connect to configured mqtt broker

CMakeLists.txt

@@ -21,6 +21,7 @@ file(GLOB SRCFILES
         Nuki.cpp
         MqttTopics.h
         WebCfgServer.cpp
+        PreferencesKeys.h
         lib/ESP32_BLE_Arduino-1.0.1/src/*.cpp
         lib/ESP32_BLE_Arduino-1.0.1/src/*.h
         lib/WiFiManager/WiFiManager.cpp

Network.cpp

@@ -3,11 +3,13 @@
 #include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
 #include "Arduino.h"
 #include "MqttTopics.h"
+#include "PreferencesKeys.h"
 
 Network* nwInst;
 
-Network::Network()
-: _mqttClient(_wifiClient)
+Network::Network(Preferences* preferences)
+: _mqttClient(_wifiClient),
+  _preferences(preferences)
 {
     nwInst = this;
 }
@@ -39,15 +41,20 @@ void Network::initialize()
         Serial.println("connected...yeey :)");
     }
 
-    _mqttClient.setServer("192.168.0.100", 1883);
+    const char* brokerAddr = _preferences->getString(preference_mqtt_broker).c_str();
+    strcpy(_mqttBrokerAddr, brokerAddr);
+
+    Serial.print("MQTT Broker: ");
+    Serial.println(_mqttBrokerAddr);
+    _mqttClient.setServer(_mqttBrokerAddr, 1883);
     _mqttClient.setCallback(Network::onMqttDataReceivedCallback);
-    _mqttClient.publish("nuki/test", "OK");
 }
 
 
 bool Network::reconnect()
 {
-    while (!_mqttClient.connected()) {
+    while (!_mqttClient.connected() && millis() > _nextReconnect)
+    {
         Serial.println("Attempting MQTT connection");
         // Attempt to connect
         if (_mqttClient.connect("nukiHub")) {
@@ -55,10 +62,12 @@ bool Network::reconnect()
 
             // ... and resubscribe
             _mqttClient.subscribe(mqtt_topc_lockstate_action);
-        } else {
+        }
+        else
+        {
             Serial.print("MQTT connect failed, rc=");
             Serial.println(_mqttClient.state());
-            vTaskDelay( 5000 / portTICK_PERIOD_MS);
+            _nextReconnect = millis() + 5000;
         }
     }
 }

Network.h

@@ -2,12 +2,14 @@
 
 #include <PubSubClient.h>
 #include <WiFiClient.h>
+#include <Preferences.h>
 #include "NukiConstants.h"
 
 class Network
 {
 public:
-    Network();
+    explicit Network(Preferences* preferences);
+    virtual ~Network() = default;
 
     void initialize();
     void update();
@@ -25,6 +27,10 @@ private:
 
     PubSubClient _mqttClient;
     WiFiClient _wifiClient;
+    Preferences* _preferences;
+
+    unsigned long _nextReconnect = 0;
+    char _mqttBrokerAddr[100] = {0};
 
     void (*_lockActionReceivedCallback)(const char* value) = NULL;
 };

PreferencesKeys.h

@@ -0,0 +1,3 @@
+#pragma once
+
+#define preference_mqtt_broker "mqttbroker"

WebCfgServer.cpp

@@ -1,8 +1,10 @@
 #include "WebCfgServer.h"
 #include <WiFiClient.h>
+#include "PreferencesKeys.h"
 
-WebCfgServer::WebCfgServer()
-: _wifiServer(80)
+WebCfgServer::WebCfgServer(Preferences* preferences)
+: _wifiServer(80),
+  _preferences(preferences)
 {}
 
 
@@ -13,6 +15,8 @@ void WebCfgServer::initialize()
 
 void WebCfgServer::update()
 {
+    bool configChanged = false;
+
     // Create a client connections
     WiFiClient client = _wifiServer.available();
 
@@ -60,22 +64,26 @@ void WebCfgServer::update()
                 if(lastTokenType == TokenType::MQTT_SERVER && tokenType == TokenType::NONE)
                 {
                     configChanged = true;
-                    Serial.print("### ");
-                    Serial.println(token);
-//                    strcpy(_configuration->mqttServerAddress, token);
+                    _preferences->putString(preference_mqtt_broker, token);
+                    configChanged = true;
                 }
             }
             lastToken = token;
             token = strtok(NULL, "?=&");
         }
-//
-//        if(configChanged)
-//        {
-//            _configuration->writeEeprom();
-//            _enabled = false;
-//        }
+
+        if(configChanged)
+        {
+            _enabled = false;
+            _preferences->end();
+            Serial.println(F("Restarting"));
+            vTaskDelay( 200 / portTICK_PERIOD_MS);
+            ESP.restart();
+        }
     }
 
+    vTaskDelay(200 / portTICK_PERIOD_MS);
+
 }
 
 void WebCfgServer::serveHtml(WiFiClient &client)
@@ -93,7 +101,7 @@ void WebCfgServer::serveHtml(WiFiClient &client)
     client.println("<FORM ACTION=method=get >");
 
     client.print("MQTT Server: <INPUT TYPE=TEXT VALUE=\"");
-    client.print("");
+    client.print(_preferences->getString(preference_mqtt_broker));
     client.println("\" NAME=\"MQTTSERVER\" SIZE=\"25\" MAXLENGTH=\"40\"><BR>");
 
 //    client.print("DNS Server: <INPUT TYPE=TEXT VALUE=\"");

WebCfgServer.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <WiFiServer.h>
+#include <Preferences.h>
 
 enum class TokenType
 {
@@ -11,7 +12,7 @@ enum class TokenType
 class WebCfgServer
 {
 public:
-    WebCfgServer();
+    WebCfgServer(Preferences* preferences);
     ~WebCfgServer() = default;
 
     void initialize();
@@ -23,6 +24,7 @@ private:
     TokenType getParameterType(char*& token);
 
     WiFiServer _wifiServer;
+    Preferences* _preferences;
 
     bool _enabled = true;
 };

main.cpp

@@ -38,8 +38,8 @@ void setup()
 {
     preferences = new Preferences();
     preferences->begin("nukihub", false);
-    network = new Network();
-    webCfgServer = new WebCfgServer();
+    network = new Network(preferences);
+    webCfgServer = new WebCfgServer(preferences);
     nuki = new Nuki("Main Door", 2020001, network);
 
     network->initialize();