/*
** Zabbix
** Copyright (C) 2001-2016 Zabbix SIA
**
** 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 2 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, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/


jQuery.noConflict();

function isset(key, obj) {
	return (is_null(key) || is_null(obj)) ? false : (typeof(obj[key]) != 'undefined');
}

/**
 * @deprecated  use strict comparison instead
 *
 * @param obj
 * @returns {*}
 */
function empty(obj) {
	if (is_null(obj)) {
		return true;
	}
	if (obj === false) {
		return true;
	}
	if (is_string(obj) && obj === '') {
		return true;
	}
	if (typeof(obj) == 'undefined') {
		return true;
	}

	return is_array(obj) && obj.length == 0;
}

/**
 * @deprecated use === null instead
 *
 * @param obj
 * @returns {boolean}
 */
function is_null(obj) {
	return (obj == null);
}

function is_number(obj) {
	return isNaN(obj) ? false : (typeof(obj) === 'number');
}

function is_object(obj, instance) {
	if (typeof(instance) === 'object' || typeof(instance) === 'function') {
		if (typeof(obj) === 'object' && obj instanceof instance) {
			return true;
		}
	}
	else {
		if (typeof(obj) === 'object') {
			return true;
		}
	}

	return false;
}

function is_string(obj) {
	return (typeof(obj) === 'string');
}

function is_array(obj) {
	return (obj != null) && (typeof obj == 'object') && ('splice' in obj) && ('join' in obj);
}

function addListener(element, eventname, expression, bubbling) {
	bubbling = bubbling || false;
	element = $(element);

	if (element.addEventListener) {
		element.addEventListener(eventname, expression, bubbling);
		return true;
	}
	else if (element.attachEvent) {
		element.attachEvent('on' + eventname, expression);
		return true;
	}
	else {
		return false;
	}
}

function removeListener(element, eventname, expression, bubbling) {
	bubbling = bubbling || false;
	element = $(element);

	if (element.removeEventListener) {
		element.removeEventListener(eventname, expression, bubbling);
		return true;
	}
	else if (element.detachEvent) {
		element.detachEvent('on' + eventname, expression);
		return true;
	}
	else {
		return false;
	}
}

function cancelEvent(e) {
	if (!e) {
		e = window.event;
	}

	e.stopPropagation();
	e.preventDefault();

	if (IE) {
		e.cancelBubble = true;
		e.returnValue = false;
	}

	return false;
}

function add_variable(o_el, s_name, x_value, s_formname, o_document) {
	var form;

	if (!o_document) {
		o_document = document;
	}

	if (s_formname) {
		if (!(form = o_document.forms[s_formname])) {
			throw "Missing form with name '" + s_formname + "'.";
		}
	}
	else if (o_el) {
		if (!(form = o_el.form)) {
			throw "Missing form in 'o_el' object";
		}
	}
	else {
		if (!(form = this.form)) {
			throw "Missing form in 'this' object";
		}
	}

	var o_variable = o_document.createElement('input');
	if (!o_variable) {
		throw "Can't create element";
	}
	o_variable.type = 'hidden';
	o_variable.name = s_name;
	o_variable.id = s_name;
	o_variable.value = x_value;
	form.appendChild(o_variable);

	return true;
}

function checkAll(form_name, chkMain, shkName) {
	var frmForm = document.forms[form_name],
		value = frmForm.elements[chkMain].checked;

	chkbxRange.checkObjectAll(shkName, value);
	chkbxRange.update(shkName);
	chkbxRange.saveCookies(shkName);

	return true;
}

function checkLocalAll(form_name, chkMain, chkName) {
	var frmForm = document.forms[form_name];
	var checkboxes = $$('input[name=' + chkName + ']');

	for (var i = 0; i < checkboxes.length; i++) {
		if (isset('type', checkboxes[i]) && checkboxes[i].type == 'checkbox') {
			checkboxes[i].checked = frmForm.elements[chkMain].checked;
		}
	}

	return true;
}

function close_window() {
	window.setTimeout('window.close();', 500); // solve bug for Internet Explorer
	return false;
}

function Confirm(msg) {
	return confirm(msg, 'title');
}

function create_var(form_name, var_name, var_value, doSubmit) {
	var objForm = is_string(form_name) ? document.forms[form_name] : form_name;
	if (!objForm) {
		return false;
	}

	var objVar = (typeof(objForm[var_name]) != 'undefined') ? objForm[var_name] : null;
	if (is_null(objVar)) {
		objVar = document.createElement('input');
		objVar.setAttribute('type', 'hidden');
		if (!objVar) {
			return false;
		}
		objVar.setAttribute('name', var_name);
		objVar.setAttribute('id', var_name.replace(']', '').replace('[', '_'));
		objForm.appendChild(objVar);
	}

	if (is_null(var_value)) {
		objVar.parentNode.removeChild(objVar);
	}
	else {
		objVar.value = var_value;
	}

	if (doSubmit) {
		objForm.submit();
	}

	return false;
}

function getDimensions(obj, trueSide) {
	obj = $(obj);

	if (typeof(trueSide) == 'undefined') {
		trueSide = false;
	}

	var dim = {
		left:	0,
		top:	0,
		right:	0,
		bottom:	0,
		width:	0,
		height:	0
	};

	if (!is_null(obj) && typeof(obj.offsetParent) != 'undefined') {
		var dim = {
			left:	parseInt(obj.style.left, 10),
			top:	parseInt(obj.style.top, 10),
			right:	parseInt(obj.style.right, 10),
			bottom:	parseInt(obj.style.bottom, 10),
			width:	parseInt(obj.style.width, 10),
			height:	parseInt(obj.style.height, 10)
		};

		if (!is_number(dim.top)) {
			dim.top = parseInt(obj.offsetTop, 10);
		}
		if (!is_number(dim.left)) {
			dim.left = parseInt(obj.offsetLeft, 10);
		}
		if (!is_number(dim.width)) {
			dim.width = parseInt(obj.offsetWidth, 10);
		}
		if (!is_number(dim.height)) {
			dim.height = parseInt(obj.offsetHeight, 10);
		}

		if (!trueSide) {
			dim.right = dim.left + dim.width;
			dim.bottom = dim.top + dim.height;
		}
	}

	return dim;
}

function getPosition(obj) {
	obj = $(obj);
	var pos = {top: 0, left: 0};

	if (!is_null(obj) && typeof(obj.offsetParent) != 'undefined') {
		pos.left = obj.offsetLeft;
		pos.top = obj.offsetTop;

		try {
			while (!is_null(obj.offsetParent)) {
				obj = obj.offsetParent;
				pos.left += obj.offsetLeft;
				pos.top += obj.offsetTop;

				if (IE && obj.offsetParent.toString() == 'unknown') {
					break;
				}
			}
		} catch(e) {
		}
	}

	return pos;
}

function get_bodywidth() {
	var w = parseInt(document.body.scrollWidth);
	var w2 = parseInt(document.body.offsetWidth);

	return (w2 < w) ? w2 : w;
}

function get_cursor_position(e) {
	e = e || window.event;
	var cursor = {x: 0, y: 0};

	if (e.pageX || e.pageY) {
		cursor.x = e.pageX;
		cursor.y = e.pageY;
	}
	else {
		var de = document.documentElement;
		var b = document.body;
		cursor.x = e.clientX + (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
		cursor.y = e.clientY + (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
	}

	return cursor;
}

function get_scroll_pos() {
	var scrOfX = 0, scrOfY = 0;

	// netscape compliant
	if (typeof(window.pageYOffset) == 'number') {
		scrOfY = window.pageYOffset;
		scrOfX = window.pageXOffset;
	}
	// DOM compliant
	else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
		scrOfY = document.body.scrollTop;
		scrOfX = document.body.scrollLeft;
	}
	// IE6 standards compliant mode
	else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
		scrOfY = document.documentElement.scrollTop;
		scrOfX = document.documentElement.scrollLeft;
	}

	return [scrOfX, scrOfY];
}

function openWinCentered(url, name, width, height, params) {
	var top = Math.ceil((screen.height - height) / 2),
		left = Math.ceil((screen.width - width) / 2);

	if (params.length > 0) {
		params = ', ' + params;
	}

	var windowObj = window.open(new Curl(url).getUrl(), name,
		'width=' + width + ', height=' + height + ', top=' + top + ', left=' + left + params
	);
	windowObj.focus();
}

function PopUp(url, width, height, form_name) {
	if (!width) {
		width = 1024;
	}
	if (!height) {
		height = 768;
	}
	if (!form_name) {
		form_name = 'zbx_popup';
	}

	var left = (screen.width - (width + 150)) / 2;
	var top = (screen.height - (height + 150)) / 2;

	var popup = window.open(url, form_name, 'width=' + width + ', height=' + height + ', top=' + top + ', left=' + left + ', resizable=yes, scrollbars=yes, location=no, menubar=no');
	popup.focus();

	return false;
}

function redirect(uri, method, needle, invert_needle) {
	method = method || 'get';
	var url = new Curl(uri);

	if (method.toLowerCase() == 'get') {
		window.location = url.getUrl();
	}
	else {
		// useless param just for easier loop
		var action = '';
		var domBody = document.getElementsByTagName('body')[0];
		var postForm = document.createElement('form');
		domBody.appendChild(postForm);
		postForm.setAttribute('method', 'post');

		invert_needle = (typeof(invert_needle) != 'undefined' && invert_needle);

		var args = url.getArguments();
		for (var key in args) {
			if (empty(args[key])) {
				continue;
			}

			var is_needle = (typeof(needle) != 'undefined' && key.indexOf(needle) > -1);

			if ((is_needle && !invert_needle) || (!is_needle && invert_needle)) {
				action += '&' + key + '=' + args[key];
				continue;
			}

			var hInput = document.createElement('input');
			hInput.setAttribute('type', 'hidden');
			postForm.appendChild(hInput);
			hInput.setAttribute('name', key);
			hInput.setAttribute('value', args[key]);
		}

		postForm.setAttribute('action', url.getPath() + '?' + action.substr(1));
		postForm.submit();
	}

	return false;
}

function showHide(obj) {
	if (jQuery(obj).is(':hidden')) {
		jQuery(obj).css('display', 'block');
	}
	else {
		jQuery(obj).css('display', 'none');
	}
}

function showHideVisible(obj) {
	if (is_string(obj)) {
		obj = document.getElementById(obj);
	}
	if (!obj) {
		throw 'showHideVisible(): Object not found.';
	}

	if (obj.style.visibility != 'hidden') {
		obj.style.visibility = 'hidden';
	}
	else {
		obj.style.visibility = 'visible';
	}
}

function showHideByName(name, style) {
	if (typeof(style) == 'undefined') {
		style = 'none';
	}

	var objs = $$('[name=' + name + ']');

	if (empty(objs)) {
		throw 'showHideByName(): Object not found.';
	}

	for (var i = 0; i < objs.length; i++) {
		var obj = objs[i];
		obj.style.display = style;
	}
}

/**
 * Switch element classes and return final class.
 *
 * @param object|string obj			object or object id
 * @param string        class1
 * @param string        class2
 *
 * @return string
 */
function switchElementClass(obj, class1, class2) {
	obj = (typeof obj === 'string') ? jQuery('#' + obj) : jQuery(obj);

	if (obj.length > 0) {
		if (obj.hasClass(class1)) {
			obj.removeClass(class1);
			obj.addClass(class2);

			return class2;
		}
		else if (obj.hasClass(class2)) {
			obj.removeClass(class2);
			obj.addClass(class1);

			return class1;
		}
	}

	return null;
}

/**
 * Returns the file name of the given path.
 *
 * @param string path
 * @param string suffix
 *
 * @return string
 */
function basename(path, suffix) {
	var name = path.replace(/^.*[\/\\]/g, '');

	if (typeof suffix === 'string' && name.substr(name.length - suffix.length) == suffix) {
		name = name.substr(0, name.length - suffix.length);
	}

	return name;
}

/**
 * Return the number of days in a month.
 *
 * @param int year
 * @param int month
 *
 * @return int
 */
function daysInMonth(year, month) {
	month++;
	var days = 31;
	if (month == 4 || month == 6 || month == 9 || month == 11) {
		days = 30;
	}
	else if (month == 2) {
		days = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) ? 29 : 28;
	}
	return days;
}

/**
 * Transform datetime parts to two digits e.g., 2 becomes 02.
 *
 * @param int val
 *
 * @return string
 */
function appendZero(val) {
	return val < 10 ? '0' + val : val;
}

/**
 * Trims selected element values.
 *
 * @param array selectors
 */
jQuery.fn.trimValues = function(selectors) {
	var form = this,
		obj;

	jQuery.each(selectors, function(i, value) {
		obj = jQuery(value, form);
		obj.val(jQuery.trim(obj.val()));
	});
};
