#!/usr/bin/env ruby

require 'pathname'
require 'optparse'

# annoying fixes
class Pathname
  alias / join

  def cp(dest)
    FileUtils.copy_file(expand_path.to_s, dest.to_s, preserve = true)
  end

  def =~(regexp)
    to_s =~ regexp
  end
end

module VER
  file = File.symlink?(__FILE__) ? File.readlink(__FILE__) : __FILE__
  ROOT = File.expand_path('../../lib', file).encode(Encoding::UTF_8)

  module_function

  def require_and_run(options = {})
    # TODO: remove before release
    $LOAD_PATH.unshift(ROOT)

    if options[:fork]
      fork do
        trap(:HUP){ 'terminal disconnected' }
        require 'ver'
        run(options)
      end
    else
      require 'ver'
      run(options)
    end
  end

  def install_tm_bundle(path)
    require File.join(ROOT, 'ver/plist')
    require 'json'
    require 'fileutils'

    glob = File.expand_path('Syntaxes/*.{plist,tmLanguage}', path)

    Dir.glob(glob, File::FNM_CASEFOLD) do |syntax|
      plist = VER::Plist.parse_xml(syntax)
      name = plist['name'].to_s.gsub(/[\/\u2014]/, '-')
      puts "Installing #{name}"
      target = File.expand_path("../config/syntax/#{name}.json", ROOT)
      json = JSON.pretty_unparse(plist)
      json.gsub!(/\\x\{(\h+)\}/, '\\\\x\1')

      FileUtils.mkdir_p(File.dirname(target))
      File.open(target, 'w+'){|io| io.write(json) }
    end

    info = Plist.parse_xml(File.join(path, 'info.plist'))
    info_name = info['name']

    glob = File.expand_path('Preferences/*.{plist,tmPreferences}', path)
    preferences = {}

    Dir.glob(glob, File::FNM_CASEFOLD) do |preference|
      plist = Plist.parse_xml(preference)
      name = plist['name'].to_s.gsub(/[\/\u2014]/, '-')
      puts "Adding #{name}"
      preferences[plist['uuid']] = plist
    end

    pref = File.expand_path("../config/preferences/#{info_name}.json", ROOT)
    pref.gsub!(/[\/\u2014]/, '-')
    FileUtils.mkdir_p(File.dirname(pref))
    json = JSON.pretty_unparse(preferences)
    puts "Writing to #{pref}"
    File.open(pref, 'w+'){|io| io.write(json) }

    exit
  end
end

options = { fork: true }

op = OptionParser.new{|o|
  o.on('-Eex[:in]', '--encoding EXTERNAL[:INTERNAL]', 'used encoding'){|enc|
    options[:encoding] = enc }
  o.on('--font-family NAME', 'font family'){|fn| options[:font_family] = fn }
  o.on('--font-size INT', 'font size'){|fs| options[:font_size] = fs }
  o.on('-f', '--nofork', 'stay attached to terminal'){ options[:fork] = false }
  o.on('-k', '--keymap NAME', 'vim or emacs'){|k| options[:keymap] = k }
  o.separator ' '
  o.on('--install-tm-bundle PATH',
       'Install textmate bundle for use with VER',
       &VER.method(:install_tm_bundle))
  o.separator ' '
  o.on('-h', '--help', 'Show this help'){ puts o; exit }
  o.on('--debug', 'turn $DEBUG on'){ $DEBUG = true }
}
op.parse!(ARGV)

VER.require_and_run(options)