var Agencies = function(core, target, data, returnCB){
	var events = new EventManager,
		template = new AgenciesTemplate,
		element = getElementFromString(render(template.index, null)),
		elements = null,
		data = null;
		
	this.search = search;
	this.exit = exit;
	
	new ApiManager({ 'agenciesList' : null }, null, init);

	function init(error, d){
		data = getDataObj(d);		
		
		initHeader();		
		setElements();
		if(!error) initTable();
		else if(getEmptyState(error)) initFresh();
		setButtons(getSimpleJSONCopy(clientsButtonObj));
		
		if(returnCB) returnCB();
		insertElement();
	}
	
	function search(e){
		var tbl = elements.table;
		if(!tbl){
			return;
		}

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

	function initHeader(){ var h = element.querySelector('header'); events.add(h.querySelector('a'), 'click', popAnchor); }

	function initTable(){
		elements.actions = element.querySelector('actions');
		data.table.rows.sort(function(a, b) { return parseInt(a.id) < parseInt(b.id) ? -1 : 1; });
		elements.table = NewMTable(element.querySelector('.manageTable'), data.table, tableUpdate); tableUpdate();
	}

	function initFresh(){ elements.fresh = getElementFromString(template.fresh); hideManage(); data.table.rows = []; element.appendChild(elements.fresh); }
	function insertElement(){ target.appendChild(element); }
	
	function Agency(o, i){
		this.id = isDefined(o.id) ? o.id : null;
		this.name = isDefined(o.name) ? o.name : '[Not set]';
	}

	function getDataObj(o){ var d = getSimpleJSONCopy(AgencyTemplateData); d.table.rows = getAgencyList(o.agenciesList); return d; }
	function getEmptyState(e){ return e[0].error == getAPIErrorMessage('noMatch'); }
	function getAgencyList(d){
		var a = [];
		forEach(d, p);
		return a;
		function p(t, d, i){ a.push(new Agency(t, i)); }
	}

	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 = elements.table.getSelectedRows()[0].getData().id;
		if(e && e.preventDefault) e.preventDefault();
		ga('send', 'event', 'Admins', 'Switch to agency', id);
		core.switchUser(id);
	}

	function delAction(e){ if(e && e.preventDefault) e.preventDefault(); new ApiDelete(data, elements.table.getSelectedRows(), 'agencies', core.userID, updateActionCB); }
	function refreshTable(){ if(elements.table) elements.table.exit(); initTable(); }
	function tableUpdate(){ var l = elements.table.getSelectedRows().length, t = elements.actions; if(l == 1) showSwitch(); else if(l > 1) hideSwitch(); else hideActions(); }

	function updateActionCB(e){ updateErrorCheck(e); getAgenciesList(updateAgenciesList); }
	function updateErrorCheck(e){
		for(var k in e){
			if(isDefined(e[k]) && e[k].error === true){
				new core.notifications.setError(e[k].message);
				return true;
			} 
		}		
	}

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

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

	function getAgenciesList(cb){ new ApiManager({ 'agenciesList' : null }, null, cb); }
	function updateAgenciesList(e, o){ data = getDataObj(o); refreshTable(); }

	function hideSwitch(){ elements.switch.classList.add('noDisplay'); showActions(); }
	function showSwitch(){ elements.switch.classList.remove('noDisplay'); showActions(); }

	function hideActions(){ elements.actions.classList.add('noDisplay'); }
	function showActions(){ elements.actions.classList.remove('noDisplay'); }
	
	function switchCheck(l){ if(l > 1) unsetSwitchButton(); else setSwitchButton(); }
	function setSwitchButton(){ elements.switch.style.display = ''; }
	function unsetSwitchButton(){ elements.switch.style.display = 'none'; }

	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; }
};