#! /bin/sh
# Copyright 2008-2009 litl, LLC.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.

SCRIPTNAME=$0
START_SYSTEM_BUS=
START_SESSION_BUS=

done=0

while [ "$done" != 1 ]; do
    case $1 in
        --system )
            START_SYSTEM_BUS=1
            ;;
        --session)
            START_SESSION_BUS=1
            ;;
        * )
            WRAPPED_SCRIPT=$1
            done=1
            ;;
    esac
    shift
done

die()
{
    if ! test -z "$DBUS_SESSION_BUS_PID" ; then
        echo "killing message bus "$DBUS_SESSION_BUS_PID >&2
        kill -9 $DBUS_SESSION_BUS_PID
    fi

    if ! test -z "$DBUS_SYSTEM_BUS_PID" ; then
        echo "killing message bus "$DBUS_SYSTEM_BUS_PID >&2
        kill -9 $DBUS_SYSTEM_BUS_PID
    fi

    echo $SCRIPTNAME: $* >&2
    exit 1
}

## convenient to be able to ctrl+C without leaking the message bus process
trap 'die "Received terminal signal"' INT TERM HUP

if test -z "$TOP_SRCDIR" ; then
    die "Must set TOP_SRCDIR"
fi

if test -z "$BUILDDIR" ; then
    die "Must set BUILDDIR"
fi

RANDOM=`dbus-uuidgen`

## this has to be set BEFORE we start session bus,
## or stuff the session bus starts won't get it
if ! test -z "$START_SYSTEM_BUS" ; then
    DBUS_SYSTEM_BUS_ADDRESS="unix:abstract=/tmp/dbus-$USER-$$-$RANDOM-system"
    export DBUS_SYSTEM_BUS_ADDRESS
fi

STDERR_LOGFILE="$BUILDDIR"/stderr.log
if test x"$XDG_DATA_HOME" != x ; then
    mkdir -p "$XDG_DATA_HOME"/logs || exit 1
    STDERR_LOGFILE="$XDG_DATA_HOME"/logs/stderr.log
fi
/bin/rm -f "$STDERR_LOGFILE"
SYSTEM_MONITOR_LOGFILE=`echo "$STDERR_LOGFILE" | sed -e s/stderr.log/dbus-system.log/g`

if ! test -z "$START_SESSION_BUS" ; then
    CONFIG_FILE="$TOP_SRCDIR"/test/test-bus.conf

    unset DBUS_SESSION_BUS_ADDRESS
    unset DBUS_SESSION_BUS_PID

    echo "Running dbus-launch --config-file=$CONFIG_FILE" >&2

    eval `dbus-launch --sh-syntax --config-file=$CONFIG_FILE 2>"$STDERR_LOGFILE"`

    if test -z "$DBUS_SESSION_BUS_PID" ; then
        die "Failed to launch message bus for test script to run"
    fi

    echo "Started bus pid $DBUS_SESSION_BUS_PID at $DBUS_SESSION_BUS_ADDRESS" >&2
fi

if ! test -z "$START_SYSTEM_BUS" ; then
    SYSTEM_CONFIG_FILE="$TOP_SRCDIR"/test/test-bus.conf

    echo "Running dbus-daemon --fork --print-pid --config-file=$SYSTEM_CONFIG_FILE" >&2

    unset DBUS_SYSTEM_BUS_PID
    DBUS_SYSTEM_BUS_PID=`dbus-daemon --fork --print-pid --config-file=$SYSTEM_CONFIG_FILE 2>>"$STDERR_LOGFILE"`

    if test -z "$DBUS_SYSTEM_BUS_PID" ; then
        die "Failed to launch system bus for test script to run"
    fi

    echo "Started bus pid $DBUS_SYSTEM_BUS_PID at $DBUS_SYSTEM_BUS_ADDRESS" >&2

    dbus-monitor --system "type='method_call'" "type='signal'" "type='method_return'" "type='error'" > "$SYSTEM_MONITOR_LOGFILE" 2>&1 &

fi

# Execute wrapped script
echo "Running with dbus: $WRAPPED_SCRIPT $@ with stderr to $STDERR_LOGFILE" >&2
$WRAPPED_SCRIPT "$@" 2>>"$STDERR_LOGFILE" || die "script \"$WRAPPED_SCRIPT\" failed"

if ! test -z "$DBUS_SESSION_BUS_PID" ; then
    kill -TERM $DBUS_SESSION_BUS_PID || die "Message bus vanished! should not have happened" && echo "Killed daemon $DBUS_SESSION_BUS_PID" >&2
fi

if ! test -z "$DBUS_SYSTEM_BUS_PID" ; then
    kill -TERM $DBUS_SYSTEM_BUS_PID || die "Message bus vanished! should not have happened" && echo "Killed daemon $DBUS_SYSTEM_BUS_PID" >&2
fi

sleep 2

## be sure it really died
if ! test -z "$DBUS_SESSION_BUS_PID" ; then
    kill -9 $DBUS_SESSION_BUS_PID > /dev/null 2>&1 || true
fi

if ! test -z "$DBUS_SYSTEM_BUS_PID" ; then
    kill -9 $DBUS_SYSTEM_BUS_PID > /dev/null 2>&1 || true
fi

exit 0