using Godot;

namespace DRPGActionGame.Player;

public partial class CameraController : Node3D {
	[Export] private float sensitivity = 5f;
	[Export] private SpringArm3D? springArm3D;
	[Export] private Player? player;

private const float maxXRot = .25f;
	private const float maxZoom = 2f;
	private const float minZoom = 10f;
	
	public override void _Ready() {
		Input.MouseMode = Input.MouseModeEnum.Captured;
		if (springArm3D is null) GD.PrintErr("No SprinArm3D found!");
		if (player is null) GD.PrintErr("No Player found!");
	}

	// public override void _Process(double delta) => GlobalPosition = GetParent<Node3D>().GlobalPosition;

	public override void _Input(InputEvent @event) {
		if (springArm3D != null) {
			springArm3D.SpringLength += @event.GetActionStrength("ZoomOut") - @event.GetActionStrength("ZoomIn");
			
			float viewLeftRight = @event.GetActionStrength("ViewLeft") - @event.GetActionStrength("ViewRight");
			float viewUpDown = @event.GetActionStrength("ViewUp") - @event.GetActionStrength("ViewDown");
			float xRot = Mathf.Clamp(Rotation.X - viewLeftRight / 1000 * sensitivity, -maxXRot, +maxXRot * 2);
			float yRot = Rotation.Y - viewUpDown / 1000 * sensitivity;
			GD.Print($"{viewLeftRight}:{viewUpDown} -> {xRot}:{yRot}");
			// Rotation = new(xRot, yRot, 0);
		}
		
		switch (@event) {
			case InputEventMouseMotion inputEventMouseMotion: {
				float xRot = Mathf.Clamp(Rotation.X - inputEventMouseMotion.Relative.Y / 1000 * sensitivity, -maxXRot, +maxXRot * 2);
				float yRot = Rotation.Y - inputEventMouseMotion.Relative.X / 1000 * sensitivity;
				Rotation = new(xRot, yRot, 0);
				break;
			}
			case InputEventMouseButton inputEventMouseButton: {
				if (inputEventMouseButton.ButtonIndex == MouseButton.WheelDown)
					if (springArm3D?.SpringLength < minZoom) springArm3D.SpringLength += 0.1f;
					else if (inputEventMouseButton.ButtonIndex == MouseButton.WheelUp)
						if (springArm3D?.SpringLength > maxZoom)
							springArm3D.SpringLength -= 0.1f;
				break;
			}
			case InputEventKey inputEventKey: {
				if (inputEventKey.Keycode == Key.Escape)
					Input.MouseMode = Input.MouseModeEnum.Visible;
				break;
			}
		}
	}
}