using System;
using Cysharp.Threading.Tasks;

namespace DanieleMarotta.RiversongCodeShowcase
{
    public class TentRemovalSystem : GameSystem, IInitializable, IDisposable
    {
        [InjectService]
        private ISignalBus _signalBus;

        [InjectService]
        private IDeleteBuildingService _deleteBuildingService;

        [InjectService]
        private IEntityCache _entityCache;

        public TentRemovalSystem(IServiceLocator serviceLocator) : base(serviceLocator)
        {
        }

        public UniTask InitializeAsync()
        {
            _signalBus.Subscribe<DayStartedSignal>(OnDayStarted);

            return UniTask.CompletedTask;
        }

        public void Dispose()
        {
            _signalBus.Unsubscribe<DayStartedSignal>(OnDayStarted);
        }

        private void OnDayStarted(DayStartedSignal signal)
        {
            var tents = _entityCache.GetTentBuildings();

            for (var i = tents.Count - 1; i >= 0; i--)
            {
                var tent = tents[i];
                _deleteBuildingService.Delete(tent, DeleteBuildingOptions.Silent);
            }
        }
    }
}