -> {
             throwValidationError(messages -> messages.addErrorsCrudFailedToCreateInstance(GLOBAL), this::asEditHtml);
         });
         return redirect(getClass());
     }
 
     /**
      * Updates an existing group.
      *
      * @param form the edit form
      * @return HTML response after update
      */
     @Execute
     @Secured({ ROLE })
     public HtmlResponse update(final EditForm form) {
         verifyCrudMode(form.crudMode, CrudMode.EDIT, this::asListHtml);
         validate(form, messages -> {}, this::asEditHtml);
         validateAttributes(form.attributes, v -> throwValidationError(v, this::asEditHtml));
         verifyToken(this::asEditHtml);
         getGroup(form).ifPresent(entity -> {
             try {
                 groupService.store(entity);
                 saveInfo(messages -> messages.addSuccessCrudUpdateCrudTable(GLOBAL));
                 logger.info("Updated group: {}", entity.getName());
             } catch (final Exception e) {
                 logger.warn("Failed to update group: {}", form.name, e);
                 throwValidationError(messages -> messages.addErrorsCrudFailedToUpdateCrudTable(GLOBAL, buildThrowableMessage(e)),
                         this::asEditHtml);
             }
         }).orElse(() -> {
             throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, form.id), this::asEditHtml);
         });
         return redirect(getClass());
     }
 
     /**
      * Deletes a group.
      *
      * @param form the edit form
      * @return HTML response after deletion
      */
     @Execute
     @Secured({ ROLE })
     public HtmlResponse delete(final EditForm form) {
         verifyCrudMode(form.crudMode, CrudMode.DETAILS, this::asListHtml);
         validate(form, messages -> {}, this::asDetailsHtml);
         verifyToken(this::asDetailsHtml);
         final String id = form.id;
         groupService.getGroup(id).ifPresent(entity -> {
             try {
                 groupService.delete(entity);
                 saveInfo(messages -> messages.addSuccessCrudDeleteCrudTable(GLOBAL));
                 logger.info("Deleted group: {}", entity.getName());
             } catch (final Exception e) {
                 logger.warn("Failed to delete group: {}", form.name, e);
                 throwValidationError(messages -> messages.addErrorsCrudFailedToDeleteCrudTable(GLOBAL, buildThrowableMessage(e)),
                         this::asDetailsHtml);
             }
         }).orElse(() -> {
             throwValidationError(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id), this::asDetailsHtml);
         });
         return redirect(getClass());
     }
 
     // ===================================================================================
     //                                                                        Assist Logic
     //                                                                        ============
     /**
      * Gets a group entity based on the form.
      *
      * @param form the create form
      * @return optional group entity
      */
     private static OptionalEntity<Group> getEntity(final CreateForm form) {
         switch (form.crudMode) {
         case CrudMode.CREATE:
             return OptionalEntity.of(new Group()).map(entity -> {
                 entity.setId(Base64.getUrlEncoder().encodeToString(form.name.getBytes(Constants.CHARSET_UTF_8)));
                 return entity;
             });
         case CrudMode.EDIT:
             if (form instanceof EditForm) {
                 return ComponentUtil.getComponent(GroupService.class).getGroup(((EditForm) form).id);
             }
             break;
         default:
             break;
         }
         return OptionalEntity.empty();
     }
 
     /**
      * Gets a group entity from the form with attributes.
      *
      * @param form the create form
      * @return optional group entity
      */
     public static OptionalEntity<Group> getGroup(final CreateForm form) {
         return getEntity(form).map(entity -> {
             copyMapToBean(form.attributes, entity, op -> op.exclude(Constants.COMMON_CONVERSION_RULE));
             copyBeanToBean(form, entity, op -> op.exclude(Constants.COMMON_CONVERSION_RULE));
             return entity;
         });
     }
 
     // ===================================================================================
     //                                                                        Small Helper
     //                                                                        ============
 
     /**
      * Validates group attributes using LDAP manager.
      *
      * @param attributes the attributes to validate
      * @param throwError the error handler
      */
     public static void validateAttributes(final Map<String, String> attributes, final Consumer<VaMessenger<FessMessages>> throwError) {
         ComponentUtil.getLdapManager()
                 .validateGroupAttributes(Long.class, attributes,
                         s -> throwError.accept(messages -> messages.addErrorsPropertyTypeLong("attributes." + s, "attributes." + s)));
     }
 
     // ===================================================================================
     //                                                                              JSP
     //                                                                           =========
 
     /**
      * Returns HTML response for the list page.
      *
      * @return HTML response for the list page
      */
     private HtmlResponse asListHtml() {
         return asHtml(path_AdminGroup_AdminGroupJsp).renderWith(data -> {
             RenderDataUtil.register(data, "groupItems", groupService.getGroupList(groupPager)); // page navi
         }).useForm(SearchForm.class, setup -> {
             setup.setup(form -> {
                 copyBeanToBean(groupPager, form, op -> op.include("id"));
             });
         });
     }
 
     /**
      * Returns HTML response for the edit page.
      *
      * @return HTML response for the edit page
      */
     private HtmlResponse asEditHtml() {
         return asHtml(path_AdminGroup_AdminGroupEditJsp);
     }
 
     /**
      * Returns HTML response for the details page.
      *
      * @return HTML response for the details page
      */
     private HtmlResponse asDetailsHtml() {
         return asHtml(path_AdminGroup_AdminGroupDetailsJsp);
     }
 }