using Core.Parsers.EventOccurrence;
using Core.Utility;

namespace GoogleSheetsScheduleImport;

public static class OccurrenceChronologicalSort
{
    public static List<ParsedOccurrenceLine> Sort(IEnumerable<ParsedOccurrenceLine> lines, int year)
    {
        return lines
            .OrderBy(l => Key(l, year))
            .ThenBy(l => l.SourceRowStart)
            .ThenBy(l => l.SourceCol)
            .ToList();
    }

    private static DateTime Key(ParsedOccurrenceLine line, int year)
    {
        try
        {
            var d = TextUtil.ParseDate(line.Month, line.Day.ToString(), year);
            var timePart = TimeParser.ExtractStartTime(line.TimeRange);
            var t = TimeParser.Parse(timePart);
            return new DateTime(d, t);
        }
        catch
        {
            return DateTime.MaxValue;
        }
    }
}