/*
    * Copyright 2019 LINE Corporation
    *
    * LINE Corporation licenses this file to you 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:
    *
    *   https://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 com.linecorp.centraldogma.server.plugin;
  
  import static java.util.Objects.requireNonNull;
  
  import java.util.concurrent.ScheduledExecutorService;
  
  import com.linecorp.centraldogma.server.CentralDogmaConfig;
  import com.linecorp.centraldogma.server.command.Command;
  import com.linecorp.centraldogma.server.command.CommandExecutor;
  import com.linecorp.centraldogma.server.storage.project.Project;
  import com.linecorp.centraldogma.server.storage.project.ProjectManager;
  
  import io.micrometer.core.instrument.MeterRegistry;
  
  /**
   * A class which is used to pass internally-created instances into the {@link Plugin}.
   */
  public class PluginContext {
  
      private final CentralDogmaConfig config;
      private final ProjectManager projectManager;
      private final CommandExecutor commandExecutor;
      private final MeterRegistry meterRegistry;
      private final ScheduledExecutorService purgeWorker;
  
      /**
       * Creates a new instance.
       *
       * @param config the Central Dogma configuration
       * @param projectManager the instance which has the operations for the {@link Project}s
       * @param commandExecutor the executor which executes the {@link Command}s
       * @param meterRegistry the {@link MeterRegistry} of the Central Dogma server
       * @param purgeWorker the {@link ScheduledExecutorService} for the purging service
       */
      public PluginContext(CentralDogmaConfig config,
                           ProjectManager projectManager,
                           CommandExecutor commandExecutor,
                           MeterRegistry meterRegistry,
                           ScheduledExecutorService purgeWorker) {
          this.config = requireNonNull(config, "config");
          this.projectManager = requireNonNull(projectManager, "projectManager");
          this.commandExecutor = requireNonNull(commandExecutor, "commandExecutor");
          this.meterRegistry = requireNonNull(meterRegistry, "meterRegistry");
          this.purgeWorker = requireNonNull(purgeWorker, "purgeWorker");
      }
  
      /**
       * Returns the {@link CentralDogmaConfig}.
       */
      public CentralDogmaConfig config() {
          return config;
      }
  
      /**
       * Returns the {@link ProjectManager}.
       */
      public ProjectManager projectManager() {
          return projectManager;
      }
  
      /**
       * Returns the {@link CommandExecutor}.
       */
      public CommandExecutor commandExecutor() {
          return commandExecutor;
      }
  
      /**
       * Returns the {@link MeterRegistry}.
       */
      public MeterRegistry meterRegistry() {
          return meterRegistry;
      }
  
      /**
       * Returns the {@link ScheduledExecutorService} of {@code purgeWorker}.
       */
      public ScheduledExecutorService purgeWorker() {
          return purgeWorker;
      }
  }