namespace KArtSell.Modules.ModelOperations.ShadowRun.Services;

public interface IKrxDataService
{
    /// <summary>
    /// Fetch daily OHLCV bars for a ticker within date range.
    /// </summary>
    Task<IReadOnlyList<DataBackfiller.OhlcvBar>> GetDailyOhlcvAsync(
        string ticker,
        DateOnly startDate,
        DateOnly endDate,
        CancellationToken cancellationToken);

    /// <summary>
    /// Fetch fee schedule (transaction costs) for date range.
    /// </summary>
    Task<IReadOnlyList<DataBackfiller.FeeScheduleEntry>> GetFeeScheduleAsync(
        DateOnly startDate,
        DateOnly endDate,
        CancellationToken cancellationToken);
}