// ajax setup
var xmlHttp = false;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
try {
  xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    xmlHttp = false;
  }
}
@end @*/

if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}

function already_loved_post(post_id, cookie){
	if (cookie = readCookie(cookie)){
		cookies = cookie.split('&');
		for(i = 0; i < cookies.length; i++){
			if (post_id == cookies[i]) return true;
		}
	}
	return false;
}

//ajax calls

//set variables
var counter_obj;
var post_id_heart;
var el_id_heart;

function show_love_count() {
 	if (xmlHttp.readyState == 4) {
	    var response = xmlHttp.responseText;
		counter_obj.innerHTML = response;
		counter_obj = null;
	}
}

function show_if_loved() {
 	if (xmlHttp.readyState == 4) {
	    var response = xmlHttp.responseText;
		counter_obj.innerHTML = response;
		counter_obj = null;
		//populate number at top also
		process_love(el_id_heart, post_id_heart);
		post_id_heart = null;
		el_id_heart = null;
	}
}

function process_love(id, post_id){
	track_love = false;
	counter_obj = document.getElementById(id);
	existing_cookie = readCookie('ltp');
	loved_post = already_loved_post(post_id, 'ltp');
	
	//check if i should track or not
	if (existing_cookie && loved_post){
		track_love = 'no';
	}
	else if (existing_cookie){
		createCookie('ltp', existing_cookie +'&'+ post_id, 365);
		track_love = 'yes';
	}
	else{
		createCookie('ltp', post_id, 365);
		track_love = 'yes';
	}
	
	//see what the cookie has now
	new_cookie = readCookie('ltp');
	
	//if post hasn't been loved, track it
	//alert('loved: '+ new_cookie);
	var url = "http://blog.tuesday.com/wp-content/plugins/love-this-post/_process_love.php?post_id=" + escape(post_id) + "&track_love=" + track_love;

	// Open a connection to the server
	xmlHttp.open("GET", url, true);
	
	// Setup a function for the server to run when it's done
	xmlHttp.onreadystatechange = show_love_count;
	
	// Send the request
	xmlHttp.send(null);
}

function show_love(id, post_id, heart_id){
	track_love = false;
	counter_obj = document.getElementById(id);
	existing_cookie = readCookie('ltp');
	loved_post = already_loved_post(post_id, 'ltp');
	
	if (heart_id != undefined){
		post_id_heart = post_id;
		el_id_heart = heart_id;
	}
	
	//check if i should track or not
	if (existing_cookie && loved_post){
		track_love = 'no';
	}
	else if (existing_cookie){
		createCookie('ltp', existing_cookie +'&'+ post_id, 365);
		track_love = 'yes';
	}
	else{
		createCookie('ltp', post_id, 365);
		track_love = 'yes';
	}
	
	//see what the cookie has now
	new_cookie = readCookie('ltp');
	
	//alert('loved: '+ new_cookie);
	var url = "http://blog.tuesday.com/wp-content/plugins/love-this-post/_show_love.php?post_id=" + escape(post_id) + "&track_love=" + track_love;

	// Open a connection to the server
	xmlHttp.open("GET", url, true);
	
	// Setup a function for the server to run when it's done
	xmlHttp.onreadystatechange = show_if_loved;
	
	// Send the request
	xmlHttp.send(null);
}