#!/bin/sh

set -e

migrate_ipam_db() {
  LEGACY_IPAM_DB_FILE="/etc/pve/priv/ipam.db"
  IPAM_DB_FILE="/etc/pve/sdn/pve-ipam-state.json"

  if test -f "$LEGACY_IPAM_DB_FILE" && test ! -f "$IPAM_DB_FILE"; then
    echo "copying over existing legacy IPAM state file to new path..."
    cp $LEGACY_IPAM_DB_FILE $IPAM_DB_FILE
  fi
}

migrate_mac_cache() {
  LEGACY_MAC_DB_FILE="/etc/pve/priv/macs.db"
  MAC_DB_FILE="/etc/pve/sdn/mac-cache.json"

  if test -f "$LEGACY_MAC_DB_FILE" && test ! -f "$MAC_DB_FILE"; then
    echo "copying over existing legacy IPAM MAC-map cache file to new path..."
    cp $LEGACY_MAC_DB_FILE $MAC_DB_FILE
  fi
}

case "$1" in
  configure)
    # TODO: remove with PVE 9+
    if dpkg --compare-versions "$2" 'lt' '0.9.9'; then
      migrate_ipam_db
      migrate_mac_cache
    fi
  ;;
esac

exit 0