using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Cirno._3D.TrenchBroom.EntityScripts.Triggers;
using Cirno.Scripts.Components.FSM;
using Cirno.Scripts.Components.FSM._3DPlayer;
using Godot;
using Godot.Collections;
using GTweensGodot.Extensions;

namespace Cirno.Scripts.Activables._3D;

[Tool]
public partial class Teleporter3D : StaticBody3D, IActivable, ITargetable
{
    [Export] public bool IsEnabled { get; set; }

    [Export] public bool Invisible { get; set; } = false;

    public bool IsPrimed { get; private set; }

    [Export] public Teleporter3D Target { get; set; }
    [Export] public string TargetGroup { get; set; }
    [Export] public string TargetName { get; set; }

    [Export] public float ParticleEmitTime { get; private set; } = 2f;

    [Export] public float TeleportAnimationLength { get; private set; } = 0.5f;
    [Export] public Vector3 TeleportOffset { get; private set; } = new Vector3(0, 4f, 0);

    [ExportCategory("Animations")]
    [Export]
    public StringName ActiveAnimationName { get; private set; } = "Active";

    [Export] public StringName DefaultAnimationName { get; private set; } = "Default";

    public virtual void _func_godot_apply_properties(Dictionary<string, Variant> props)
    {
        TargetGroup = props["target"].AsString();

        TargetName = props["targetname"].AsString();
        IsEnabled = props["enabled"].AsBool();
    }

    private void PlayAnimation(StringName name)
    {
    }

    private void StopParticles()
    {
        // _particles.Emitting = false;
        // _particleTimer = 0;
    }

    private void EmitParticles()
    {
    }

    public override void _Ready()
    {
        PlayAnimation(IsEnabled ? ActiveAnimationName : DefaultAnimationName);

        if (Engine.IsEditorHint()) return;

        if (!string.IsNullOrEmpty(TargetName))
        {
            this.AddToGroup(TargetName);
        }

        IsPrimed = true;
        StopParticles();

        this.Visible = !Invisible;

        // _teleportStartSound = GetNodeOrNull<AudioStreamPlayer2D>("TeleportStart");
        // _teleportEndSound = GetNodeOrNull<AudioStreamPlayer2D>("TeleportEnd");
    }

    public override void _Process(double delta)
    {
        if (Engine.IsEditorHint()) return;
        // if (!_particles.Emitting) return;
        //
        // _particleTimer += delta;
        //
        // if (_particleTimer >= ParticleEmitTime)
        // {
        //     _particleTimer = 0;
        //     _particles.Emitting = false;
        // }
    }

    public bool Activate(ActivationType activationType = ActivationType.Toggle)
    {
        switch (activationType)
        {
            case ActivationType.Toggle:
                // Enables/Disables teleporter
                break;
            case ActivationType.Enable:
                // Enables Teleporter
                IsEnabled = true;
                PlayAnimation(ActiveAnimationName);
                break;
            case ActivationType.Disable:
                IsEnabled = false;
                PlayAnimation(DefaultAnimationName);
                // Disables Teleporter
                break;
            case ActivationType.Use:
                // Teleports
                break;
            case ActivationType.Destroy:
                // Destroys
                break;
        }

        return true;
    }

    public void PrepareForReceiving()
    {
        IsPrimed = false;
        EmitParticles();
    }

    public void FireParticles()
    {
        EmitParticles();
    }

    private void _on_body_entered(Node3D body)
    {
        GD.Print("Something entered the teleporter");
        if (!IsEnabled) return;
        if (body is not IsoPlayerFSMProxy player) return;
        GD.Print("Player entered the teleporter");

        if (!IsPrimed)
        {
            IsPrimed = true;
            //_particles.Emitting = false;
            return;
        }

        // Teleport player to target if active
        if (!IsEnabled) return;

        GD.Print("Teleporting...");

        // Call Teleport here
        _ = Teleport(player.PlayerFSM);
    }

    protected virtual async Task Teleport(IsoPlayerStateMachine player)
    {
        if (Target is null)
        {
            if (string.IsNullOrWhiteSpace(TargetGroup))
            {
                return;
            }

            var foundTarget = GetTree().GetNodesInGroup(TargetGroup).FirstOrDefault();
            if (foundTarget is not Teleporter3D teleporterTarget)
            {
                GD.Print($"No target for teleportation found with group {TargetGroup}");
                return;
            }
            Target = teleporterTarget;
            
        };
        //player.RequestMovementDisable(true);
        player.SetState(PlayerState.Cutscene);

        await TweenPlayer(player.MainObject);

        PlayTeleportStartSound();

        //_particles.Emitting = true;
        FireParticles();

        //await player.Teleport();
        player.SetState(PlayerState.Teleporting);
        await Task.Delay((int)(0.6f * 1000));

        await Task.Delay((int)(TeleportAnimationLength * 1000));

        Target.PrepareForReceiving();
        player.MainObject.GlobalPosition = Target.GlobalPosition + TeleportOffset;
        Target.PlayTeleportEndSound();
        //await player.UnTeleport();

        player.SetState(PlayerState.UnTeleporting);
        await Task.Delay((int)(0.6f * 1000));

        //player.RequestMovementDisable(false);
        player.SetState(PlayerState.Active);
    }

    public void PlayTeleportStartSound()
    {
    }

    public void PlayTeleportEndSound()
    {
    }

    protected async Task TweenPlayer(CharacterBody3D player)
    {
        await player.TweenGlobalPosition(GlobalPosition + TeleportOffset, TeleportAnimationLength)
            .PlayAsync(CancellationToken.None);

        // Create a Tween for the teleport animation
        // Tween tween = GetTree().CreateTween();
        // tween.SetEase(Tween.EaseType.InOut);
        // tween.SetTrans(Tween.TransitionType.Sine);
        // tween.TweenProperty(player, "global_position", GlobalPosition + new Vector2(0,-4f), TeleportAnimationLength);
        //
        // // Wait for the tween to finish
        // await ToSignal(tween, "finished");
    }

    public void Toggle()
    {
    }
}