module FlashSDK

  ##
  # The MXMLC task provides a rake front end to the Flex MXMLC command line compiler.
  # This task is integrated with the LibraryTask so that if any dependencies are
  # library tasks, they will be automatically added to the library_path or source_path
  # depending on whether they provide a swc or sources.
  #
  # The entire MXMLC advanced interface has been provided here. All parameter names should be
  # identical to what is available on the regular compiler except dashes have been replaced
  # by underscores.
  #
  # The following example can be pasted in a file named 'rakefile.rb' which should be placed in the same folder as an ActionScript 3.0 class named 'SomeProject.as' that extends flash.display.Sprite.
  #
  #   # Create a remote library dependency on the corelib swc.
  #   library :corelib
  # 
  #   # Alias the compilation task with one that is easier to type
  #   task :compile => 'SomeProject.swf'
  #
  #   # Create an MXMLC named for the output file that it creates. This task depends on the
  #   # corelib library and will automatically add the corelib.swc to it's library_path
  #   mxmlc 'bin/SomeProject.swf' => :corelib do |t|
  #     t.input                     = 'src/SomeProject.as'
  #     t.default_size              = '800,600'
  #     t.default_background_color  = "#FFFFFF"
  #     t.library_path              << 'lib/SomeLibrary.swc'
  #     t.source_path               << 'lib/otherlib'
  #   end
  #
  # Remember that Rake files are really just regular Ruby code, so if you want to have some configuration information shared by multiple build tasks, just define a method like:
  #
  #   def configure_tasks t
  #     t.library_path << 'lib/SomeLibrary.swc'
  #     t.source_path << 'lib/otherlib'
  #   end
  #
  #   desc "Compile the project"
  #   mxmlc 'bin/SomeProject.swf' do |t|
  #     configure_tasks t
  #     t.input = 'src/SomeProject.as'
  #   end
  #
  #   desc "Compile the test harness"
  #   mxmlc 'bin/SomeProjectRunner.swf' => :asunit4 do |t|
  #     configure_tasks t
  #     t.input = 'src/SomeProjectRunner.as'
  #   end
  #
  # == FCSH
  #
  # Building with MXMLC can be quite slow. If you'd like 
  # to measure your build times in fractions of a second
  # rather than minutes, you can use the Flex Compiler 
  # SHell (FCSH).
  #
  # Sprouts makes it incredibly easy to 
  # use FCSH, following are some simple instructions:
  #
  # Open up a new terminal, cd into your project
  # directory and run:
  #
  #    rake fcsh:start
  #
  # Open up a new terminal, cd into your project
  # directory and run whatever Rake task depends
  # on at least one MXMLC task, and call the
  # +fcsh+ task first. This can be done on the
  # terminal like this:
  #
  #    rake fcsh test
  #
  # More information about FCSH can be found on the {Project Sprouts Blog}[http://projectsprouts.org/2011/01/18/using-fcsh.html].
  #
  # == Flex Debugger (FDB)
  #
  # Like FCSH, the Flex Debugger can be initiated
  # by calling (or depending on) the +fdb+ Rake task.
  #
  #    rake fdb test
  #
  # This will drop you into the Flex Debugger shell
  # environment, you can type +help+ at anytime to 
  # learn more about what commands are available.
  #
  # You can also type +quit+ or hit CTRL+C to exit
  # FDB.
  #
  # @see FlashSDK::CompilerBase
  # @see Sprout::Executable
  #
  class MXMLC < CompilerBase

    ##
    # Main source file to send compiler.
    # This must be the last item in this list
    add_param :input, File, { :required => true, :hidden_name => true }

    ##
    # The default prefix for shell params.
    set :default_prefix, '-'

    ##
    # The the Ruby file that will load the expected
    # Sprout::Specification.
    #
    # Default value is 'flex4'
    #
    set :pkg_name, 'flex4'

    ##
    # The default pkg version
    #
    set :pkg_version, ">= #{FlashSDK::VERSION}"
    
    ##
    # The default executable target.
    #
    set :executable, :mxmlc

    def execute
      start = Time.now
      super
      duration = (Time.now - start).seconds
      Sprout.stdout.puts "[MXMLC] Compilation complete in #{duration} seconds." unless use_fcsh?
    end

    def use_fcsh?
      # Check as string b/c this is
      # how the boolean value comes
      # accross the command line input.
      ENV['USE_FCSH'].to_s == 'true'
    end

  end
end

##
# Create a new Rake::File task that will execute {FlashSDK::MXMLC}.
# 
# @return [FlashSDK::MXMLC]
#
# @example The following is a simple MXMLC task:
#
#   desc "Compile the project"
#   mxmlc 'bin/SomeProject.swf' do |t|
#     t.input = 'src/SomeProject.as'
#   end
#
def mxmlc args, &block
  exe = FlashSDK::MXMLC.new
  exe.to_rake args, &block
  exe
end