using System.Collections.Generic;
using System.Linq;
using Questionable.Model.Questing;

namespace Questionable.Model;

internal sealed class Quest
{
	public enum ESource
	{
		Assembly,
		ProjectDirectory,
		UserDirectory
	}

	public required ElementId Id { get; init; }

	public required QuestRoot Root { get; init; }

	public required IQuestInfo Info { get; init; }

	public required ESource Source { get; init; }

	public QuestSequence? FindSequence(byte currentSequence)
	{
		return Root.QuestSequence.SingleOrDefault((QuestSequence seq) => seq.Sequence == currentSequence);
	}

	public IEnumerable<QuestSequence> AllSequences()
	{
		return Root.QuestSequence;
	}

	public IEnumerable<(QuestSequence Sequence, int StepId, QuestStep Step)> AllSteps()
	{
		foreach (QuestSequence sequence in Root.QuestSequence)
		{
			int i = 0;
			while (i < sequence.Steps.Count)
			{
				QuestStep item = sequence.Steps[i];
				yield return (Sequence: sequence, StepId: i, Step: item);
				int num = i + 1;
				i = num;
			}
		}
	}
}