/**
 * An After Effects scripts panel that toggles shy states on layers
 *
 *
 */
// basic panel
run(thisObj);

function run(thisObj) {
	// this is global
	data = {
		refreshing: false,
		layerlist: [],
		selectedLayer: {
			index: 0,
		},
	};

	///   THIS WILL CHECK IF PANEL IS DOCKABLE OR FLAOTING WINDOW
	var win = buildUI(thisObj);
	if (win !== null && win instanceof Window) {
		win.center();
		win.show();
	} // end if win null and not a instance of window

	function buildUI(thisObj) {
		var win =
			thisObj instanceof Panel
				? thisObj
				: new Window("palette", "PANEL LABEL", [0, 0, 150, 260], {
						resizeable: true,
						name: "aPanel",
					});

		if (win !== null) {
			var H = 25; // the height
			var W = 30; // the width
			var G = 5; // the gutter
			var x = G;
			var y = G;

			win.refresh = win.add("button", [x, y, x + W * 3, y + H], "refresh");
			x = x + W * 3 + G;
			win.reset = win.add("button", [x, y, x + W * 3, y + H], "reset");
			x = G;
			y += H + G;
			win.ddlist = win.add(
				"dropdownlist",
				[x, y, x + W * 6 + G, y + H],
				data.layerlist,
			);
			win.ddlist.selection = 0;

			win.reset.onClick = function () {
				reset();
			};
			win.refresh.onClick = function () {
				var curComp = app.project.activeItem;
				if (!curComp || !(curComp instanceof CompItem)) {
					alert("please select a comp");
					return;
				}
				data.refreshing = true;
				data.layerlist = [];
				win.ddlist.removeAll();
				for (var i = 1; i < curComp.numLayers + 1; i++) {
					data.layerlist.push({
						name: curComp.layers[i].name,
						index: curComp.layers[i].index,
					});
					win.ddlist.add(
						"item",
						String(curComp.layers[i].index + ": " + curComp.layers[i].name),
					);
				}
				win.ddlist.selection = 0;
				data.refreshing = false;
			};

			win.ddlist.onChange = function () {
				if (data.refreshing === false) {
					$.writeln(win.ddlist.selection.index + 1);
					data.selectedLayer.index = win.ddlist.selection.index + 1;
				}
				isolate();
			};
		}
		return win;
	}

	function reset() {
		var curComp = app.project.activeItem;
		if (!curComp || !(curComp instanceof CompItem)) {
			alert("please select a comp");
			return;
		}
		for (var i = 1; i < curComp.numLayers + 1; i++) {
			curComp.layers[i].shy = false;
		}
		curComp.hideShyLayers = false;
	}
	function isolate() {
		var curComp = app.project.activeItem;
		if (!curComp || !(curComp instanceof CompItem)) {
			alert("please select a comp");
			return;
		}

		app.beginUndoGroup("something");
		for (var i = 1; i < curComp.numLayers + 1; i++) {
			if (curComp.layers[i].index !== data.selectedLayer.index) {
				curComp.layers[i].shy = true;
			} else {
				curComp.layers[i].shy = false;
			}
		}
		if (data.refreshing === false) curComp.hideShyLayers = true;
		app.endUndoGroup();
	}
}