var Advertisers = function(core, target, data, returnCB){
	var events = new EventManager,
		template = new AdvertisersTemplate,
		element = getElementFromString(render(template.index, null)),
		elements = null,
		data = null;

	this.search = search;
	this.exit = exit;
	new ApiManager({
		'advertiserList' : null,
		'spendHistory7' : { 'source' : 'spendHistory/byAgency/' + core.userID + "/7", 'noID' : true },
		'spendHistory30' : { 'source' : 'spendHistory/byAgency/' + core.userID + "/30", 'noID' : true }
	}, core.userID, init);

	function init(error, d){
		data = getDataObj(d);

		initHeader();
		setElements();
		if(getEmptyState(error)) initFresh()
		else initTable();
		setButtons(getSimpleJSONCopy(clientsButtonObj));

		if(returnCB) returnCB();
		insertElement();
	}

	function initHeader(){ var h = element.querySelector('header'); events.add(h.querySelector('a'), 'click', popAnchor); }
	function initTable(){
		var d = data.table,
			tableEle = element.querySelector('.manageTable');
		d.rows.sort(function(a, b) { return parseInt(a.id) < parseInt(b.id) ? -1 : 1; });
		elements.actions = element.querySelector('actions');
		elements.table = NewMTable(tableEle, d, tableUpdate);
		tableUpdate();
	}
	function initFresh(){ elements.fresh = getElementFromString(template.fresh); hideManage(); data.table.rows = []; element.appendChild(elements.fresh); }
	function insertElement(){ target.appendChild(element); }

	function Advertiser(o, spent7, spent30){
		this.id = isDefined(o.id) ? o.id : null;
		this.name = isDefined(o.name) ? o.name : '[Not set]';
		this.status = isDefined(o.status) && o.status == true ? 'On' : 'Off';
		this.spent7 = spent7;
		this.spent30 = spent30;
		this.conversions = isDefined(o.conversions) ? o.conversions : 0;
		this.numCmps = o.numCmps;
	}

	function search(e){
		var tbl = elements.table;
		if(!tbl){
			return;
		}

		tbl.search("name", e.target.value);
	}

	function getDataObj(o){
		var d = getSimpleJSONCopy(clientsDummyData);
		d.table.rows = getList(o);
		return d;
	}

	function getEmptyState(e){ return isArray(e) && e.length > 0 && e[0].error == getAPIErrorMessage('noMatch'); }
	function getList(d){
		var a = [],
			list = d.advertiserList,
			spend7 = d.spendHistory7,
			spend30 = d.spendHistory30;

		forEach(list, p);
		return a;

		function p(t){
			var spent7 = 0,
				spent30 = 0,
				sh7 = spend7[t.id] || [],
				sh30 = spend30[t.id] || [];

			sh7.forEach(function(v) { spent7 += v.usd; });
			sh30.forEach(function(v) { spent30 += v.usd; });
			a.push(new Advertiser(t, spent7, spent30));
		}
	}

	function setElements(){
		elements = new Elements(element, {
			'switch'  : { 'selector' : '.switchButton' },
			'edit' : { 'selector' : '.editButton' },
			'del' : {}, 'fresh' : {}, 'table' : {}, 'actions' : {}, 'rows' : {}
		});
	}
	function setButtons(buttonsObj){
		elements.del = new ConfirmationButton(element.querySelector('.del'), buttonsObj.del, delAction);
		events.add(elements.switch, 'click', switchAction);
		events.add(elements.edit, 'click', editAction);
	}

	function hideManage(){ element.querySelector('.manageRow').classList.add('noDisplay'); }

	function switchAction(e){
		var id = getSelectedRowId();
		if(e && e.preventDefault) e.preventDefault();
		ga('send', 'event', 'Advertisers', 'Switch to advertiser', id);
		core.switchUser(id);
	}

	function editAction(e){
		if(e && e.preventDefault) e.preventDefault();
		pop('Pop!', 'Advertisers - Edit', '/dashboard/advertisers/edit/' + getSelectedRowId());
	}

	function getSelectedRowId(){ return elements.table.getSelectedRows()[0].getData().id; }

	function delAction(e){ if(e && e.preventDefault) e.preventDefault(); new ApiDelete(data, elements.table.getSelectedRows(), 'advertisers', core.userID, updateActionCB); }
	function refreshTable(){ if(elements.table) elements.table.exit(); initTable(); }
	function tableUpdate(){
		var l = elements.table.getSelectedRows().length;

		if(l == 1){
			showSingleActions();
		} else if(l > 1){
			hideSingleActions();
		} else {
			hideActions();
		}
	}

	function updateActionCB(e){ updateErrorCheck(e); getAdvertisersList(updateAdvertisersList); }
	function updateErrorCheck(e){
		for(var k in e){
			if(isDefined(e[k]) && isDefined(e[k].error)){
				new core.notifications.setError(e[k].message);
				return true;
			}
		}
	}
	function getAdvertisersList(cb){
		new ApiManager({ 'advertiserList' : null, 'campaigns' : { 'source' : 'campaigns/byAgency' } }, core.userID, cb);
	}

	function updateAdvertisersList(e, o){
		data = getDataObj(o); refreshTable();
	}

	function hideSingleActions(){ elements.switch.classList.add('noDisplay'); elements.edit.classList.add('noDisplay'); showActions(); }
	function showSingleActions(){ elements.switch.classList.remove('noDisplay'); elements.edit.classList.remove('noDisplay'); showActions(); }

	function hideActions(){ elements.actions.classList.add('noDisplay'); }
	function showActions(){ elements.actions.classList.remove('noDisplay'); }

	function exit(){ if(element) removeChild(target, element); if(events) events.reset(); if(elements) elements.exit(); housekeeping(); }
	function housekeeping(){ core = target = data = returnCB = events = template = element = data = elements = null; }
};