using VNBase.UI;

namespace VNBase;

public sealed partial class ScriptPlayer
{
	public void Skip()
	{
		if ( ActiveScript is null || ActiveLabel is null )
		{
			return;
		}
		
		if ( !CanSkip() )
		{
			return;
		}
		
		var currentLabel = ActiveLabel;
		
		while ( currentLabel?.AfterLabel is not null )
		{
			ExecuteAfterLabel();
			SkipDialogueEffect();
			currentLabel = ActiveLabel;
			
			// Check if we hit input.
			if ( currentLabel.ActiveInput is not null )
			{
				return;
			}
			
			// Check if we hit a choice.
			if ( currentLabel.Choices.Count > 0 )
			{
				return;
			}
			
			if ( currentLabel.AfterLabel is null || !currentLabel.AfterLabel.IsLastLabel )
			{
				continue;
			}
			
			UnloadScript();
			
			return;
		}
	}
	
	/// <summary>
	/// Checks if the current dialogue section can be skipped.
	/// </summary>
	public bool CanSkip()
	{
		if ( ActiveScript is null || ActiveLabel is null )
		{
			return false;
		}
		
		// TODO: Automatic mode skipping is broken. Investigate.
		// For now we just don't allow skipping if we are in automatic mode.
		if ( IsAutomaticMode )
		{
			return false;
		}
		
		var hasTextInput = Hud?.GetSubPanel<TextInput>() is not null;
		
		if ( hasTextInput )
		{
			return false;
		}
		
		var hasChoices = ActiveLabel.Choices.Count > 0;
		
		return !hasChoices;
	}
}