ANTOOZA-BACKEND/Application/Features/Admin/Payment/Danal/Confirm/Get/Handler.cs

using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using Microsoft.EntityFrameworkCore;

namespace Application.Features.Admin.Payment.Danal.Confirm.Get;

public sealed class Handler(IAppDbContext db) : IQueryHandler<Query, Response>
{
    public async Task<Response> Handle(Query request, CancellationToken ct)
    {
        var confirm = await db.DanalConfirm.AsNoTracking()
            .Include(x => x.Member)
            .Include(x => x.PaymentOrder)
            .FirstOrDefaultAsync(x => x.ID == request.ID, ct)
            ?? throw new InvalidOperationException("다날 결제 내역을 찾을 수 없습니다.");

        var cancel = await db.DanalCancel.AsNoTracking()
            .Where(c => c.PaymentOrderID == confirm.PaymentOrderID && c.ResponseCode == "0000")
            .OrderByDescending(c => c.ID)
            .Select(c => new Response.CancelData
            {
                ID = c.ID,
                CancelType = c.CancelType,
                Amount = c.Amount,
                ResponseCode = c.ResponseCode,
                ResponseMessage = c.ResponseMessage,
                CancelledAmount = c.CancelledAmount,
                CreatedAt = c.CreatedAt
            })
            .FirstOrDefaultAsync(ct);

        return new Response
        {
            Confirm = new Response.ConfirmData
            {
                ID = confirm.ID,
                MemberID = confirm.MemberID,
                MemberEmail = confirm.Member?.Email ?? string.Empty,
                MemberName = confirm.Member?.Name,
                Method = confirm.Method,
                TransactionID = confirm.TransactionID,
                OrderID = confirm.OrderID,
                Amount = confirm.Amount,
                MerchantID = confirm.MerchantID,
                OrderStatus = confirm.PaymentOrder != null ? confirm.PaymentOrder.Status : default,
                OrderPaidAt = confirm.PaymentOrder?.PaidAt,
                OrderCancelledAt = confirm.PaymentOrder?.CancelledAt,
                OrderName = confirm.OrderName,
                ResponseCode = confirm.ResponseCode,
                ResponseMessage = confirm.ResponseMessage,
                TotalAmount = confirm.TotalAmount,
                DiscountAmount = confirm.DiscountAmount,
                UserName = confirm.UserName,
                TransDate = confirm.TransDate,
                TransTime = confirm.TransTime,
                CardCode = confirm.CardCode,
                CardName = confirm.CardName,
                CardNo = confirm.CardNo,
                InstallmentMonths = confirm.InstallmentMonths,
                ApproveNo = confirm.ApproveNo,
                ApprovalDateTime = confirm.ApprovalDateTime,
                AuthKey = confirm.AuthKey,
                AccountNumber = confirm.AccountNumber,
                BankCode = confirm.BankCode,
                UserId = confirm.UserId,
                UserEmail = confirm.UserEmail,
                BankName = confirm.BankName,
                ExpireDate = confirm.ExpireDate,
                ExpireTime = confirm.ExpireTime,
                VirtualAccountNumber = confirm.VirtualAccountNumber,
                UseCashReceipt = confirm.UseCashReceipt,
                CreatedAt = confirm.CreatedAt,
                UpdatedAt = confirm.UpdatedAt
            },
            Cancel = cancel
        };
    }
}