import Signal from "@rbxts/signal";
import { createAnchor } from "Utils/Gui";
import { roundVector } from "Utils/Math";

export class Handles {
	currentVector: Vector3 = new Vector3();
	anchor: Part;
	valueChanged = new Signal<(newValue: Vector3) => void>();

	constructor(model: Folder, startPosition: Vector3 = Vector3.zero, anchor = createAnchor(model, startPosition)) {
		this.anchor = anchor;

		const handles = new Instance("Handles");
		handles.Adornee = this.anchor;
		handles.Parent = model;
		handles.MouseButton1Down.Connect(() => {
			this.currentVector = this.anchor.Position;
		});
		handles.MouseDrag.Connect((face, distance) => {
			// Apply the changes to the anchor's position
			let offset = Vector3.zero;

			switch (face) {
				case Enum.NormalId.Right:
					offset = new Vector3(distance, 0, 0);
					break;
				case Enum.NormalId.Left:
					offset = new Vector3(-distance, 0, 0);
					break;
				case Enum.NormalId.Top:
					offset = new Vector3(0, distance, 0);
					break;
				case Enum.NormalId.Bottom:
					offset = new Vector3(0, -distance, 0);
					break;
				case Enum.NormalId.Front:
					offset = new Vector3(0, 0, -distance);
					break;
				case Enum.NormalId.Back:
					offset = new Vector3(0, 0, distance);
					break;
			}

			this.anchor.Position = roundVector(this.currentVector.add(offset));
		});

		handles.MouseButton1Up.Connect(() => {
			const newpos = this.anchor.Position;
			this.valueChanged.Fire(newpos);
		});
	}
}