/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * -----------------------------------------------------------------------------
 * File: Console.c
 * Description:
 *  This file contains the functions for reading and writting to the console.
 * 
 * Author: Mineplay
 * -----------------------------------------------------------------------------
 */
#include "../../Include/Iony/Core/Console.h"
#include "Iony/Utils/Error.h"

#if defined(_WIN32)
#include <windows.h>

static HANDLE iony_standard_console_in = 0;
#elif defined(__GNUC__)
#include "../../Include/Iony/Utils/System.h"
#endif

IonyError iony_print(const char *text, const long length) {
    if (text == 0) {
        return IONY_ERROR_INVALID_POINTER;
    }

    #if defined(_WIN32)
    static HANDLE standard_console_out_handle = 0;
    if (standard_console_out_handle == 0) {
        standard_console_out_handle = GetStdHandle(STD_OUTPUT_HANDLE);
    }

    DWORD characters_written;
    if (!WriteFile(standard_console_out_handle, text, length, &characters_written, 0)) {
        return IONY_ERROR_SYSTEM_CALL_FAILED;
    }
    #elif defined(__GNUC__)
    if (iony_system_call(IONY_SYS_WRITE, 1, (long)text, length, 0, 0, 0) < 0) {
        return IONY_ERROR_SYSTEM_CALL_FAILED;
    }
    #endif

    return IONY_ERROR_NONE;
}

IonyError iony_get_character(char *character) {
    if (character == 0) {
        return IONY_ERROR_INVALID_POINTER;
    }

    #if defined(_WIN32)
    if (iony_standard_console_in == 0) {
        iony_standard_console_in = GetStdHandle(STD_INPUT_HANDLE);
    }

    DWORD characters_read;
    if (!ReadFile(iony_standard_console_in, character, 1, &characters_read, 0)) {
        return IONY_ERROR_SYSTEM_CALL_FAILED;
    }
    #elif defined(__GNUC__)
    if (iony_system_call(IONY_SYS_READ, 0, (long)character, 1, 0, 0, 0)) {
        return IONY_ERROR_SYSTEM_CALL_FAILED;
    }
    #endif

    return IONY_ERROR_NONE;
}