#!/bin/bash

# read SONiC immutable variables
[ -f /etc/sonic/sonic-environment ] && . /etc/sonic/sonic-environment

if [ ! -f /etc/sonic/updategraph.conf ]; then
    echo "No updategraph.conf found, generating a default one."
    echo "enabled=false" >/etc/sonic/updategraph.conf
fi

. /etc/sonic/updategraph.conf

if [ "$enabled" = "reload_only" ]; then
    echo "reload_only will not be supported in file updategraph.conf"
    exit 1
fi

if [ "$enabled" != "true" ]; then
    echo "Disabled in updategraph.conf. Skipping graph update."
    exit 0
fi

# If ZTP package is available and enabled, use ZTP to download and load the graph.
if [ -e /usr/bin/ztp ] && [ "$(ztp status -c)" != "0:DISABLED" ]; then
    echo "ZTP is available and enabled. Skipping graph update."
    exit 0
fi

# "`cat /tmp/dhcp_graph_url`" is always "N/A"
echo "No graph_url option in DHCP response. Skipping graph update and generating an empty configuration."
PLATFORM=${PLATFORM:-`sonic-cfggen -H -v DEVICE_METADATA.localhost.platform`}
if [ -f /etc/sonic/minigraph.xml ]; then
    sonic-cfggen -H -m /etc/sonic/minigraph.xml --preset empty > /tmp/device_meta.json
else
    PRESET=(`head -n 1 /usr/share/sonic/device/$PLATFORM/default_sku`)
    sonic-cfggen -H -k ${PRESET[0]} --preset empty > /tmp/device_meta.json
fi
if [ -f /etc/sonic/init_cfg.json ]; then
    sonic-cfggen -j /tmp/device_meta.json -j /etc/sonic/init_cfg.json --print-data > /etc/sonic/config_db.json
else
    cp -f /tmp/device_meta.json /etc/sonic/config_db.json
fi
sonic-db-cli CONFIG_DB FLUSHDB
sonic-cfggen -j /etc/sonic/config_db.json --write-to-db
sonic-db-cli CONFIG_DB SET "CONFIG_DB_INITIALIZED" "1"
if [ "$dhcp_as_static" = "true" ]; then
    sed -i "/enabled=/d" /etc/sonic/updategraph.conf
    echo "enabled=false" >> /etc/sonic/updategraph.conf
fi
exit 0