CmdUtils.CreateCommand({
	name: "forecast",
	homepage: "http://dothejustice.com/forecast/",
	author: {name: "Brad McNair", email: "bradlby@dothejustice.com"},
	takes: {"location": noun_arb_text},
	modifiers: {in: noun_arb_text},
	icon: "http://www.wunderground.com/favicon.ico",
	description: "Displays the 5 day forecast for a given location.",
	help: "Works with both zip codes and city names.  Append "in c" for Celsius temperatures and "in f" for Fahrenheit.  If no units are specified the user's geolocation determines the units.",
	execute: function( directObj, mods ) {
		var location = directObj.text;
		var units = mods.in.text;
		var url = "http://www.wunderground.com/cgi-bin/findweather/getForecast?query=";
		url += escape( location );
		
		Utils.openUrlInBrowser( url );
		},
	
	preview: function( pblock, directObj, units ) {
		var location = directObj.text;
		if( location.length < 1 ) {
			pblock.innerHTML = "Displays the weather forecast for a zip code/city.";
			return;
		}
		
		//Set the temperature units based on geolocation if nothing is specified by the user 
		
		var tempunits = 'c';
		if(!units.in.text){
			var cc = CmdUtils.getGeoLocation().country_code;
			if(["US", "UM", "BZ"].indexOf(cc) != -1){
				tempunits = 'f';
			}
		}else{
			tempunits = units.in.text;
		}
				
		// Let's get the forecast data from Wunderground's forecast XML feed
	
		var url = "http://api.wunderground.com/auto/wui/geo/ForecastXML/index.xml";
		jQuery.get( url, {query: location}, function(xml) {
			var forecastData = [];
			var el = jQuery(xml).find("simpleforecast");
			if( el.length == 0 ) return;
	
		// If there is data, let's loop through and get the day and status icon
		
			el.find("forecastday").each(function(i){
				var period = jQuery(this);
				var icon = period.find("icon").text();
				forecastData.push({
					day: period.find("weekday").text(),
					fhigh: period.find("high fahrenheit").text(),
					flow: period.find("low fahrenheit").text(),
					chigh: period.find("high celsius").text(),
					clow: period.find("low celsius").text(),
					image: "http://icons-pe.wxug.com/i/c/a/" + icon + ".gif"
				});
			});

			var previewTemplate = "{for day in d}" +
			"<div style=\"float: left; text-align: center; width: 80px; height: 90px;\">" +
			"${day.day}" +
			"<br />" +
			"<img src=\"${day.image}\" />" +
			"<br />" +
			
			// If the unit is defined as Celsius, switch to that.  Otherwise stay with Fahrenheit
			
			"{if unit[0] == \"c\"}"+
			"H: ${day.chigh}&deg;C <br /> L: ${day.clow}&deg;C" +
			"{else}" + 
			"H: ${day.fhigh}&deg;F <br /> L: ${day.flow}&deg;F" +
			"{/if}" +
			"</div>" +
			"{/for}" +
			"<div style=\"clear: both;\">&nbsp;</div>";

			var previewData = {
				loc: directObj.text,
				d: forecastData,
				unit: tempunits,
			};

			pblock.innerHTML = CmdUtils.renderTemplate(previewTemplate, previewData);
		});
	}

});