Removed not needed config for pen. Use inkscape interface.

src/Config_Web.cpp

@@ -57,7 +57,7 @@ button { margin-top: 18px; border: 0; background: #0b5ed7; color: white; padding
 let lastSeq = 0;
 
 async function loadConfig() {
-  const resp = await fetch('/api/config');
+  const resp = await fetch('/api/config', { cache: 'no-store' });
   if (!resp.ok) throw new Error('Konfiguration konnte nicht geladen werden');
   return resp.json();
 }
@@ -92,6 +92,8 @@ async function saveConfig() {
     const text = await resp.text();
     throw new Error(text || 'Speichern fehlgeschlagen');
   }
+  const saved = await resp.json();
+  renderForm(saved);
   status.textContent = 'Gespeichert';
 }
 
@@ -143,6 +145,9 @@ void handleGetConfig() {
 		server.send(500, "text/plain", "Config storage not available");
 		return;
 	}
+	server.sendHeader("Cache-Control", "no-store, no-cache, must-revalidate");
+	server.sendHeader("Pragma", "no-cache");
+	server.sendHeader("Expires", "0");
 	server.send(200, "application/json", buildConfigJson());
 }
 
@@ -159,17 +164,18 @@ void handlePostConfig() {
 
 	String error;
 	if (!applyConfigJson(server.arg("plain"), error)) {
+		Log(String("Config JSON fehlerhaft: ") + error);
 		server.send(400, "text/plain", error);
 		return;
 	}
 
 	if (!saveConfigToFile()) {
+		Log("Config konnte nicht gespeichert werden");
 		server.send(500, "text/plain", "Could not save config");
 		return;
 	}
 
-	// penState = penUpPos;
-	// penServo.write(penState);
+	Log(String("Config gespeichert: penUpPos=") + g_iPEN_UP_POS + ", penDownPos=" + g_iPEN_DOWN_POS);
 	server.send(200, "application/json", buildConfigJson());
 }
 
@@ -180,11 +186,19 @@ void handleGetLogs() {
 	}
 	server.send(200, "application/json", buildLogsJson(since));
 }
+
+void handleNotFound() {
+	if (server.uri().startsWith("/api/")) {
+		server.send(404, "text/plain", "API endpoint not found");
+		return;
+	}
+	handleRoot();
+}
 } // namespace
 
 ConfigParameter configParameters[] = {
-	{"penUpPos", &penUpPos, "Pen Up Position", 5},
-	{"penDownPos", &penDownPos, "Pen Down Position", 20},
+	// {"penUpPos", &g_iPEN_UP_POS, "Pen Up Position", 5},
+	// {"penDownPos", &g_iPEN_DOWN_POS, "Pen Down Position", 20},
 };
 
 const size_t configParameterCount = sizeof(configParameters) / sizeof(configParameters[0]);
@@ -203,6 +217,7 @@ bool loadConfigFromFile() {
 
 	File file = SPIFFS.open(kConfigPath, "r");
 	if (!file) {
+		Log("config.json fehlt, defaults werden gespeichert");
 		return saveConfigToFile();
 	}
 
@@ -210,6 +225,7 @@ bool loadConfigFromFile() {
 	DeserializationError err = deserializeJson(doc, file);
 	file.close();
 	if (err) {
+		Log("config.json ist ungueltig, defaults werden gespeichert");
 		return saveConfigToFile();
 	}
 
@@ -230,6 +246,7 @@ bool loadConfigFromFile() {
 			param->description = item["description"].as<String>();
 		}
 	}
+	Log(String("Config geladen: penUpPos=") + g_iPEN_UP_POS + ", penDownPos=" + g_iPEN_DOWN_POS);
 
 	return true;
 }
@@ -237,6 +254,7 @@ bool loadConfigFromFile() {
 bool saveConfigToFile() {
 	File file = SPIFFS.open(kConfigPath, "w");
 	if (!file) {
+		Log("SPIFFS open write failed");
 		return false;
 	}
 
@@ -250,7 +268,11 @@ bool saveConfigToFile() {
 	}
 
 	bool ok = serializeJsonPretty(doc, file) > 0;
+	file.flush();
 	file.close();
+	if (!ok) {
+		Log("serializeJsonPretty failed");
+	}
 	return ok;
 }
 
@@ -324,7 +346,7 @@ void startWebInterface() {
 	server.on("/api/config", HTTP_GET, handleGetConfig);
 	server.on("/api/config", HTTP_POST, handlePostConfig);
 	server.on("/api/logs", HTTP_GET, handleGetLogs);
-	server.onNotFound(handleRoot);
+	server.onNotFound(handleNotFound);
 	server.begin();
 }