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Filters: Extended Release Month filter to replace former release date…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,43 +1,86 @@ | ||
| using System; | ||
| using System.Text.RegularExpressions; | ||
|
|
||
| namespace Happy_Reader.Model.VnFilters; | ||
| namespace Happy_Reader; | ||
|
|
||
| public class ReleaseMonthFilter | ||
| { | ||
| private static readonly Regex ParseRegex = new(@"(?<relative>(|Relative:))(?<year>-?\d{1,4}):(?<month>-?\d{1,2})"); | ||
| private static readonly Regex ParseRegex = new(@"(?<relative>(|Relative:))(?<year>Y-?\d{1,4})(?<month>M-?\d{1,2})?(?<day>D-?\d{1,2})?(?<between>;(?<torelative>(|Relative:))(?<toyear>Y-?\d{1,4})(?<tomonth>M-?\d{1,2})?(?<today>D-?\d{1,2})?)?"); | ||
|
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| public bool Relative { get; set; } | ||
| public int Year { get; set; } | ||
| public int Month { get; set; } | ||
| public int? Month { get; set; } | ||
| public int? Day { get; set; } | ||
| public bool Between { get; set; } | ||
| public bool ToRelative { get; set; } | ||
| public int ToYear { get; set; } | ||
| public int? ToMonth { get; set; } | ||
| public int? ToDay { get; set; } | ||
|
|
||
| public bool IsInReleaseMonth(DateTime dateTime) | ||
| { | ||
| var now = DateTime.UtcNow; | ||
| if (Relative) | ||
| var fromOrOn = GetDateTime(true, Relative, Year, Month, Day); | ||
| if (!Between) | ||
| { | ||
| var yearDiff = dateTime.Year - now.Year; | ||
| if (yearDiff != Year) return false; | ||
| var monthDiff = dateTime.Month - now.Month; | ||
| return monthDiff == Month; | ||
| if (dateTime.Year != fromOrOn.Year) return false; | ||
| return (!Month.HasValue || dateTime.Month == fromOrOn.Month) && (!Day.HasValue || dateTime.Day == fromOrOn.Day); | ||
| } | ||
| if (dateTime.Year != Year) return false; | ||
| return dateTime.Month == Month; | ||
| var to = GetDateTime(false, ToRelative, ToYear, ToMonth, ToDay); | ||
| return dateTime >= fromOrOn && dateTime <= to; | ||
| } | ||
|
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||
| public override string ToString() => $"{(Relative ? "Relative:" : string.Empty)}{Year:0000}:{Month:00}"; | ||
| private static DateTime GetDateTime(bool from, bool relative, int year, int? month, int? day) | ||
| { | ||
| DateTime dateTime; | ||
| if (!relative) | ||
| { | ||
| var actualMonth = month ?? (from ? 1 : 12); | ||
| dateTime = new DateTime(year, actualMonth, day ?? (from ? 1 : DateTime.DaysInMonth(year, actualMonth))); | ||
| } | ||
| else | ||
| { | ||
| dateTime = DateTime.Today; | ||
| dateTime = dateTime.AddYears(year); | ||
| dateTime = month.HasValue ? dateTime.AddMonths(month.Value) : new DateTime(dateTime.Year, from ? 1 : 12, 1); | ||
| dateTime = day.HasValue ? dateTime.AddDays(day.Value) : new DateTime(dateTime.Year, dateTime.Month, from ? 1 : DateTime.DaysInMonth(dateTime.Year, dateTime.Month)); | ||
| } | ||
| return dateTime; | ||
|
|
||
| } | ||
|
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||
| public override string ToString() | ||
| { | ||
| var result = $"{(Relative ? "Relative:" : string.Empty)}Y{Year:0000}"; | ||
| if (Month.HasValue) result += $"M{Month:00}"; | ||
| if (Day.HasValue) result += $"D{Day:00}"; | ||
| if (Between) | ||
| { | ||
| result += $";{(ToRelative ? "Relative:" : string.Empty)}Y{ToYear:0000}"; | ||
| if (ToMonth.HasValue) result += $"M{ToMonth:00}"; | ||
| if (ToDay.HasValue) result += $"D{ToDay:00}"; | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| public static bool TryParse(string value, out ReleaseMonthFilter releaseMonthFilter) | ||
| { | ||
| releaseMonthFilter = default; | ||
| if (string.IsNullOrEmpty(value)) return false; | ||
| var match = ParseRegex.Match(value); | ||
| if (!match.Success) return false; | ||
| releaseMonthFilter = new ReleaseMonthFilter | ||
| { | ||
| Relative = match.Groups["relative"].Value != string.Empty, | ||
| Year = int.Parse(match.Groups["year"].Value), | ||
| Month = int.Parse(match.Groups["month"].Value) | ||
| Year = int.Parse(match.Groups["year"].Value.Substring(1)), | ||
| Month = match.Groups["month"].Success ? int.Parse(match.Groups["month"].Value.Substring(1)) : null, | ||
| Day = match.Groups["day"].Success ? int.Parse(match.Groups["day"].Value.Substring(1)) : null | ||
| }; | ||
| if (!match.Groups["between"].Success) return true; | ||
| releaseMonthFilter.Between = true; | ||
| releaseMonthFilter.ToRelative = match.Groups["torelative"].Value != string.Empty; | ||
| releaseMonthFilter.ToYear = int.Parse(match.Groups["toyear"].Value.Substring(1)); | ||
| releaseMonthFilter.ToMonth = match.Groups["tomonth"].Success ? int.Parse(match.Groups["tomonth"].Value.Substring(1)) : null; | ||
| releaseMonthFilter.ToDay = match.Groups["today"].Success ? int.Parse(match.Groups["today"].Value.Substring(1)) : null; | ||
| return true; | ||
| } | ||
| } |
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