/*
 * Copyright (C) 2013 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.android.tools.idea.gradle.service.notification;

import com.android.tools.idea.gradle.service.notification.errors.*;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Splitter;
import com.google.common.collect.Lists;
import com.intellij.openapi.externalSystem.model.ExternalSystemException;
import com.intellij.openapi.externalSystem.model.ProjectSystemId;
import com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationExtension;
import com.intellij.openapi.externalSystem.service.notification.NotificationData;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.text.StringUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.gradle.util.GradleConstants;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.UndeclaredThrowableException;
import java.util.Arrays;
import java.util.List;

public class GradleNotificationExtension implements ExternalSystemNotificationExtension {
  private final List<AbstractSyncErrorHandler> myHandlers;

  public GradleNotificationExtension() {
    this(Arrays.asList(new Gradle2RequiredErrorHandler(), new UnsupportedModelVersionErrorHandler(), new FailedToParseSdkErrorHandler(),
                       new GradleSettingsErrorHandler(), new MissingAndroidSdkErrorHandler(), new MissingAndroidSupportRepoErrorHandler(),
                       new UnsupportedGradleVersionErrorHandler(), new SdkBuildToolsTooLowErrorHandler(), new MissingPlatformErrorHandler(),
                       new MissingBuildToolsErrorHandler(), new InternetConnectionErrorHandler(), new MissingDependencyErrorHandler(),
                       new CachedDependencyNotFoundErrorHandler(), new UnexpectedErrorHandler(), new UnknownHostErrorHandler(),
                       new CorruptGradleDependencyErrorHandler(), new JavaHeapSpaceErrorHandler(), new ClassLoadingErrorHandler(),
                       new ObjectStreamErrorHandler(), new GenericErrorHandler()));
  }

  @VisibleForTesting
  GradleNotificationExtension(@NotNull List<AbstractSyncErrorHandler> errorHandlers) {
    myHandlers = errorHandlers;
  }

  @Override
  @NotNull
  public ProjectSystemId getTargetExternalSystemId() {
    return GradleConstants.SYSTEM_ID;
  }

  @Override
  public void customize(@NotNull NotificationData notification, @NotNull Project project, @Nullable Throwable error) {
    Throwable cause = error;
    if (error instanceof UndeclaredThrowableException) {
      cause = ((UndeclaredThrowableException)error).getUndeclaredThrowable();
      if (cause instanceof InvocationTargetException) {
        cause = ((InvocationTargetException)cause).getTargetException();
      }
    }
    if (cause instanceof ExternalSystemException) {
      handleError((ExternalSystemException)cause, notification, project);
    }
  }

  private void handleError(ExternalSystemException error, NotificationData notification, Project project) {
    String msg = error.getMessage();
    if (StringUtil.isEmpty(msg)) {
      return;
    }
    List<String> lines = splitLines(msg);
    for (AbstractSyncErrorHandler handler : myHandlers) {
      if (handler.handleError(lines, error, notification, project)) {
        return;
      }
    }
  }

  @NotNull
  private static List<String> splitLines(@NotNull String s) {
    return Lists.newArrayList(Splitter.on('\n').split(s));
  }
}