using Godot;
using System;
using System.Diagnostics;

public partial class player : CharacterBody3D
{
	public const float Speed = 5.0f;
	public const float JumpVelocity = 4.5f;
	public float gravity = ProjectSettings.GetSetting("physics/3d/default_gravity").AsSingle();
	[Export (PropertyHint.Range, "0.1,1.0")] float mouseSensitivity = 0.3f;
	[Export (PropertyHint.Range, "-90,0,1")] float minCamPitch = -90f;
	[Export (PropertyHint.Range, "0,90,1")] float maxCamPitch = 90f;
	public Marker3D cameraCenter;
	public Camera3D camera;
	public Vector3 camPosition;
	public Vector3 playerResetPosition;
	//TODO: Add camera max rotation on ground (Preventing turning camera to upside down)
    public override void _Ready()
	{
        cameraCenter = GetNode<Marker3D>("camera_center");
        camera = GetNode<Camera3D>("camera_center/spring_arm/camera");
        mouseSensitivity = mouseSensitivity * 0.005f;
        Input.MouseMode = Input.MouseModeEnum.Captured;
    }
	public override void _Process(double delta)
	{
        if (Input.IsActionJustPressed("uncapture_mouse")) Input.MouseMode = Input.MouseModeEnum.Visible;
        if (Input.IsMouseButtonPressed(MouseButton.Left)) Input.MouseMode = Input.MouseModeEnum.Captured;//just uncapture to also disable player and camera movement
        if (Input.IsActionJustPressed("move_forward") || Input.IsActionJustPressed("move_forward") && Input.MouseMode == Input.MouseModeEnum.Captured)
		{
			/*TODO: make this for all movement input not just forward
			and model should still walk sideways and to the camera then. 

			Would work with just using all inputs
			but model doesnt rotate how it should*/
			playerResetPosition = Rotation; 
            camPosition = cameraCenter.Rotation;
			playerResetPosition.y = camPosition.y * -1f;
			Rotation -= playerResetPosition;
			cameraCenter.Rotation = new Vector3 (camPosition.x,0,0);
		}
    }
	public override void _PhysicsProcess(double delta)
	{
		Vector3 velocity = Velocity;

		if (!IsOnFloor())
			velocity.y -= gravity * (float)delta;

		if (Input.IsActionJustPressed("move_jump" ) && Input.MouseMode == Input.MouseModeEnum.Captured && IsOnFloor())
			velocity.y = JumpVelocity;

		Vector2 inputDir = Input.GetVector("move_left", "move_right", "move_forward", "move_backward");
		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);
		}
		if(Input.MouseMode == Input.MouseModeEnum.Captured)
		{
			Velocity = velocity;
		}
		MoveAndSlide();
	}
	public override void _Input(InputEvent @event)
	{
		if(@event is InputEventMouseMotion motionEvent && Input.MouseMode == Input.MouseModeEnum.Captured)
		{
			Vector3 generalRot = Rotation;
            if (Input.IsActionPressed("move_forward")) generalRot.y -= motionEvent.Relative.x * mouseSensitivity;
            Rotation = generalRot;
            generalRot = cameraCenter.Rotation;
            if (!Input.IsActionPressed("move_forward")) generalRot.y -= motionEvent.Relative.x * mouseSensitivity;
            generalRot.x -= motionEvent.Relative.y * mouseSensitivity;
            generalRot.x = Mathf.Clamp(generalRot.x, minCamPitch, maxCamPitch);
			cameraCenter.Rotation = generalRot;
            generalRot = cameraCenter.Rotation;
        }
	}
}