/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import { FileDiff, Hunk as HunkType } from "@scm-manager/ui-types";
import { escapeWhitespace } from "../diffs";
import { AnnotationFactory } from "../DiffTypes";

const EMPTY_ANNOTATION_FACTORY = {};

export const collectHunkAnnotations = (hunk: HunkType, file: FileDiff, annotationFactory?: AnnotationFactory) => {
  if (annotationFactory) {
    return annotationFactory({
      hunk,
      file,
    });
  } else {
    return EMPTY_ANNOTATION_FACTORY;
  }
};

export const getAnchorId = (file: FileDiff) => {
  let path: string;
  if (file.type === "delete") {
    path = file.oldPath;
  } else {
    path = file.newPath;
  }
  return escapeWhitespace(path);
};

export const hasContent = (file: FileDiff) => file && !file.isBinary && file.hunks && file.hunks.length > 0;

export const hoverFileTitle = (file: FileDiff): string => {
  if (file.oldPath !== file.newPath && (file.type === "copy" || file.type === "rename")) {
    return `${file.oldPath} > ${file.newPath}`;
  } else if (file.type === "delete") {
    return file.oldPath;
  }
  return file.newPath;
};

export const markConflicts = (hunk: HunkType) => {
  let inConflict = false;
  for (let i = 0; i < hunk.changes.length; ++i) {
    if (hunk.changes[i].content === "<<<<<<< HEAD") {
      inConflict = true;
    }
    if (inConflict) {
      hunk.changes[i].type = "conflict";
    }
    if (hunk.changes[i].content.startsWith(">>>>>>>")) {
      inConflict = false;
    }
  }
};
