Controllers.prototype.downloads = (function(){
	'use strict';
	var tmpl = new Template(),
		apiObj = { 'reportQueue': null, 'scheduledReportsList': null };

	function Downloads(core, target, data, returnCB) {
		var eleDL = getElementFromString(tmpl.indexDL),
			eleSched = getElementFromString(tmpl.indexSched),
			note = eleDL.querySelector('.note'),
			tableDL, tableSched,
			timerID;

		this.exit = exit;
		checkQueue(initTable);
		target.appendChild(eleDL);
		target.appendChild(eleSched);
		if(returnCB) returnCB();

		function initTable(_, d) {
			clearTimeout(timerID);
			if(!core) return; // on the off chance we exited right as we started updating the table.
			note.classList.add('noDisplay');
			if(tableDL) tableDL.exit();
			if(tableSched) tableSched.exit();

			tableDL = NewMTable(eleDL.querySelector('.manageTable'), getTableDLData(d.reportQueue));
			tableDL.sort('name', 1);
			note.classList.remove('noDisplay');

			tableSched = NewMTable(eleSched.querySelector('.manageTable'), getTableSchedData(d.scheduledReportsList));
			tableSched.sort('freq', 1);
			loop(tableSched.qSA('a.hot'), function(_, e) {
				e.addEventListener('click', delSchedReport);
			});
			timerID = setTimeout(function() { checkQueue(initTable); }, 50 * 1000);
		}

		function exit() {
			if (!!tableDL) {
				tableDL.exit();
			}
			if (!!tableSched) {
				tableSched.exit();
			}
			if (!!eleDL) {
				target.removeChild(eleDL);
			}
			if (!!eleSched) {
				target.removeChild(eleSched);
			}
			core = target = data = returnCB = eleDL = eleSched = tableDL = tableSched = null;
		}

		function checkQueue(cb) { if(core) new ApiManager(apiObj, core.userID, cb); }

		function getTableDLData(data) {
			var tdata = data.map(function(v) {
				return {
					name: {title: v.name, value: v.createdAt},
					desc: (v.desc || 'n/a').replace(/00:00:00 \+0000 UTC/g, ''),
					expires: v.expiresAt ? formatTime(v.expiresAt - Date.now()) : 'N/A',
					status: getStatus(v)
				};
			});
			return {
				columns : {
					'name' : { 'title' : 'Name', 'valueType' : 'string', 'sortable' : true, 'width' : '260' },
					'desc' : { 'title' : 'Description', 'valueType' : 'string', 'sortable' : true, 'width' : '420' },
					'expires': { 'title' : 'Expires In', 'valueType' : 'string', 'sortable' : true, 'width' : '100' },
					'status': { 'title' : 'Status', 'valueType' : 'html', 'sortable' : true, 'width' : '110' }
				},
				'rowSelect': false,
				'rows' : tdata,
				'maxPerPage' : 10
			};
		}

		function getTableSchedData(data) {
			var freqMap = ['daily', 'weekly', 'monthly'];
			var tdata = (data||[]).map(function(v) {
				return {
					name: [v.userID, v.campaignID].filter(function(v) { return v != null }).join('-'),
					recip: v.recipient,
					freq: {title: v.frequency, value: freqMap.indexOf(v.frequency)},
					type: v.type,
					del: {title: 'Delete', html: '<a class="hot button auto smaller" data-id="' + v.id + '" href="#">Delete</a>'}
				};
			});
			return {
				"columns" : {
					"name" : { "title" : "Name", "valueType" : "string", "sortable" : true, "width" : "260" },
					"recip" : { "title" : "Recipient", "valueType" : "string", "sortable" : true, "width" : "270" },
					"freq" : { "title" : "Frequency", "valueType" : "string", "sortable" : true, "width" : "130" },
					"type": { "title" : "Type", "valueType" : "string", "sortable" : true, "width" : "120" },
					"del": { "title" : "Delete", "valueType" : "string", "sortable" : true, "width" : "110"}
				},
				"rowSelect": false,
				"rows" : tdata,
				"maxPerPage" : 10
			};
		}

		function delSchedReport(e) {
			preventDefault(e);
			var id = this.getAttribute('data-id');
			if(!id) return;
			new HttpRequest('DELETE', '/api/v1/scheduledReports/' + id, null, null, 'json', function() {
				checkQueue(initTable);
			});
		}

		function getStatus(v) {
			if(v.status === 1) return {value: 'Generating', title: '<span class="mist">generating</span>', noTitle: true};
			if(v.status === 2) return {value: 'Ready To Download', title: '<a target="_blank" href="' + reportUrl('/api/v1', core.userID, v) + '">download</a>', noTitle: true};
			if(v.status === 3) return {value: 'Error: ' + v.err, title: '<span class="hot">error</span>: ' + v.err, noTitle: true};
			console.error("invalid status", v);
		}
	}

	function Template(){
		var manageRow = '<div class="manageRow"><h2>Download Queue</h2></div>',
			manageTable = '<div class="manageTable"></div>',
			note = '<div class="note">* generated reports will self destruct after 24 hours, good luck agent.</div>',
			schedRow = '<div class="manageRow"><h2>Scheduled Reports</h2></div>',
			schedTable = '<div class="manageTable"></div>';
		this.indexDL = '<div class="managePage longTitle">' + manageRow + note + manageTable + '</div>';
		this.indexSched = '<div class="managePage longTitle">' + schedRow + schedTable + '</div>';
		this.fresh = '<div class="freshContainer"><h2 class="mist">There is nothing to download!</h2></div>';
	}

	function reportUrl(apiBase, uid, v) { return apiBase + '/reportDownload/' + uid + '/' + v.id + '/' + v.name; }

	function formatTime(diff) { var v = Math.floor(diff/1000); if(v > 3600) return (v/3600).toFixed(2) + 'h'; if(v < 60) return v.toFixed(2) + 's'; return (v/60).toFixed(2) + 'm'; }
	return function(core, target, data, returnCB) { return new Downloads(core, target, data, returnCB); };
})();