using System;
using Code.Infrastructure.Configs;
using Cysharp.Threading.Tasks;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.Rendering.Universal;
using UnityEngine.ResourceManagement.AsyncOperations;
using Object = UnityEngine.Object;

namespace Code.Infrastructure.Camera
{
    public interface ICameraFactory
    {
        UniTask<CameraStateMachineContext.CameraLoadedData> CreateCameraStateMachine();
        void CreateCameraStateMachineRunner(CameraStateMachine cameraStateMachine);
    }

    public class CameraFactory : IDisposable, ICameraFactory
    {
        private AsyncOperationHandle<GameCamera> _configHandle;
        private GameCamera _config;
        private AssetReference _gameCameraConfigReference;

        private UnityEngine.Camera _camera;

        public CameraFactory(IConfigLocator configLocator)
        {
            _gameCameraConfigReference = configLocator.TryGetConfigAssetReference<GameCamera>();
        }

        public async UniTask<CameraStateMachineContext.CameraLoadedData> CreateCameraStateMachine()
        {
            _configHandle = Addressables.LoadAssetAsync<GameCamera>(_gameCameraConfigReference);
            await _configHandle.ToUniTask();
            _config = _configHandle.Result;

            var cameraObject = new GameObject { name = "Camera" };

            cameraObject.AddComponent<AudioListener>();
            _camera = cameraObject.AddComponent<UnityEngine.Camera>();

            var universalCameraData = _camera.GetUniversalAdditionalCameraData();
            universalCameraData.renderPostProcessing = _config.PostProcessing;

            _camera.fieldOfView = _config.FieldOfView;
            _camera.nearClipPlane = _config.NearClip;
            _camera.farClipPlane = _config.FarClip;
            _camera.clearFlags = _config.ClearFlags;

            Object.DontDestroyOnLoad(cameraObject);

            return new CameraStateMachineContext.CameraLoadedData(_camera);
        }

        public void CreateCameraStateMachineRunner(CameraStateMachine cameraStateMachine)
        {
            var runner = _camera.AddComponent<CameraStateMachineRunner>();
            runner.SetStateMachine(cameraStateMachine);
        }

        public void Dispose()
        {
            Addressables.Release(_configHandle);
            Addressables.ReleaseInstance(_camera.gameObject);
        }
    }
}