# Ryu OpenFlow Controller
# -----------------------

# Save trace setting
XTRACE=$(set +o | grep xtrace)
set +o xtrace


RYU_DIR=$DEST/ryu
# Ryu API Host
RYU_API_HOST=${RYU_API_HOST:-127.0.0.1}
# Ryu API Port
RYU_API_PORT=${RYU_API_PORT:-8080}
# Ryu OFP Host
RYU_OFP_HOST=${RYU_OFP_HOST:-127.0.0.1}
# Ryu OFP Port
RYU_OFP_PORT=${RYU_OFP_PORT:-6633}
# Ryu Applications
RYU_APPS=${RYU_APPS:-ryu.app.simple_isolation,ryu.app.rest}

function configure_ryu() {
    setup_develop $RYU_DIR
}

function init_ryu() {
    RYU_CONF_DIR=/etc/ryu
    if [[ ! -d $RYU_CONF_DIR ]]; then
        sudo mkdir -p $RYU_CONF_DIR
    fi
    sudo chown `whoami` $RYU_CONF_DIR
    RYU_CONF=$RYU_CONF_DIR/ryu.conf
    sudo rm -rf $RYU_CONF

    cat <<EOF > $RYU_CONF
--app_lists=$RYU_APPS
--wsapi_host=$RYU_API_HOST
--wsapi_port=$RYU_API_PORT
--ofp_listen_host=$RYU_OFP_HOST
--ofp_tcp_listen_port=$RYU_OFP_PORT
EOF
}

function install_ryu() {
    git_clone $RYU_REPO $RYU_DIR $RYU_BRANCH
}

function is_ryu_required() {
    if is_service_enabled ryu || (is_service_enabled quantum && [[ "$Q_PLUGIN" = "ryu" ]]); then
        return 0
    fi
    return 1
}

function start_ryu() {
    screen_it ryu "cd $RYU_DIR && $RYU_DIR/bin/ryu-manager --flagfile $RYU_CONF"
}

function stop_ryu() {
    :
}

# Restore xtrace
$XTRACE