using GameCore.ECS;
using GameCore.Events;

namespace GameCore.State;

public class GameStateService(World world) : IGameStateService
{
    private readonly HashSet<string> _unlockedLevelIds = [];
    private readonly World _world = world;
    public GameStatus CurrentStatus { get; private set; } = GameStatus.InMainMenu;
    public string CurrentLevelId { get; private set; }
    public IReadOnlyCollection<string> UnlockedLevelIds => _unlockedLevelIds;

    public void SetStatus(GameStatus newStatus)
    {
        if (CurrentStatus == newStatus) return;

        CurrentStatus = newStatus;
        _world.PublishEvent(new GameStatusChangedEvent(newStatus));
    }

    public void StartGame(string startingLevelId)
    {
        CurrentLevelId = startingLevelId;
        _unlockedLevelIds.Add(startingLevelId);
        SetStatus(GameStatus.InGame);
    }

    public void UnlockLevel(string levelId)
    {
        _unlockedLevelIds.Add(levelId);
    }

    public void ResetProgress()
    {
        _unlockedLevelIds.Clear();
        CurrentLevelId = null!;
        SetStatus(GameStatus.InMainMenu);
    }
}