More project structure changes.

MangaReader.Core/Sources/NatoManga/Api/INatoMangaClient.cs

@@ -0,0 +1,73 @@
+using MangaReader.Core.HttpService;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Text.Json;
+using System.Text.RegularExpressions;
+
+namespace MangaReader.Core.Sources.NatoManga.Api;
+
+public interface INatoMangaClient
+{
+    Task<NatoMangaSearchResult[]> SearchAsync(string searchWord, CancellationToken cancellationToken);
+}
+
+public partial class NatoMangaClient(IHttpService httpService) : INatoMangaClient
+{
+    [GeneratedRegex(@"[^a-z0-9]+")]
+    private static partial Regex NonAlphaNumericCharactersRegex();
+
+    [GeneratedRegex("_{2,}")]
+    private static partial Regex ExtendedUnderscoresRegex();
+
+    private static readonly JsonSerializerOptions _jsonSerializerOptions = new()
+    {
+        PropertyNameCaseInsensitive = true
+    };
+
+    public async Task<NatoMangaSearchResult[]> SearchAsync(string searchWord, CancellationToken cancellationToken)
+    {
+        string formattedSearchWord = GetFormattedSearchWord(searchWord);
+        string url = $"https://www.natomanga.com/home/search/json?searchword={formattedSearchWord}";
+
+        string response = await httpService.GetStringAsync(url, cancellationToken);
+
+        return JsonSerializer.Deserialize<NatoMangaSearchResult[]>(response, _jsonSerializerOptions) ?? [];
+    }
+
+    protected string GetSearchUrl(string keyword)
+    {
+        string formattedSeachWord = GetFormattedSearchWord(keyword);
+
+        return $"https://www.natomanga.com/home/search/json?searchword={formattedSeachWord}";
+    }
+
+    private static string GetFormattedSearchWord(string input)
+    {
+        if (string.IsNullOrWhiteSpace(input))
+            return string.Empty;
+
+        // Convert to lowercase and normalize to decompose accents
+        string normalized = input.ToLowerInvariant()
+            .Normalize(NormalizationForm.FormD);
+
+        // Remove diacritics
+        var sb = new StringBuilder();
+        foreach (var c in normalized)
+        {
+            var unicodeCategory = CharUnicodeInfo.GetUnicodeCategory(c);
+            if (unicodeCategory != UnicodeCategory.NonSpacingMark)
+                sb.Append(c);
+        }
+
+        // Replace non-alphanumeric characters with underscores
+        string cleaned = NonAlphaNumericCharactersRegex().Replace(sb.ToString(), "_");
+
+        // Trim and collapse underscores
+        cleaned = ExtendedUnderscoresRegex().Replace(cleaned, "_").Trim('_');
+
+        return cleaned;
+    }
+}