Babushka/scripts/CSharp/Common/Quest/QuestManager.cs

using Godot;
using System;
using System.Collections.Generic;
using System.Linq;

namespace Babushka.scripts.CSharp.Common.Quest;

using QuestPair = KeyValuePair<QuestResource, QuestStatus>;
public partial class QuestManager : Node
{
    public static QuestManager? Instance { get; private set; }

    [Signal]
    public delegate void QuestBecomesActiveEventHandler(QuestResource questResource);

    public override void _EnterTree()
    {
        Instance = this;
    }

    private Godot.Collections.Dictionary<QuestResource, QuestStatus> _questStatus = new();


    public void ChangeQuestStatus(QuestResource questResource, QuestStatus.Status newStatus)
    {
        if (!_questStatus.TryGetValue(questResource, out var value))
        {
            value = new QuestStatus();
            _questStatus.Add(questResource, value);
        }

        value.status = newStatus;

        if (newStatus == QuestStatus.Status.Active)
        {
            EmitSignalQuestBecomesActive(questResource);
        }
    }

    public IEnumerable<QuestPair> GetVisibleQuests()
    {
        return _questStatus.Where(qs => qs.Value.status != QuestStatus.Status.Hidden);
    }

    public IEnumerable<QuestPair> GetActiveQuests()
    {
        return _questStatus.Where(qs => qs.Value.status == QuestStatus.Status.Active);
    }
}