using System;
using System.Collections.Generic;
using System.Linq;
using Code.Infrastructure.Configs;
using Code.Infrastructure.EventBus;
using Cysharp.Threading.Tasks;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.ResourceManagement.AsyncOperations;
using Object = UnityEngine.Object;

namespace Code.Infrastructure.Volume
{
    public interface IVolumeFactory
    {
        UniTaskVoid LoadVolume(VolumeId volumeId, Transform transform = null);
        void ReleaseVolume(UnityEngine.Rendering.Volume volume);
    }

    public class VolumeFactory : IDisposable, IVolumeFactory
    {
        private EventBus.EventBus _eventBus;
        private Dictionary<VolumeId, VolumeSettingsConfig> _configs;

        private AsyncOperationHandle<IList<VolumeSettingsConfig>> _configsHandle;
        private string _configsLabel;

        public VolumeFactory(IConfigLocator configLocator, EventBus.EventBus eventBus)
        {
            _eventBus = eventBus;
            _configsLabel = configLocator.TryGetManyConfigAssetReferences<VolumeSettingsConfig>();

            LoadConfigs().Forget();
        }

        private async UniTaskVoid LoadConfigs()
        {
            _configsHandle = Addressables.LoadAssetsAsync<VolumeSettingsConfig>(_configsLabel);

            await _configsHandle.ToUniTask();

            _configs = _configsHandle.Result.ToDictionary(c => c.id);

            _eventBus.RaiseEvent<IVolumesInitializedHandle>(ui => ui.VolumesInitialized());
        }

        public async UniTaskVoid LoadVolume(VolumeId volumeId, Transform transform = null)
        {
            UnityEngine.Rendering.Volume volume = transform == null
                ? (await Addressables.InstantiateAsync(_configs[volumeId].prefab, transform).ToUniTask())
                .GetComponent<UnityEngine.Rendering.Volume>()
                : (await Addressables.InstantiateAsync(_configs[volumeId].prefab).ToUniTask())
                .GetComponent<UnityEngine.Rendering.Volume>();
            
            if(_configs[volumeId].doNotDestroyOnLoad)
                Object.DontDestroyOnLoad(volume.gameObject);
            
            _eventBus.RaiseEvent<IVolumeLoadedHandle>(ui => ui.VolumeLoaded(volume, volumeId));
        }

        public void ReleaseVolume(UnityEngine.Rendering.Volume volume)
        {
            Addressables.ReleaseInstance(volume.gameObject);
        }

        public void Dispose()
        {
            Addressables.Release(_configsHandle);
        }
    }

    internal interface IVolumesInitializedHandle : IGlobalSubscriber
    {
        void VolumesInitialized();
    }

    internal interface IVolumeLoadedHandle : IGlobalSubscriber
    {
        void VolumeLoaded(UnityEngine.Rendering.Volume volume, VolumeId volumeId);
    }
}