using System.Threading.Tasks;
using FrostFS.SDK.ClientV2.Mappers.GRPC.Netmap;
using FrostFS.Container;

using FrostFS.SDK.ClientV2.Mappers.GRPC;
using FrostFS.SDK.Cryptography;
using System.Collections.Generic;
using FrostFS.SDK.ModelsV2;

namespace FrostFS.SDK.ClientV2;

internal class ContainerServiceProvider : ContextAccessor
{
    private readonly ContainerService.ContainerServiceClient containerServiceClient;
    
    internal ContainerServiceProvider(ContainerService.ContainerServiceClient service, ClientEnvironment context)
        : base(context)
    {
        containerServiceClient = service;
    }

    internal async Task<ModelsV2.Container> GetContainerAsync(ContainerId cid, Context context)
    {
        var request = new GetRequest
        {
            Body = new GetRequest.Types.Body
            {
                ContainerId = cid.ToGrpcMessage()
            },
        };

        request.AddMetaHeader();
        request.Sign(Context.Key);

        var response = await containerServiceClient.GetAsync(request, null, context.Deadline, context.CancellationToken);

        Verifier.CheckResponse(response);

        return response.Body.Container.ToModel();        
    }

    internal async IAsyncEnumerable<ContainerId> ListContainersAsync(Context ctx)
    {
        var request = new ListRequest
        {
            Body = new ListRequest.Types.Body
            {
                OwnerId = Context.Owner.ToGrpcMessage()
            }
        };
        
        request.AddMetaHeader();
        request.Sign(Context.Key);

        var response = await containerServiceClient.ListAsync(request, null, ctx.Deadline, ctx.CancellationToken);
       
        Verifier.CheckResponse(response);
       
        foreach (var cid in response.Body.ContainerIds)
        {
            yield return new ContainerId(Base58.Encode(cid.Value.ToByteArray()));
        }
    }

    internal async Task<ContainerId> CreateContainerAsync(ModelsV2.Container container, Context ctx)
    {
        var grpcContainer = container.ToGrpcMessage(); 
        grpcContainer.OwnerId = Context.Owner.ToGrpcMessage();
        grpcContainer.Version = Context.Version.ToGrpcMessage();
        
        var request = new PutRequest
        {
            Body = new PutRequest.Types.Body
            {
                Container = grpcContainer,
                Signature = Context.Key.SignRFC6979(grpcContainer),
            }
        };
        request.AddMetaHeader();
        request.Sign(Context.Key);

        var response = await containerServiceClient.PutAsync(request, null, ctx.Deadline, ctx.CancellationToken);
      
        Verifier.CheckResponse(response);
      
        return new ContainerId(Base58.Encode(response.Body.ContainerId.Value.ToByteArray()));
    }

    internal async Task DeleteContainerAsync(ContainerId cid, Context ctx)
    {
        var request = new DeleteRequest
        {
            Body = new DeleteRequest.Types.Body
            {
                ContainerId = cid.ToGrpcMessage(),
                Signature = Context.Key.SignRFC6979(cid.ToGrpcMessage().Value)
            }
        };
    
        request.AddMetaHeader();
        request.Sign(Context.Key);

        var response = await containerServiceClient.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
    
        Verifier.CheckResponse(response);
    }
}