#!/usr/bin/env ruby

require 'rubygems'
require 'commander'
require 'fileutils'

JSPEC_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..'))

program :name, 'JSpec'
program :version, '1.1.3'
program :description, 'JavaScript BDD Testing Framework'
default_command :bind

command :init do |c|
  c.syntax = 'jspec init [dest]'
  c.summary = 'Initialize a JSpec project template'
  c.description = 'Initialize a JSpec project template. Defaults to the current directory when 
    <dest> is not specified.'
  c.example 'Create a directory foo, initialized with a jspec template', 'jspec init foo'
  c.when_called do |args, options|
    dest = args.shift || '.'
    unless Dir[dest + '/*'].empty?
      abort unless agree "'#{dest}' is not empty; continue? "
    end
    FileUtils.mkdir_p dest
    FileUtils.cp_r File.join(JSPEC_ROOT, 'templates', 'default', '.'), dest
    spec = File.join dest, 'spec', 'spec.html'
    contents = File.read(spec).gsub 'JSPEC_ROOT', JSPEC_ROOT
    File.open(spec, 'w') { |file| file.write contents }
    say "Template initialized at '#{dest}'"
  end
end

command :update do |c|
  c.syntax = 'jspec update [path ...]'
  c.summary = 'Update JSpec releases'
  c.description = 'Update JSpec release in [paths], this will allow you to utilize the latest
    JSpec features. If you have suites running at a path other than the regular 
    spec/spec.html simply pass them as arguments to this sub-command.'
  c.when_called do |args, options|
    args = %w( spec/spec.html ) if args.empty?
    args.each do |path|
      next unless File.exists? path
      contents = File.read(path).gsub /visionmedia-jspec-(\d+\.\d+\.\d+)/, "visionmedia-jspec-#{program(:version)}"
      File.open(path, 'r+'){ |file| file.write contents } 
      say "Updated #{path} to JSpec #{program(:version)}"
    end
  end
end

command :run do |c|
  c.syntax = 'jspec run [path] [options]'
  c.summary = 'Run specifications'
  c.description = 'Run specifications, defaulting [path] to spec/spec.html. You will need 
    supply [path] if your specs do not reside in this location. `run --bind` is
    the default sub-command of jspec so you may simply execute `jspec` in order
    to bind execution of your specs when a file is altered.'
  c.example 'Run once in Safari', 'jspec run'
  c.example 'Run once in Safari and Firefox', 'jspec run --browsers Safari,Firefox'
  c.example 'Run custom spec file', 'jspec run foo.html'
  c.example 'Auto-refresh browsers when a file is altered', 'jspec run --bind --browsers Safari,Firefox'
  c.example 'Shortcut for the previous example', 'jspec --browsers Safari,Firefox'
  c.option '-b', '--browsers BROWSERS', Array, 'Specify browsers to test, defaults to Safari'
  c.option '-p', '--paths PATHS', Array, 'Specify paths when binding, defaults to javascript within ./lib and ./spec'
  c.option '-B', '--bind', 'Auto-run specs when source files or specs are altered'
  c.when_called do |args, options|
    begin
      require 'bind'
      spec = args.shift || 'spec/spec.html'
      options.default :browsers => %w( Safari ), :paths => ['lib/**/*.js', 'spec/**/*.js']
      action = Bind::Actions::RefreshBrowsers.new spec, *options.browsers
      if options.bind
        listener = Bind::Listener.new :paths => options.paths, :interval => 1, :actions => [action], :debug => $stdout
        listener.run!
      else
        action.call spec
      end
    rescue LoadError
      abort "jspec run requires the visionmedia-bind gem; http://visionmedia.github.com/bind/"
    end
  end
end
alias_command :bind, :run, '--bind'