UnivatePropertiesAPI/UnivateProperties_API/Repository/Financial/ListingRepository.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using UnivateProperties_API.Context;
using UnivateProperties_API.Model.Financial;

namespace UnivateProperties_API.Repository.Financial
{
    public interface IListingRepository
    {
        ListingFee insertListingFee(ListingFee fee);
        ListingFee GetListingFee();
    }

    public class ListingRepository : IListingRepository
    {
        private readonly DataContext _dbContext;

        public ListingRepository(DataContext db)
        {
            _dbContext = db;
        }

        public ListingFee insertListingFee(ListingFee fee)
        {
            var hasFee = _dbContext.ListingFees.FirstOrDefault();
            if (fee != null)
            {
                if (hasFee == null)
                {
                    _dbContext.ListingFees.Add(fee);
                    _dbContext.SaveChanges();
                    return fee;
                }
                else
                {
                    fee.Id = 1;
                    hasFee.Amount = fee.Amount;
                    _dbContext.ListingFees.Update(hasFee);
                    _dbContext.SaveChanges();
                    return fee;
                }
                
            }
            else
            {
                return null;
            }
            
        }

        public ListingFee GetListingFee()
        {
            return _dbContext.ListingFees.FirstOrDefault();
        }
    }
}