// ==UserScript==
// @name           Friend or Foe
// @version        1.0.2
// @author         TheRedTeam
// @namespace      reddit
// @description    Create list of friends and foes and perform actions on them
// @include        *reddit.com/r/*
// @exclude        *iframe*reddit.com/*
// ==/UserScript==

/*
Changelog:
09/23/10:1.0.0: First release, works decent
09/23/10:1.0.1: Fixed race condition if multiple tabs open
11/01/10:1.0.2: Fixed opacity disallowing link clicking on right floating div

*/
 

// current lists
var friend_list = [];
var foe_list = [];
var fof_user = "";
var fof_usercolors = []; // cache of link colors

// reddit can't handle clicking things too fast or it will miss some
// so we save all objects to click in an array, and use an interval on a timer
// this does the clicking asycronously in the background for us
var clicklist = new Array();
var clickinterval = null;

// prototype the crap out of the array object
Array.prototype.has = function (obj) {
	for (var i = 0, j = this.length; i < j; i++) {
		if (this[i] == obj)
			return true;
	}
	return false;
};
Array.prototype.remove = function(obj) {
  for(i=0; i<this.length; i++)
	if(this[i] == obj){
		this.splice(i, 1);
		i--;
	}
};


// get jquery from reddit
$ = unsafeWindow.$;

// add menu bar items
var mymenu = document.createElement("div");
mymenu.className = "sidecontentbox";
var side = document.getElementsByClassName("side")[0];
side.style.zIndex = 100;
side.insertBefore(mymenu,side.firstChild);
// we do inline CSS here to override reddit's styles because 
// they use the !important attribute on everything >:(
mymenu.innerHTML = "<div class='content' style='-moz-border-radius-bottomright: 10px; -moz-border-radius-bottomleft: 10px; border-top: 0px; background-color: #FFFFBB;'> \
					<div style='text-align: center; border-bottom: 1px solid #888;'><span style='font-family: arial; font-size: 14px; font-weight: bold; color: #996633;'>Friend or Foe</span></div> \
					<div style='margin-bottom: 5px; font-family: arial; font-size: 10px; color: #444;'><span id='fofcounts'></span> (<a href='javascript:userViewLists();'>details</a>)</div> \
					<ul>   \
						<li><a href='javascript: autoh();'>auto-hide</a></li> \
					</ul> \
					<div style='margin-top: 5px; font-family: arial; font-size: 10px; color: #444;' id='fofstatus'></div> \
					</div>";




/*
########################  Start Helper Functions ############################
*/

unsafeWindow.userViewLists = 
function(){
	alert("Friends: "+friend_list.toString()+"\n\nFoes: "+foe_list.toString());
};


function userSetCounts(){
	var counts = document.getElementById('fofcounts');
	counts.innerHTML = friend_list.length+" friends and "+foe_list.length+" foes";
};

// pull lists
function getlists(){
	var t1 = GM_getValue('fof_foelist','');
	var t2 = GM_getValue('fof_friendlist','');
	// see if there is a difference
	if(t1=='') foe_list = [];
	else foe_list = t1.split(',');
	if(t2=='') friend_list = [];
	else friend_list = t2.split(',');
}

// save changes to lists
function savelists(){
	// get current lists again to see if another tab/window updated anything
	var t1 = GM_getValue('fof_foelist','');
	var t2 = GM_getValue('fof_friendlist','');
	// if difference save changes
	if(t1 != foe_list.toString()){
		GM_setValue('fof_foelist',foe_list.toString());
	}
	if(t2 != friend_list.toString()){
		GM_setValue('fof_friendlist',friend_list.toString());
	}
}



// Add a Foe function
unsafeWindow.userAddFoe =  
function(s){ 
	fof_user = s;
	// run in timeout so we can call GM_ funcs
	setTimeout(
		function (){
			if(foe_list.has(fof_user)) 
				return;
			getlists();
			foe_list.push(fof_user);
			savelists();
			addButtons();
			userSetCounts();
			setstatus("Set '"+fof_user+"' as Foe");
		},
	0); 
};

// Add a Friend function
unsafeWindow.userAddFriend =  
function (s){ 
	fof_user = s;
	// run in timeout so we can call GM_ funcs
	setTimeout(
		function (){
			if(friend_list.has(fof_user)) 
				return;
			getlists();
			friend_list.push(fof_user);
			savelists();
			addButtons();
			userSetCounts();
			setstatus("Set '"+fof_user+"' as Friend");
		},
	0); 
};

// unset user from both friend and foe lists
unsafeWindow.userUnset =  
function (s){ 
	fof_user = s;
	// run in timeout so we can call GM_ funcs
	setTimeout(
		function (){
			getlists()
			friend_list.remove(fof_user);
			foe_list.remove(fof_user);
			savelists();
			addButtons();
			userSetCounts();
			setstatus("Removed '"+fof_user+"' from lists");
		},
	0); 
};

// create click event to use on divs and anchor tags
function clickevent(){
	var evt = document.createEvent("MouseEvents");
	evt.initMouseEvent("click", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null);
	return evt;
}

// shortcut to set the status
function setstatus(s){
	var stat = document.getElementById('fofstatus');
	stat.innerHTML = stat.innerHTML+s+"<br>";
}

// loop through and click everything in the list
// note we kill the interval that calls this when the list is empty
function clickloop(){
	if(clicklist.length==0){
		clickinterval = null;
		return;
	}
	var elm = clicklist.pop();
	elm.dispatchEvent(clickevent());
}

// get a css property, you'd think this would be easier... 
function getStyle(x,styleProp)
{
	if (x.currentStyle)
		var y = x.currentStyle[styleProp];
	else if (window.getComputedStyle)
		var y = document.defaultView.getComputedStyle(x,null).getPropertyValue(styleProp);
	return y;
}





/*
########################  Start Main Functions ############################
*/


function addButtons(){
	// div that holds all the submissions
	var t = document.getElementsByClassName("midcol");
	// loop through submissions
	for(i=0; i < t.length; i++){
		// parent node is the div container for the submission
		submission = t[i].parentNode;
		// try to find the username
		var userbox = submission.getElementsByClassName("tagline")[0];
		var title = submission.getElementsByClassName("title loggedin")[0];
		// if in the recently viewed box (no username shown there) skip it
		try{
			var user = userbox.getElementsByTagName("a")[0];
		}catch(e){
			continue; // no username section
		}
		if(user == undefined)
			continue; // user is [deleted]
		var username = user.innerHTML;
		// save reddit's user colors so we can reset if needed
		if(fof_usercolors[username]==undefined){
			fof_usercolors[username] = getStyle(user, "color");
		}
		// now chose what colors to use according to the user
		if(foe_list.has(username)){
			user.style.color = fof_usercolors[username]; //"#336699"
			$(submission).css('opacity',0.3);
			submission.style.marginRight = "300px"; // opacity annoyance
		}
		else if(friend_list.has(username)){
			user.style.color = "#00AA00";
			title.style.color = "#00AA00";
			$(submission).css('opacity',1);
		}
		else{
			user.style.color = fof_usercolors[username]; //"#336699"
			title.style.color = "inherit";
			$(submission).css('opacity',1);
		}
		// see if userops is already set, if not append it
		var userops = userbox.getElementsByClassName("userops")[0];
		if(userops == undefined){
			userops = document.createElement("span");
			userops.className = "userops";
			userbox.appendChild(userops);
		}
		// now fill with appropriate links
		if(foe_list.has(username) | friend_list.has(username))
			userops.innerHTML = " (<a style='color: #666;' href=\"javascript:userUnset('"+username+"');\">unset</a>)";
		else 
			userops.innerHTML = " (<a style='color: #666;' href=\"javascript:userAddFoe('"+username+"');\">foe</a>|<a style='color: #666;' href=\"javascript:userAddFriend('"+username+"');\">friend</a>)";
	}
}


// This goes through and clicks the "hide" button on the submissions
// we add it to the reddit context so the link we add can call it
unsafeWindow.autoh =  
function (){
	// div that holds all the submissions
	var t = document.getElementsByClassName("midcol");
	var c = 0;
	var v = 0;
	// loop through submissions
	for(i=0; i < t.length; i++){
		// parent node is the div container for the submission
		submission = t[i].parentNode;
		var userbox = submission.getElementsByClassName("tagline")[0];
		// if in the recently viewed box (no username shown there) skip it
		try{
			var username = userbox.getElementsByTagName("a")[0].innerHTML;
		}catch(e){
			continue; // no username section
		}
		// if not a bad user, skip this iteration
		if(!foe_list.has(username))
			continue;
		c++;
		// hide it if it's down voted only
		if(t[i].className == "midcol dislikes"){
			// add object to click to the clicklist
			clicklist.push(submission.getElementsByClassName('state-button hide-button')[0].getElementsByTagName('a')[0]);
			v++;
		}
    }
	// start hiding (3 second time due to stupid fade out effect)
	clickinterval = setInterval(clickloop, 3000);
	// set status
	setstatus("Hid "+v+" of "+c+" bad submissions");
}; 




// function to perform action on submissions
function autov(){
	try{
	// get all submissions
	var t = document.getElementsByClassName("midcol");
	// loop through unvoted submissions
	var c = 0;
	var v = 0;
	for(i=0; i < t.length; i++){
		// parent node is the div container for the submission
		var submission = t[i].parentNode;
		// now get the appropriate objects we check
		var downarrow = submission.getElementsByClassName("arrow down")[0];
		var userbox = submission.getElementsByClassName("tagline")[0];
		// if in the recently viewed box (no username shown there) skip it
		try{
			var username = userbox.getElementsByTagName("a")[0].innerHTML;
		}catch(e){
			continue; // no username section
		}
		// if not a bad user, skip this iteration
		if(!foe_list.has(username))
			continue;
		c++;
		// if not already down voted, down vote it
		if(t[i].className == "midcol unvoted"){
			// save arrow to an array for down-voting later
			clicklist.push(downarrow);
			v++;
		}
    }
	// start down voting form the list we made (1 second timer)
	clickinterval = setInterval(clickloop, 1000);
	// set status
	if(c==0)
		setstatus("No bad submissions found");
	else 
		setstatus("Auto down voted "+v+" of "+c+" bad submissions");
	}
	catch(e){
		setstatus("Error: "+e);
	}
}




/*
########################  Begin auto-procedures ############################
*/
					
// do auto-voting only if we are on a table with submissions listed
if(document.getElementById('siteTable') != null){
	getlists();
	userSetCounts();
	autov();
	addButtons();
}