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// Copyright (C) 2009 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.common.data;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.gerrit.entities.Patch.ChangeType;
import com.google.gerrit.extensions.client.DiffPreferencesInfo;
import com.google.gerrit.extensions.client.DiffPreferencesInfo.Whitespace;
import com.google.gerrit.prettify.common.SparseFileContent;
import java.util.List;
import java.util.Set;
import org.eclipse.jgit.diff.Edit;

public class PatchScript {
  public enum DisplayMethod {
    NONE,
    DIFF,
    IMG
  }

  public enum FileMode {
    FILE,
    SYMLINK,
    GITLINK;

    public static FileMode fromJgitFileMode(org.eclipse.jgit.lib.FileMode jgitFileMode) {
      PatchScript.FileMode fileMode = PatchScript.FileMode.FILE;
      if (jgitFileMode == org.eclipse.jgit.lib.FileMode.SYMLINK) {
        fileMode = FileMode.SYMLINK;
      } else if (jgitFileMode == org.eclipse.jgit.lib.FileMode.GITLINK) {
        fileMode = FileMode.GITLINK;
      }
      return fileMode;
    }
  }

  public static class PatchScriptFileInfo {
    public final String name;
    public final FileMode mode;
    public final SparseFileContent content;
    public final DisplayMethod displayMethod;
    public final String mimeType;
    public final String commitId;

    PatchScriptFileInfo(
        String name,
        FileMode mode,
        SparseFileContent content,
        DisplayMethod displayMethod,
        String mimeType,
        String commitId) {
      this.name = name;
      this.mode = mode;
      this.content = content;
      this.displayMethod = displayMethod;
      this.mimeType = mimeType;
      this.commitId = commitId;
    }
  }

  private final ChangeType changeType;
  private final ImmutableList header;
  private final DiffPreferencesInfo diffPrefs;
  private final ImmutableList edits;
  private final ImmutableSet editsDueToRebase;
  private final boolean intralineFailure;
  private final boolean intralineTimeout;
  private final boolean binary;
  private final PatchScriptFileInfo fileInfoA;
  private final PatchScriptFileInfo fileInfoB;

  public PatchScript(
      ChangeType ct,
      String on,
      String nn,
      FileMode om,
      FileMode nm,
      ImmutableList h,
      DiffPreferencesInfo dp,
      SparseFileContent ca,
      SparseFileContent cb,
      ImmutableList e,
      ImmutableSet editsDueToRebase,
      DisplayMethod ma,
      DisplayMethod mb,
      String mta,
      String mtb,
      boolean idf,
      boolean idt,
      boolean bin,
      String cma,
      String cmb) {
    changeType = ct;
    header = h;
    diffPrefs = dp;
    edits = e;
    this.editsDueToRebase = editsDueToRebase;
    intralineFailure = idf;
    intralineTimeout = idt;
    binary = bin;

    fileInfoA = new PatchScriptFileInfo(on, om, ca, ma, mta, cma);
    fileInfoB = new PatchScriptFileInfo(nn, nm, cb, mb, mtb, cmb);
  }

  public List getPatchHeader() {
    return header;
  }

  public ChangeType getChangeType() {
    return changeType;
  }

  public String getOldName() {
    return fileInfoA.name;
  }

  public String getNewName() {
    return fileInfoB.name;
  }

  public DiffPreferencesInfo getDiffPrefs() {
    return diffPrefs;
  }

  public boolean isIgnoreWhitespace() {
    return diffPrefs.ignoreWhitespace != Whitespace.IGNORE_NONE;
  }

  public boolean hasIntralineFailure() {
    return intralineFailure;
  }

  public boolean hasIntralineTimeout() {
    return intralineTimeout;
  }

  public SparseFileContent getA() {
    return fileInfoA.content;
  }

  public SparseFileContent getB() {
    return fileInfoB.content;
  }

  public List getEdits() {
    return edits;
  }

  public Set getEditsDueToRebase() {
    return editsDueToRebase;
  }

  public boolean isBinary() {
    return binary;
  }

  public PatchScriptFileInfo getFileInfoA() {
    return fileInfoA;
  }

  public PatchScriptFileInfo getFileInfoB() {
    return fileInfoB;
  }
}