using Budet_cho_bot.Models;
using Newtonsoft.Json.Linq;
using System.Linq;

namespace Budet_cho_bot.Helpers;

public static class Utility
{
    public static DateTime ParseDate(string message)
    {
        if (TimeSpan.TryParse(message, out var parsedTime) == false)
        {
            throw new ArgumentException("Хуйня твоё время");
        }

        var today = DateTime.Today; //returns xx/xx/xxxx 00:00:00, so adding time span would set correct daate
        var date = today + parsedTime;
        return date;
    }

    public static TimeSpan DeserializeTime(string token)
    {
        return Newtonsoft.Json.JsonConvert.DeserializeObject<TimeSpan>(token);
    }

    public static string PackTimetableIntoString(CronRecord[] timetable)
    {
        return string.Join(';', timetable.Select(x =>
        {
            var unixRunTime = x.LastRun.ToUniversalTime().ToUnixTimeSeconds();
            var secondsPeriod = (int)(x.Period.TotalSeconds);
            return $"{unixRunTime}:{secondsPeriod}:{x.IsOneShot}";
        }));
    }

    public static CronRecord[] UnpackTimetableFromString(string timetable)
    {
        if(timetable == null)
        {
            return new CronRecord[0];
        }

        return timetable.Split(';').Select(x =>
        {
            var record = x.Split(':'); //crude but whatever
            var lastRun = DateTimeOffset.FromUnixTimeSeconds(long.Parse(record[0]));
            var period = TimeSpan.FromSeconds(long.Parse(record[1]));
            bool oneShot = bool.Parse(record[2]);

            return new CronRecord()
            {
                LastRun = lastRun,
                Period = period,
                IsOneShot = oneShot
            };
        }).ToArray();
    }
}