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

# Save trace setting
MY_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 {
    :
}

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

    # Ryu configuration
    RYU_CONF_CONTENTS=${RYU_CONF_CONTENTS:-"[DEFAULT]
app_lists=$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
neutron_url=http://$Q_HOST:$Q_PORT
neutron_admin_username=$Q_ADMIN_USERNAME
neutron_admin_password=$SERVICE_PASSWORD
neutron_admin_tenant_name=$SERVICE_TENANT_NAME
neutron_admin_auth_url=$KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:$KEYSTONE_AUTH_PORT/v2.0
neutron_auth_strategy=$Q_AUTH_STRATEGY
neutron_controller_addr=tcp:$RYU_OFP_HOST:$RYU_OFP_PORT
"}
    echo "${RYU_CONF_CONTENTS}" > $RYU_CONF
}

# install_ryu can be called multiple times as neutron_pluing/ryu may call
# this function for neutron-ryu-agent
# Make this function idempotent and avoid cloning same repo many times
# with RECLONE=yes
_RYU_INSTALLED=${_RYU_INSTALLED:-False}
function install_ryu {
    if [[ "$_RYU_INSTALLED" == "False" ]]; then
        git_clone $RYU_REPO $RYU_DIR $RYU_BRANCH
        export PYTHONPATH=$RYU_DIR:$PYTHONPATH
        _RYU_INSTALLED=True
    fi
}

function start_ryu {
    screen_it ryu "cd $RYU_DIR && $RYU_DIR/bin/ryu-manager --config-file $RYU_CONF"
}

function stop_ryu {
    :
}

function check_ryu {
    :
}

# Restore xtrace
$MY_XTRACE