/*
 * Copyright 2012-present Facebook, Inc.
 *
 * 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.facebook.buck.model;

import com.facebook.buck.io.MorePaths;
import com.facebook.buck.util.immutables.BuckStyleTuple;
import com.google.common.base.Objects;
import java.nio.file.Path;
import org.immutables.value.Value;

/** A pattern matches build targets that are all in the same directory. */
@Value.Immutable(builder = false, copy = false)
@BuckStyleTuple
abstract class AbstractImmediateDirectoryBuildTargetPattern implements BuildTargetPattern {

  protected abstract Path getCellPath();

  /**
   * The base path of all valid build targets. It is expected to match the value returned from a
   * {@link BuildTarget#getBasePath()} call.
   */
  protected abstract Path getPathWithinCell();

  /**
   * @return true if the given target not null and has the same basePathWithSlash, otherwise return
   *     false.
   */
  @Override
  public boolean matches(BuildTarget target) {
    return Objects.equal(getCellPath(), target.getCellPath())
        && Objects.equal(getPathWithinCell(), target.getBasePath());
  }

  @Override
  public String getCellFreeRepresentation() {
    return "//" + MorePaths.pathWithUnixSeparators(getPathWithinCell()) + ":";
  }

  @Override
  public String toString() {
    return "+"
        + getCellPath().getFileName().toString()
        + "//"
        + getPathWithinCell().toString()
        + ":";
  }
}