#!/usr/bin/env ruby

$LOAD_PATH.unshift File.expand_path(File.join(File.dirname(__FILE__), '..', 'lib'))

require 'makesure'
require 'optparse'

cron_path = '/etc/cron.d/makesure.cron'

parser = OptionParser.new do |opts|
  opts.banner = "Usage: makesure [options] COMMAND"

  opts.separator ""
  opts.separator "Options:"

  opts.on("-c", "--cron <path to file>", "Where should makesure put its cron entries? Must be a file that will be loaded by cron") do |path|
    cron_path = path
  end

  opts.on("-h", "--help", "Show this message") do
    puts opts
    exit
  end

  opts.separator ""
  opts.separator "Commands:"
  opts.separator "  init    Creates an initial Makesurefile"
  opts.separator "  update  Updates cron with commands scheduled by your system definitions"
end

parser.parse!

case ARGV[0]
when 'init'
  dir = File.expand_path(ARGV[1] || '.')
  abort "#{dir} is not a directory" unless File.directory?(dir)
  
  file = "Makesurefile"
  if File.exists?(file)
    warn "[skip] '#{file}' already exists"
  elsif File.exists?(file.downcase)
    warn "[skip] '#{file.downcase}' exists, which could conflict with `#{file}'"
  else
    puts "[add] writing '#{file}'"
    File.open(file, "w") do |f|
      f.write(<<-FILE)
# Tell makesure how to get in touch when things break
# (hint: Makesure.alert_options are passed almost directly to Pony.mail)
Makesure.alert_options = {
  :to   => 'dev@example.com', # who should hear about it when something's wrong?
  :via  => :smtp, # how should makesure send email (:smtp or :sendmail)
  :via_options => {
    :address              => 'smtp.gmail.com',
    :port                 => '587',
    :enable_starttls_auto => true,
    :user_name            => 'user',
    :password             => 'password',
    :authentication       => :plain, # :plain, :login, :cram_md5, no auth by default
    :domain               => "localhost.localdomain" # the HELO domain provided by the client to the server
  }
}

Makesure.uid = "nobody" # what user should makesure run its tasks as (this can be set per system as well)

# Tell makesure about your systems
Dir['systems/*.rb', 'lib/systems/*.rb'].each { |sys| load(sys) }
FILE
    end
  end
when 'update'
  Makesure.load_system_defs
  Makesure::Cron.new(:cron_path => cron_path)
else
  puts parser.help
end