Fixed some crashes in response strings source generator, reorganized more submodules into their folders

src/NadekoBot/Modules/Searches/Crypto/CryptoService.cs

@@ -0,0 +1,96 @@
+#nullable disable
+using NadekoBot.Modules.Searches.Common;
+using Newtonsoft.Json;
+
+namespace NadekoBot.Modules.Searches.Services;
+
+public class CryptoService : INService
+{
+    private readonly IDataCache _cache;
+    private readonly IHttpClientFactory _httpFactory;
+    private readonly IBotCredentials _creds;
+
+    private readonly SemaphoreSlim getCryptoLock = new(1, 1);
+
+    public CryptoService(IDataCache cache, IHttpClientFactory httpFactory, IBotCredentials creds)
+    {
+        _cache = cache;
+        _httpFactory = httpFactory;
+        _creds = creds;
+    }
+
+    public async Task<(CryptoResponseData Data, CryptoResponseData Nearest)> GetCryptoData(string name)
+    {
+        if (string.IsNullOrWhiteSpace(name)) return (null, null);
+
+        name = name.ToUpperInvariant();
+        var cryptos = await CryptoData();
+
+        if (cryptos is null)
+            return (null, null);
+
+        var crypto = cryptos?.FirstOrDefault(x
+            => x.Id.ToUpperInvariant() == name
+               || x.Name.ToUpperInvariant() == name
+               || x.Symbol.ToUpperInvariant() == name);
+
+        (CryptoResponseData Elem, int Distance)? nearest = null;
+        if (crypto is null)
+        {
+            nearest = cryptos.Select(x => (x, Distance: x.Name.ToUpperInvariant().LevenshteinDistance(name)))
+                             .OrderBy(x => x.Distance)
+                             .Where(x => x.Distance <= 2)
+                             .FirstOrDefault();
+
+            crypto = nearest?.Elem;
+        }
+
+        if (nearest is not null) return (null, crypto);
+
+        return (crypto, null);
+    }
+
+    public async Task<List<CryptoResponseData>> CryptoData()
+    {
+        await getCryptoLock.WaitAsync();
+        try
+        {
+            var fullStrData = await _cache.GetOrAddCachedDataAsync("nadeko:crypto_data",
+                async _ =>
+                {
+                    try
+                    {
+                        using var _http = _httpFactory.CreateClient();
+                        var strData = await _http.GetStringAsync(
+                            "https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest?"
+                            + $"CMC_PRO_API_KEY={_creds.CoinmarketcapApiKey}"
+                            + "&start=1"
+                            + "&limit=5000"
+                            + "&convert=USD");
+
+                        JsonConvert.DeserializeObject<CryptoResponse>(strData); // just to see if its' valid
+
+                        return strData;
+                    }
+                    catch (Exception ex)
+                    {
+                        Log.Error(ex, "Error getting crypto data: {Message}", ex.Message);
+                        return default;
+                    }
+                },
+                "",
+                TimeSpan.FromHours(1));
+
+            return JsonConvert.DeserializeObject<CryptoResponse>(fullStrData).Data;
+        }
+        catch (Exception ex)
+        {
+            Log.Error(ex, "Error retreiving crypto data: {Message}", ex.Message);
+            return default;
+        }
+        finally
+        {
+            getCryptoLock.Release();
+        }
+    }
+}