using System.Collections.Generic;
using System.Linq;
using Godot;
using Godot.Collections;

namespace Evolution.scripts; 

public partial class ShootController : Node {
	[Export] private Node3D blaster;
	[Export] private GpuParticles3D shootParticle;
	[Export] private Camera3D camera;
	public override void _Ready() => GD.Print($"{blaster}: {shootParticle}");

	public override void _Input(InputEvent @event) {
		switch (@event) {
			case InputEventMouseButton eventMouseButton:
				shootParticle.Emitting = eventMouseButton.Pressed;
				break;
			case InputEventMouseMotion eventMouseMotion:
				Vector2 mousePosition = eventMouseMotion.Position;
				Vector3 raycastFrom = camera.ProjectRayOrigin(mousePosition);
				Vector3 raycastTo = camera.ProjectRayNormal(mousePosition);
				PhysicsDirectSpaceState3D spaceState = camera.GetWorld3D().DirectSpaceState;
				PhysicsRayQueryParameters3D query = PhysicsRayQueryParameters3D.Create(raycastFrom, raycastTo);
				Dictionary raycastResults = spaceState.IntersectRay(query);
				foreach (KeyValuePair<Variant,Variant> raycastResult in raycastResults) {
					if (raycastResult.Key.AsString() == "position") {
						GD.Print($"raycastResult.Position = {raycastResult.Value}");
						blaster.LookAt(raycastResults.FirstOrDefault().Value.AsVector3());
					}
				}
				break;
		}
	}
}