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/*
 * Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
 * 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.
 */

#include <AK/ByteBuffer.h>
#include <AK/String.h>
#include <LibCore/File.h>
#include <LibMarkdown/Document.h>
#include <stdio.h>
#include <string.h>

int main(int argc, char* argv[])
{
    if (pledge("stdio rpath", nullptr) < 0) {
        perror("pledge");
        return 1;
    }

    const char* file_name = nullptr;
    bool html = false;

    for (int i = 1; i < argc; i++)
        if (strcmp(argv[i], "--html") == 0)
            html = true;
        else
            file_name = argv[i];

    auto file = Core::File::construct();
    ;
    bool success;
    if (file_name == nullptr) {
        success = file->open(STDIN_FILENO, Core::IODevice::OpenMode::ReadOnly, Core::File::ShouldCloseFileDescription::No);
    } else {
        file->set_filename(file_name);
        success = file->open(Core::IODevice::OpenMode::ReadOnly);
    }
    if (!success) {
        fprintf(stderr, "Error: %s\n", file->error_string());
        return 1;
    }

    if (pledge("stdio", nullptr) < 0) {
        perror("pledge");
        return 1;
    }

    auto buffer = file->read_all();
    dbg() << "Read size " << buffer.size();

    auto input = String::copy(buffer);
    Markdown::Document document;
    success = document.parse(input);

    if (!success) {
        fprintf(stderr, "Error parsing\n");
        return 1;
    }

    String res = html ? document.render_to_html() : document.render_for_terminal();
    printf("%s", res.characters());
}