/*******************************************************************/
/*
  Industrial Shield Irrigation Controller
  Code by: Alan Madorin
  
  Industrial Shield library: http://apps.industrialshields.com/main/arduino/boards/package_industrialshields_index.json 
  Set board to: "Ardbox Family"
  Set model to: "Ardbox Relay"
*/

/***************************  Pinout  ******************************/
// OUTPUTS
#define Relay_1  10  //R1_0
#define Relay_2   9  //R2_0
#define Relay_3   6  //R3_0
#define Relay_4   5  //R4_0
#define Relay_5   3  //R5_0
#define Relay_6   7  //R6_0
#define Relay_7   0  //R7_0
#define Relay_8   1  //R8_0

//INPUTS
#define Input_0   2  //I.0.0
#define Input_1  12  //I.0.1
#define Input_2   4  //I.0.2
#define Input_3   8  //I.0.3
#define Input_4  A0  //I.0.4
#define Input_5  A1  //I.0.5
#define Input_6  A2  //I.0.6
#define Input_7  A3  //I.0.7
#define Input_8  A4  //I.0.8
#define Input_9  A5  //I.0.9


/*************************   Libraries   ***************************/
#include <ArduinoJson.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial(14, 15); // RX (MISO), TX (SCK)


/*************************   Variables   ***************************/
bool relay1 = false;
bool relay2 = false;
bool relay3 = false;
bool relay4 = false;
bool relay5 = false;
bool relay6 = false;
bool relay7 = false;
bool relay8 = false;


/****************************  Setup  ******************************/
void setup() {
  Serial.begin(9600);
  //mySerial.begin(9600);
  
  // Setup Output Pins
  pinMode(Relay_1, OUTPUT);
  pinMode(Relay_2, OUTPUT);
  pinMode(Relay_3, OUTPUT);
  pinMode(Relay_4, OUTPUT);
  pinMode(Relay_5, OUTPUT);
  pinMode(Relay_6, OUTPUT);
  pinMode(Relay_7, OUTPUT);
  pinMode(Relay_8, OUTPUT);

  // Setup Input Pins
  pinMode(Input_0, INPUT);
  pinMode(Input_1, INPUT);
  pinMode(Input_2, INPUT);
  pinMode(Input_3, INPUT);
  pinMode(Input_4, INPUT);
  pinMode(Input_5, INPUT);
  pinMode(Input_6, INPUT);
  pinMode(Input_7, INPUT);
  pinMode(Input_8, INPUT);
  pinMode(Input_9, INPUT);

  sendJSON();
}


/*****************************  Loop  ******************************/
void loop() {
  checkSerial();
}


/****************************  Serial  *****************************/
void checkSerial() {
    if (Serial.available()) {
    // Allocate the JSON document
    StaticJsonDocument<128> doc;

    // Read the JSON document from the "link" serial port
    DeserializationError err = deserializeJson(doc, Serial);

    if (err == DeserializationError::Ok) {
      // (we must use as<T>() to resolve the ambiguity)  .as<bool>()
      relay1 = doc["R1"] | relay1;
      relay2 = doc["R2"] | relay2;
      relay3 = doc["R3"] | relay3;
      relay4 = doc["R4"] | relay4;
      relay5 = doc["R5"] | relay5;
      relay6 = doc["R6"] | relay6;
      relay7 = doc["R7"] | relay7;
      relay8 = doc["R8"] | relay8;
      
      updateOutputs();
      sendJSON();
    } 
    else {
      // Print error to the "debug" serial port
      Serial.print("deserializeJson() returned ");
      Serial.println(err.c_str());
  
      // Flush all bytes in the "link" serial port buffer
      while (Serial.available() > 0) {
        Serial.read();
      }
    }
  }
}


/***************************  Outputs  *****************************/
void updateOutputs() {
  digitalWrite(Relay_1, relay1);
  digitalWrite(Relay_2, relay2);
  digitalWrite(Relay_3, relay3);
  digitalWrite(Relay_4, relay4);
  digitalWrite(Relay_5, relay5);
  digitalWrite(Relay_6, relay6);
  digitalWrite(Relay_7, relay7);
  digitalWrite(Relay_8, relay8);
}


/***************************  Response  ****************************/
void sendJSON() {
  // Create the JSON document
  StaticJsonDocument<128> doc;
  doc["R1"] = relay1;
  doc["R2"] = relay2;
  doc["R3"] = relay3;
  doc["R4"] = relay4;
  doc["R5"] = relay5;
  doc["R6"] = relay6;
  doc["R7"] = relay7;
  doc["R8"] = relay8;

  // Send the JSON document over the "link" serial port
  serializeJson(doc, Serial);
  Serial.println();
}