class Opal::CliRunners::AppleScript

def initialize(output)
  unless system('which osalang > /dev/null')
    raise MissingJavaScriptSupport, 'JavaScript Automation is only supported by OS X Yosemite and above.'
  end
  @output ||= output
end

def puts(*args)
  output.puts(*args)
end

def run(code, argv)
  require 'tempfile'
  tempfile = Tempfile.new('opal-applescript-runner-')
  # tempfile = File.new('opal-applescript-runner.js', 'w') # for debugging
  tempfile.write code
  tempfile.close
  successful = system_with_output('osascript', '-l', 'JavaScript', tempfile.path , *argv)
rescue Errno::ENOENT
  raise MissingAppleScript, 'AppleScript is only available on Mac OS X.'
end

def system_with_output(env, *cmd)
  if (io_output = IO.try_convert(output))
    system(env,*cmd)
    @exit_status = $?.exitstatus
    return
  end
  if RUBY_PLATFORM == 'java'
    # JRuby has issues in dealing with subprocesses (at least up to 1.7.15)
    # @headius told me it's mostly fixed on master, but while we wait for it
    # to ship here's a tempfile workaround.
    require 'tempfile'
    require 'shellwords'
    tempfile = Tempfile.new('opal-applescript-output')
    system(env,cmd.shelljoin+" > #{tempfile.path}")
    @exit_status = $?.exitstatus
    captured_output = File.read tempfile.path
    tempfile.close
  else
    require 'open3'
    captured_output, status = Open3.capture2(env,*cmd)
    @exit_status = status.exitstatus
  end
  output.write captured_output
end