#!/bin/bash

# usage $0 [MAIL_HOST]
# setup things which involve being the primary host or not

source /usr/local/lib/err

pre="${0##*/}:"
m() { printf "$pre %s\n"  "$*"; "$@"; }
e() { printf "$pre %s\n"  "$*"; }
err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $0: $*" >&2; }


[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"

if [[ $1 ]]; then
  new_host=$1
  if [[ $new_host == localhost ]]; then
    mailhost_p=1
    new_host=$HOSTNAME
  else
    mailhost_p=0
  fi

  # https://www.robustperception.io/how-to-have-labels-for-machine-roles
  dir=/var/lib/prometheus/node-exporter
  if [[ -e $dir  ]]; then
    cat > $dir/mailhost.prom <<EOF
host_role{role="mailhost"} $mailhost_p
EOF
  fi

  m sed -ri "s/MAIL_HOST=.*/MAIL_HOST=$new_host/" /a/bin/bash_unpublished/source-state
fi
source /a/bin/bash_unpublished/source-state


if dpkg -s rss2email &>/dev/null; then
  if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
    # arbtt disabled for now
    #DISPLAY=:0 arbtt-capture --sample-rate=10 &
    m systemctl --now enable rss2email.timer
    # off is in mail-setup. no reason for this to be in the rss2email block.
    m systemctl --now enable btrbk.timer
  else
    m systemctl --now disable btrbk.timer

    m systemctl stop rss2email.service
    m systemctl --now disable rss2email.timer
    # arbtt disabled for now
    # for ((i=0; i<10; i++)); do
    #   killall arbtt-capture || break
    #   sleep 1
    #   if [[ $i == 9 ]]; then
    #     exit 1
    #   fi
    # done
  fi
fi

# todo: whats going on here? figure out if this should be removed.

# if dpkg -s radicale &>/dev/null; then
#   if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
#     m systemctl restart radicale
#     m systemctl enable radicale
#     if [[ -e /etc/logrotate.d/radicale.disabled ]]; then
#       m mv /etc/logrotate.d/radicale{.disabled,}
#     fi
#   else
#     m systemctl stop radicale
#     m systemctl disable radicale
#     # weekly logrotate tries to restart radicale even if it's a disabled service in flidas.
#     if [[ -e /etc/logrotate.d/radicale ]]; then
#       m mv /etc/logrotate.d/radicale{,.disabled}
#     fi
#   fi
# fi


# todo: this needs to be disabled earlier than primary-setup in switch-mail-host

# if dpkg -s profile-sync-daemon &>/dev/null; then
#   if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
#     m systemctl --user start psd
#     m systemctl --user enable psd
#   else
#     m systemctl --user stop psd
#     m systemctl --user disable psd
#   fi
# fi


m /a/exe/mail-setup
exit 0