using System;
using AsbCloudApp.Data.Trajectory;
using ClosedXML.Excel;
using System.IO;
using System.Linq;
using System.Reflection;
using AsbCloudApp.Data;
using AsbCloudApp.Requests.ParserOptions;

namespace AsbCloudInfrastructure.Services.Trajectory.Parser;

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

	protected TrajectoryParserService(IServiceProvider serviceProvider)
		: base(serviceProvider)
	{
	}

	protected abstract string SheetName { get; }

	protected abstract string TemplateFileName { get; }

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

	public override Stream GetTemplateFile() =>
		Assembly.GetExecutingAssembly().GetTemplateCopyStream(TemplateFileName)
		?? throw new ArgumentNullException($"Файл '{TemplateFileName}' не найден");

	public override ParserResultDto<T> Parse(Stream file, IParserOptionsRequest options)
	{
		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 = ParseExcelSheet(sheet, ParseRow, ColumnCount, HeaderRowsCount);
		return trajectoryRows;
	}
}