// Storm Count Tally
// Author: Chlod
// Version: 1.0.0-REL

// Counts the total amount of storms on the WPTC Storm Count Tally. This makes
// counting typhoons easier and require less time, as long as the table is kept
// up to date.

mw.loader.using( 'oojs-ui-core' ).done(function () {
	// Find our tally
	var tally = document.getElementById("wptc-sct-table");
	var button = document.getElementById("wptc-sct-button");
	
	// Doesn't have a tally. Skip.
	if (tally == null || button == null) return;
	
	// Instance counting function
	function instances(arr) { var a = [], b = [], prev; arr.sort(); for (var i = 0; i < arr.length; i++) { if (arr[i] !== prev) { a.push(arr[i]); b.push(1); } else { b[b.length - 1]++; } prev = arr[i]; } return [a, b]; }

	// Total counting function
	function count(a) { var b = a.split("\t"); b = b.map(c => c.trim()); b = b.filter(c => `${c}`.length > 0); var r = instances(b); console.dir({"TD": +(r[1][0]) + +(r[1][1]) + +(r[1][2]), "TS": +(r[1][1]) + +(r[1][2]), "TY": +(r[1][2])}) } 
	
	function calculate() {
		var counts = {};
		var rows = document.querySelectorAll("[data-wptc-stc]");
		for (var row of rows) {
			var children = [...row.children].slice(1);
			var rowName = row.getAttribute("data-wptc-stc").trim();
			var countsString = "";
			
			for (var child of children) {
				countsString += `${child.innerText.trim()}\t`;
			}
			
			counts[rowName] = count(countsString);
		}
		
		alert(JSON.stringify(counts));
	}
	
	var b = new OO.ui.ButtonWidget( { 
		label: "Calculate"
	} );
	b.$element[0].setAttribute("type", "button");
	b.$element[0].onclick = calculate;
	button.appendChild(b.$element);
});