TourIAm/TIAM.Services.Server/TransferBackendService.cs

using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using TIAM.Core.Enums;
using TIAM.Database.DataLayers.Admins;
using TIAM.Entities.Products;
using TIAM.Entities.Transfers;

namespace TIAM.Services.Server
{
    public class TransferBackendService(IConfiguration configuration, AdminDal adminDal)
    {
        //private readonly IConfiguration _configuration = configuration;

        public double GetTransferPrice(Guid productId, Guid fromTransferDestinationId, Guid toTranferDestinationId, in byte seatNumber)
        {
            throw new NotImplementedException();
        }

        public double GetTransferPrice(Guid productId, TransferDestination fromTransferDestination, TransferDestination toTransferDestination, in byte seatNumber)
        {
            var product = adminDal.GetProductById(productId);

            if (product == null) return -1;

            return GetTransferPrice(product, fromTransferDestination, toTransferDestination, in seatNumber);
        }

        public double GetTransferPrice(Product product, TransferDestination fromTransferDestination, TransferDestination toTransferDestination, in byte seatNumber)
        {
            var baseDestination = product.Profile.AddressId == fromTransferDestination.AddressId ? toTransferDestination : fromTransferDestination;

            var transferDestinationToProduct = adminDal.GetTransferDestinationToProduct(product.Id, baseDestination.Id);

            var tranferDestinationPrice = transferDestinationToProduct ?? baseDestination as ITransfeDestinationPrices;

            var price = GetSeatNumberPrice(in tranferDestinationPrice, seatNumber) + tranferDestinationPrice.ProductCommis + GetExtraPrice(in fromTransferDestination);

            //TODO: ExtraPrice - J. seatnum percent price, FirstName, LastName, CascadeDelete
            return price;
        }

        public double GetExtraPrice(in TransferDestination fromTransferDestination)
        {
            return fromTransferDestination.ExtraPrice > 0 ? fromTransferDestination.ExtraPrice : 0;
        }

        public double GetSeatNumberPrice(in ITransfeDestinationPrices transferDestinationPrices, in byte seatNumber)
            => GetSeatNumberPrice(transferDestinationPrices.Price, transferDestinationPrices.Price2, transferDestinationPrices.Price3, seatNumber);

        public double GetSeatNumberPrice(double price, in double? price2, in double? price3, in byte seatNumber)
        {
            return seatNumber switch
            {
                >= (byte)SeatNumberPriceType.Price3SeatNum => price3 ?? price //TODO: price * seatnum percent - J.
                ,
                >= (byte)SeatNumberPriceType.Price2SeatNum => price2 ?? price //TODO: price * seatnum percent - J.
                ,
                _ => price
            };
        }

        public double GetCommission(Guid productId, double Price, TransferDestination to) 
        {
            //check if Destination has a custom commissionRate by productId
            double commissionRate = 0;
            double commission = 0;
            var transferDestinationToProduct = adminDal.GetTransferDestinationToProduct(productId, to.Id);
            if (transferDestinationToProduct != null) 
            {
                commissionRate = transferDestinationToProduct.ProductCommis;
            }
            else
            {
                if (to.ProductCommis > 0)
                {
                    commissionRate = to.ProductCommis;
                }

                else
                {
                    var product = adminDal.GetProductById(productId);
                    if (product != null)
                    {
                        if(product.ServiceProvider != null)
                        {
                            commissionRate = product.ServiceProvider.CommissionPercent;
                        }
                    } 
                    
                }
            }
            commission = GetCommission(Price, commissionRate);
            return commission;
        }

        public double GetCommission(double price, double commissionrate)
        {
            return price * commissionrate / 100;
        }

    }
}