unixorn/tumult.plugin.zsh

#!/usr/bin/env bash
#
# Display a dialog and return the user's input
#
# Copyright 2021, Joe Block <jpb@unixorn.net>
# License: Apache 2

set -o pipefail
if [[ -n "$DEBUG" ]]; then
  set -x
fi

function debug() {
  if [[ -n "$DEBUG" ]]; then
    echo "$@"
  fi
}

function fail() {
  printf '%s\n' "$1" >&2  ## Send message to stderr. Exclude >&2 if you don't want it that way.
  exit "${2-1}"  ## Return a code specified by $2 or 1 by default.
}

function has() {
  # Check if a command is in $PATH
  which "$@" > /dev/null 2>&1
}

consoleUser() {
    echo "show State:/Users/ConsoleUser" | scutil | awk '/Name :/ && ! /loginwindow/ { print $3 }'
}

check-deps() {
  if [[ "$(uname -s)" != 'Darwin' ]]; then
    echo 'Sorry, this script only works on macOS'
    exit 1
  fi

  if ! has launchctl; then
    fail "Can't find launchctl in your PATH"
  fi

  if ! has osascript; then
    fail "Can't find osascript in your PATH"
  fi
}

ask-dialog() { # $1: message $2: default text
    message=${1:-"Message"}
    defaultvalue=${2:-"default value"}
    user=$(consoleUser)
  if [[ "$user" != "" ]]; then
    uid=$(id -u "$user")

    launchctl asuser "$uid" /usr/bin/osascript <<-EndOfScript
            text returned of ¬
                (display dialog "$message" ¬
                    default answer "$defaultvalue" ¬
                    buttons {"OK"} ¬
                    default button "OK")
            EndOfScript
  else
    exit 1
  fi
}

check-deps
ask-dialog "$@"