Missing files in commit

src/lib/button_handler.cpp

@@ -0,0 +1,63 @@
+#include "button_handler.hpp"
+
+TaskHandle_t buttonTaskHandle = NULL;
+const TickType_t debounceDelay = pdMS_TO_TICKS(50);
+TickType_t lastDebounceTime = 0;
+
+void buttonTask(void *parameter)
+{
+    while (1)
+    {
+        ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
+        TickType_t currentTime = xTaskGetTickCount();
+        if ((currentTime - lastDebounceTime) >= debounceDelay)
+        {
+            lastDebounceTime = currentTime;
+
+            if (!digitalRead(MCP_INT_PIN))
+            {
+                uint pin = mcp.getLastInterruptPin();
+
+                Serial.printf("Button pressed: %d", pin);
+                // switch (pin)
+                // {
+                // case 3:
+                //     toggleScreenTimer();
+                //     break;
+                // case 2:
+                //     nextScreen();
+                //     break;
+                // case 1:
+                //     previousScreen();
+                //     break;
+                // case 0:
+                //     showNetworkSettings();
+                //     break;
+                // }
+            }
+            mcp.clearInterrupts();
+            // Very ugly, but for some reason this is necessary
+            while (!digitalRead(MCP_INT_PIN))
+            {
+                mcp.clearInterrupts();
+            }
+        }
+    }
+}
+
+void IRAM_ATTR handleButtonInterrupt()
+{
+    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
+    xTaskNotifyFromISR(buttonTaskHandle, 0, eNoAction, &xHigherPriorityTaskWoken);
+    if (xHigherPriorityTaskWoken == pdTRUE)
+    {
+        portYIELD_FROM_ISR();
+    }
+}
+
+void setupButtonTask()
+{
+    xTaskCreate(buttonTask, "ButtonTask", 4096, NULL, tskIDLE_PRIORITY, &buttonTaskHandle); // Create the FreeRTOS task
+    // Use interrupt instead of task
+    attachInterrupt(MCP_INT_PIN, handleButtonInterrupt, CHANGE);
+}