session-companion/SessionCompanion/SessionCompanion.Services/Services/ShopkeeperService.cs

using AutoMapper;
using Microsoft.EntityFrameworkCore;
using SessionCompanion.Database.Repositories.Base;
using SessionCompanion.Database.Tables;
using SessionCompanion.Extensions.EitherType;
using SessionCompanion.Services.Base;
using SessionCompanion.Services.Interfaces;
using SessionCompanion.ViewModels.ApiResponses;
using SessionCompanion.ViewModels.ShopkeeperViewModels;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SessionCompanion.Services.Services
{
    public class ShopkeeperService : ServiceBase<ShopkeeperViewModel, Shopkeeper>, IShopkeeperService
    {
        public ShopkeeperService(IMapper mapper, IRepository<Shopkeeper> repository) : base(mapper, repository)
        { }
        public async Task<Either<SuccessResponse, ErrorResponse>> CreateNewShopKeeper(ShopkeeperWithItemsViewModel shopkeeperWithItemsViewModel)
        {
            try
            {
                var activeShopkeeper = await Repository.Get(c => c.IsAvailable.Equals(true)).SingleAsync();
                if (activeShopkeeper is not null && shopkeeperWithItemsViewModel.IsAvailable)
                {
                    activeShopkeeper.IsAvailable = false;
                    await Repository.Update(activeShopkeeper);
                }
                var result = Mapper.Map<Shopkeeper>(shopkeeperWithItemsViewModel);
                await Repository.Create(result);
                await Repository.Save();
                return new SuccessResponse("New shopkeeper created");
            }
            catch (Exception e)
            {
                return new ErrorResponse() { StatusCode = 500, Message = e.Message };
            }
        }
    }
}