#!/bin/sh
# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

usage () {
  cat >&2 <<EOF
$0: Convenience wrapper around dbus-send specialized for calling
cromo interfaces.

Usage:
  $0: [modem id] [command] [remaining arguments]

Examples:
  $0 Fictitious/0 Simple.GetStatus
    will get status from modem /org/chromium/ModemManager/Fictitious/0

  $0 Gobi/2 Gobi.SetCarrier string:'Ficticious Carrier'
    will set modem /org/chromium/ModemManager/Gobi/2 to use 'Fictitious Carrier'
EOF
}

log_and_execute () {
  echo >&2 Running "$@"
  "$@"
}

if [ -z "$1" -o -z "$2" ] ; then
  usage
  exit 1
fi

MODEM="$1"
COMMAND="$2"
shift 2

log_and_execute dbus-send --system --print-reply --fixed    \
          --dest=org.chromium.ModemManager                  \
          /org/chromium/ModemManager/"$MODEM"               \
          org.freedesktop.ModemManager.Modem."$COMMAND"     \
          "$@"