// 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.verifystatus;

import static com.google.gerrit.server.change.RevisionResource.REVISION_KIND;
import static com.google.gerrit.server.config.ConfigResource.CONFIG_KIND;
import static com.google.inject.Scopes.SINGLETON;

import com.google.gerrit.extensions.annotations.Exports;
import com.google.gerrit.extensions.config.CapabilityDefinition;
import com.google.gerrit.extensions.config.FactoryModule;
import com.google.gerrit.extensions.restapi.RestApiModule;
import com.google.gerrit.lifecycle.LifecycleModule;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Key;
import com.google.inject.Module;
import com.google.inject.name.Names;
import com.googlesource.gerrit.plugins.verifystatus.server.GetConfig;
import com.googlesource.gerrit.plugins.verifystatus.server.GetVerifications;
import com.googlesource.gerrit.plugins.verifystatus.server.PutConfig;
import com.googlesource.gerrit.plugins.verifystatus.server.schema.CiDataSourceModule;
import com.googlesource.gerrit.plugins.verifystatus.server.schema.CiDataSourceProvider;
import com.googlesource.gerrit.plugins.verifystatus.server.schema.CiDataSourceType;
import com.googlesource.gerrit.plugins.verifystatus.server.schema.CiDataSourceTypeGuesser;
import com.googlesource.gerrit.plugins.verifystatus.server.schema.CiDatabaseModule;
import java.util.ArrayList;
import java.util.List;
import javax.sql.DataSource;

class GlobalModule extends FactoryModule {
  private final Injector injector;

  @Inject
  GlobalModule(Injector injector) {
    this.injector = injector;
  }

  @Override
  protected void configure() {
    bind(CapabilityDefinition.class)
        .annotatedWith(Exports.named(AccessCiDatabaseCapability.ID))
        .to(AccessCiDatabaseCapability.class);
    bind(CapabilityDefinition.class)
        .annotatedWith(Exports.named(SaveReportCapability.ID))
        .to(SaveReportCapability.class);
    List<Module> modules = new ArrayList<>();
    modules.add(
        new LifecycleModule() {
          @Override
          protected void configure() {
            // For bootstrap we need to retrieve the ds type first
            CiDataSourceTypeGuesser guesser =
                injector
                    .createChildInjector(new CiDataSourceModule())
                    .getInstance(Key.get(CiDataSourceTypeGuesser.class));

            // For the ds type we retrieve the underlying implementation
            CiDataSourceType dst =
                injector
                    .createChildInjector(new CiDataSourceModule())
                    .getInstance(
                        Key.get(
                            CiDataSourceType.class, Names.named(guesser.guessDataSourceType())));
            // Bind the type to the retrieved instance
            bind(CiDataSourceType.class).toInstance(dst);
            bind(CiDataSourceProvider.Context.class)
                .toInstance(CiDataSourceProvider.Context.MULTI_USER);
            bind(Key.get(DataSource.class, Names.named("CiDb")))
                .toProvider(CiDataSourceProvider.class)
                .in(SINGLETON);
            listener().to(CiDataSourceProvider.class);
          }
        });
    modules.add(new CiDatabaseModule());
    for (Module module : modules) {
      install(module);
    }
    install(
        new RestApiModule() {
          @Override
          protected void configure() {
            get(CONFIG_KIND, "config").to(GetConfig.class);
            put(CONFIG_KIND, "config").to(PutConfig.class);
            get(REVISION_KIND, "verifications").to(GetVerifications.class);
            post(REVISION_KIND, "verifications").to(PostVerification.class);
          }
        });
  }
}