/*
 * Copyright 2008 The Closure Compiler Authors.
 *
 * 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.google.javascript.jscomp;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;

import java.util.List;

/**
 * Control whether warnings should be restricted or suppressed for specified
 * paths.
 *
 * @author anatol@google.com (Anatol Pomazau)
 */
public final class ShowByPathWarningsGuard extends WarningsGuard {
  private static final long serialVersionUID = 1L;

  /**
   * Controls whether warnings should be restricted to a specified path or
   * suppressed within the specified path.
   */
  public enum ShowType {
    INCLUDE,  // Suppress warnings outside the path.
    EXCLUDE   // Suppress warnings within the path.
  }

  private final ByPathWarningsGuard warningsGuard;

  public ShowByPathWarningsGuard(String checkWarningsOnlyForPath) {
    this(checkWarningsOnlyForPath, ShowType.INCLUDE);
  }

  public ShowByPathWarningsGuard(String[] checkWarningsOnlyForPath) {
    this(checkWarningsOnlyForPath, ShowType.INCLUDE);
  }

  public ShowByPathWarningsGuard(String path, ShowType showType) {
    this(new String[] { path }, showType);
  }

  public ShowByPathWarningsGuard(String[] paths, ShowType showType) {
    Preconditions.checkArgument(paths != null);
    Preconditions.checkArgument(showType != null);
    List<String> pathList = ImmutableList.copyOf(paths);
    if (showType == ShowType.INCLUDE) {
      warningsGuard = ByPathWarningsGuard.exceptPath(pathList, CheckLevel.OFF);
    } else {
      warningsGuard = ByPathWarningsGuard.forPath(pathList, CheckLevel.OFF);
    }
  }

  @Override
  public CheckLevel level(JSError error) {
    return warningsGuard.level(error);
  }

  @Override
  protected int getPriority() {
    return warningsGuard.getPriority();
  }
}