#!/usr/bin/env ruby

if ARGV.size == 0
  puts '
Usage: controller ( boot | quit )
       controller ( start | status | stop | restart | log ) [worker]
       controller [--help]

Example:
  % controller boot    # start bluepilld and jobs
  % controller status  # check on status of jobs
  % controller log dor_accessionWF_descriptive-metadata # view log for worker
  % controller stop    # stop jobs
  % controller quit    # stop bluepilld
  
Environment:
  BLUEPILL_BASEDIR - where bluepill stores its state (default: run/bluepill)
  BLUEPILL_LOGFILE - output log (default: log/bluepill.log)
  ROBOT_ENVIRONMENT - (default: development)
  
Configuration files (in search order)
  config/environments/bluepill_development.rb
  config/environments/bluepill.rb
  config/bluepill.rb
'
  exit -1
end

ENV['ROBOT_ENVIRONMENT'] ||= 'development'
ENV['BLUEPILL_BASE_DIR'] ||= File.expand_path('run/bluepill')
ENV['BLUEPILL_LOGFILE']  ||= File.expand_path('log/bluepill.log')

cmd = 'bluepill'
cmd << ' --no-privileged'
cmd << " --base-dir #{ENV['BLUEPILL_BASE_DIR']}"
cmd << " --logfile #{ENV['BLUEPILL_LOGFILE']}"

if ARGV[0] == 'boot'
  ["config/environments/bluepill_#{ENV['ROBOT_ENVIRONMENT']}.rb",
   "config/environments/bluepill.rb",
   "config/bluepill.rb"].each do |fn|
    if File.file?(fn)
      system "#{cmd} load #{fn}"
      exit 0
    end
  end
  puts "ERROR: Cannot find bluepill configuration file for #{ENV['ROBOT_ENVIRONMENT']}"
  exit -1
else
  system "#{cmd} #{ARGV.join(' ')}"
end