ANTOOZA-BACKEND/Web.Api/Endpoints/Paper/PlaceOrder.cs

using System.Security.Claims;
using System.Text.Json.Serialization;
using Application.Abstractions.Messaging;
using Domain.Entities.Paper.ValueObject;
using SharedKernel.Results;
using Web.Api.Common;
using Web.Api.Extensions;

namespace Web.Api.Endpoints.Paper;

public sealed class PlaceOrderRequest
{
    [JsonPropertyName("stockCode")]
    public string StockCode { get; set; } = "";

    /// <summary>주문 방향 — "Buy" | "Sell" (대소문자 무시).</summary>
    [JsonPropertyName("side")]
    public string Side { get; set; } = "";

    [JsonPropertyName("quantity")]
    public int Quantity { get; set; }
}

/// <summary>모의투자 — 주문 접수.</summary>
internal sealed class PlaceOrder : IEndpoint
{
    public void MapEndpoint(IEndpointRouteBuilder app)
    {
        app.MapPost("api/paper/orders", async (
            PlaceOrderRequest body,
            ClaimsPrincipal user,
            ISender sender,
            CancellationToken ct
        ) => {
            if (!Enum.TryParse<PaperOrderSide>(body.Side, ignoreCase: true, out var side) || !Enum.IsDefined(side))
            {
                return CustomResults.Problem(Result.Failure(Error.Problem("Paper.InvalidSide", "주문 방향(side)이 올바르지 않습니다. (Buy | Sell)")));
            }

            var memberID = user.GetRequiredMemberID();
            var result = await sender.Send(new Application.Features.Api.Paper.PlaceOrder.Command(memberID, body.StockCode, side, body.Quantity), ct);

            if (result.IsFailure)
            {
                return CustomResults.Problem(result);
            }

            return ApiResponse.Ok(result.Value);
        })
        .WithTags("Paper")
        .RequireAuthorization();
    }
}