using System.Collections.Generic;
using Carotrauma.scripts.libs.input;
using Godot;

namespace Carotrauma.scenes.sandbox.player;

public partial class SandboxPlayer : CharacterBody3D, IInputProvider
{

	[Export]
	public float Speed = 5.0f;
	[Export]
	public float JumpVelocity = 4.5f;

	[Export] public float MouseSensitivity = 0.05f;

	// Get the gravity from the project settings to be synced with RigidBody nodes.
	public float gravity = ProjectSettings.GetSetting("physics/3d/default_gravity").AsSingle();

	private float camera_anglev = 0;
	private Node3D pivot;
	private Camera3D cam;

	private KeyInputAction GrabCursor;
	private KeyInputAction Jump;
	private VectorInputAction Movement;

	public void CreateInputs() {
		GrabCursor = this.KeyInput(Key.Escape);
		Jump = this.KeyInput(Key.Space);
		Movement = this.VectorKeyInput(Key.D, Key.A, Key.S, Key.W);
	}

	public override void _EnterTree() {
		CreateInputs();
	}

	public override void _Ready() {
		pivot = GetChild<Node3D>(2, true);
		cam = pivot.GetChild<Camera3D>(0, true);
	}

	public override void _Input(InputEvent @event) {
		if (@event is InputEventMouseMotion && Input.MouseMode == Input.MouseModeEnum.Captured) {
			var M = (InputEventMouseMotion)@event;

			pivot.RotateX(Mathf.DegToRad(-M.Relative.Y * MouseSensitivity));
			RotateY(Mathf.DegToRad(-M.Relative.X * MouseSensitivity));

			Vector3 cameraRot = pivot.RotationDegrees;
			cameraRot.X = Mathf.Clamp(cameraRot.X, -70, 70);
			pivot.RotationDegrees = cameraRot;
		}
	}

	public override void _PhysicsProcess(double delta) {

		if (GrabCursor.IsJustPressed())
			Input.MouseMode = Input.MouseMode == Input.MouseModeEnum.Visible ? Input.MouseModeEnum.Captured : Input.MouseModeEnum.Visible;

		Vector3 velocity = Velocity;

		// Add the gravity.
		if (!IsOnFloor())
			velocity.Y -= gravity * (float)delta;

		// Handle Jump.
		if (Jump.IsJustPressed() && IsOnFloor())
			velocity.Y = JumpVelocity;

		// Get the input direction and handle the movement/deceleration.
		// As good practice, you should replace UI actions with custom gameplay actions.
		Vector2 inputDir = Movement.GetStrength();
		Vector3 direction = (Transform.Basis * new Vector3(inputDir.X, 0, inputDir.Y)).Normalized();
		if (direction != Vector3.Zero)
		{
			velocity.X = direction.X * Speed;
			velocity.Z = direction.Z * Speed;
		}
		else
		{
			velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);
			velocity.Z = Mathf.MoveToward(Velocity.Z, 0, Speed);
		}

		Velocity = velocity;
		MoveAndSlide();
	}

	public List<InputAction> Actions => _actions;
	private List<InputAction> _actions = new();
}