feat: add pluggable music service architecture with Qobuz support

octo-fiesta/Services/StartupValidationService.cs

@@ -7,21 +7,24 @@ namespace octo_fiesta.Services;
 
 /// <summary>
 /// Hosted service that validates configuration at startup and logs the results.
-/// Checks connectivity to Subsonic server and validates Deezer ARL token.
+/// Checks connectivity to Subsonic server and validates music service credentials (Deezer or Qobuz).
 /// Uses a dedicated HttpClient without logging to keep console output clean.
 /// </summary>
 public class StartupValidationService : IHostedService
 {
     private readonly IConfiguration _configuration;
     private readonly IOptions<SubsonicSettings> _subsonicSettings;
+    private readonly IOptions<QobuzSettings> _qobuzSettings;
     private readonly HttpClient _httpClient;
 
     public StartupValidationService(
         IConfiguration configuration,
-        IOptions<SubsonicSettings> subsonicSettings)
+        IOptions<SubsonicSettings> subsonicSettings,
+        IOptions<QobuzSettings> qobuzSettings)
     {
         _configuration = configuration;
         _subsonicSettings = subsonicSettings;
+        _qobuzSettings = qobuzSettings;
         // Create a dedicated HttpClient without logging to keep startup output clean
         _httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(10) };
     }
@@ -35,7 +38,17 @@ public class StartupValidationService : IHostedService
         Console.WriteLine();
 
         await ValidateSubsonicAsync(cancellationToken);
-        await ValidateDeezerArlAsync(cancellationToken);
+        
+        // Validate music service credentials based on configured service
+        var musicService = _subsonicSettings.Value.MusicService;
+        if (musicService == MusicService.Qobuz)
+        {
+            await ValidateQobuzAsync(cancellationToken);
+        }
+        else
+        {
+            await ValidateDeezerArlAsync(cancellationToken);
+        }
 
         Console.WriteLine();
         Console.WriteLine("========================================");
@@ -141,6 +154,112 @@ public class StartupValidationService : IHostedService
         }
     }
 
+    private async Task ValidateQobuzAsync(CancellationToken cancellationToken)
+    {
+        var userAuthToken = _qobuzSettings.Value.UserAuthToken;
+        var userId = _qobuzSettings.Value.UserId;
+        var quality = _qobuzSettings.Value.Quality;
+
+        Console.WriteLine();
+
+        if (string.IsNullOrWhiteSpace(userAuthToken))
+        {
+            WriteStatus("Qobuz UserAuthToken", "NOT CONFIGURED", ConsoleColor.Red);
+            WriteDetail("Set the Qobuz__UserAuthToken environment variable");
+            return;
+        }
+
+        if (string.IsNullOrWhiteSpace(userId))
+        {
+            WriteStatus("Qobuz UserId", "NOT CONFIGURED", ConsoleColor.Red);
+            WriteDetail("Set the Qobuz__UserId environment variable");
+            return;
+        }
+
+        WriteStatus("Qobuz UserAuthToken", MaskSecret(userAuthToken), ConsoleColor.Cyan);
+        WriteStatus("Qobuz UserId", userId, ConsoleColor.Cyan);
+        WriteStatus("Qobuz Quality", quality ?? "auto (highest available)", ConsoleColor.Cyan);
+
+        // Validate token by calling Qobuz API
+        await ValidateQobuzTokenAsync(userAuthToken, userId, cancellationToken);
+    }
+
+    private async Task ValidateQobuzTokenAsync(string userAuthToken, string userId, CancellationToken cancellationToken)
+    {
+        const string fieldName = "Qobuz credentials";
+        
+        try
+        {
+            // First, get the app ID from bundle service (simple check)
+            var bundleUrl = "https://play.qobuz.com/login";
+            var bundleResponse = await _httpClient.GetAsync(bundleUrl, cancellationToken);
+            
+            if (!bundleResponse.IsSuccessStatusCode)
+            {
+                WriteStatus(fieldName, "UNABLE TO VERIFY", ConsoleColor.Yellow);
+                WriteDetail("Could not fetch Qobuz app configuration");
+                return;
+            }
+
+            // Try to validate with a simple API call
+            // We'll use the user favorites endpoint which requires authentication
+            var appId = "798273057"; // Fallback app ID
+            var apiUrl = $"https://www.qobuz.com/api.json/0.2/favorite/getUserFavorites?user_id={userId}&app_id={appId}";
+            
+            using var request = new HttpRequestMessage(HttpMethod.Get, apiUrl);
+            request.Headers.Add("X-App-Id", appId);
+            request.Headers.Add("X-User-Auth-Token", userAuthToken);
+            request.Headers.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0");
+
+            var response = await _httpClient.SendAsync(request, cancellationToken);
+
+            if (!response.IsSuccessStatusCode)
+            {
+                // 401 means invalid token, other errors might be network issues
+                if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
+                {
+                    WriteStatus(fieldName, "INVALID", ConsoleColor.Red);
+                    WriteDetail("Token is expired or invalid");
+                }
+                else
+                {
+                    WriteStatus(fieldName, $"HTTP {(int)response.StatusCode}", ConsoleColor.Yellow);
+                    WriteDetail("Unable to verify credentials");
+                }
+                return;
+            }
+
+            var json = await response.Content.ReadAsStringAsync(cancellationToken);
+            
+            // If we got a successful response, credentials are valid
+            if (!string.IsNullOrEmpty(json) && !json.Contains("\"error\""))
+            {
+                WriteStatus(fieldName, "VALID", ConsoleColor.Green);
+                WriteDetail($"User ID: {userId}");
+            }
+            else
+            {
+                WriteStatus(fieldName, "INVALID", ConsoleColor.Red);
+                WriteDetail("Unexpected response from Qobuz");
+            }
+        }
+        catch (TaskCanceledException)
+        {
+            WriteStatus(fieldName, "TIMEOUT", ConsoleColor.Yellow);
+            WriteDetail("Could not reach Qobuz within 10 seconds");
+        }
+        catch (HttpRequestException ex)
+        {
+            WriteStatus(fieldName, "UNREACHABLE", ConsoleColor.Yellow);
+            WriteDetail(ex.Message);
+        }
+        catch (Exception ex)
+        {
+            WriteStatus(fieldName, "ERROR", ConsoleColor.Red);
+            WriteDetail(ex.Message);
+        }
+    }
+
     private async Task ValidateArlTokenAsync(string arl, string label, CancellationToken cancellationToken)
     {
         var fieldName = $"Deezer ARL ({label})";