ANTOOZA-BACKEND/Infrastructure/StockData/SeibroAssetXrcParser.cs

namespace Infrastructure.StockData;

/// <summary>
/// SEIBro getAssetXrcInfo(파생결합증권 기초자산 행사정보) 응답 파서 — 순수 C#. 공용 SeibroXml envelope 입력.
/// 실샘플 래퍼 = &lt;RESULT&gt; **대문자** (readme §1 확정 — 파생결합 5종 중 하나).
/// ⚠️ 응답에 ISIN 이 없어(요청 파라미터로만 받음) 배치가 요청 ISIN 을 스탬핑 — 여기선 (AssetSeq, XrcStdSeq, 값) 반환.
/// 자연키 ASSET_SEQ·XRC_STD_SEQ 없으면 스킵.
/// </summary>
public static class SeibroAssetXrcParser
{
    public sealed record Row(
        int AssetSeq,
        int XrcStdSeq,
        decimal? XrcStdRatio,
        decimal? XrcPrice
    );

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

        foreach (var fields in envelope.Rows)
        {
            var assetSeq = SeibroFieldParse.Int(SeibroXml.GetOrNull(fields, "ASSET_SEQ"));
            var xrcStdSeq = SeibroFieldParse.Int(SeibroXml.GetOrNull(fields, "XRC_STD_SEQ"));

            if (assetSeq is null || xrcStdSeq is null)
            {
                continue;
            }

            rows.Add(new Row(
                assetSeq.Value,
                xrcStdSeq.Value,
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "XRC_STD_RATIO")),
                SeibroFieldParse.Decimal(SeibroXml.GetOrNull(fields, "XRC_PRICE"))
            ));
        }

        return rows;
    }
}