Improves tvdb filtering

Author: redbaty

Wasari.Tvdb.Api/Extensions/StringExtensions.cs

@@ -0,0 +1,11 @@
+using System.Text.RegularExpressions;
+
+namespace Wasari.Tvdb.Api.Extensions;
+
+internal static partial class StringExtensions
+{
+    [GeneratedRegex("[a-zA-Z0-9 ]+")]
+    private static partial Regex EpisodeTitleNormalizeRegex();
+
+    public static string NormalizeUsingRegex(this string str) => string.Join(string.Empty, EpisodeTitleNormalizeRegex().Matches(str).Select(o => o.Value));
+}

Wasari.Tvdb.Api/Services/Remedy.cs renamed to Wasari.Tvdb.Api/Services/TvdbEpisodesService.cs

@@ -1,4 +1,5 @@
 using Wasari.Tvdb.Abstractions;
+using Wasari.Tvdb.Api.Extensions;
 
 namespace Wasari.Tvdb.Api.Services;
 
@@ -14,21 +15,36 @@ public TvdbEpisodesService(ITvdbApi tvdbApi)
     public async ValueTask<IResult> GetEpisodes(string query)
     {
         var searchResult = await TvdbApi.SearchAsync(query);
-        
-        if(searchResult.Data.Count != 1)
+        var tvdbSearchResponseSeries = searchResult.Data;
+
+        if (tvdbSearchResponseSeries.Count > 1)
+        {
+            var normalizedQuery = query.NormalizeUsingRegex();
+
+            var matchByAlias = tvdbSearchResponseSeries
+                .Where(i => i.Aliases != null && i.Aliases.Any(x => string.Equals(x, normalizedQuery, StringComparison.InvariantCultureIgnoreCase)))
+                .ToArray();
+
+            if (matchByAlias.Length == 1)
+            {
+                tvdbSearchResponseSeries = matchByAlias;
+            }
+        }
+
+        if (tvdbSearchResponseSeries.Count != 1)
             return Results.BadRequest(new
             {
                 Status = StatusCodes.Status400BadRequest,
                 Title = "Invalid query",
                 Detail = "Query must return exactly one result"
             });
-        
-        var series = searchResult.Data.Single();
+
+        var series = tvdbSearchResponseSeries.Single();
         var seriesWithEpisodes = await TvdbApi.GetSeriesAsync(series.TvdbId);
 
         return Results.Ok(seriesWithEpisodes.Data.Episodes
             .Where(i => !string.IsNullOrEmpty(i.Name))
-            .Select(i => new Episode(i.Name, i.SeasonNumber, i.Number, i.IsMovie switch
+            .Select(i => new WasariTvdbEpisode(i.Name, i.SeasonNumber, i.Number, i.IsMovie switch
             {
                 0 => false,
                 1 => true,

Wasari.Tvdb/Models/TvdbSearchResponseSeries.cs

@@ -4,7 +4,7 @@ namespace Wasari.Tvdb.Models;
 
 public record TvdbSearchResponseSeries(
     [property: JsonPropertyName("objectID")] string ObjectId,
-    [property: JsonPropertyName("aliases")] IReadOnlyList<string> Aliases,
+    [property: JsonPropertyName("aliases")] IReadOnlyList<string>? Aliases,
     [property: JsonPropertyName("country")] string Country,
     [property: JsonPropertyName("id")] string Id,
     [property: JsonPropertyName("image_url")] string ImageUrl,