ANTOOZA-BACKEND/Infrastructure/StockData/SeibroCostPaySchedulParser.cs

namespace Infrastructure.StockData;

/// <summary>
/// SEIBro getCostPaySchedul(대금지급일정) 응답 파서 — 순수 C#. 공용 SeibroXml envelope 입력.
/// ⚠️ 응답엔 지급구분(PAY_COST_TPCD)·지급일(TH1_PAY_TERM_BEGIN_DT)이 없다 — 요청 파라미터라 수집 배치가 스탬핑한다.
/// 따라서 Row 는 회사/종목/사유 필드만 담는다. ISSUCO_CUSTNO·ISIN 중 하나라도 없으면 건너뛴다.
/// </summary>
public static class SeibroCostPaySchedulParser
{
    public sealed record Row(
        int IssucoCustno,
        string Isin,
        string? KorSecnNm,
        string? SecnKacd,
        DateOnly? RgtStdDt,
        string? RgtRacdNm,
        string? RgtRsnDetailSortCd
    );

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

        foreach (var fields in envelope.Rows)
        {
            var custno = SeibroFieldParse.Int(SeibroXml.GetOrNull(fields, "ISSUCO_CUSTNO"));
            var isin = SeibroXml.GetOrNull(fields, "ISIN")?.Trim();

            if (custno is null || string.IsNullOrEmpty(isin))
            {
                continue;
            }

            rows.Add(new Row(
                custno.Value,
                isin,
                SeibroXml.GetOrNull(fields, "KOR_SECN_NM")?.Trim(),
                SeibroXml.GetOrNull(fields, "SECN_KACD")?.Trim(),
                SeibroFieldParse.Date(SeibroXml.GetOrNull(fields, "RGT_STD_DT")),
                SeibroXml.GetOrNull(fields, "RGT_RACD_NM")?.Trim(),
                SeibroXml.GetOrNull(fields, "RGT_RSN_DTAIL_SORT_CD")?.Trim()
            ));
        }

        return rows;
    }
}