jellyfin/Emby.Server.Implementations/Sorting/PremiereDateComparer.cs

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using System;
using Jellyfin.Data.Enums;
using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Sorting;
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using MediaBrowser.Model.Querying;
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namespace Emby.Server.Implementations.Sorting
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{
/// <summary>
/// Class PremiereDateComparer.
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/// </summary>
public class PremiereDateComparer : IBaseItemComparer
{
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/// <summary>
/// Gets the name.
/// </summary>
/// <value>The name.</value>
public ItemSortBy Type => ItemSortBy.PremiereDate;
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/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem? x, BaseItem? y)
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{
return GetDate(x).CompareTo(GetDate(y));
}
/// <summary>
/// Gets the date.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>DateTime.</returns>
private static DateTime GetDate(BaseItem? x)
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{
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if (x is null)
{
return DateTime.MinValue;
}
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if (x.PremiereDate.HasValue)
{
return x.PremiereDate.Value;
}
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if (x.ProductionYear.HasValue)
{
try
{
return new DateTime(x.ProductionYear.Value, 1, 1, 0, 0, 0, DateTimeKind.Utc);
}
catch (ArgumentOutOfRangeException)
{
// Don't blow up if the item has a bad ProductionYear, just return MinValue
}
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}
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return DateTime.MinValue;
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}
}
}