/*
 * Copyright (C) 2024 olang maintainers
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
#include "cli_runner.h"
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#define OLANG_COMPILER_PATH "../../0c"

int _compiler_exists_already_checked = 0;

void
_assert_compiler_exists()
{
    {
        if (_compiler_exists_already_checked == 1) {
            return;
        }

        _compiler_exists_already_checked = 1;
    }

    FILE *file;
    if ((file = fopen(OLANG_COMPILER_PATH, "r"))) {
        fclose(file);
        return;
    }

    assert(false && "Compiler not found. Build the compiler before executing tests.");
}

void
_create_tmp_file_name(char *file_name)
{
    sprintf(file_name, "%s/olang_programXXXXXX", P_tmpdir);
    int fd = mkstemp(file_name);
    assert(fd != -1 && "Could not create a tmp file");
    close(fd);
}

cli_result_t
cli_runner_compile_file(char *src)
{
    _assert_compiler_exists();

    cli_result_t result;
    _create_tmp_file_name(result.binary_loc);

    char command[1024];
    sprintf(command, "%s -o %s %s", OLANG_COMPILER_PATH, result.binary_loc, src);

    result.exit_code = system(command);
    return result;
}