using LibHac.Bcat;
using LibHac.Common;
using Ryujinx.Horizon.Common;
using Ryujinx.Horizon.Sdk.Bcat;
using Ryujinx.Horizon.Sdk.Sf;
using Ryujinx.Horizon.Sdk.Sf.Hipc;
using System;
using System.Threading;

namespace Ryujinx.Horizon.Bcat.Ipc
{
    partial class DeliveryCacheStorageService : IDeliveryCacheStorageService, IDisposable
    {
        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> _libHacService;
        private int _disposalState;

        public DeliveryCacheStorageService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> libHacService)
        {
            _libHacService = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>.CreateMove(ref libHacService);
        }

        [CmifCommand(0)]
        public Result CreateFileService(out IDeliveryCacheFileService service)
        {
            using SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService> libHacService = new();

            LibHac.Result resultCode = _libHacService.Get.CreateFileService(ref libHacService.Ref);

            if (resultCode.IsSuccess())
            {
                service = new DeliveryCacheFileService(ref libHacService.Ref);
            }
            else
            {
                service = null;
            }

            return resultCode.Horizon;
        }

        [CmifCommand(1)]
        public Result CreateDirectoryService(out IDeliveryCacheDirectoryService service)
        {
            using SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService> libHacService = new();

            LibHac.Result resultCode = _libHacService.Get.CreateDirectoryService(ref libHacService.Ref);

            if (resultCode.IsSuccess())
            {
                service = new DeliveryCacheDirectoryService(ref libHacService.Ref);
            }
            else
            {
                service = null;
            }

            return resultCode.Horizon;
        }

        [CmifCommand(10)]
        public Result EnumerateDeliveryCacheDirectory(out int count, [Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DirectoryName> directoryNames)
        {
            return _libHacService.Get.EnumerateDeliveryCacheDirectory(out count, directoryNames).Horizon;
        }

        public void Dispose()
        {
            if (Interlocked.Exchange(ref _disposalState, 1) == 0)
            {
                _libHacService.Destroy();
            }
        }
    }
}
