require 'rake'
require 'rake/testtask'
require 'rake/rdoctask'
require 'erb'
require 'rubygems'
require 'active_record'
require 'active_record/fixtures'
require 'ftools'

rails_root		 = File.expand_path(RAILS_ROOT)
plugin_root		 = File.join(rails_root, 'vendor', 'plugins', 'click_to_globalize')
templates_root = File.join(plugin_root, 'templates')
shared_folder  = File.join(rails_root, 'app', 'views', 'shared')

require "#{plugin_root}/test/lib/jstest"

files = { :click_to_globalize_js        => File.join(rails_root, 'public', 'javascripts',  'click_to_globalize.js'),
          :click_to_globalize_css       => File.join(rails_root, 'public', 'stylesheets',  'click_to_globalize.css'),
          :locale_controller_rb         => File.join(rails_root, 'app',		 'controllers', 'locale_controller.rb'),
          :locale_helper_rb  		        => File.join(rails_root, 'app',		 'helpers',			'locale_helper.rb'),
          :_click_to_globalize_html_erb => File.join(rails_root, 'app',		 'views',			  'shared', '_click_to_globalize.html.erb') }

desc 'Default: run click task.'
task :default => :click

desc 'Run tests.'
task :click => ['click:test']

namespace :click do
  desc 'Test Click To Globalize.'
  task :test => ['click:test:all']
  
  namespace :test do
	  desc 'Test both ruby and javascript code.'
	  task :all => [:ruby, :js]

	  desc 'Test ruby code.'
	  Rake::TestTask.new(:ruby) do |t|
		  t.libs << "#{plugin_root}/lib"
		  t.libs << "#{plugin_root}/test/test_helper"
		  t.pattern = "#{plugin_root}/test/**/*_test.rb"
		  t.verbose = true
	  end

    # Taken from Prototype rake tasks.
	  desc "Runs all the JavaScript unit tests and collects the results"
	  JavaScriptTestTask.new(:js) do |t|
		  tests_to_run		 = ENV['TESTS']		 && ENV['TESTS'].split(',')
		  browsers_to_test = ENV['BROWSERS'] && ENV['BROWSERS'].split(',')

		  t.mount("/public", "#{rails_root}/public")
		  t.mount("/test", "#{plugin_root}/test")

      test_files = (Dir["#{plugin_root}/test/unit/*.html"] + Dir["#{plugin_root}/test/functional/*.html"])
  		test_files.sort.reverse.each do |test_file|
  		  test_file = test_file.gsub(plugin_root, '')
		  	test_name = test_file[/.*\/(.+?)\.html/, 1]
		  	t.run(test_file) unless tests_to_run && !tests_to_run.include?(test_name)
		  end

		  %w( safari firefox ie konqueror opera ).each do |browser|
			  t.browser(browser.to_sym) unless browsers_to_test && !browsers_to_test.include?(browser)
		  end
	  end
	  
	  desc 'Generate documentation for Click to Globalize plugin.'
    Rake::RDocTask.new(:rdoc) do |rdoc|
    	rdoc.rdoc_dir = "#{plugin_root}/rdoc"
    	rdoc.title		= 'ClickToGlobalize'
    	rdoc.options << '--line-numbers' << '--inline-source'
    	rdoc.rdoc_files.include("#{plugin_root}/README")
    	rdoc.rdoc_files.include("#{plugin_root}/lib/**/*.rb")
    end
  end

  desc 'Setup Click to Globalize plugin (alias for click:install).'
  task :setup => :install
  
  desc 'Install Click to Globalize plugin.'
  task :install do
    # Create the app/views/shared, if needed.
    FileUtils.mkdir(shared_folder) unless File.directory?(shared_folder)

    # Copy Click To Globalize files.
    files.each do |file, path|
      file = path.split(File::SEPARATOR).last
      printf "Copying #{file} ... "
      File.cp File.join(templates_root, file), path
      puts 'DONE'
    end
    
    puts "\nClick to Globalize was correctly installed."
  end
  
  desc 'Uninstall Click to Globalize plugin.'
  task :uninstall do
    # Delete Click To Globalize files.
    files.each do |file, path|
      file = path.split(File::SEPARATOR).last
      exists = File.exists?(path)
      printf "Deleting #{file} ... "
      File.delete path if exists
      puts exists ? 'DONE' : 'SKIPPED'
    end

    # Remove app/views/shared, if exists and empty.
    if File.exists? shared_folder
      printf 'Deleting app/views/shared ... '
      empty = Dir[shared_folder+'/*'].entries.empty?
      Dir.rmdir(shared_folder) if empty
      puts   empty ? 'DONE' : 'SKIPPED'  
    end
    
    puts "\nClick To Globalize was correctly uninstalled."
  end
  
  desc 'Show the diffs for each file, camparing the app files with the plugin ones.'
  task :diff do
    files.each do |file, path|
      file = path.split(File::SEPARATOR).last
      res  = `diff #{path} #{templates_root}/#{file}`
    	puts "#{file.upcase}\n#{res}" unless res.empty?
    end
  end

  desc 'Prepare the folder plugin, copying files from the app, here.'
  task :prepare do
    files.each { |file, path| File.cp path, templates_root }
  end
end