// ================================================================
// MAILBOX MONITOR
// 
// ================================================================

#include <ArduinoJson.h>
#include <ESP8266WiFi.h>          //https://github.com/esp8266/Arduino
#include <ESP8266HTTPClient.h>
//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>         //https://github.com/tzapu/WiFiManager

// Define deep sleep
#define uS_TO_m_Factor 60000000
const int sleepTimeM=5; // 5 minutes

// Prox Sensor Input GPIO5 (pin D1)
#define prox 5
// Test LED GPIO4 (pin D2)
#define testled 4

const String mailin = "http://www.yoursite.com/mail_alert/?mail=yes";
const String mailout = "http://www.yoursite.com/mail_alert/?mail=no";

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

    pinMode(prox, INPUT_PULLUP);
    pinMode(testled, OUTPUT);

    //WiFiManager
    //Local intialization. Once its business is done, there is no need to keep it around
    WiFiManager wifiManager;
    //reset saved settings
    //wifiManager.resetSettings();
    
    //set custom ip for portal
    //wifiManager.setAPStaticIPConfig(IPAddress(10,0,1,1), IPAddress(10,0,1,1), IPAddress(255,255,255,0));

    //fetches ssid and pass from eeprom and tries to connect
    //if it does not connect it starts an access point with the specified name
    //here  "AutoConnectAP"
    //and goes into a blocking loop awaiting configuration
    wifiManager.autoConnect("AutoConnectAP");
    //or use this for auto generated name ESP + ChipID
    //wifiManager.autoConnect();

 delay(1000);
    if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
    Serial.println("connected...yeey :)");
    }
}

void loop() {
    // put your main code here, to run repeatedly:

    delay(1000);
   
   // Read the prox switch.
    if(digitalRead(prox) == LOW){
      if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
       HTTPClient http;
      http.setTimeout(3000);
      http.begin(mailin); //Specify the URL
      int httpCode = http.GET();  //Make the request
        if (httpCode > 0) { //Check for the returning code
        String payload = http.getString();
        StaticJsonBuffer<100> jsonBuffer;
        JsonObject& object = jsonBuffer.parseObject(payload);
        String stat  = object["STATUS"];
        Serial.println("Mail Inserted Into Mailbox");
        digitalWrite(testled, HIGH);
        delay(250);
        digitalWrite(testled, LOW);
        delay(250);
        digitalWrite(testled, HIGH);
        delay(250);
        digitalWrite(testled, LOW);
        delay(250);
        ESP.deepSleep(sleepTimeM * uS_TO_m_Factor, WAKE_RF_DEFAULT);
        }
        http.end(); //Free the resources
      }
    }

    if(digitalRead(prox) == HIGH){
      if (WiFi.status() == WL_CONNECTED) { //Check WiFi connection status
      HTTPClient http;
      http.setTimeout(3000);
      http.begin(mailout); //Specify the URL
      int httpCode = http.GET();  //Make the request
        if (httpCode > 0) { //Check for the returning code
        String payload = http.getString();
        StaticJsonBuffer<100> jsonBuffer;
        JsonObject& object = jsonBuffer.parseObject(payload);
        String stat  = object["STATUS"];
        Serial.println("Mail Removed From Mailbox");
        digitalWrite(testled, HIGH);
        delay(500);
        digitalWrite(testled, LOW);
        delay(500);
        ESP.deepSleep(sleepTimeM * uS_TO_m_Factor, WAKE_RF_DEFAULT);
        }
        http.end(); //Free the resources
      }
    }
    
}