// +---------------------------------------------+
// | Run once document loaded to assign handlers |
// +---------------------------------------------+
// | IMacNeill 02.10.09 v1.0                     |
// +---------------------------------------------+
$(document).ready(function()
{
	// Load first run of demochatter twitter feed
	demoChatter();
});

// +------------------------------------------+
// | Function to retrieve demochatter twitter |
// | feed, parse it and display it into the   |
// | 'newsticker' div.                        |
// +------------------------------------------+
// | IMacNeill 02.25.09 v1.0                  |
// +------------------------------------------+
var reHtmLnk = new RegExp(/(https?:\/\/([-\w\.]+)+(:\d+)?(\/([\w\/_\.]*(\?\S+)?)?)?)/g);
var sHtmRpl = new String("<a href=\"$1\" target=\"_blank\">$1</a>");

var reUsrLnk = new RegExp(/(^|\s)@(\w+)/g);
var sUsrRpl = new String("$1@<a href=\"http://twitter.com/$2\" target=\"_blank\">$2</a>");

var reTagLnk = new RegExp(/(^|\s)#(\w+)/g);
var sTagRpl = new String("$1#<a href=\"http://search.twitter.com/search?q=%23$2\" target=\"_blank\">$2</a>");

var iTwtCyc = 0;
var oBegDte = new Date();
//var iTwtBeg = oBegDte.getTime();

var aMon = new Array(12);
aMon[0] = "Jan";
aMon[1] = "Feb";
aMon[2] = "Mar";
aMon[3] = "Apr";
aMon[4] = "May";
aMon[5] = "Jun";
aMon[6] = "Jul";
aMon[7] = "Aug";
aMon[8] = "Sep";
aMon[9] = "Oct";
aMon[10] = "Nov";
aMon[11] = "Dec";

function demoChatter()
{
	var oTwtDte = new Date();
	var oNowDte = new Date();

	var one_second = 1000;
	var one_minute = one_second * 60;
	var one_hour = one_minute * 60;
	var one_day = one_hour * 24;

	var iNumSec = 0;
	var iNumMin = 0;
	var iNumHrs = 0;
	var iNumDys = 0;
	
	$.getJSON( "http://twitter.com/statuses/user_timeline/demochatter.json?count=10&callback=?", function(data)
	{
		// Purge current contents of newsticker
		$('ul.newsticker').empty();

		// Now rebuild it from returned results
		$.each(data, function(i,tweet)
		{
			var sTwtDte = new String(tweet.created_at);
			var aTwtDte = sTwtDte.split(' ');
			var sNewDte = aTwtDte[1] + ' ' + aTwtDte[2] + ' ' + aTwtDte[5] + ' ' + aTwtDte[3] + ' ' + aTwtDte[4];
			sTmeDif = "";
			oTwtDte.setTime(Date.parse(sNewDte));
			iTmeDif = oNowDte.getTime() - oTwtDte.getTime();
			iNumDys = Math.round(iTmeDif / one_day);

			if (iNumDys > 0)
			{
				iHr = oTwtDte.getHours();
				sHr = iHr;
				sAP = "AM";
				if (iHr == 0)
					sHr = "12";
				else
				{
					if (iHr > 12)
					{
						sHr = iHr - 12;
						sAP = "PM";
					}
				}
				sTmeDif = sHr + ':' + oTwtDte.getMinutes() + ' ' + sAP + ' ' + aMon[oTwtDte.getMonth()] + ' ' + oTwtDte.getDate() + ' ' + oTwtDte.getFullYear();
			}
			else
			{
				// Determine number of hours
				iNumHrs = Math.abs(Math.round(iTmeDif / one_hour));
				if (iNumHrs > 0)
					sTmeDif = "about " + iNumHrs + " hour" + (iNumHrs != 1 ? "s" : "") + " ago";
				else
				{
					iNumMin = Math.abs(Math.round(iTmeDif / one_minute));
					if (iNumMin > 0)
						sTmeDif = "about " + iNumMin + " minute" + (iNumMin != 1 ? "s" : "") + " ago";
					else
					{
						iNumSec = Math.abs(Math.round(iTmeDif / one_second));
						sTmeDif = "about " + iNumSec + " second" + (iNumSec != 1 ? "s" : "") + " ago";
					}
				}
			}

			var sTweet = tweet.text.replace( reHtmLnk, sHtmRpl ).replace( reUsrLnk, sUsrRpl ).replace( reTagLnk, sTagRpl );
			$('ul.newsticker').append("<li>" + sTweet + "<span class='posted'> ~ " + sTmeDif + "</span></li>");
		});

		// Start the news ticker, changes every 7 seconds
		$('ul.newsticker').appendTo('#dccont').newsTicker(7000);

		//iTwtCyc++;
		//iCurTme = oNowDte.getTime() - iTwtBeg;
		//iTotMin = Math.round(iCurTme / one_minute);
		//window.status = "Twitter Cycle: " + iTwtCyc + " - Duration: about " + iTotMin + " minute(s)";

		// Time is set to refresh every one minute
		setTimeout( "demoChatter()", 60000 );
    });
}

function postTimeFilter( iVal )
{
	sUrlPth = window.location.href;
	if (sUrlPth.indexOf("?") > -1)
		sUrlPth = sUrlPth.substr(sUrlPth,0,sUrlPth.indexOf("?"));

	sUrlArg = "";
	sUrlArg += "MFTF=" + iVal;

	var oFrm = document.forms[1];
	sMFTS = TrimWS(oFrm.tbBlgSrc.value);
	if ((sMFTS != "") && (sMFTS != "Search News"))
		sUrlArg += (sUrlArg.length > 0 ? "&" : "") + "MFTS=" + escape(sMFTS);
	
	if (sUrlArg != "")
		window.location.href = sUrlPth + "?" + sUrlArg + "#RptBlgLst";
}

function postReporterSearch()
{
	sUrlPth = window.location.href;
	if (sUrlPth.indexOf("?") > -1)
		sUrlPth = sUrlPth.substr(0,sUrlPth.indexOf("?"));

	sUrlArg = "";
	sMFTF = getUrlArg("MFTF");
	if (sMFTF != "")
		sUrlArg += "MFTF=" + escape(sMFTF);

	var oFrm = document.forms[1];
	sMFTS = TrimWS(oFrm.tbBlgSrc.value);
	if ((sMFTS != "") && (sMFTS != "Search News"))
		sUrlArg += (sUrlArg.length > 0 ? "&" : "") + "MFTS=" + escape(sMFTS);
	
	window.location.href = sUrlPth + (sUrlArg != "" ? "?" + sUrlArg + "#RptBlgLst" : "");
}

// +-----------------------------------------------------------------------------------------------------------------------+
// | Tooltip class taken from http://sixrevisions.com/tutorials/javascript_tutorial/create_lightweight_javascript_tooltip/ |
// +-----------------------------------------------------------------------------------------------------------------------+
var tooltip=function(){
	var id = 'tt';
	var top = 3;
	var left = 3;
	var maxw = 300;
	var speed = 10;
	var timer = 20;
	var endalpha = 95;
	var alpha = 0;
	var tt,t,c,b,h;
	var ie = document.all ? true : false;
	return{
		show:function(v,w){
			if(tt == null){
				tt = document.createElement('div');
				tt.setAttribute('id',id);
				t = document.createElement('div');
				t.setAttribute('id',id + 'top');
				c = document.createElement('div');
				c.setAttribute('id',id + 'cont');
				b = document.createElement('div');
				b.setAttribute('id',id + 'bot');
				tt.appendChild(t);
				tt.appendChild(c);
				tt.appendChild(b);
				document.body.appendChild(tt);
				tt.style.opacity = 0;
				tt.style.filter = 'alpha(opacity=0)';
				document.onmousemove = this.pos;
			}
			tt.style.display = 'block';
			c.innerHTML = v;
			tt.style.width = w ? w + 'px' : 'auto';
			if(!w && ie){
				t.style.display = 'none';
				b.style.display = 'none';
				tt.style.width = tt.offsetWidth;
				t.style.display = 'block';
				b.style.display = 'block';
			}
			if(tt.offsetWidth > maxw){tt.style.width = maxw + 'px'}
			h = parseInt(tt.offsetHeight) + top;
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(1)},timer);
		},
		pos:function(e){
			var u = ie ? event.clientY + document.documentElement.scrollTop : e.pageY;
			var l = ie ? event.clientX + document.documentElement.scrollLeft : e.pageX;
			tt.style.top = (u - h) + 'px';
			tt.style.left = (l + left) + 'px';
		},
		fade:function(d){
			var a = alpha;
			if((a != endalpha && d == 1) || (a != 0 && d == -1)){
				var i = speed;
				if(endalpha - a < speed && d == 1){
					i = endalpha - a;
				}else if(alpha < speed && d == -1){
					i = a;
				}
				alpha = a + (i * d);
				tt.style.opacity = alpha * .01;
				tt.style.filter = 'alpha(opacity=' + alpha + ')';
			}else{
				clearInterval(tt.timer);
				if(d == -1){tt.style.display = 'none'}
			}
		},
		hide:function(){
			clearInterval(tt.timer);
			tt.timer = setInterval(function(){tooltip.fade(-1)},timer);
		}
	};
}();