backend-infra-engineer: Release v0.3.3 snapshot

src/cli/service/api/http_server.cc

@@ -0,0 +1,78 @@
+#include "cli/service/api/http_server.h"
+
+#include "cli/service/api/api_handlers.h"
+#include "util/log.h"
+
+// Include httplib implementation in one file or just use the header if
+// header-only usually cpp-httplib is header only, so just including is enough.
+// However, we need to be careful about multiple definitions if we include it in
+// multiple .cc files without precautions? cpp-httplib is header only.
+#include "httplib.h"
+
+namespace yaze {
+namespace cli {
+namespace api {
+
+HttpServer::HttpServer() : server_(std::make_unique<httplib::Server>()) {}
+
+HttpServer::~HttpServer() {
+  Stop();
+}
+
+absl::Status HttpServer::Start(int port) {
+  if (is_running_) {
+    return absl::AlreadyExistsError("Server is already running");
+  }
+
+  if (!server_->is_valid()) {
+    return absl::InternalError("HttpServer is not valid");
+  }
+
+  RegisterRoutes();
+
+  // Start server in a separate thread
+  is_running_ = true;
+
+  // Capture server pointer to avoid race conditions if 'this' is destroyed
+  // (though HttpServer shouldn't be)
+  server_thread_ = std::make_unique<std::thread>([this, port]() {
+    LOG_INFO("HttpServer", "Starting API server on port %d", port);
+    bool ret = server_->listen("0.0.0.0", port);
+    if (!ret) {
+      LOG_ERROR("HttpServer",
+                "Failed to listen on port %d. Port might be in use.", port);
+    }
+    is_running_ = false;
+  });
+
+  return absl::OkStatus();
+}
+
+void HttpServer::Stop() {
+  if (is_running_) {
+    LOG_INFO("HttpServer", "Stopping API server...");
+    server_->stop();
+    if (server_thread_ && server_thread_->joinable()) {
+      server_thread_->join();
+    }
+    is_running_ = false;
+    LOG_INFO("HttpServer", "API server stopped");
+  }
+}
+
+bool HttpServer::IsRunning() const {
+  return is_running_;
+}
+
+void HttpServer::RegisterRoutes() {
+  server_->Get("/api/v1/health", HandleHealth);
+  server_->Get("/api/v1/models", HandleListModels);
+
+  // Handle CORS options for all routes?
+  // For now, we set CORS headers in individual handlers or via a middleware if
+  // httplib supported it easily.
+}
+
+}  // namespace api
+}  // namespace cli
+}  // namespace yaze