// Copyright (C) 2015 The Android Open Source Project
//
// 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 com.googlesource.gerrit.plugins.oauth;

import com.google.gerrit.extensions.annotations.Exports;
import com.google.gerrit.extensions.annotations.PluginName;
import com.google.gerrit.extensions.auth.oauth.OAuthServiceProvider;
import com.google.gerrit.httpd.plugins.HttpPluginModule;
import com.google.gerrit.server.config.PluginConfig;
import com.google.gerrit.server.config.PluginConfigFactory;
import com.google.inject.Inject;

class HttpModule extends HttpPluginModule {

  private final PluginConfigFactory cfgFactory;
  private final String pluginName;

  @Inject
  HttpModule(PluginConfigFactory cfgFactory,
      @PluginName String pluginName) {
    this.cfgFactory = cfgFactory;
    this.pluginName = pluginName;
  }

  @Override
  protected void configureServlets() {
    PluginConfig cfg = cfgFactory.getFromGerritConfig(
        pluginName + GoogleOAuthService.CONFIG_SUFFIX);
    if (cfg.getString(InitOAuth.CLIENT_ID) != null) {
      bind(OAuthServiceProvider.class)
          .annotatedWith(Exports.named(GoogleOAuthService.CONFIG_SUFFIX))
          .to(GoogleOAuthService.class);
    }

    cfg = cfgFactory.getFromGerritConfig(
        pluginName + GitHubOAuthService.CONFIG_SUFFIX);
    if (cfg.getString("client-id") != null) {
      bind(OAuthServiceProvider.class)
          .annotatedWith(Exports.named(GitHubOAuthService.CONFIG_SUFFIX))
          .to(GitHubOAuthService.class);
    }

    cfg = cfgFactory.getFromGerritConfig(
        pluginName + BitbucketOAuthService.CONFIG_SUFFIX);
    if (cfg.getString(InitOAuth.CLIENT_ID) != null) {
      bind(OAuthServiceProvider.class)
          .annotatedWith(Exports.named(BitbucketOAuthService.CONFIG_SUFFIX))
          .to(BitbucketOAuthService.class);
    }

    cfg = cfgFactory.getFromGerritConfig(
        pluginName + CasOAuthService.CONFIG_SUFFIX);
    if (cfg.getString(InitOAuth.CLIENT_ID) != null) {
      bind(OAuthServiceProvider.class)
          .annotatedWith(Exports.named(CasOAuthService.CONFIG_SUFFIX))
          .to(CasOAuthService.class);
    }

    cfg = cfgFactory.getFromGerritConfig(pluginName
        + FacebookOAuthService.CONFIG_SUFFIX);
    if (cfg.getString(InitOAuth.CLIENT_ID) != null) {
      bind(OAuthServiceProvider.class).annotatedWith(
          Exports.named(FacebookOAuthService.CONFIG_SUFFIX)).to(
          FacebookOAuthService.class);
    }

    cfg = cfgFactory.getFromGerritConfig(
       pluginName + GitLabOAuthService.CONFIG_SUFFIX);
    if (cfg.getString(InitOAuth.CLIENT_ID) != null) {
      bind(OAuthServiceProvider.class)
          .annotatedWith(Exports.named(GitLabOAuthService.CONFIG_SUFFIX))
          .to(GitLabOAuthService.class);
    }
  }
}