/*
   +----------------------------------------------------------------------+
   | PHP Version 7                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2016 The PHP Group                                |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.php.net/license/3_01.txt                                  |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Michele Locati <mlocati@gmail.com>                           |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

#include "win32/console.h"


PHP_WINUTIL_API BOOL php_win32_console_fileno_is_console(zend_long fileno)
{
	BOOL result = FALSE;
	HANDLE handle = (HANDLE) _get_osfhandle(fileno);

	if (handle != INVALID_HANDLE_VALUE) {
        DWORD mode;
        if (GetConsoleMode(handle, &mode)) {
            result = TRUE;
		}
	}
	return result;
}

PHP_WINUTIL_API BOOL php_win32_console_fileno_has_vt100(zend_long fileno)
{
	BOOL result = FALSE;
	HANDLE handle = (HANDLE) _get_osfhandle(fileno);

	if (handle != INVALID_HANDLE_VALUE) {
		DWORD events;

		if (fileno != 0 && !GetNumberOfConsoleInputEvents(handle, &events)) {
			// Not STDIN
			DWORD mode;

			if (GetConsoleMode(handle, &mode)) {
				if (mode & ENABLE_VIRTUAL_TERMINAL_PROCESSING) {
					result = TRUE;
				}
			}
		}
	}
	return result;
}

PHP_WINUTIL_API BOOL php_win32_console_fileno_set_vt100(zend_long fileno, BOOL enable)
{
	BOOL result = FALSE;
	HANDLE handle = (HANDLE) _get_osfhandle(fileno);

	if (handle != INVALID_HANDLE_VALUE) {
		DWORD events;

		if (fileno != 0 && !GetNumberOfConsoleInputEvents(handle, &events)) {
			// Not STDIN
			DWORD mode;

			if (GetConsoleMode(handle, &mode)) {
				DWORD newMode;

				if (enable) {
					newMode = mode | ENABLE_VIRTUAL_TERMINAL_PROCESSING;
				}
				else {
					newMode = mode & ~ENABLE_VIRTUAL_TERMINAL_PROCESSING;
				}
				if (newMode == mode) {
					result = TRUE;
				}
				else {
					if (SetConsoleMode(handle, newMode)) {
						result = TRUE;
					}
				}
			}
		}
	}
	return result;
}