/*
 * Copyright 2025 Hirokazu Kobayashi
 *
 * 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.idp.server.core.openid.plugin;

import java.util.List;
import org.idp.server.core.openid.authentication.plugin.AuthenticationDependencyContainer;
import org.idp.server.core.openid.authentication.plugin.AuthenticationDependencyProvider;
import org.idp.server.platform.dependency.ApplicationComponentDependencyContainer;
import org.idp.server.platform.dependency.ApplicationComponentProvider;
import org.idp.server.platform.log.LoggerWrapper;
import org.idp.server.platform.plugin.PluginLoader;

public class AuthenticationDependencyContainerPluginLoader extends PluginLoader {

  private static final LoggerWrapper log =
      LoggerWrapper.getLogger(AuthenticationDependencyContainerPluginLoader.class);

  public static AuthenticationDependencyContainer load() {
    return load(null);
  }

  public static AuthenticationDependencyContainer load(
      ApplicationComponentDependencyContainer appContainer) {
    AuthenticationDependencyContainer container = new AuthenticationDependencyContainer();

    List<AuthenticationDependencyProvider> internals =
        loadFromInternalModule(AuthenticationDependencyProvider.class);
    for (AuthenticationDependencyProvider<?> provider : internals) {
      Object instance = createInstance(provider, appContainer);
      container.register(provider.type(), instance);
      log.info(
          "Dynamic registered internal Authentication dependency provider: type={}",
          provider.type());
    }

    List<AuthenticationDependencyProvider> externals =
        loadFromExternalModule(AuthenticationDependencyProvider.class);
    for (AuthenticationDependencyProvider<?> provider : externals) {
      Object instance = createInstance(provider, appContainer);
      container.register(provider.type(), instance);
      log.info(
          "Dynamic registered external Authentication dependency provider: type={}",
          provider.type());
    }

    return container;
  }

  private static Object createInstance(
      AuthenticationDependencyProvider<?> provider,
      ApplicationComponentDependencyContainer appContainer) {
    if (provider instanceof ApplicationComponentProvider && appContainer != null) {
      return ((ApplicationComponentProvider<?>) provider).provide(appContainer);
    } else {
      return provider.provide();
    }
  }
}