Changes

api/Program.cs

@@ -75,11 +75,19 @@ try
     builder.Services.Configure<SmtpSettings>(builder.Configuration.GetSection("Smtp"));
     builder.Services.Configure<CaptchaSettings>(builder.Configuration.GetSection("Captcha"));
     builder.Services.Configure<FileStorageSettings>(builder.Configuration.GetSection("FileStorage"));
+    builder.Services.Configure<RagSettings>(builder.Configuration.GetSection("Rag"));
+    builder.Services.Configure<OpenAiSettings>(builder.Configuration.GetSection("OpenAI"));
 
     // Services
     builder.Services.AddHttpClient<ICaptchaVerifier, RecaptchaVerifier>();
     builder.Services.AddSingleton<IEmailSender, SmtpEmailSender>();
     builder.Services.AddSingleton<Microsoft.AspNetCore.StaticFiles.IContentTypeProvider, Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider>();
+    builder.Services.AddSingleton<Api.Services.Rag.IPdfTextExtractor, Api.Services.Rag.PdfTextExtractor>();
+    builder.Services.AddSingleton<Api.Services.Rag.ITextChunker, Api.Services.Rag.TextChunker>();
+    builder.Services.AddSingleton<Api.Services.Rag.ICvVectorStore, Api.Services.Rag.InMemoryCvVectorStore>();
+    builder.Services.AddScoped<Api.Services.Rag.ICvRagService, Api.Services.Rag.CvRagService>();
+    builder.Services.AddHttpClient<Api.Services.Rag.IOpenAiRagClient, Api.Services.Rag.OpenAiRagClient>();
+    builder.Services.AddHttpClient<Api.Services.Rag.IJobTextExtractor, Api.Services.Rag.JobTextExtractor>();
 
     // Swagger
     builder.Services.AddEndpointsApiExplorer();
@@ -162,6 +170,22 @@ try
             );
         });
 
+        // Policy: CV matcher, expensive because it calls AI APIs.
+        options.AddPolicy("rag", httpContext =>
+        {
+            var ip = httpContext.Connection.RemoteIpAddress?.ToString() ?? "unknown";
+            return RateLimitPartition.GetFixedWindowLimiter(
+                partitionKey: ip,
+                factory: _ => new FixedWindowRateLimiterOptions
+                {
+                    PermitLimit = 10,
+                    Window = TimeSpan.FromMinutes(10),
+                    QueueLimit = 0,
+                    AutoReplenishment = true
+                }
+            );
+        });
+
         options.RejectionStatusCode = StatusCodes.Status429TooManyRequests;
 
         options.OnRejected = async (context, ct) =>