// This example demonstrates the ESP RainMaker with a standard Switch device.
#include <Arduino.h>
#include "RMaker.h"
#include "WiFi.h"
#include "WiFiProv.h"
#include "AppInsights.h"

#define DEFAULT_POWER_MODE true
const char *service_name = "PROV_1234";
const char *pop = "abcd1234";

// GPIO for push button
#if CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32C6
static int gpio_0 = 9;
static int gpio_switch = 7;
#else
// GPIO for virtual device
static int gpio_0 = 0;
static int gpio_switch = 16;
#endif

/* Variable for reading pin status*/
bool switch_state = true;

// The framework provides some standard device types like switch, lightbulb,
// fan, temperaturesensor.
static Switch *my_switch = NULL;

// WARNING: sysProvEvent is called from a separate FreeRTOS task (thread)!
void sysProvEvent(arduino_event_t *sys_event) {
  switch (sys_event->event_id) {
    case ARDUINO_EVENT_PROV_START:
#if CONFIG_IDF_TARGET_ESP32S2
      Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on SoftAP\n", service_name, pop);
      WiFiProv.printQR(service_name, pop, "softap");
#else
      Serial.printf("\nProvisioning Started with name \"%s\" and PoP \"%s\" on BLE\n", service_name, pop);
      WiFiProv.printQR(service_name, pop, "ble");
#endif
      break;
    case ARDUINO_EVENT_PROV_INIT:         WiFiProv.disableAutoStop(10000); break;
    case ARDUINO_EVENT_PROV_CRED_SUCCESS: WiFiProv.endProvision(); break;
    default:                              ;
  }
}

void write_callback(Device *device, Param *param, const param_val_t val, void *priv_data, write_ctx_t *ctx) {
  const char *device_name = device->getDeviceName();
  const char *param_name = param->getParamName();

  if (strcmp(param_name, "Power") == 0) {
    Serial.printf("Received value = %s for %s - %s\n", val.val.b ? "true" : "false", device_name, param_name);
    switch_state = val.val.b;
    (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
    param->updateAndReport(val);
  }
}

void setup() {
  Serial.begin(115200);
  pinMode(gpio_0, INPUT);
  pinMode(gpio_switch, OUTPUT);
  digitalWrite(gpio_switch, DEFAULT_POWER_MODE);

  Node my_node;
  my_node = RMaker.initNode("ESP RainMaker Node");

  // Initialize switch device
  my_switch = new Switch("Switch", &gpio_switch);
  if (!my_switch) {
    return;
  }
  // Standard switch device
  my_switch->addCb(write_callback);

  // Add switch device to the node
  my_node.addDevice(*my_switch);

  // This is optional
  RMaker.enableOTA(OTA_USING_TOPICS);
  // If you want to enable scheduling, set time zone for your region using
  // setTimeZone(). The list of available values are provided here
  // https://rainmaker.espressif.com/docs/time-service.html
  //  RMaker.setTimeZone("Asia/Shanghai");
  //  Alternatively, enable the Timezone service and let the phone apps set the
  //  appropriate timezone
  RMaker.enableTZService();

  RMaker.enableSchedule();

  RMaker.enableScenes();
  // Enable ESP Insights. Insteads of using the default http transport, this function will
  // reuse the existing MQTT connection of Rainmaker, thereby saving memory space.
  initAppInsights();

  RMaker.enableSystemService(SYSTEM_SERV_FLAGS_ALL, 2, 2, 2);

#if CONFIG_IDF_TARGET_ESP32S2
  WiFiProv.initProvision(NETWORK_PROV_SCHEME_SOFTAP, NETWORK_PROV_SCHEME_HANDLER_NONE);
#else
  WiFiProv.initProvision(NETWORK_PROV_SCHEME_BLE, NETWORK_PROV_SCHEME_HANDLER_FREE_BTDM);
#endif

  RMaker.start();

  WiFi.onEvent(sysProvEvent);  // Will call sysProvEvent() from another thread.
#if CONFIG_IDF_TARGET_ESP32S2
  WiFiProv.beginProvision(NETWORK_PROV_SCHEME_SOFTAP, NETWORK_PROV_SCHEME_HANDLER_NONE, NETWORK_PROV_SECURITY_1, pop, service_name);
#else
  WiFiProv.beginProvision(NETWORK_PROV_SCHEME_BLE, NETWORK_PROV_SCHEME_HANDLER_FREE_BTDM, NETWORK_PROV_SECURITY_1, pop, service_name);
#endif
}

void loop() {
  if (digitalRead(gpio_0) == LOW) {  // Push button pressed

    // Key debounce handling
    delay(100);
    int startTime = millis();
    while (digitalRead(gpio_0) == LOW) {
      delay(50);
    }
    int endTime = millis();

    if ((endTime - startTime) > 10000) {
      // If key pressed for more than 10secs, reset all
      Serial.printf("Reset to factory.\n");
      RMakerFactoryReset(2);
    } else if ((endTime - startTime) > 3000) {
      Serial.printf("Reset Wi-Fi.\n");
      // If key pressed for more than 3secs, but less than 10, reset Wi-Fi
      RMakerWiFiReset(2);
    } else {
      // Toggle device state
      switch_state = !switch_state;
      Serial.printf("Toggle State to %s.\n", switch_state ? "true" : "false");
      if (my_switch) {
        my_switch->updateAndReportParam(ESP_RMAKER_DEF_POWER_NAME, switch_state);
      }
      (switch_state == false) ? digitalWrite(gpio_switch, LOW) : digitalWrite(gpio_switch, HIGH);
    }
  }
  delay(100);
}
