ANTOOZA-BACKEND/Infrastructure/StockData/SeibroBondOptionXrcParser.cs

namespace Infrastructure.StockData;

/// <summary>
/// SEIBro getBondOptionXrcInfo(채권 조기상환 정보) 응답 파서 — 순수 C#. 공용 SeibroXml envelope 입력.
/// 자연키 (ISIN, ERLY_RED_DT) 중 하나라도 없으면 건너뛴다. 날짜(YYYYMMDD)→DateOnly, 콤마 포함 숫자→decimal.
/// </summary>
public static class SeibroBondOptionXrcParser
{
    public sealed record Row(
        string Isin,
        string? KorSecnNm,
        DateOnly? XrcBeginDt,
        DateOnly? XrcExpryDt,
        DateOnly ErlyRedDt,
        string? OptionTpcd,
        decimal? ApliIrate,
        decimal? ErlyRedamtVal,
        decimal? IntPayAmt,
        decimal? IssuRema,
        decimal? XrcRatio
    );

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

        foreach (var fields in envelope.Rows)
        {
            var isin = SeibroXml.GetOrNull(fields, "ISIN")?.Trim();
            var erlyRedDt = SeibroFieldParse.Date(SeibroXml.GetOrNull(fields, "ERLY_RED_DT"));

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

            rows.Add(new Row(
                isin,
                SeibroXml.GetOrNull(fields, "KOR_SECN_NM")?.Trim(),
                SeibroFieldParse.Date(SeibroXml.GetOrNull(fields, "XRC_BEGIN_DT")),
                SeibroFieldParse.Date(SeibroXml.GetOrNull(fields, "XRC_EXPRY_DT")),
                erlyRedDt.Value,
                SeibroXml.GetOrNull(fields, "OPTION_TPCD")?.Trim(),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "APLI_IRATE")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "ERLY_REDAMT_VAL")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "INT_PAY_AMT")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "ISSU_REMA")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "XRC_RATIO"))
            ));
        }

        return rows;
    }
}