/*
  Dweet.io POST client for ArduinoHttpClient library
  Connects to dweet.io once every ten seconds,
  sends a POST request and a request body.

  Shows how to use Strings to assemble path and body

  note: WiFi SSID and password are stored in config.h file.
  If it is not present, add a new tab, call it "config.h"
  and add the following variables:
  char ssid[] = "ssid";     //  your network SSID (name)
  char pass[] = "password"; // your network password

  created 15 Feb 2016
  by Tom Igoe

  this example is in the public domain
*/

#include <SPI.h>
#include <ArduinoHttpClient.h>
#include <WiFi101.h>
#include <LiquidCrystal.h>
#include <RTCZero.h>
#include "arduino_secrets.h"

///////please enter your sensitive data in the Secret tab/arduino_secrets.h
/////// Wifi Settings ///////
char ssid[] = SECRET_SSID;
char pass[] = SECRET_PASS;

const char serverAddress[] = "connected-devices-itp.herokuapp.com";  // server address
int port = 443;

WiFiSSLClient wifi;
HttpClient client = HttpClient(wifi, serverAddress, port);
int status = WL_IDLE_STATUS;
int statusCode = 0;
String response;

LiquidCrystal lcd (0, 1, 2, 3, 4, 5);

RTCZero rtc;

bool sendRequest = true;

String path;
String contentType;
String postData;
//const int GMT = -4;
unsigned long epoch;
int alarmMin = 45;


void setup() {
  Serial.begin(9600);
  //while (!Serial);
  while ( status != WL_CONNECTED) {
    Serial.print("Attempting to connect to Network named: "); //this won't print
    Serial.println(ssid);                   // print the network name (SSID);
    lcd.begin(16, 2);
    lcd.setCursor(0, 0); // Lcd first row is 0
    lcd.print("Connecting to:");
    lcd.setCursor(0, 1); // Lcd first row is 0
    lcd.print(ssid);

    // Connect to WPA/WPA2 network:
    status = WiFi.begin(ssid, pass);
  }

  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());
  lcd.clear();
  lcd.setCursor(0, 0); // Lcd first row is 0
  lcd.print("Connected");
  delay(1000);

  // print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  rtc.begin();
  epoch = WiFi.getTime();
  rtc.setEpoch(epoch);
  rtc.setTime(rtc.getHours(), rtc.getMinutes(), rtc.getSeconds());
  //rtc.setDate(day, month, year);

  //rtc.setAlarmTime(0, 0, 0);    //in this way the request is sent every minute at 0 seconds
  rtc.enableAlarm(rtc.MATCH_MMSS);
  //rtc.enableAlarm(rtc.MATCH_SS);

  rtc.attachInterrupt(alarmMatch);
}

void loop() {
  while ( status != WL_CONNECTED) {
    //    Serial.print("Attempting to connect to Network named: ");
    //    Serial.println(ssid);                   // print the network name (SSID);
    lcd.begin(16, 2);
    lcd.setCursor(0, 0); // Lcd first row is 0
    lcd.print("Connecting to:");
    lcd.setCursor(0, 1); // Lcd first row is 0
    lcd.print(ssid);

    // Connect to WPA/WPA2 network:
    status = WiFi.begin(ssid, pass);
  }

  // assemble the path for the POST message:
  // String dweetName = "cheesy-temp-sensor";
  path = "/add";  // "/dweet/for/" + dweetName;
  contentType = "application/json";

  // assemble the body of the POST message:
  int sensorValue = analogRead(A0);
  float voltage = sensorValue *  (3.3 / 1024.0);
  float temperature = (voltage - 0.525) / 0.01;
  delay(2);

  int potValue = analogRead(A1);
  float potVolt = (potValue / 1024.0) * 1000;
  // convert the millivolts to temperature celsius:
  float potTemp = map(potVolt, 0, 1000, 12, 31);
  // String postData = "{\"sensorValue\":\"";

  lcd.clear();
  lcd.setCursor(0, 0); // Lcd first row is 0
  String currentTemp = "Temp: ";
  currentTemp += temperature;
  lcd.print(currentTemp);
  lcd.setCursor(0, 1);
  String setTemp = "Set Temp: ";
  setTemp += potTemp;
  lcd.print(setTemp);


  postData = "{\"macAddress\":\"F8:F0:05:F7:D0:AD\", \"sessionKey\": \"eaeba03b-26c1-409e-a4c7-bd26432a854c\", \
  \"data\": {\"temp\":\"";
  postData += temperature;
  postData += "\", \"setTemp\":\"";
  postData += potTemp;
  postData += "\"}}";
  //Serial.println(postData);

  if (sendRequest) {
    sendRequest = false;
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Sending Request"); //hanging here sometimes and dual posting on start
    httpRequest();
  }
  delay(1000);
}

void httpRequest() {
  sendRequest = false;
  Serial.println("making POST request");
  //Serial.println(sensorValue);
  client.beginRequest();
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Posting"); //hanging here sometimes and dual posting on start
  // send the POST request
  client.post(path, contentType, postData);

  // read the status code and body of the response
  statusCode = client.responseStatusCode();
  response = client.responseBody();
  client.stop();
  if (statusCode == 200) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Posted!");
    alarmMin = (alarmMin + 5) % 60;
    rtc.setAlarmTime(0, alarmMin, 0);    //in this way the request is sent every minute at 0 seconds
    Serial.println(alarmMin);
    delay(100);

  }
  else {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Did Not Post!");
    delay(888);
    sendRequest = true;
    WiFi.end();
    delay(10);
    WiFi.begin(ssid, pass);
  }
  Serial.print("Status code: ");
  Serial.println(statusCode);
  Serial.print("Response: ");
  Serial.println(response);

  Serial.println("Wait five minutes\n");
  delay(5);
  //  WiFi.end();
  //  delay(10);
  //  WiFi.begin(ssid, pass);

}

void alarmMatch() {
  sendRequest = true;
}