/*
 * Copyright 2000-2011 JetBrains s.r.o.
 *
 * 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 jetbrains.buildServer.usageStatistics.impl.providers;

import jetbrains.buildServer.buildTriggers.BuildTriggerDescriptor;
import jetbrains.buildServer.buildTriggers.BuildTriggerService;
import jetbrains.buildServer.serverSide.SBuildServer;
import jetbrains.buildServer.serverSide.SBuildType;
import jetbrains.buildServer.usageStatistics.presentation.UsageStatisticsGroupPosition;
import jetbrains.buildServer.util.positioning.PositionAware;
import org.jetbrains.annotations.NotNull;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

public class TriggerUsageStatisticsProvider extends BaseExtensionUsageStatisticsProvider {
  @NotNull private final SBuildServer myServer;

  public TriggerUsageStatisticsProvider(@NotNull final SBuildServer server) {
    myServer = server;
  }

  @NotNull
  @Override
  protected PositionAware getGroupPosition() {
    return UsageStatisticsGroupPosition.TRIGGERS;
  }

  @Override
  protected void collectUsages(@NotNull final UsagesCollectorCallback callback) {
    for (final SBuildType buildType : myServer.getProjectManager().getActiveBuildTypes()) {
      final Set<String> collectedNames = new HashSet<String>();
      for (final BuildTriggerDescriptor triggerDescriptor : buildType.getBuildTriggersCollection()) {
        final BuildTriggerService triggerService = triggerDescriptor.getBuildTriggerService();
        final String name = triggerService.getName();
        if (!collectedNames.contains(name)) {
          callback.addUsage(name, triggerService.getDisplayName());
          collectedNames.add(name);
        }
      }
    }
  }

  @NotNull
  @Override
  protected String getValueTooltip() {
    return "Build configuration count (% of active build configurations)";
  }

  @Override
  protected int getTotalUsagesCount(@NotNull final Map<ExtensionType, Integer> extensionUsages) {
    return myServer.getProjectManager().getActiveBuildTypes().size();
  }
}