ANTOOZA-BACKEND/Infrastructure/StockData/SeibroSecnFrsecSetlParser.cs

namespace Infrastructure.StockData;

/// <summary>
/// SEIBro getSecnFrsecSetlInfo(종목별 외화증권 결제현황) 응답 파서 — 순수 C#. 공용 SeibroXml envelope 입력 (외화증권.md §4).
/// 실샘플 래퍼 = &lt;result&gt; 소문자. 응답 필드는 NATION_CD·SECN_TPCD·INTL_BIZ_CACD·SETL_ASK_QTY·SETL_AMT 5종 —
/// PROC_DT·ISIN 은 요청 파라미터라 배치가 스탬핑한다. INTL_BIZ_CACD 없는 행은 스킵(자연키 (ProcDt,Isin,IntlBizCacd) 일부).
/// </summary>
public static class SeibroSecnFrsecSetlParser
{
    public sealed record Row(
        string IntlBizCacd,
        string? NationCd,
        string? SecnTpcd,
        decimal? SetlAskQty,
        decimal? SetlAmt
    );

    public static IReadOnlyList<Row> Parse(SeibroXml.Envelope envelope)
    {
        var rows = new List<Row>();

        foreach (var fields in envelope.Rows)
        {
            var intlBizCacd = SeibroXml.GetOrNull(fields, "INTL_BIZ_CACD")?.Trim();

            if (string.IsNullOrEmpty(intlBizCacd))
            {
                continue;
            }

            rows.Add(new Row(
                intlBizCacd,
                SeibroXml.GetOrNull(fields, "NATION_CD")?.Trim(),
                SeibroXml.GetOrNull(fields, "SECN_TPCD")?.Trim(),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "SETL_ASK_QTY")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "SETL_AMT"))
            ));
        }

        return rows;
    }
}