// Widget: Geolocation
(function($){
var memberPublic = {};
var _extensionName = 'mc_geolocation';
// Declare options and set default values.
var _opt = null, _optCustoms = null, _optDefaults = {
	strLocationListId:'',
	strLocatedContainerSelector:'.location-current',
	strLocatedToken1Selector:'.city',
	strLocatedToken2Selector:'.region',
	strLocatedChangeSelector:'.btn_change',
	strPickerContainerSelector:'.location-finder',
	strPickerCancelSelector:'.btn_cancel',
	strGetStateCmsItemUrl:'',
	strSetStateUrl:'',
	strCmsItemIdCookieName:'',
	strHideCss:'location-hide',
	strShowCss:'location-show'
};

/* Private Fields
//-------------------------------------------------------------------*/

var _eleLocatedContainer = null;
var _eleLocatedChange = null;
var _elePickerContainer = null;
var _elePickerCancel = null;

var _strCmsItemId = null;

/* Private Methods
//-------------------------------------------------------------------*/

/** Get state of CMS item. Perform AJAX. */
function _getStateCmsItem(fnResult) {
	$.post(_opt.strGetStateCmsItemUrl, null, function(data, status) {
		if(status == 'success' && (data == '0' || data == 0)) {
			if(fnResult) {fnResult.call(this, null);}
		} else if(status == 'success') {
			if(fnResult) {fnResult.call(this, data);}
		} else {throw status;}
	}, 'json');
}
/** Set state of location. Perform AJAX. */
function _setStateLocation(objDataParameters) {
	if(typeof objDataParameters === 'undefined') {objDataParameters = null;}
	$.post(_opt.strSetStateUrl, objDataParameters, function(data, status) {
		if(status == 'success' && (data == '0' || data == 0)) {
			memberPublic.showPickerContainer();
		} else if(status == 'success') {
			memberPublic.showLocatedContainerAndSetProperties(data.cmsItemId, data.cmsParentItemName, data.cmsItemName);
		} else {throw status;}
	}, 'json');
}

/* Public Methods
//-------------------------------------------------------------------*/

/** Extend core library. */
memberPublic = $[_extensionName] = function(optCustoms) {
	// Merge two options, modifying the first.
	_opt = $.extend({}, _optDefaults, optCustoms);
	// Init.
	memberPublic.init();
	// Return library's object.
	return this;
};
/** Init widget. */
memberPublic.init = function() {
	// Get elements from document.
	_elePickerContainer = $(_opt.strPickerContainerSelector).get(0);
	_eleLocatedContainer = $(_opt.strLocatedContainerSelector).get(0);

	// Get HTTP cookie value.
	_strCmsItemId = memberPublic.getCookieValue(_opt.strCmsItemIdCookieName);

	// Bind events.
	_elePickerCancel = $(_opt.strPickerCancelSelector, _elePickerContainer).bind('click', function(evt) {
		memberPublic.showLocatedContainer()
		// Prevent default action.
		return false;
	}).get(0);
	_eleLocatedChange = $(_opt.strLocatedChangeSelector, _eleLocatedContainer).bind('click', function(evt) {
		memberPublic.showPickerContainer();
		// Prevent default action.
		return false;
	}).get(0);

	// Validate browser.
	if(navigator.userAgent.match(/(iPhone|iPod|Android|Windows Phone OS 7|BlackBerry)/i) && navigator.geolocation) {
		if(_strCmsItemId != null) {
			memberPublic.runDefault();
		} else {
			navigator.geolocation.getCurrentPosition(function(objPosition) {
				_setStateLocation({
					cmsItemId:_opt.strLocationListId,
					latitude:objPosition.coords.latitude,
					longitude:objPosition.coords.longitude,
					override:true
				});
			}, function(objError) {
				memberPublic.runDefault();
			});
		}
	} else if(typeof google !== 'undefined' && google.loader.ClientLocation) {
		_setStateLocation({
			cmsItemId:_opt.strLocationListId,
			latitude:google.loader.ClientLocation.latitude,
			longitude:google.loader.ClientLocation.longitude,
			override:false
		});
	} else {
		memberPublic.runDefault();
	}
};
/** Get options. */
memberPublic.getOptions = function() {
	return _opt;
};
/** Get cookie value. */
memberPublic.getCookieValue = function(name) {
	if(typeof name === 'undefined' || name == null || name.length <= 0) {return null;}
	var start = document.cookie.indexOf(name + '=');
	var len = start + name.length + 1;
	if((!start) && (name != document.cookie.substring(0, name.length))) {
		return null;
	}
	if(start == -1) {return null;}
	var end = document.cookie.indexOf(';', len);
	if(end == -1) {end = document.cookie.length;}
	return unescape(document.cookie.substring(len, end));
};
/** Run default. */
memberPublic.runDefault = function() {
	_getStateCmsItem(function(objResult) {
		if(objResult != null) {
			memberPublic.showLocatedContainerAndSetProperties(objResult.cmsItemId, objResult.cmsParentItemName, objResult.cmsItemName);
		} else {
			memberPublic.showPickerContainer();
		}
	});
};
/** Show picker container. */
memberPublic.showPickerContainer = function() {
	$(_elePickerContainer).removeClass(_opt.strHideCss).addClass(_opt.strShowCss);
	$(_eleLocatedContainer).removeClass(_opt.strShowCss).addClass(_opt.strHideCss);
};
/** Show located container. */
memberPublic.showLocatedContainer = function() {
	$(_elePickerContainer).removeClass(_opt.strShowCss).addClass(_opt.strHideCss);
	$(_eleLocatedContainer).removeClass(_opt.strHideCss).addClass(_opt.strShowCss);
};
/** Show located container and set properties. */
memberPublic.showLocatedContainerAndSetProperties = function(strItemId, strToken1, strToken2) {
	$(_opt.strLocatedToken1Selector, _eleLocatedContainer).text(strToken1);
	$(_opt.strLocatedToken2Selector, _eleLocatedContainer).text(strToken2);
	memberPublic.showLocatedContainer();
};

})(jQuery);