/*
 * Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "GitFilesView.h"
#include "GitRepo.h"
#include <AK/Function.h>
#include <LibGUI/Forward.h>
#include <LibGUI/Widget.h>

namespace HackStudio {

typedef Function<void(const String& original_content, const String& diff)> ViewDiffCallback;

class GitWidget final : public GUI::Widget {
    C_OBJECT(GitWidget)
public:
    virtual ~GitWidget() override { }

    void refresh();
    void set_view_diff_callback(ViewDiffCallback callback);
    bool initialized() const { return !m_git_repo.is_null(); };

private:
    explicit GitWidget(const LexicalPath& repo_root);

    bool initialize();
    bool initialize_if_needed();
    void stage_file(const LexicalPath&);
    void unstage_file(const LexicalPath&);
    void commit();
    void show_diff(const LexicalPath&);

    LexicalPath m_repo_root;
    RefPtr<GitFilesView> m_unstaged_files;
    RefPtr<GitFilesView> m_staged_files;
    RefPtr<GitRepo> m_git_repo;
    ViewDiffCallback m_view_diff_callback;
};

}