Simple IVR Simulator for testing out user experience (Works on OSX)

simple-ivr-simulator.sh

VOICE="Vicki"
BALANCE="100"

function voice_prompt () {
  echo "  SPEAKING: $1"
  say -v "$VOICE" "$1"
}

function get_user_keypress () {
  KEY=""
  echo -n "Press a Key: "
  read KEY
  export KEY
}

echo "Pretending I'm an IVR (Interactive Voice Response System)..."

function say_top_menu () {
  voice_prompt "Press 1 to hear your current balance."
  voice_prompt "Press 2 to make a payment."
  voice_prompt "Press star to hear this menu again."
  voice_prompt "Press 0 to disconnect."
}

voice_prompt "Welcome to the IVR Simulator."
CONTINUE="Y"
while [ "$CONTINUE" == "Y" ] ; do
  say_top_menu
  get_user_keypress

  case "$KEY" in
    1)
    voice_prompt "Your current balance is: $BALANCE dollars"
    ;;

    2)
    voice_prompt "Please enter the amount you'd like to pay."
    get_user_keypress
    AMT=$KEY
    BALANCE=$(($BALANCE - $AMT))
    voice_prompt "Thank you, $AMT dollars has been credited to your account."
    ;;
    "0")
      CONTINUE=N
      voice_prompt "Thank you.  Goodbye."
      exit 0
    ;;
    *)
     # nothing
    ;;
  esac
done