#!/usr/bin/env ruby

# Try to load external libs, helpers and constants
begin
  require "rubygems"
  require "optparse"
  require 'daemons'
  require_relative "../lib/pushyd/conf"
rescue LoadError
  raise "EXITING: some basic libs were not found"
end
include PushyDaemon


# Handle configuration
APP_ROOT = File.expand_path(File.dirname(__FILE__) + "/../")
begin
  # Defaults
  cmd_config = nil
  cmd_logfile = nil
  cmd_env = "production"
  cmd_dump = false

  # Parse options and check compliance
  OptionParser.new do |opts|
    opts.banner = "Usage: #{File.basename $PROGRAM_NAME} [options] start|stop"
    opts.on("-l", "--log LOGFILE")           { |path| cmd_logfile = File.expand_path(path)}
    opts.on("-c", "--config CONFIGFILE")     { |path| cmd_config = File.expand_path(path)}
    opts.on("-e", "--environment ENV")       { |env| cmd_env = env }
    opts.on("-d", "--dump")                  { cmd_dump = true }
    opts.on("",   "--dev")                   { cmd_env = "development" }
  end.order!(ARGV)

  # Build Chamber-based configuration from Gemspec with initial context
  Conf.prepare root: APP_ROOT, gemspec: "pushyd", env: cmd_env, config: cmd_config, logfile: cmd_logfile

rescue OptionParser::InvalidOption => e
  abort "EXITING: InvalidOption: #{e.message} \n #{e.backtrace.to_yaml}"
rescue PushyDaemon::ConfigParseError => e
  abort "EXITING: ConfigParseError: #{e.message} \n #{e.backtrace.to_yaml}"
rescue StandardError => e
  abort "EXITING: StandardError: #{e.message} \n #{e.backtrace.to_yaml}"
end

# Display final configuration
puts "--- #{Conf.name} #{Conf.version}"
puts "YAML Parser    \t #{YAML.name}"
puts "Environment    \t #{Conf.env}"
puts "Config files   \t #{Conf.files}"
puts "Loging to file \t #{Conf.log.logfile}"

# Quit if config dump requested
if cmd_dump
  puts Conf.dump
  exit(0)
end

# Run daemon
run_options = {
  ontop: false,
  :backtrace  => true,
  :multiple   => false
  }
Daemons.run_proc('pushy-daemon', run_options) do
  # Load code
  puts "--- load code"
  require_relative "../lib/pushyd"

  # Start daemon
  puts "--- start daemon"
  PushyDaemon::Daemon.run
end