/*
    * 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.metadata;
  
  import static java.util.Objects.requireNonNull;
  
  import com.fasterxml.jackson.annotation.JsonCreator;
  import com.fasterxml.jackson.annotation.JsonInclude;
  import com.fasterxml.jackson.annotation.JsonInclude.Include;
  import com.fasterxml.jackson.annotation.JsonProperty;
  import com.google.common.base.MoreObjects;
  
  import com.linecorp.centraldogma.common.ProjectRole;
  import com.linecorp.centraldogma.server.storage.repository.HasWeight;
  
  /**
   * Specifies a registration of a {@link Token}.
   */
  @JsonInclude(Include.NON_NULL)
  public class TokenRegistration implements Identifiable, HasWeight {
  
      /**
       * An application identifier which belongs to a {@link Token}.
       */
      private final String appId;
  
      /**
       * A role of the {@link Token} in a project.
       */
      private final ProjectRole role;
  
      /**
       * Specifies when the token is registered by whom.
       */
      private final UserAndTimestamp creation;
  
      /**
       * Creates a new instance.
       */
      @JsonCreator
      public TokenRegistration(@JsonProperty("appId") String appId,
                               @JsonProperty("role") ProjectRole role,
                               @JsonProperty("creation") UserAndTimestamp creation) {
          this.appId = requireNonNull(appId, "appId");
          this.role = requireNonNull(role, "role");
          this.creation = requireNonNull(creation, "creation");
      }
  
      @Override
      public String id() {
          return appId;
      }
  
      /**
       * Returns the ID of the application.
       */
      @JsonProperty
      public String appId() {
          return appId;
      }
  
      /**
       * Returns the role of the token in a project.
       */
      @JsonProperty
      public ProjectRole role() {
          return role;
      }
  
      /**
       * Returns who creates the token when.
       */
      @JsonProperty
      public UserAndTimestamp creation() {
          return creation;
      }
  
      @Override
      public int weight() {
          return appId.length() + role.name().length();
      }
  
      @Override
      public String toString() {
          return MoreObjects.toStringHelper(this)
                           .add("appId", appId())
                           .add("role", role())
                           .add("creation", creation())
                           .toString();
     }
 }