using System.ComponentModel;
using LuckerGame.Components.Pawn;
using Sandbox;

namespace LuckerGame.Entities;

/// <summary>
/// Represents an entity in the world. Could be controlled by a Lucker or a minigame
/// </summary>
public partial class Pawn : AnimatedEntity
{
	[ClientInput]
	public Vector3 InputDirection { get; set; }
	
	[ClientInput]
	public Angles ViewAngles { get; set; }

	/// <summary>
	/// Position a player should be looking from in world space.
	/// </summary>
	[Browsable( false )]
	public Vector3 EyePosition
	{
		get => Transform.PointToWorld( EyeLocalPosition );
		set => EyeLocalPosition = Transform.PointToLocal( value );
	}

	/// <summary>
	/// Position a player should be looking from in local to the entity coordinates.
	/// </summary>
	[Net, Predicted, Browsable( false )]
	public Vector3 EyeLocalPosition { get; set; }

	/// <summary>
	/// Rotation of the entity's "eyes", i.e. rotation for the camera when this entity is used as the view entity.
	/// </summary>
	[Browsable( false )]
	public Rotation EyeRotation
	{
		get => Transform.RotationToWorld( EyeLocalRotation );
		set => EyeLocalRotation = Transform.RotationToLocal( value );
	}

	/// <summary>
	/// Rotation of the entity's "eyes", i.e. rotation for the camera when this entity is used as the view entity. In local to the entity coordinates.
	/// </summary>
	[Net, Predicted, Browsable( false )]
	public Rotation EyeLocalRotation { get; set; }

	public BBox Hull
	{
		get => new
		(
			new Vector3( -16, -16, 0 ),
			new Vector3( 16, 16, 64 )
		);
	}

	[BindComponent] public UserPawnController Controller { get; }
	[BindComponent] public PawnAnimator Animator { get; }

	public override Ray AimRay => new Ray( EyePosition, EyeRotation.Forward );

	/// <summary>
	/// Called when the entity is first created 
	/// </summary>
	public override void Spawn()
	{
		SetModel( "models/citizen/citizen.vmdl" );

		EnableDrawing = true;
		EnableHideInFirstPerson = true;
		EnableShadowInFirstPerson = true;
	}

	public void Respawn()
	{
		Components.Create<UserPawnController>();
		Components.Create<PawnAnimator>();
	}

	public void DressFromClient( IClient cl )
	{
		var c = new ClothingContainer();
		c.LoadFromClient( cl );
		c.DressEntity( this );
	}

	public override void Simulate( IClient cl )
	{
		SimulateRotation();
		Controller?.Simulate( cl );
		Animator?.Simulate();
	}

	public override void BuildInput()
	{
	}

	public override void FrameSimulate( IClient cl )
	{
		SimulateRotation();
	}

	public TraceResult TraceBBox( Vector3 start, Vector3 end, float liftFeet = 0.0f )
	{
		return TraceBBox( start, end, Hull.Mins, Hull.Maxs, liftFeet );
	}

	public TraceResult TraceBBox( Vector3 start, Vector3 end, Vector3 mins, Vector3 maxs, float liftFeet = 0.0f )
	{
		if ( liftFeet > 0 )
		{
			start += Vector3.Up * liftFeet;
			maxs = maxs.WithZ( maxs.z - liftFeet );
		}

		var tr = Trace.Ray( start, end )
					.Size( mins, maxs )
					.WithAnyTags( "solid", "playerclip", "passbullets" )
					.Ignore( this )
					.Run();

		return tr;
	}

	protected void SimulateRotation()
	{
		var idealRotation = ViewAngles.ToRotation();
		EyeRotation = Rotation.Slerp( Rotation, idealRotation, Time.Delta * 10f );
		Rotation = EyeRotation;
	}
}