Add project files.

GoogleApi/Program.cs

@@ -0,0 +1,101 @@
+using GoogleApi.Configuration;
+using GoogleApi.Security;
+using GoogleApi.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// ============================================================
+// CRITICAL: Explicit port binding for Azure Container Apps
+// ============================================================
+var port = Environment.GetEnvironmentVariable("PORT") ?? "8080";
+builder.WebHost.UseUrls($"http://0.0.0.0:{port}");
+
+// ============================================================
+// Configuration
+// ============================================================
+
+// Bind GoogleAds configuration section
+// Values can be overridden by environment variables:
+//   GoogleAds__EnableRealApi=true
+//   GoogleAds__DeveloperToken=xxx
+//   GoogleAds__OAuth__ClientId=xxx
+//   etc.
+builder.Services.Configure<GoogleAdsConfig>(
+    builder.Configuration.GetSection(GoogleAdsConfig.SectionName));
+
+// Log startup info
+var googleConfig = builder.Configuration.GetSection(GoogleAdsConfig.SectionName).Get<GoogleAdsConfig>();
+Console.WriteLine("===========================================");
+Console.WriteLine($"[GoogleApi] Starting...");
+Console.WriteLine($"[GoogleApi] Port: {port}");
+Console.WriteLine($"[GoogleApi] Environment: {builder.Environment.EnvironmentName}");
+Console.WriteLine($"[GoogleApi] GOOGLE_INTERNAL_KEY set: {!string.IsNullOrEmpty(builder.Configuration["InternalKey"] ?? Environment.GetEnvironmentVariable("GOOGLE_INTERNAL_KEY"))}");
+Console.WriteLine($"[GoogleApi] Real API Enabled: {googleConfig?.EnableRealApi ?? false}");
+Console.WriteLine($"[GoogleApi] API Version: {googleConfig?.ApiVersion ?? "not configured"}");
+Console.WriteLine($"[GoogleApi] Developer Token Set: {!string.IsNullOrEmpty(googleConfig?.DeveloperToken)}");
+Console.WriteLine("===========================================");
+
+// ============================================================
+// Services
+// ============================================================
+builder.Services.AddControllers();
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen(c =>
+{
+    c.SwaggerDoc("v1", new() { Title = "GoogleApi Provider", Version = "v1" });
+});
+
+// Core services
+builder.Services.AddSingleton<GoogleAdsClientFactory>();
+builder.Services.AddSingleton<GoogleAdsService>();
+
+// Auth filter for internal calls from Gateway
+builder.Services.AddScoped<InternalAuthFilter>();
+
+// ============================================================
+// Build & Configure
+// ============================================================
+var app = builder.Build();
+
+Console.WriteLine("[GoogleApi] App built, configuring pipeline...");
+
+// Always enable Swagger (helpful for debugging)
+app.UseSwagger();
+app.UseSwaggerUI();
+
+app.UseRouting();
+app.MapControllers();
+
+// Root health check
+app.MapGet("/", () => Results.Ok(new
+{
+    service = "GoogleApi",
+    status = "healthy",
+    timestamp = DateTimeOffset.UtcNow
+}));
+
+// Detailed health check with config status
+app.MapGet("/health", (IConfiguration config) =>
+{
+    var googleConfig = config.GetSection(GoogleAdsConfig.SectionName).Get<GoogleAdsConfig>();
+    
+    return Results.Ok(new
+    {
+        service = "GoogleApi",
+        status = "healthy",
+        timestamp = DateTimeOffset.UtcNow,
+        config = new
+        {
+            realApiEnabled = googleConfig?.EnableRealApi ?? false,
+            apiVersion = googleConfig?.ApiVersion ?? "not configured",
+            developerTokenSet = !string.IsNullOrEmpty(googleConfig?.DeveloperToken),
+            oauthConfigured = !string.IsNullOrEmpty(googleConfig?.OAuth?.ClientId),
+            defaultLoginCustomerId = googleConfig?.DefaultLoginCustomerId ?? "(not set)"
+        }
+    });
+});
+
+Console.WriteLine("[GoogleApi] Pipeline configured, starting listener...");
+Console.WriteLine($"[GoogleApi] Listening on http://0.0.0.0:{port}");
+
+app.Run();