#! /bin/sh

### BEGIN INIT INFO
# Provides:          fastpanel2-apps
# Required-Start:    $remote_fs $network
# Required-Stop:     $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts fastpanel2-apps
# Description:       starts the PHP FastCGI Process Manager daemon
### END INIT INFO

. /lib/init/vars.sh

. /lib/lsb/init-functions

prefix=/opt/fphp
exec_prefix=${prefix}

php_fpm_BIN=${exec_prefix}/sbin/php-fpm
php_fpm_CONF=${prefix}/etc/php-fpm.conf
php_fpm_PID=/var/run/fastpanel2-applications.pid


php_opts="--fpm-config $php_fpm_CONF --pid $php_fpm_PID"


wait_for_pid () {
    try=0

    while test $try -lt 5 ; do

        case "$1" in
            'created')
            if [ -f "$2" ] ; then
                try=''
                break
            fi
            ;;

            'removed')
            if [ ! -f "$2" ] ; then
                try=''
                break
            fi
            ;;
        esac

        echo -n .
        try=`expr $try + 1`
        sleep 1

    done

}

case "$1" in
    start)
        if [ "$(find /opt/fphp/etc/php-fpm.d/ -name '*.conf' -type f |wc -l)" -eq "0" ]; then
            exit 0
        fi

        echo -n "Starting php-fpm "

        $php_fpm_BIN --daemonize $php_opts

        if [ "$?" != 0 ] ; then
            echo " failed"
            exit 1
        fi

        wait_for_pid created $php_fpm_PID

        if [ -n "$try" ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
    ;;

    stop)
        echo -n "Gracefully shutting down php-fpm "

        if [ ! -r $php_fpm_PID ] ; then
            echo "warning, no pid file found - php-fpm is not running ?"
            exit 1
        fi

        kill -QUIT `cat $php_fpm_PID`

        wait_for_pid removed $php_fpm_PID

        if [ -n "$try" ] ; then
            echo " failed. Use force-quit"
            exit 1
        else
            echo " done"
        fi
    ;;

    force-quit)
        echo -n "Terminating php-fpm "

        if [ ! -r $php_fpm_PID ] ; then
            echo "warning, no pid file found - php-fpm is not running ?"
            exit 1
        fi

        kill -TERM `cat $php_fpm_PID`

        wait_for_pid removed $php_fpm_PID

        if [ -n "$try" ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
    ;;

    restart)
        $0 stop
        $0 start
    ;;

    reload)

        echo -n "Reload service php-fpm "

        if [ ! -r $php_fpm_PID ] ; then
            echo "warning, no pid file found - php-fpm is not running ?"
            exit 1
        fi

        kill -USR2 `cat $php_fpm_PID`

        echo " done"
    ;;

    *)
        echo "Usage: $0 {start|stop|force-quit|restart|reload}"
        exit 1
    ;;

esac