mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-18 16:33:24 +00:00
83 lines
3.6 KiB
C#
83 lines
3.6 KiB
C#
using System;
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namespace PKHeX.Core
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{
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public static class DateUtil
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{
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/// <summary>
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/// Determines whether or not the given date components are valid.
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/// </summary>
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/// <param name="year">The year of the date of which to check the validity.</param>
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/// <param name="month">The month of the date of which to check the validity.</param>
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/// <param name="day">The day of the date of which to check the validity.</param>
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/// <returns>A boolean indicating whether or not the date is valid.</returns>
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public static bool IsDateValid(int year, int month, int day)
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{
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if (year is <= 0 or > 9999)
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return false;
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if (month is < 1 or > 12)
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return false;
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if (day < 1 || day > DateTime.DaysInMonth(year, month))
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return false;
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return true;
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}
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/// <summary>
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/// Determines whether or not the given date components are valid.
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/// </summary>
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/// <param name="year">The year of the date of which to check the validity.</param>
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/// <param name="month">The month of the date of which to check the validity.</param>
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/// <param name="day">The day of the date of which to check the validity.</param>
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/// <returns>A boolean indicating whether or not the date is valid.</returns>
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public static bool IsDateValid(uint year, uint month, uint day)
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{
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return year < int.MaxValue && month < int.MaxValue && day < int.MaxValue && IsDateValid((int)year, (int)month, (int)day);
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}
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private static readonly DateTime Epoch2000 = new(2000, 1, 1);
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private const int SecondsPerDay = 60*60*24; // 86400
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public static int GetSecondsFrom2000(DateTime date, DateTime time)
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{
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int seconds = (int)(date - Epoch2000).TotalSeconds;
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seconds -= seconds % SecondsPerDay;
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seconds += (int)(time - Epoch2000).TotalSeconds;
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return seconds;
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}
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public static void GetDateTime2000(uint seconds, out DateTime date, out DateTime time)
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{
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date = Epoch2000.AddSeconds(seconds);
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time = Epoch2000.AddSeconds(seconds % SecondsPerDay);
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}
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public static string ConvertDateValueToString(int value, int secondsBias = -1)
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{
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var sb = new System.Text.StringBuilder();
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if (value >= SecondsPerDay)
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sb.Append(value / SecondsPerDay).Append("d ");
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sb.Append(new DateTime(0).AddSeconds(value).ToString("HH:mm:ss"));
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if (secondsBias >= 0)
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sb.Append(Environment.NewLine).Append("Date: ").Append(Epoch2000.AddSeconds(value + secondsBias));
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return sb.ToString();
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}
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/// <summary>
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/// Gets a random day within the random range of <see cref="start"/> and <see cref="end"/> days, inclusive.
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/// </summary>
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/// <param name="start">First valid date</param>
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/// <param name="end">Last valid date</param>
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/// <param name="r">Random to use</param>
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/// <returns>Date within the specified range, inclusive.</returns>
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public static DateTime GetRandomDateWithin(DateTime start, DateTime end, Random r)
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{
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var delta = end - start;
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var bias = r.Next(delta.Days + 1);
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return start.AddDays(bias);
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}
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/// <inheritdoc cref="GetRandomDateWithin(DateTime,DateTime,Random)"/>
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public static DateTime GetRandomDateWithin(DateTime start, DateTime end) => GetRandomDateWithin(start, end, Util.Rand);
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}
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}
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