#include "Keyboard.h"
// OS parameters
typedef enum {
  LINUX,
  WINDOWS,
  MAC
} os_types;
// Change this to your operating system
const os_types OS = MAC;
// Pins
const int btn_pin = 2;
const int led_pin = 9;
// Constants
const int debounce_delay = 50;              // ms
// Globals
int btn_state = HIGH;
int btn_prev = HIGH;
unsigned long last_debounce_time = 0;
int os_ctrl;
int led_state = LOW;
void setup() {
  Serial.begin(57600); // opens serial port, sets data rate to 57600 bps
  // Set up LED and button pins
  pinMode(btn_pin, INPUT_PULLUP);  // Set the button as an input
  pinMode(led_pin, OUTPUT);
  digitalWrite(led_pin, led_state);
  // Begin keyboard
  Keyboard.begin();
  // Switch to correct control/command key
  switch(OS){
    case LINUX:
    case WINDOWS:
      os_ctrl = KEY_LEFT_CTRL;
      break;
    case MAC:
      os_ctrl = KEY_LEFT_GUI;
      break;
    default:
      os_ctrl = KEY_LEFT_CTRL;
      break;
  }
  // Get initial timestamp
  Serial.println("started");
}
void loop() {
  // Read current state of the button
  int btn_read = digitalRead(btn_pin);
  // Remember when the button changed states
  if ( btn_read != btn_prev ) {
    last_debounce_time = millis();
  }
  // Wait before checking the state of the button again
  if ( millis() > (last_debounce_time + debounce_delay) ) {
    if ( btn_read != btn_state ) {
      btn_state = btn_read;
      if ( btn_state == LOW ) {
        // Send cmd+shift+a
        Keyboard.press(KEY_LEFT_SHIFT);
        Keyboard.press(os_ctrl);
        Keyboard.press('a');
        delay(100);
        Keyboard.releaseAll();
        Serial.println("pressed");
        if (led_state == LOW) {
          led_state = HIGH;
        } else {
          led_state = LOW;
        }
        digitalWrite(led_pin, led_state);
      }
    }
  }
  // Remember the previous button position for next loop()
  btn_prev = btn_read;
  if (Serial.available() > 0) {
    String incomingString = Serial.readStringUntil('\n');
    if (incomingString == "muted") {
      led_state = LOW;
    } else if (incomingString == "unmuted") {
      led_state = HIGH;
    }
    digitalWrite(led_pin, led_state);
  }
}

set zoomStatus to "closed"
set muteStatus to "disabled"
tell application "System Events"
  if exists (window 1 of process "zoom.us") then
    set zoomStatus to "open"
    tell application process "zoom.us"
      if exists (menu bar item "Meeting" of menu bar 1) then
        set zoomStatus to "call"
        if exists (menu item "Mute audio" of menu 1 of menu bar item "Meeting" of menu bar 1) then
          set muteStatus to "unmuted"
        else
          set muteStatus to "muted"
        end if
      end if
    end tell
  end if
end tell
copy "{"mute":"" & (muteStatus as text) & "","status":"" & (zoomStatus as text) & ""}" to stdout

$ osascript get-zoom-status.scpt
{"mute":"muted","status":"call"}

const { exec } = require('child_process');
const SerialPort = require('serialport');
const Readline = require('@serialport/parser-readline');
const port = new SerialPort('/dev/tty.usbmodemHIDPC1', {
    baudRate: 57600
});
var checkStatus = function() {
    console.log('Checking status...');
    exec('osascript get-zoom-status.scpt', (error, stdout, stderr) => {
        if (error) {
            console.error(`exec error: ${error}`);
            return;
        }
        var status = JSON.parse(stdout);
        if (status.mute == 'unmuted') {
            port.write('unmuted');
        } else {
            port.write('muted');
        }
    });
}
const parser = port.pipe(new Readline({ delimiter: '\r\n' }))
parser.on('data', function (data) {
    if (data == "pressed") {
        console.log('Button pressed.');
        checkStatus();
    }
})
checkStatus();
setInterval(checkStatus, 30000);