CMS/src/CMSMicroservice.Application/UserOrderCQ/Commands/SubmitShopBuyOrder/SubmitShopBuyOrderCommandHandler.cs

using CMSMicroservice.Domain.Enums;
using CMSMicroservice.Domain.Events;

namespace CMSMicroservice.Application.UserOrderCQ.Commands.SubmitShopBuyOrder;

public class
    SubmitShopBuyOrderCommandHandler : IRequestHandler<SubmitShopBuyOrderCommand, SubmitShopBuyOrderResponseDto>
{
    private readonly IApplicationDbContext _context;

    public SubmitShopBuyOrderCommandHandler(IApplicationDbContext context)
    {
        _context = context;
    }

    public async Task<SubmitShopBuyOrderResponseDto> Handle(SubmitShopBuyOrderCommand request,
        CancellationToken cancellationToken)
    {
        var user = await _context.Users
            .Include(i => i.UserAddresss)
            .Include(i => i.UserCartss)
            .ThenInclude(i => i.Product)
            .FirstOrDefaultAsync(w => w.Id == request.UserId, cancellationToken: cancellationToken);
        if (user.UserCartss.Count == 0)
            throw new NotFoundException("UserCart", request.UserId);
        if (user.UserCartss.Sum(s => s.Count * s.Product.Price) != request.TotalAmount)
            throw new Exception("مبلغ سفارش با مجموع سبد خرید مطابقت ندارد.");

        await _context.UserOrders.AddAsync(new UserOrder()
        {
            Price = request.TotalAmount,
            PaymentStatus = PaymentStatus.Success,
            PaymentMethod = PaymentMethod.Wallet,
            PaymentDate =DateTime.Now,
            UserId = request.UserId,
            UserAddressId = user.UserAddresss.First(f=>f.IsDefault).Id
        }, cancellationToken);
        await _context.FactorDetailss.AddRangeAsync(user.UserCartss.Select(s => new FactorDetails()
        {
            ProductId = s.ProductId,
            Count = s.Count,
            UnitPrice = s.Product.Price,
            
        }), cancellationToken);
        return new SubmitShopBuyOrderResponseDto();
    }
}