#! /bin/sh

cd $(dirname "$0")

GREP='/bin/egrep'
SCREEN='/usr/bin/screen'
SED='/bin/sed -E'
SU='/bin/su -s /bin/sh'
PERL='/usr/bin/env perl'

launch_screen()
{
    CMD=$2
    if [ -n "$3" ] && [ -f "$3" ]
    then
	TMP=`$SU -c 'mktemp' intradmin`
	$SU -c "ssh-agent" intradmin > "$TMP"
	$SU -c ". $TMP; ssh-add '$3'" intradmin
	CMD=". $TMP; ssh-add -l; echo; $CMD"
    fi

    $SU -c "$SCREEN -S '$1' -d -m bash -c '$CMD'" intradmin

    if [ -f "$TMP" ]
    then
	sleep 1
	/bin/rm "$TMP"
    fi
}

if [ -z "$1" ]
then
    ACTION="restart"
else
    ACTION="$1"
fi

if [ -z "$2" ]
then
    HOSTNAME=`/bin/hostname`
else
    HOSTNAME="$2"
fi

if [ "$ACTION" = "stop" ] || [ "$ACTION" = "restart" ]
then
    # Kill old liblersorf screen sessions
    $SU -c "$SCREEN -ls" intradmin | $GREP '[0-9]+\.lerdorf_[a-zA-Z0-9_-]+' |
    while read LINE
    do
	SNAME=`echo $LINE | $SED "s/^[^0-9]*([0-9]+\.[^ \t]+).*$/\1/"`
	$SU -c "$SCREEN -S \"$SNAME\" -X kill" intradmin
    done
fi


if [ "$ACTION" = "start" ] || [ "$ACTION" = "restart" ]
then
    case $HOSTNAME in

	cpp)
	    launch_screen "lerdorf_process_ldap_sync_ssh_keys_forge" "while true; do $PERL ~/liblerdorf/process/ldap/sync_ssh_keys_forge.pl; done" ~intradmin/.ssh/git
	    ;;
	
	hamano)
	    launch_screen "lerdorf_process_ldap_sync_ssh_keys_git" "while true; do $PERL ~/liblerdorf/process/ldap/sync_ssh_keys_git.pl; done" ~intradmin/.ssh/git
	    ;;
	
	moore)
	    launch_screen "lerdorf_process_ldap_check_ssh_key" "while true; do $PERL ~/liblerdorf/process/ldap/check_ssh_key.pl; done"
	    launch_screen "lerdorf_process_ldap_sync_ssh_keys" "while true; do $PERL ~/liblerdorf/process/ldap/sync_ssh_keys.pl; done"
	    launch_screen "lerdorf_process_ldap_update_group" "while true; do $PERL ~/liblerdorf/process/ldap/update_group.pl; done"
	    launch_screen "lerdorf_process_ldap_update_user" "while true; do $PERL ~/liblerdorf/process/ldap/update_user.pl; done"
	    
	    #launch_screen "lerdorf_process_files_intradata_get" "while true; do $PERL ~/liblerdorf/process/files/intradata_get.pl; done"
	    ;;
	
	noyce)
	    launch_screen "lerdorf_process_files_intradata_get" "while true; do $PERL ~/liblerdorf/process/files/intradata_get.pl; done"
	    ;;
	
	*)
	    echo "No process to launch for $HOSTNAME" >&2
	    exit 1
	    ;;
    esac
fi