/**
 * Coded for ESP32-C6 https://www.dfrobot.com/product-2778.html
 * Remember to put your wifi credentials into wifiMulti.addAP("", "");
 */

#include <Arduino.h>

#include <WiFi.h>
#include <WiFiMulti.h>

#include <HTTPClient.h>

#define USE_SERIAL Serial

WiFiMulti wifiMulti;

#define uS_TO_S_FACTOR 1000000ULL /* Conversion factor for micro seconds to seconds */
#define TIME_TO_SLEEP  60          /* Time ESP32 will go to sleep (in seconds) */

RTC_DATA_ATTR int bootCount = 0;

void setup() {

  USE_SERIAL.begin(115200);
  //sensors.begin();
  
  delay(1000);
  
  USE_SERIAL.println();
  USE_SERIAL.println();
  USE_SERIAL.println();

  for (uint8_t t = 4; t > 0; t--) {
    USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
    USE_SERIAL.flush();
    delay(1000);
  }

  wifiMulti.addAP("", "");
  delay(3000);
  
  // wait for WiFi connection
  if ((wifiMulti.run() == WL_CONNECTED)) {

    HTTPClient http;

    float temp_celsius = temperatureRead();
    
    String url="http://192.168.1.221:8086/write?db=garagedb";
    
    String value_data="green_temp,host=greenhouse value=";
    value_data.concat(temp_celsius);
    USE_SERIAL.print("[SENSOR] Temp: ");
    USE_SERIAL.println(temp_celsius);
    
    USE_SERIAL.print("[HTTP] begin...\n");
    // configure traged server and url
    http.begin(url);  //HTTP

    int httpResponseCode = http.POST(value_data);
    
    if(httpResponseCode>0){
      USE_SERIAL.print("Success: ");
      USE_SERIAL.println(httpResponseCode);   //Print return code
    } else {
      USE_SERIAL.print("Error on sending POST: ");
      USE_SERIAL.println(httpResponseCode);
    }

    http.end();
    USE_SERIAL.print("[HTTP] complete\n");

/******************************/
    
    uint32_t Vbatt = 0;
    for(int i = 0; i < 4; i++) {
      Vbatt += analogReadMilliVolts(0); // Read and accumulate ADC voltage
    }
    float Vbattf = 2 * Vbatt / 4 / 1000.0;     // Adjust for 1:2 divider and convert to volts
    
    USE_SERIAL.print("[SENSOR] Voltage: ");
    USE_SERIAL.println(Vbattf, 3);                  // Output voltage to 3 decimal places
    value_data="battery_v,host=greenhouse value=";
    value_data.concat(Vbattf);

    USE_SERIAL.print("[HTTP] begin...\n");
    // configure traged server and url
    http.begin(url);  //HTTP

    httpResponseCode = http.POST(value_data);
    
    if(httpResponseCode>0){
      USE_SERIAL.print("Success: ");
      USE_SERIAL.println(httpResponseCode);   //Print return code
    } else {
      USE_SERIAL.print("Error on sending POST: ");
      USE_SERIAL.println(httpResponseCode);
      httpResponseCode = http.POST(value_data);
      USE_SERIAL.print("Error on sending POST: ");
      USE_SERIAL.println(httpResponseCode);
    }

    http.end();
    USE_SERIAL.print("[HTTP] complete\n");

/******************************/
  }

  USE_SERIAL.println("Sleep");
  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
  USE_SERIAL.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) + " Seconds");

  USE_SERIAL.println("Going to sleep now");
  USE_SERIAL.flush();
  esp_deep_sleep_start();
  USE_SERIAL.println("This will never be printed");
  
}

void loop() {
}