using Google.Protobuf.WellKnownTypes;
using Grpc.Core;
using IdentityService.WebApi.Applications.User;
using IM.Protocols.Grpc.User;

namespace IdentityService.WebApi.Services
{
    public class UserService:UserInternal.UserInternalBase
    {
        private readonly Applications.User.UserService service;

        public UserService(Applications.User.UserService service)
        {
            this.service = service;
        }
        public override async Task<UserResponse> GetUserInfoAsync(GetUserInfoRequest request, ServerCallContext context)
        {
            var res = await service.GetUserInfoAsync(Guid.Parse(request.UserId));
            if (!res.Succeeded)
            {
                throw new RpcException(new Status(StatusCode.NotFound, res.Message));
            }

            return new UserResponse()
            {
                Avatar = res.Data.Avatar ?? "",
                CreationTime = res.Data.CreationTime.ToUniversalTime().ToTimestamp(),
                Deletion = res.Data.Deletion is null ? DateTime.MinValue.ToUniversalTime().ToTimestamp() : res.Data.Deletion.Value.ToUniversalTime().ToTimestamp(),
                Description = res.Data.Description,
                Email = res.Data.Email ?? "",
                Id = res.Data.Id.ToString(),
                NickName = res.Data.NickName,
                Phone = res.Data.Phone ?? "",
                Region = res.Data.Region,
                UserName = res.Data.UserName
            };
        }
        public override async Task<GetUserListResponse> GetUserListAsync(
    GetUserListRequest request,
    ServerCallContext context)
        {
            var ids = request.UserIds
                .Select(Guid.Parse)
                .ToList();

            var res = await service.GetUsersByIdsAsync(ids);

            if (!res.Succeeded)
            {
                throw new RpcException(new Status(StatusCode.NotFound, res.Message));
            }

            var response = new GetUserListResponse();

            response.Users.AddRange(res.Data.Select(user =>
            {
                var item = new UserResponse
                {
                    Avatar = user.Avatar ?? "",
                    CreationTime = user.CreationTime.ToUniversalTime().ToTimestamp(),
                    Description = user.Description,
                    Email = user.Email ?? "",
                    Id = user.Id.ToString(),
                    NickName = user.NickName,
                    Phone = user.Phone ?? "",
                    Region = user.Region,
                    UserName = user.UserName
                };

                if (user.Deletion.HasValue)
                {
                    item.Deletion = user.Deletion.Value.ToUniversalTime().ToTimestamp();
                }

                return item;
            }));

            return response;
        }
    }
}