using Cirno.Scripts.Misc;
using Godot;

namespace Cirno.Scripts.Utils;

public partial class DialogueTools : RefCounted
{
    private Node _dialogic;
    private bool _isComplete = false;
    public bool IsComplete => _isComplete;
    private DialogueSkipListener _listener;

    private StringName TimelineName;
    
    public void Init(Node parent, StringName timelineName)
    {
        _dialogic = parent.GetNode("/root/Dialogic");
        _dialogic.ProcessMode = Node.ProcessModeEnum.Always;
        TimelineName = timelineName;
    }

    public void Start(Node parent)
    {
        if (GlobalState.Instance.SessionSettings.SkipDialogues)
        {
            DialogueEndAction();
            return;
        }
        
        CreateSkipListener(parent);
        
        Hud.Instance?.HideHud();
        
        _dialogic.Connect("timeline_ended", Callable.From(OnTimelineEnded));

        var dialogicNode =_dialogic.Call("start", TimelineName.ToString());
        ((Node)dialogicNode).ProcessMode = Node.ProcessModeEnum.Always;
        ChangeState(GameState.Dialogue);
    }
    
    private void ChangeState(GameState state)
    {
        GameStateManager.Instance.ChangeState(state);
    }

    private void CreateSkipListener(Node parent)
    {
        _listener = new DialogueSkipListener();
        parent.AddChild(_listener);
        _listener.ProcessMode = Node.ProcessModeEnum.Always;
        _listener.Skipped += ListenerOnSkipped;
    }

    private void ListenerOnSkipped()
    {
        _listener.Skipped -= ListenerOnSkipped;
        _listener.QueueFree();
        _dialogic.Call("end_timeline");
    }

    private void OnTimelineEnded()
    {
        Hud.Instance?.ShowHud();
        ChangeState(GameState.Playing);
        if (_dialogic.IsConnected("timeline_ended", Callable.From(OnTimelineEnded)))
        {
            _dialogic.Disconnect("timeline_ended", Callable.From(OnTimelineEnded));
        }

        DialogueEndAction();
    }

    private void DialogueEndAction()
    {
        _isComplete = true;
    }
    
}