ANTOOZA-BACKEND/Infrastructure/StockData/SeibroBondIssuParser.cs

namespace Infrastructure.StockData;

/// <summary>
/// SEIBro getBondIssuInfo(채권 발행내역) 응답 파서 — 순수 C#. 공용 SeibroXml envelope 입력.
/// 자연키 ISIN 없으면 건너뛴다. ISSU_DT(YYYYMMDD)→DateOnly (없으면 발행일 스윕값을 배치가 스탬핑 못 하므로 스킵).
/// </summary>
public static class SeibroBondIssuParser
{
    public sealed record Row(
        DateOnly IssuDt,
        int? IssucoCustno,
        string? IssucoCustNm,
        string Isin,
        string? KorSecnNm
    );

    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 issuDt = SeibroFieldParse.Date(SeibroXml.GetOrNull(fields, "ISSU_DT"));

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

            rows.Add(new Row(
                issuDt.Value,
                SeibroFieldParse.Int(SeibroXml.GetOrNull(fields, "ISSUCO_CUSTNO")),
                SeibroXml.GetOrNull(fields, "ISSUCO_CUST_NM")?.Trim(),
                isin,
                SeibroXml.GetOrNull(fields, "KOR_SECN_NM")?.Trim()
            ));
        }

        return rows;
    }
}