#!/usr/bin/env bash
MAILTO=${MAILTO:-markus@nordu.net}
CROND_FILE=/etc/cron.d/cf-replace
SSH_KEYS_PATH=/usr/local/bin/ssh-keys.sh
SSH_URL="https://code.nordu.net/?p=cf-replace.git;a=blob_plain;f=ssh-keys.sh;hb=HEAD"
CROND_URL="https://code.nordu.net/?p=cf-replace.git;a=blob_plain;f=cf-replace;hb=HEAD"

if ! grep -q -i ubuntu /etc/lsb-release; then
  echo "Not installing, this is not an Ubuntu machine"
  exit 1
fi
if [ -d /var/cache/cosmos/ ]; then
  echo "Not installing, machine is running cosmos"
  exit 1
fi  

if ! which ldapsearch >> /dev/null; then
  if ! apt-get install -y -qq ldap-utils >> /dev/null; then
    echo "Failed to install ldap-utils"
    exit 1
  fi
  if ! ldapsearch -o nettimeout=2 -o ldif-wrap=no -LLL -x -H "ldaps://ldap.nordu.net" -b "ou=people,dc=nordu,dc=net" "(&(employeeType=employee)(memberof=cn=ndn-sysadmin,ou=groups,dc=nordu,dc=net)(sshPublicKey=*)(uid=markus))" uid >> /dev/null; then
    echo "Failed to perform ldapsearch"
    exit 1
  fi
fi

if ! curl -s --show-error "$SSH_URL" > "$SSH_KEYS_PATH"; then
  echo "Failed to get ssh-keys.sh file"
  exit 1
fi

chmod +x "$SSH_KEYS_PATH"

if ! curl -s --show-error "$CROND_URL" > "$CROND_FILE"; then
  echo "Failed to get cf-replace cron file" 
  test -f "$CROND_FILE" && rm "$CROND_FILE"
  exit 1
fi
sed -i -e "/MAILTO/ s/markus@nordu.net/$MAILTO/" "$CROND_FILE"
echo "cf-replace has been installed to $CROND_FILE"