require 'rbconfig'
include Config

require 'rake'
require 'rake/tasklib'

require 'rapt/test_observer'

module RaPT
  # The RaPT::TestTask is a specially augmented version of the standard
  # Rake::TestTask, which will attempt to submit test results to the
  # Rails Plugin Repository for the benefit of the community.
  class TestTask < Rake::TestTask
  
    
    # A flag to indicate whether or not test data should be submitted
    attr_accessor :submit_test_results
  
    #--
    # All that the RaPT::TestTask overrides (beyond providing helper
    # methods) is the addition of a single required file on the command
    # line (rapt/test_runner), and the additional test submission hook
    # once the tests are complete.
    # The rapt/test_runner file overrides the default test/unit
    # running mechanisms to ensure that the test result data is collected
    # and stored, and that the rake process doesn't immediately quit
    # after the tests have run.
    #++
  
    def define
      lib_path = @libs.join(File::PATH_SEPARATOR)
      desc "Run tests" + (@name==:test ? "" : " for #{@name}")
      task @name do
        @plugin_name = @name.keys[0]
        run_code = ''
        RakeFileUtils.verbose(@verbose) do
          run_code = case @loader
          when :direct
            "-e 'ARGV.each{|f| load f}'"
          when :testrb
            "-S testrb #{fix}"
          when :rake
            rake_loader
          end
          @ruby_opts.unshift( "-I#{lib_path}" )
          
          #
          @ruby_opts.unshift("-r lib/rapt/test_runner")
          
          @ruby_opts.unshift( "-w" ) if @warning
          ruby @ruby_opts.join(" ") +
            " \"#{run_code}\" " +
            file_list.collect { |fn| "\"#{fn}\"" }.join(' ') +
            " #{option_list}"
          
          # Here's the second difference.
          puts "Tests for plugin '#{@plugin_name}' complete."
          submit if @submit_test_results
        end
      end
      self
    end
 
    # Collect the result information into a hash and send it to the repository
    def submit
      data = {:plugin_name => @plugin_name}.update(environment)
      data[:plugin_revision] = plugin_revision
      
      # load the stored test result data
      test_results = RaPT::TestObserver.load_data
      data[:tests] = test_results.tests
      data[:failures] = test_results.total_failures
      
      # send the data off
      send_to_repository(data)
    end
    
    #--
    # Currently does no transmission, until we figure out the API
    #++
    def send_to_repository(test_data)
      puts "Submitting: "
      puts test_data.to_yaml
    end

    #--
    # current unused...
    #++
    def prompt_for_result_submission
      print 'Submit these results to the Rails Plugin Repository? [Yn]: '; STDOUT.flush
      unless STDIN.gets.downcase =~ /\A[n]/
        submit_results
      end
    end
 
    
    private

    def load_about_data
      @plugin_about_data = if File.exist?("vendor/plugins/#{@plugin_name}/about.yml")
        YAML.load(File.open("vendor/plugins/#{@plugin_name}/about.yml"))
      else
        {}
      end
    end
    
    def plugin_revision
      load_about_data
      @plugin_about_data[:revision] || if File.exist?("vendor/plugins/#{@plugin_name}/.svn")
        YAML.load(`svn info vendor/plugins/#{@plugin_name}}`)
        svn_info.is_a?(Hash) ? svn_info['Revision'] : nil
      else
        nil
      end
    end
     
    def environment
      { :ruby_version => [CONFIG['MAJOR'],CONFIG['MINOR'],CONFIG['TEENY']].join('.'),
        :rails_version => Rails::VERSION::STRING,
        :architecture => CONFIG['arch'] }
    end 
          
  end
end