#!/bin/sh

cd $(dirname $0)/..
app_root=$(pwd)
sidekiq_pidfile="$app_root/tmp/pids/sidekiq.pid"
sidekiq_logfile="$app_root/log/sidekiq.log"
sidekiq_config="$app_root/config/sidekiq_queues.yml"
gitlab_user=$(ls -l config.ru | awk '{print $3}')

warn()
{
  echo "$@" 1>&2
}

stop()
{
  bundle exec sidekiqctl stop $sidekiq_pidfile >> $sidekiq_logfile 2>&1
}

killall()
{
  pkill -u $gitlab_user -f 'sidekiq [0-9]'
}

restart()
{
  if [ -f $sidekiq_pidfile ]; then
    stop
  fi
  killall
  start_sidekiq -d -L $sidekiq_logfile >> $sidekiq_logfile 2>&1
}

start_no_deamonize()
{
  start_sidekiq >> $sidekiq_logfile 2>&1
}

start_sidekiq()
{
  exec bundle exec sidekiq -C "${sidekiq_config}" -e $RAILS_ENV -P $sidekiq_pidfile "$@"
}

load_ok()
{
  sidekiq_pid=$(cat $sidekiq_pidfile)
  if [ -z "$sidekiq_pid" ] ; then
    warn "Could not find a PID in $sidekiq_pidfile"
    exit 0
  fi

  if (ps -p $sidekiq_pid -o args | grep '\([0-9]\+\) of \1 busy' 1>&2) ; then
    warn "Too many busy Sidekiq workers"
    exit 1
  fi

  exit 0
}

case "$1" in
  stop)
    stop
    ;;
  start)
    restart
    ;;
  start_no_deamonize)
    start_no_deamonize
    ;;
  start_foreground)
    start_sidekiq
    ;;
  restart)
    restart
    ;;
  killall)
    killall
    ;;
  load_ok)
    load_ok
    ;;
  *)
    echo "Usage: RAILS_ENV=your_env $0 {stop|start|start_no_deamonize|restart|killall|load_ok}"
esac
