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#include <AK/String.h>
#include <LibCore/CEventLoop.h>
#include <LibGUI/GClipboard.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>

struct Options {
    bool print_type { false };
    bool no_newline { false };
};

void print_usage(FILE* stream, const char* argv0)
{
    fprintf(
        stream,
        "Usage:\n"
        "\t%s [--print-type] [--no-newline]\n"
        "\n"
        "\t--print-type\t\tDisplay the copied type.\n"
        "\t-n, --no-newline\tDo not append a newline.\n"
        "\t-h, --help\t\tPrint this help message.\n",
        argv0);
}

Options parse_options(int argc, char* argv[])
{
    Options options;

    static struct option long_options[] = {
        { "print-type", no_argument, 0, 'p' },
        { "no-newline", no_argument, 0, 'n' },
        { "help", no_argument, 0, 'h' },
        { 0, 0, 0, 0 }
    };
    while (true) {
        int option_index;
        int c = getopt_long(argc, argv, "hn", long_options, &option_index);
        if (c == -1)
            break;
        if (c == 0)
            c = long_options[option_index].val;

        switch (c) {
        case 'p':
            options.print_type = true;
            break;
        case 'n':
            options.no_newline = true;
            break;
        case 'h':
            print_usage(stdout, argv[0]);
            exit(0);
        default:
            print_usage(stderr, argv[0]);
            exit(1);
        }
    }

    return options;
}

int main(int argc, char* argv[])
{
    Options options = parse_options(argc, argv);

    CEventLoop loop;

    GClipboard& clipboard = GClipboard::the();
    auto data_and_type = clipboard.data_and_type();

    if (!options.print_type) {
        printf("%s", data_and_type.data.characters());
        // Append a newline to text contents, but
        // only if we're not asked not to do this.
        if (data_and_type.type == "text" && !options.no_newline)
            putchar('\n');
    } else {
        printf("%s\n", data_and_type.type.characters());
    }
}