/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
 *
 *   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.apache.fineract.cn.anubis.security;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;

import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * @author Myrle Krantz
 */
class AnubisAuthentication implements Authentication {

  private boolean authenticated;

  private final String token;
  private final String userIdentifier;
  private final String forApplicationName;
  private final String sourceApplicationName;
  private final Set<ApplicationPermission> applicationPermissions;

  AnubisAuthentication(final String token,
                       final String userIdentifier,
                       final String forApplicationName,
                       final String sourceApplicationName,
                       final Set<ApplicationPermission> applicationPermissions) {
    authenticated = true;

    this.token = token;
    this.userIdentifier = userIdentifier;
    this.forApplicationName = forApplicationName;
    this.sourceApplicationName = sourceApplicationName;
    this.applicationPermissions = Collections.unmodifiableSet(new HashSet<>(applicationPermissions));
  }

  @Override
  public Collection<? extends GrantedAuthority> getAuthorities() {
    return applicationPermissions;
  }

  @Override
  public Object getCredentials() {
    return token;
  }

  @Override
  public String getDetails() {
    return null;
  }

  @Override
  public AnubisPrincipal getPrincipal() {
    return new AnubisPrincipal(userIdentifier, forApplicationName, sourceApplicationName);
  }

  @Override
  public boolean isAuthenticated() {
    return this.authenticated;
  }

  @Override
  public void setAuthenticated(final boolean authenticated) throws IllegalArgumentException {
    this.authenticated = authenticated;
  }

  @Override
  public String getName() {
    return userIdentifier;
  }
}