#!/usr/bin/env ruby

if File.exists?('Gemfile')
  require 'rubygems'
  require 'bundler'
  Bundler.setup
end

require 'linecook/version'
require 'linecook/commands'
registry = Linecook::Commands::Command.registry

cmd = ARGV.shift
cmd_class = registry[cmd]

if cmd_class.nil?
  case cmd
  when nil, '-h', '--help'
    puts "usage: linecook [options] COMMAND"
    puts
    puts "commands: "
    registry.keys.sort.each do |key|
      cmd_class = registry[key]
      puts "  %-16s   %s" % [key, cmd_class.desc]
    end
    puts
    puts "options:"
    puts  "  -%s, --%-10s   %s" % ['v', 'version', 'print version']
    puts  "  -%s, --%-10s   %s" % ['h', 'help', 'print this help']
    
    exit
  when '-v', '--version'
    puts "linecook version #{Linecook::VERSION} -- #{Linecook::WEBSITE}"
    exit
  else
    puts "unknown command: #{cmd.inspect}"
    exit 1
  end
end

parser = ConfigParser.new
parser.add cmd_class.configurations
parser.on '-h', '--help', 'print this help' do
  puts "usage: linecook [options] #{cmd} #{cmd_class.args}"
  
  desc = cmd_class.desc.wrap(76, 2, "\n  ")
  unless desc.empty?
    puts
    puts "  #{desc}"
    puts
  end
  
  puts "options:"
  puts parser.to_s
  exit
end
parser.parse! ARGV

begin
  cmd_class.new(parser.config).call ARGV
rescue Linecook::Commands::CommandError
  puts $!.message unless $!.message.strip.empty?
  puts $!.backtrace if $DEBUG
  exit $!.exitstatus
end