/*  
 *  Waspmote Starter Kit
 *  
 *  Copyright (C) Libelium Comunicaciones Distribuidas S.L. 
 *  http://www.libelium.com 
 *  
 *  This program is free software: you can redistribute it and/or modify 
 *  it under the terms of the GNU General Public License as published by 
 *  the Free Software Foundation, either version 3 of the License, or 
 *  (at your option) any later version. 
 *  
 *  This program is distributed in the hope that it will be useful, 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License 
 *  along with this program.  If not, see http://www.gnu.org/licenses/. 
 *  
 *  Version:           1.0
 *  Design:            David Gascón 
 *  Implementation:    Marcos Martinez & Victor Boria
 */
 
#include <WaspXBee802.h>

////////////////////////////////////////////////
// XBee Parameters
////////////////////////////////////////////////

// Destination MAC address
char* MAC_ADDRESS="0013A200400A3451";

packetXBee* packet; 
char pac[200];

////////////////////////////////////////////////
// Light parameters
////////////////////////////////////////////////
int light = 0;

//You can adjust this value according to your office light level
#define lightThreshold 50

void setup() {
	
  ////////////////////////////////////////////////
  // 0. Initialization
  ////////////////////////////////////////////////
  
  // 0.1 USB port for debugging
  USB.ON();
  USB.println(F("Welcome to Bin Checker"));
  delay(100);
  
  // 0.2 Sending init XBee message
  snprintf(pac,sizeof(pac),"Welcome to Bin Checker\n");
  sendXbee(pac);
  
  // 0.3 Turn ON xbee802
  xbee802.ON();

  // 0.4 Turn ON RTC
  RTC.ON(); 
  // Setting time [yy:mm:dd:dow:hh:mm:ss]
  // dow = day of the week
  // Sunday = 01, Monday = 02, Tuesday = 03 ...
  RTC.setTime("15:05:04:02:09:00:00");
  
  ////////////////////////////////////////////////
  // 1. Digital pins configuration
  ////////////////////////////////////////////////
  
  pinMode(ANALOG1,INPUT);  //LDR
  pinMode(DIGITAL1,OUTPUT);  //BUZZER
  
}


void loop() {

  ////////////////////////////////////////////////
  // 2. Checking LDR level
  ////////////////////////////////////////////////
  
  // 2.1 USB debugging
  USB.println(RTC.getTime());
  
  // 2.1 Checking bin level
  checkBin();
  delay(1000);

}

////////////////////////////////////////////////
// Check bin level function
////////////////////////////////////////////////

void checkBin(){

  // Turn ON 3V3 voltage
  PWR.setSensorPower(SENS_3V3,SENS_ON);
  delay(500);

  // Filter working hours excluding evenings and weekends
  if (RTC.hour > 8 && RTC.hour < 19 && RTC.day !=7 && RTC.day !=1){    

	// Take light measure  
    light = analogRead(ANALOG1);
    
    // USB debugging
    USB.print("light value: ");
    USB.println(light);
    
	// Sending data via XBee  
    snprintf(pac,sizeof(pac),"light value: %i\n",light);
    sendXbee(pac);
    
    // Light measure comparation
    if (light < lightThreshold){

      // USB debugging
      USB.println("Please empty your bin");
      
      // Sending data via XBee  
      snprintf(pac,sizeof(pac),"Please empty your bin\n");
      sendXbee(pac);

      //Buzzer only will sound once an hour
      if (RTC.minute == 00 && RTC.second == 00){
        digitalWrite(DIGITAL1,HIGH);
        delay(500);
        digitalWrite(DIGITAL1,LOW);
        delay(500);
        digitalWrite(DIGITAL1,HIGH);
        delay(500);
        digitalWrite(DIGITAL1,LOW);
      }

    }
    else{
		
      // USB debugging 
      USB.println("Your bin level is OK!");
      
      // Sending data via XBee   
      snprintf(pac,sizeof(pac),"Your bin level is OK!\n");
      sendXbee(pac);
    }

  }

  else{
	  
    // USB debugging	  
    USB.println("Out of the office");

    // Sending data via XBee    
    snprintf(pac,sizeof(pac),"Out of the office\n");
    sendXbee(pac);
  }

  // Turn OFF 3V3 voltage
  PWR.setSensorPower(SENS_3V3,SENS_OFF);	


}

////////////////////////////////////////////////
// Send XBee function
////////////////////////////////////////////////

void sendXbee(char* str){

  // Memory allocation
  packet=(packetXBee*) calloc(1,sizeof(packetXBee)); 
  
  // Choose transmission mode: UNICAST or BROADCAST
  packet->mode=BROADCAST; 
  
  // set destination XBee parameters to packet
  xbee802.setDestinationParams( packet, MAC_ADDRESS, str, MAC_TYPE);
  
  // send XBee packet
  xbee802.sendXBee(packet);
  
  // free variables
  free(packet);
  packet=NULL;
  
}