/* ===== pfod Command for Menu_1 ====
pfodApp msg {.} --> {,<bg n><b><+5>~BBC microbit`0~V2|A<+4>`0~Output 8 is ~~Low\High~|B<+3>`0~Pin 2 PWM ~%`255`0~100~0~|C<b><+5>~Plot A0}
 */
// BBC Microbit programmed via Arduino IDE
// Using "Nordic Semiconductor nRF5 Boards" by Sandeep Mistry

/* Code generated by pfodDesignerV3 V3.0.3761
 */
/*
 * (c)2014-2020 Forward Computing and Control Pty. Ltd.
 * NSW Australia, www.forward.com.au
 * This code is not warranted to be fit for any purpose. You may only use it at your own risk.
 * This generated code may be freely used for both private and commercial use
 * provided this copyright is maintained.
 */

#include <Adafruit_Microbit.h>
Adafruit_Microbit microbit;
// download the libraries from http://www.forward.com.au/pfod/pfodParserLibraries/index.html
// pfodParser.zip V3.35+ contains pfodParser, pfodSecurity, pfodDelay, pfodBLEBufferedSerial, pfodSMS and pfodRadio
#include <pfodParser.h>

#include <pfodBLEBufferedSerial.h>
int swap01(int); // method prototype for slider end swaps
float getPlotVarScaling(long varMax, long varMin, float displayMax, float displayMin);

pfodParser parser("V3"); // create a parser to handle the pfod messages
pfodBLEBufferedSerial bleBufferedSerial;
const char* deviceName = "pfod microbit"; // 30 chars or less in name


// give the board pins names, if you change the pin number here you will change the pin controlled
int cmd_A_var; // name the variable for 'Output 8 is'  0=Low 1=High 
const int cmd_A_pin = 8; // name the output pin for 'Output 8 is'
int cmd_B_var; // name the variable for 'Pin 2 PWM'
const int cmd_B_pin = 2; // name the output pin for 'Pin 2 PWM'

unsigned long plot_mSOffset = 0; // set by {@} response
bool clearPlot = false; // set by the {@} response code

// plotting data variables
int plot_1_varMin = 0;
int plot_1_var = plot_1_varMin;
float plot_1_scaling;
float plot_1_varDisplayMin = 0.0;
// plot 2 is hidden
// plot 3 is hidden
pfodDelay plotDataTimer; // plot data timer
unsigned long PLOT_DATA_INTERVAL = 1000;// mS == 1 sec, edit this to change the plot data interval

// the setup routine runs once on reset:
void setup() {
  cmd_A_var = 0;
  pinMode(cmd_A_pin, OUTPUT); // output for 'Output 8 is' is initially LOW,
  digitalWrite(cmd_A_pin,cmd_A_var); // set output
   cmd_B_var = 0;
  analogWrite(cmd_B_pin,cmd_B_var); // set output

  // set up for Chart 
  // set pinMode for plot pins
  // calculate the plot vars scaling here once to reduce computation
  plot_1_scaling = getPlotVarScaling(1023,plot_1_varMin,3.3,plot_1_varDisplayMin);
microbit.BTLESerial.setLocalName(deviceName);
microbit.BTLESerial.begin();

parser.connect(bleBufferedSerial.connect(&(microbit.BTLESerial))); // connect the parser to the i/o stream 

// Start LED matrix driver after radio (required) 
microbit.begin();

  plotDataTimer.start(PLOT_DATA_INTERVAL); // start plot timer

  // <<<<<<<<< Your extra setup code goes here
}

// the loop routine runs over and over again forever:
void loop() {
  microbit.BTLESerial.poll();  // check BLE

  uint8_t cmd = parser.parse(); // parse incoming data from connection
  // parser returns non-zero when a pfod command is fully parsed
  if (cmd != 0) { // have parsed a complete msg { to }
    uint8_t* pfodFirstArg = parser.getFirstArg(); // may point to \0 if no arguments in this msg.
    pfod_MAYBE_UNUSED(pfodFirstArg); // may not be used, just suppress warning
    long pfodLongRtn; // used for parsing long return arguments, if any
    pfod_MAYBE_UNUSED(pfodLongRtn); // may not be used, just suppress warning
    if ('.' == cmd) {
      // pfodApp has connected and sent {.} , it is asking for the main menu
      if (!parser.isRefresh()) {
        sendMainMenu(); // send back the menu designed
      } else {
        sendMainMenuUpdate(); // menu is cached just send update
      }

      // handle {@} request
    } else if('@'==cmd) { // pfodApp requested 'current' time
      plot_mSOffset = millis(); // capture current millis as offset rawdata timestamps
      clearPlot = true; // clear plot on reconnect as have new plot_mSOffset
      parser.print(F("{@`0}")); // return `0 as 'current' raw data milliseconds
    

    // now handle commands returned from button/sliders
    } else if('A'==cmd) { // user moved slider -- 'Output 8 is'
      // in the main Menu of Menu_1 
      // set output based on slider 0=Low 1=High 
      parser.parseLong(pfodFirstArg,&pfodLongRtn); // parse first arg as a long
      cmd_A_var = (int)pfodLongRtn; // set variable
      digitalWrite(cmd_A_pin,cmd_A_var); // set output
      sendMainMenuUpdate(); // always send back a pfod msg otherwise pfodApp will disconnect.

    } else if('B'==cmd) { // user moved PWM slider -- 'Pin 2 PWM'
      // in the main Menu of Menu_1 
      parser.parseLong(pfodFirstArg,&pfodLongRtn); // parse first arg as a long
      cmd_B_var = (int)pfodLongRtn; // set variable
      analogWrite(cmd_B_pin,cmd_B_var); // set PWM output
      sendMainMenuUpdate(); // always send back a pfod msg otherwise pfodApp will disconnect.

    } else if('C'==cmd) { // user pressed -- 'Plot A0'
      // in the main Menu of Menu_1 
      // return plotting msg.
      parser.print(F("{=microbit A0~mm:ss"));
      if (clearPlot) {
        clearPlot = false;
        parser.print(F("~C"));
      }
      parser.print(F("|time (mm:ss)|A0  (volts)~3.3~0.0~A0 Volts||}"));

    } else if ('!' == cmd) {
      // CloseConnection command
      closeConnection(parser.getPfodAppStream());
    } else {
      // unknown command
      parser.print(F("{}")); // always send back a pfod msg otherwise pfodApp will disconnect.
    }
  }
  sendData();
  //  <<<<<<<<<<<  Your other loop() code goes here 
  
}
void closeConnection(Stream *io) {
  // nothing special here
}

void sendData() {
  if (plotDataTimer.justFinished()) {
    plotDataTimer.repeat(); // restart plot data timer, without drift
    // assign values to plot variables from your loop variables or read ADC inputs
    plot_1_var = analogRead(0); // read input to plot 
    // plot_2_var plot Hidden so no data assigned here
    // plot_3_var plot Hidden so no data assigned here
    // send plot data in CSV format
    parser.print(millis()-plot_mSOffset);// time in milliseconds
    parser.print(','); parser.print(((float)(plot_1_var-plot_1_varMin)) * plot_1_scaling + plot_1_varDisplayMin);
    parser.print(','); // Plot 2 is hidden. No data sent.
    parser.print(','); // Plot 3 is hidden. No data sent.
    parser.println(); // end of CSV data record
  }
}


float getPlotVarScaling(long varMax, long varMin, float displayMax, float displayMin) {
  long varRange = varMax - varMin;
  if (varRange == 0) { varRange = 1; } // prevent divide by zero
  return (displayMax - displayMin)/((float)varRange);
}


void sendMainMenu() {
  // !! Remember to change the parser version string
  //    every time you edit this method
  parser.print(F("{,"));  // start a Menu screen pfod message
  // send menu background, format, prompt, refresh and version
  parser.print(F("<bg n><b><+5>~BBC microbit`0"));
  parser.sendVersion(); // send the menu version 
  // send menu items
  parser.print(F("|A<+4>"));
  parser.print('`');
  parser.print(cmd_A_var); // output the current state 0 Low or 1 High 
  parser.print(F("~Output 8 is ~~Low\\High~"));
  // Note the \\ inside the "'s to send \ ... 
  parser.print(F("|B<+3>"));
  parser.print('`');
  parser.print(cmd_B_var); // output the current PWM setting
  parser.print(F("~Pin 2 PWM ~%`255`0~100~0~"));
  parser.print(F("|C<b><+5>"));
  parser.print(F("~Plot A0"));
  parser.print(F("}"));  // close pfod message
}

void sendMainMenuUpdate() {
  parser.print(F("{;"));  // start an Update Menu pfod message
  // send menu items
  parser.print(F("|A"));
  parser.print('`');
  parser.print(cmd_A_var); // output the current state 0 Low or 1 High 
  parser.print(F("|B"));
  parser.print('`');
  parser.print(cmd_B_var); // output the current PWM setting
  parser.print(F("|C"));
  parser.print(F("}"));  // close pfod message
  // ============ end of menu ===========
}

int swap01(int in) {
  return (in==0)?1:0;
}
// ============= end generated code =========