Separate logic further into functions, allowing reconnection to WiFi

src/main.cpp

@@ -19,32 +19,41 @@ bool testHTTP() {
 bool uplinkWorks() { return testHTTP(); }
 
 void setup() {
-  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
   Serial.begin(9600);
-
-  Serial.print("Connecting to WiFi");
-  while (WiFi.status() != WL_CONNECTED) {
-    delay(500);
-    Serial.print(".");
-  }
-  Serial.println();
-
-  Serial.print("Connected, IP address: ");
-  Serial.println(WiFi.localIP());
-
   pinMode(LED_BUILTIN, OUTPUT);
   pinMode(RELAY, OUTPUT);
 }
 
-void loop() {
+void testInternet() {
   if (uplinkWorks()) {
-    Serial.println("Network is up");
+    Serial.println("Internet is up");
     digitalWrite(LED_BUILTIN, HIGH);
     digitalWrite(RELAY, HIGH);
   } else {
-    Serial.println("Network is down");
+    Serial.println("Internet is down");
     digitalWrite(LED_BUILTIN, LOW);
     digitalWrite(RELAY, LOW);
   }
+}
+
+void ensureWiFiConnection() {
+  wl_status_t status = WiFi.status();
+  if(status == WL_CONNECTED) return;
+  else {
+    Serial.print("WiFi is disconnected, now connecting");
+    WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
+    while (WiFi.status() != WL_CONNECTED) {
+        delay(500);
+        Serial.print(".");
+    }
+    Serial.println();
+
+    Serial.print("Connected, IP address: ");
+    Serial.println(WiFi.localIP());
+  }
+}
+void loop() {
+  ensureWiFiConnection();
+  testInternet();
   delay(5000); // TODO: cleaner interval between tests
 }