dezibot/src/communication/Communication.cpp

#include "Communication.h"

Scheduler userScheduler; // to control your personal task
painlessMesh mesh;
uint32_t Communication::groupNumber = 0;

// User-defined callback function pointer
void (*Communication::userCallback)(String &msg) = nullptr;

void Communication::sendMessage(String msg) {
  String data = String(groupNumber) + "#" + msg;
  mesh.sendBroadcast(data);
}

// Needed for painless library
void Communication::receivedCallback(uint32_t from, String &msg) {
  int separatorIndex = msg.indexOf('#');
  if (separatorIndex != -1) {
    String groupNumberStr = msg.substring(0, separatorIndex);
    uint32_t num = groupNumberStr.toInt();
    String restOfMsg = msg.substring(separatorIndex + 1);

    Serial.printf("startHere: Received from %u groupNumber=%u msg=%s\n", from,
                  num, restOfMsg.c_str());

    if (groupNumber != num)
      return;

    // Execute user-defined callback if it is set
    if (userCallback) {
      userCallback(restOfMsg);
    }
  }
}

void newConnectionCallback(uint32_t nodeId) {
  Serial.printf("--> startHere: New Connection, nodeId = %u\n", nodeId);
}

void changedConnectionCallback() { Serial.printf("Changed connections\n"); }

void nodeTimeAdjustedCallback(int32_t offset) {
  Serial.printf("Adjusted time %u. Offset = %d\n", mesh.getNodeTime(), offset);
}

void vTaskUpdate(void *pvParameters) {
  for (;;) {
    if (PowerManager::waitForCurrentAllowance(
            PowerParameters::PowerConsumers::WIFI,
            PowerParameters::CurrentConsumptions::CURRENT_WIFI_PEAK +
                PowerParameters::CurrentConsumptions::CURRENT_WIFI_BASE,
            MESH_MAX_EXECUTION_DELAY_MS, NULL)) {
      mesh.update();
    } else {
      ESP_LOGW(TAG, "Skipping mesh update after not being granted power");
    }
    PowerManager::waitForCurrentAllowance(
        PowerParameters::PowerConsumers::WIFI,
        PowerParameters::CurrentConsumptions::CURRENT_WIFI_BASE,
        MESH_MAX_EXECUTION_DELAY_MS, NULL);
  }
}

void Communication::setGroupNumber(uint32_t number) { groupNumber = number; }

// Method to set the user-defined callback function
void Communication::onReceive(void (*callbackFunc)(String &msg)) {
  userCallback = callbackFunc;
}

void Communication::begin(void) {
  Serial.begin(115200);

  // mesh.setDebugMsgTypes( ERROR | MESH_STATUS | CONNECTION | SYNC |
  // COMMUNICATION | GENERAL | MSG_TYPES | REMOTE ); // all types on
  mesh.setDebugMsgTypes(
      ERROR |
      STARTUP); // set before init() so that you can see startup messages
  if (!PowerManager::waitForCurrentAllowance(
          PowerParameters::PowerConsumers::WIFI,
          PowerParameters::CurrentConsumptions::CURRENT_WIFI_BASE,
          MESH_MAX_EXECUTION_DELAY_MS, NULL)) {
    ESP_LOGE(TAG, "Failed to get power for mesh initialization");
    Serial.println("Failed to get power for mesh initialization");
  }
  mesh.init(MESH_PREFIX, MESH_PASSWORD, &userScheduler, MESH_PORT);
  mesh.onReceive(&receivedCallback);
  mesh.onNewConnection(&newConnectionCallback);
  mesh.onChangedConnections(&changedConnectionCallback);
  mesh.onNodeTimeAdjusted(&nodeTimeAdjustedCallback);

  static uint8_t ucParameterToPass;
  TaskHandle_t xHandle = NULL;

  xTaskCreate(vTaskUpdate, "vTaskMeshUpdate", 4096, &ucParameterToPass,
              tskIDLE_PRIORITY, &xHandle);
  configASSERT(xHandle);
};