66 lines
2.4 KiB
C#
66 lines
2.4 KiB
C#
using ApplicationServices;
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using DataLayer;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace LibationUiBase.GridView
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{
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#nullable enable
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public static class QueryExtensions
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{
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public static IEnumerable<ILibraryBookEntry> BookEntries(this IEnumerable<IGridEntry> gridEntries)
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=> gridEntries.OfType<ILibraryBookEntry>();
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public static IEnumerable<ISeriesEntry> SeriesEntries(this IEnumerable<IGridEntry> gridEntries)
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=> gridEntries.OfType<ISeriesEntry>();
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public static T? FindByAsin<T>(this IEnumerable<T> gridEntries, string audibleProductID) where T : IGridEntry
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=> gridEntries.FirstOrDefault(i => i.AudibleProductId == audibleProductID);
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public static IEnumerable<ISeriesEntry> EmptySeries(this IEnumerable<IGridEntry> gridEntries)
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=> gridEntries.SeriesEntries().Where(i => i.Children.Count == 0);
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public static ISeriesEntry? FindSeriesParent(this IEnumerable<IGridEntry> gridEntries, LibraryBook seriesEpisode)
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{
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if (seriesEpisode.Book.SeriesLink is null) return null;
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try
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{
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//Parent books will always have exactly 1 SeriesBook due to how
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//they are imported in ApiExtended.getChildEpisodesAsync()
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return gridEntries.SeriesEntries().FirstOrDefault(
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lb =>
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seriesEpisode.Book.SeriesLink.Any(
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s => s.Series.AudibleSeriesId == lb.LibraryBook.Book.SeriesLink.Single().Series.AudibleSeriesId));
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}
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catch (Exception ex)
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{
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Serilog.Log.Error(ex, "Query error in {0}", nameof(FindSeriesParent));
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return null;
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}
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}
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public static bool SearchSetsDiffer(this HashSet<IGridEntry>? searchSet, HashSet<IGridEntry>? otherSet)
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=> searchSet is null != otherSet is null ||
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(searchSet is not null &&
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otherSet is not null &&
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searchSet.Intersect(otherSet).Count() != searchSet.Count);
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public static HashSet<IGridEntry>? FilterEntries(this IEnumerable<IGridEntry> entries, string searchString)
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{
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if (string.IsNullOrEmpty(searchString)) return null;
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var searchResultSet = SearchEngineCommands.Search(searchString);
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var booksFilteredIn = entries.IntersectBy(searchResultSet.Docs.Select(d => d.ProductId), l => l.AudibleProductId);
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//Find all series containing children that match the search criteria
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var seriesFilteredIn = booksFilteredIn.OfType<ILibraryBookEntry>().Where(lbe => lbe.Parent is not null).Select(lbe => lbe.Parent).Distinct();
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return booksFilteredIn.Concat(seriesFilteredIn).ToHashSet();
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}
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}
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#nullable disable
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}
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