Misc bunch of changes (#2815)

API/Services/StatisticService.cs

@@ -9,6 +9,7 @@ using API.Entities;
 using API.Entities.Enums;
 using API.Extensions;
 using API.Extensions.QueryExtensions;
+using API.Services.Plus;
 using API.Services.Tasks.Scanner.Parser;
 using AutoMapper;
 using AutoMapper.QueryableExtensions;
@@ -33,6 +34,7 @@ public interface IStatisticService
     IEnumerable<StatCount<int>> GetWordsReadCountByYear(int userId = 0);
     Task UpdateServerStatistics();
     Task<long> TimeSpentReadingForUsersAsync(IList<int> userIds, IList<int> libraryIds);
+    Task<KavitaPlusMetadataBreakdownDto> GetKavitaPlusMetadataBreakdown();
 }
 
 /// <summary>
@@ -531,6 +533,29 @@ public class StatisticService : IStatisticService
                 p.chapter.AvgHoursToRead * (p.progress.PagesRead / (1.0f * p.chapter.Pages))));
     }
 
+    public async Task<KavitaPlusMetadataBreakdownDto> GetKavitaPlusMetadataBreakdown()
+    {
+        // We need to count number of Series that have an external series record
+        // Then count how many series are blacklisted
+        // Then get total count of series that are Kavita+ eligible
+        var plusLibraries = await _context.Library
+            .Where(l => !ExternalMetadataService.NonEligibleLibraryTypes.Contains(l.Type))
+            .Select(l => l.Id)
+            .ToListAsync();
+
+        var countOfBlacklisted = await _context.SeriesBlacklist.CountAsync();
+        var totalSeries = await _context.Series.Where(s => plusLibraries.Contains(s.LibraryId)).CountAsync();
+        var seriesWithMetadata = await _context.ExternalSeriesMetadata.CountAsync();
+
+        return new KavitaPlusMetadataBreakdownDto()
+        {
+            TotalSeries = totalSeries,
+            ErroredSeries = countOfBlacklisted,
+            SeriesCompleted = seriesWithMetadata
+        };
+
+    }
+
     public async Task<IEnumerable<TopReadDto>> GetTopUsers(int days)
     {
         var libraries = (await _unitOfWork.LibraryRepository.GetLibrariesAsync()).ToList();