From e99474c3cf2ea000af58f929adc52b9fc3a5fb53 Mon Sep 17 00:00:00 2001
From: Christoph Hagen <github@christophhagen.de>
Date: Sat, 4 Nov 2023 11:14:40 +0100
Subject: [PATCH] Reset wifi and socket once per day

---
 include/controller.h     |  4 ++++
 include/example_config.h |  3 +++
 src/controller.cpp       | 11 +++++++++++
 src/main.cpp             |  1 +
 4 files changed, 19 insertions(+)

diff --git a/include/controller.h b/include/controller.h
index 0850293..9d5acd8 100644
--- a/include/controller.h
+++ b/include/controller.h
@@ -20,6 +20,8 @@ struct WifiConfiguration {
 
     // The interval to reconnect to WiFi if the connection is broken
     uint32_t reconnectInterval;
+
+    uint32_t periodicReconnectInterval;
 };
 
 struct KeyConfiguration {
@@ -76,4 +78,6 @@ private:
     void prepareResponseBuffer(SesameEvent event, uint8_t deviceId = 0);
     void sendPreparedLocalResponse(AsyncWebServerRequest *request);
     void sendPreparedServerResponse();
+
+    void periodicallyReconnectWifiAndSocket(uint32_t millis);
 };
\ No newline at end of file
diff --git a/include/example_config.h b/include/example_config.h
index 5f767d9..fc3b399 100644
--- a/include/example_config.h
+++ b/include/example_config.h
@@ -49,6 +49,9 @@ constexpr const char* networkName = "Sesame-Device";
 // The interval to reconnect to WiFi if the connection is broken
 constexpr uint32_t wifiReconnectInterval = 10000;
 
+// The interval to reconnect to WiFi if the connection is broken
+constexpr uint32_t wifiPeriodicReconnectInterval = 86400;
+
 /* Local server */
 
 // The port for the local server to directly receive messages over WiFi
diff --git a/src/controller.cpp b/src/controller.cpp
index f879589..ee7c9ef 100644
--- a/src/controller.cpp
+++ b/src/controller.cpp
@@ -46,6 +46,7 @@ void SesameController::loop(uint32_t millis) {
     server.loop();
     servo.loop(millis);
 
+    periodicallyReconnectWifiAndSocket(millis);
     ensureWiFiConnection(millis);
     ensureWebSocketConnection();
 }
@@ -213,4 +214,14 @@ bool SesameController::convertHexMessageToBinary(const char* str) {
         receivedMessageBuffer[pos/2] = (uint8_t)(hashmap[idx0] << 4) | hashmap[idx1];
     };
     return true;
+}
+
+void SesameController::periodicallyReconnectWifiAndSocket(uint32_t millis) {
+    static uint32_t nextWifiReconnect = wifiConfig.periodicReconnectInterval;
+    if (millis > nextWifiReconnect) {
+        nextWifiReconnect += wifiConfig.periodicReconnectInterval;
+
+        server.disconnect();
+        WiFi.disconnect();
+    }
 }
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index ffde7a5..2386f7e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -49,6 +49,7 @@ void setup() {
         .password = wifiPassword,
         .networkName = networkName,
         .reconnectInterval = wifiReconnectInterval,
+        .periodicReconnectInterval = wifiPeriodicReconnectInterval,
     };
 
     KeyConfiguration keyConfig {