using AsbCloudApp.Data.Trajectory;
using ClosedXML.Excel;
using System.IO;
using System.Linq;
using AsbCloudApp.Data;
using AsbCloudApp.Services.Parser;

namespace AsbCloudInfrastructure.Services.Trajectory.Parser;

public abstract class TrajectoryParserService<T> : IParserService<T>
	where T : TrajectoryGeoDto
{
	private const int HeaderRowsCount = 2;
	private const int ColumnCount = 6;

	protected abstract string SheetName { get; }

	protected abstract ValidationResultDto<T> ParseRow(IXLRow row);

	public ParserResultDto<T> Parse(Stream file)
	{
		using var workbook = new XLWorkbook(file, XLEventTracking.Disabled);

		var sheet = workbook.Worksheets.FirstOrDefault(ws =>
						ws.Name.ToLower().Trim() == SheetName.ToLower().Trim())
					?? throw new FileFormatException($"Книга excel не содержит листа {SheetName}.");

		var trajectoryRows = sheet.Parse(ParseRow, ColumnCount, HeaderRowsCount);
		return trajectoryRows;
	}
}