#!/bin/bash

function check_not_installed()
{
  c=0
  config=$(vtysh -c "show run")
  for route_map_name in $(echo "$config" | sed -ne 's/  neighbor \S* route-map \(\S*\) out/\1/p');
  do
    echo "$config" | egrep -q "^route-map $route_map_name permit 20$"
    c=$((c+$?))
    echo "$config" | egrep -q "^route-map $route_map_name deny 30$"
    c=$((c+$?))
  done
  return $c
}

check_not_installed
not_installed=$?
if [[ $not_installed -ne 0 ]];
then
  TSA_FILE=$(mktemp)
  for route_map_name in $(echo "$config" | sed -ne 's/  neighbor \S* route-map \(\S*\) out/\1/p');
  do
    case "$route_map_name" in
      *V4*)
        ip_version=V4
        ip_protocol=ip
      ;;
      *V6*)
        ip_version=V6
        ip_protocol=ipv6
      ;;
      *)
        continue
      ;;
    esac
    sonic-cfggen -d -a "{\"route_map_name\":\"$route_map_name\", \"ip_version\": \"$ip_version\", \"ip_protocol\": \"$ip_protocol\"}" -y /etc/sonic/constants.yml -t /usr/share/sonic/templates/bgpd/tsa/bgpd.tsa.isolate.conf.j2 > "$TSA_FILE"
    vtysh -f "$TSA_FILE"
    rm -f "$TSA_FILE"
  done
  echo "System Mode: Normal -> Maintenance"
else
  echo "System is already in Maintenance mode"
fi