/*
 * Copyright Kris Occhipinti December 2, 2021
 * License GPLv3 - https://www.gnu.org/licenses/gpl-3.0.txt
 * https://filmsbykris.com
 * 
*/

#include "DHTesp.h" // Click here to get the library: http://librarymanager/All#DHTesp

#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino

//needed for library
#include <DNSServer.h>
#include <WiFiManager.h>         //https://github.com/tzapu/WiFiManager
#include <WiFiClient.h>
#include <ESP8266HTTPClient.h>

DHTesp dht;

char url[]="http://yoururl.com/submit.php";

//TEMP SENSOR PIN
int pin=14; //D5 on WeMos

//amount to wait before loop start
int wait=10000;

//amount to wait each loop
int loop_wait=5000;

void request();

void setup() {
    WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP

    // put your setup code here, to run once:
    Serial.begin(115200);

    Serial.println();
    String thisBoard= ARDUINO_BOARD;
    Serial.println(thisBoard);

  // Autodetect is not working reliable, don't use the following line
  // dht.setup(17);
  // use this instead: 
     dht.setup(pin, DHTesp::DHT11); 
     
    // WiFi.mode(WiFi_STA); // it is a good practice to make sure your code sets wifi mode how you want it.

    //WiFiManager, Local intialization. Once its business is done, there is no need to keep it around
    WiFiManager wm;

    //reset settings - wipe credentials for testing
    //wm.resetSettings();

    // Automatically connect using saved credentials,
    // if connection fails, it starts an access point with the specified name ( "AutoConnectAP"),
    // if empty will auto generate SSID, if password is blank it will be anonymous AP (wm.autoConnect())
    // then goes into a blocking loop awaiting configuration and will return success result

    bool res;
    // res = wm.autoConnect(); // auto generated AP name from chipid
    res = wm.autoConnect("Wifi_Tempature"); // anonymous ap
    // res = wm.autoConnect("AutoConnectAP","password"); // password protected ap

    if(!res) {
        Serial.println("Failed to connect");
        // ESP.restart();
    } 
    else {
        //if you get here you have connected to the WiFi    
        Serial.println("connected...yeey :)");
        request(url);
    }
  delay(wait);
}

void request(char *URL){
    WiFiClient client;

    HTTPClient http;

    Serial.print("[HTTP] begin...\n");
    if (http.begin(client, URL)) {  // HTTP


      Serial.print("[HTTP] GET...\n");
      // start connection and send HTTP header
      int httpCode = http.GET();

      // httpCode will be negative on error
      if (httpCode > 0) {
        // HTTP header has been send and Server response header has been handled
        Serial.printf("[HTTP] GET... code: %d\n", httpCode);

        // file found at server
        if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
          String payload = http.getString();
          Serial.println(payload);
        }
      } else {
        Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
      }

      http.end();
    } else {
      Serial.printf("[HTTP} Unable to connect\n");
    }
  

  
}

void get_temp(){
  delay(dht.getMinimumSamplingPeriod());

  float humidity = dht.getHumidity();
  float temperature = dht.getTemperature();
  float f = dht.toFahrenheit(temperature);
  float index_c = dht.computeHeatIndex(temperature, humidity, false);
  float index_f = dht.computeHeatIndex(dht.toFahrenheit(temperature), humidity, true);
  

  Serial.print(humidity, 1);
  Serial.print(" humidity\t\t");
  Serial.print(temperature, 1);
  Serial.print("°C\t\t");
  Serial.print(f, 1);
  Serial.print("°F\t\tHeat Index:");
  Serial.print(index_c, 1);
  Serial.print("°C\t\t");
  Serial.print(index_f, 1);
  Serial.println("°F");

  String h = String(humidity, 1);// using a float and the decimal places
  String c = String(temperature, 1);// using a float and the decimal places
  String ft = String(f, 1);// using a float and the decimal places
  String ic = String(index_c, 1);// using a float and the decimal places
  String iF = String(index_f, 1);// using a float and the decimal places
  String d = h+"|"+c+"|"+ft+"|"+ic+"|"+iF;
  
  char URL[100];
  strcpy(URL, url);
  strcat(URL, "?data=");
  strcat(URL, d.c_str());
  Serial.println(URL);
  request(URL);
}

void loop() {
  get_temp();
  //request(url);
  delay(loop_wait);  
}