// Copyright (C) 2017 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.google.gerrit.extensions.common.testing;

import static com.google.common.truth.Truth.assertAbout;
import static com.google.gerrit.extensions.common.testing.FileMetaSubject.fileMetas;
import static com.google.gerrit.truth.ListSubject.elements;

import com.google.common.truth.ComparableSubject;
import com.google.common.truth.FailureMetadata;
import com.google.common.truth.Subject;
import com.google.gerrit.extensions.common.ChangeType;
import com.google.gerrit.extensions.common.DiffInfo;
import com.google.gerrit.extensions.common.DiffInfo.ContentEntry;
import com.google.gerrit.truth.ListSubject;

public class DiffInfoSubject extends Subject {

  public static DiffInfoSubject assertThat(DiffInfo diffInfo) {
    return assertAbout(DiffInfoSubject::new).that(diffInfo);
  }

  private final DiffInfo diffInfo;

  private DiffInfoSubject(FailureMetadata failureMetadata, DiffInfo diffInfo) {
    super(failureMetadata, diffInfo);
    this.diffInfo = diffInfo;
  }

  public ListSubject<ContentEntrySubject, ContentEntry> content() {
    isNotNull();
    return check("content")
        .about(elements())
        .thatCustom(diffInfo.content, ContentEntrySubject.contentEntries());
  }

  public ComparableSubject<ChangeType> changeType() {
    isNotNull();
    return check("changeType").that(diffInfo.changeType);
  }

  public FileMetaSubject metaA() {
    isNotNull();
    return check("metaA").about(fileMetas()).that(diffInfo.metaA);
  }

  public FileMetaSubject metaB() {
    isNotNull();
    return check("metaB").about(fileMetas()).that(diffInfo.metaB);
  }
}