feat(core): add internal crypto isin resolution and subtitle mapping

2026-08-15 19:29:32 +02:00
parent 5a6a50a609
commit 067f1bfdd5
9 changed files with 258 additions and 11 deletions
@@ -40,16 +40,21 @@ public interface IYahooMarketDataScraper
 public class YahooMarketDataScraper : IYahooMarketDataScraper
 {
    private readonly YahooFinanceClient _yahooClient;
+    private readonly Microsoft.Extensions.Configuration.IConfiguration _configuration;
    private readonly ILogger<YahooMarketDataScraper> _logger;

-    public YahooMarketDataScraper(YahooFinanceClient yahooClient, ILogger<YahooMarketDataScraper> logger)
+    public YahooMarketDataScraper(
+        YahooFinanceClient yahooClient,
+        Microsoft.Extensions.Configuration.IConfiguration configuration,
+        ILogger<YahooMarketDataScraper> logger)
    {
        _yahooClient = yahooClient;
+        _configuration = configuration;
        _logger = logger;
    }

    /// <summary>
-    /// Resolves ticker from ISIN using Yahoo Search API.
+    /// Resolves ticker from ISIN using Yahoo Search API or Crypto Subtitle resolution for internal ISINs.
    /// </summary>
    public async Task<string?> ResolveTickerFromIsinAsync(string isin, CancellationToken cancellationToken = default)
    {
@@ -61,6 +66,34 @@ public class YahooMarketDataScraper : IYahooMarketDataScraper
            return cleanIsin;
        }

+        // Crypto / Trade Republic interne ISINs (beginnend mit 'X', z. B. XF000BTC0017)
+        if (cleanIsin.StartsWith("X", StringComparison.OrdinalIgnoreCase))
+        {
+            var (cryptoSubtitle, cryptoName) = await FinlyticCore.Utils.CryptoSubtitleResolver.ResolveCryptoInfoAsync(
+                cleanIsin, _configuration.GetConnectionString("DefaultConnection"), cancellationToken);
+
+            if (!string.IsNullOrWhiteSpace(cryptoSubtitle))
+            {
+                var candidates = new[] { $"{cryptoSubtitle}-EUR", $"{cryptoSubtitle}-USD", cryptoSubtitle };
+                foreach (var candidate in candidates)
+                {
+                    try
+                    {
+                        var res = await FetchHistoricalCandlesWithCurrencyAsync(candidate, "5d", "1d", cancellationToken);
+                        if (res.Candles.Count > 0)
+                        {
+                            _logger.LogInformation("[{Channel}] Resolved Crypto ISIN {Isin} to {Symbol} using Subtitle {Sub}",
+                                "TechnicalAnalysisChannel", cleanIsin, candidate, cryptoSubtitle);
+                            return candidate;
+                        }
+                    }
+                    catch { }
+                }
+
+                return $"{cryptoSubtitle}-EUR";
+            }
+        }
+
        try
        {
            var searchResult = await _yahooClient.SearchAsync(cleanIsin, quotesCount: 10, newsCount: 0, cancellationToken);