#!/bin/sh

# PROVIDE: syncthing_user
# REQUIRE: DAEMON nslcd
# KEYWORD: shutdown
#
# syncthing_user_enable=YES
# syncthing_user_instances="bob joe"
# syncthing_user_bob_port="22000"
# syncthing_user_joe_port="22001"

. /etc/rc.subr

name=syncthing_user
rcvar=syncthing_user_enable

load_rc_config $name

: ${syncthing_user_enable:='NO'}
: ${syncthing_user_socket_group:='www'}

syncthing_user_rundir=/var/run/syncthing
syncthing_user_confdir=/var/db/syncthing
syncthing_user_args='serve --no-browser --no-upgrade --no-default-folder --logflags=0 --logfile=-'
syncthing_config_template=/usr/local/etc/syncthing.template.xml

procname="/usr/local/bin/syncthing"
command="/usr/sbin/daemon"
start_precmd=syncthing_user_startprecmd
required_files="${syncthing_config_template}"

syncthing_user_startprecmd()
{
  [ -d "$syncthing_user_rundir"   ] || install -d -m 0755 "$syncthing_user_rundir"
  [ -d "$syncthing_user_irundir"  ] || install -d -m 2750 -o "$syncthing_user_user" -g "$syncthing_user_socket_group" "$syncthing_user_irundir"
  [ -d "$syncthing_user_iconfdir" ] || install -d -m 0750 -o "$syncthing_user_user" -g "$syncthing_user_user"         "$syncthing_user_iconfdir"

  if [ ! -f "${syncthing_user_iconfdir}/config.xml" ]; then
    su -m "$syncthing_user_user" -c "${procname} generate --home=${syncthing_user_iconfdir}"

    deviceid=$("$procname" serve --home="$syncthing_user_iconfdir" --device-id)
    fqdn=$(hostname -f)
    sed -E \
      -e "s|__DEVICEID__|${deviceid}|" \
      -e "s|__PORT__|${syncthing_user_port}|" \
      -e "s|__FQDN__|${fqdn}|" \
      -e "s|__SOCK__|${syncthing_user_irundir}/syncthing.sock|" \
      "$syncthing_config_template" > "${syncthing_user_iconfdir}/config.xml"
  fi
}

if [ -n "$syncthing_user_instances" ]; then
  _1=$1
  if [ $# -gt 1 ]; then
    shift
    syncthing_user_instances=$*
  fi

  rc=0
  for syncthing_user_user in $syncthing_user_instances; do
    syncthing_user_group=$syncthing_user_user
    syncthing_user_iconfdir="${syncthing_user_confdir}/${syncthing_user_user}"
    syncthing_user_irundir="${syncthing_user_rundir}/${syncthing_user_user}"
    unset syncthing_user_port
    eval "syncthing_user_port=\$syncthing_user_${syncthing_user_user}_port"

    if [ -z "${syncthing_user_port:-}" ]; then
      echo "syncthing_user_${syncthing_user_user}_port not defined in /etc/rc.conf - skipping" 1>&2
      continue
    fi

    pidfile="${syncthing_user_rundir}/${syncthing_user_user}/syncthing.pid"
    command_args="-cf -s info -l daemon -T syncthing-${syncthing_user_user} -p ${pidfile} -t syncthing-${syncthing_user_user} \
      ${procname} ${syncthing_user_args} --home=${syncthing_user_iconfdir} --gui-address=unix://${syncthing_user_irundir}/syncthing.sock"

    run_rc_command "$_1"
    if [ $? -ne 0 ]; then rc=1; fi

    unset _pidcmd _rc_restart_done
  done

  exit $rc
else
  echo 'No users defined. Set syncthing_user_instances in /etc/rc.conf.' 1>&2
  exit 1
fi