first draft - use it as a library

src/webserver.h

@@ -0,0 +1,54 @@
+#ifdef ESP32
+#include <AsyncTCP.h>
+#elif defined(ESP8266)
+#include <ESPAsyncTCP.h>
+#endif
+#include <ESPAsyncWebServer.h>
+#include "ha.h"
+
+AsyncWebServer server(80);
+
+namespace WebServer {
+    void notFound(AsyncWebServerRequest *request) {
+        request->send(404, "text/plain", "Not found");
+    }
+
+    void setup() {
+
+        server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
+            request->send(200, "text/plain", "Hello, world");
+            });
+
+        server.on("/switch", HTTP_PUT, [](AsyncWebServerRequest *request) {
+            if (request->hasParam("id") && request->hasParam("state")) {
+                AsyncWebParameter* switchId = request->getParam("id");
+                AsyncWebParameter* switchState = request->getParam("state");
+                auto cmd = Command::mapCommandIds[string(switchId->value().c_str())];
+                if (cmd) cmd->onCommand(switchState->value().c_str());
+                request->send(200, "text/plain", switchState->value().c_str());
+            } else {
+                request->send(200, "text/plain", "No parameters provided");
+            }
+            });
+
+        server.on("/switch", HTTP_GET, [](AsyncWebServerRequest *request) {
+            char switchList[1024] = {};
+            for ( auto it = Command::mapCommandIds.begin(); it != Command::mapCommandIds.end(); ++it )
+                snprintf(switchList, sizeof(switchList),  "%s ", it->first.c_str());
+            request->send(200, "text/plain", switchList);
+            });
+
+        server.on("/restart", HTTP_GET, [](AsyncWebServerRequest *request) {
+            request->send(200, "text/plain");
+            ESP.restart();
+            });
+
+        server.onNotFound(notFound);
+
+        server.begin();
+    }
+
+    void stop() {
+        server.end();
+    }
+}