require 'jasmine/headless/errors'
require 'jasmine/headless/options'

require 'fileutils'

require 'jasmine/base'
require 'coffee-script'
require 'rainbow'

require 'jasmine/files_list'
require 'jasmine/template_writer'

module Jasmine
  module Headless
    class Runner
      JASMINE_DEFAULTS = {
        'spec_files' => [ '**/*[sS]pec.js' ],
        'helpers' => [ 'helpers/**/*.js' ],
        'spec_dir' => 'spec/javascripts',
        'src_dir' => nil,
        'stylesheets' => [],
        'src_files' => []
      }

      RUNNER = File.expand_path('../../../../ext/jasmine-webkit-specrunner/jasmine-webkit-specrunner', __FILE__)

      def self.run(options = DEFAULT_OPTIONS.dup)
        new(options).run
      end

      def initialize(options)
        raise NoRunnerError if !File.file?(RUNNER)

        @options = options
      end

      def jasmine_config
        @jasmine_config ||= JASMINE_DEFAULTS.dup.merge(YAML.load_file(@options[:jasmine_config]))
      end

      def jasmine_command(*targets)
        [
          RUNNER,
          @options[:colors] ? '-c' : nil,
          @options[:report] ? "-r #{@options[:report]}" : nil,
          *targets
        ].compact.join(" ")
      end

      def run
        files_list = Jasmine::FilesList.new(
          :config => jasmine_config,
          :only => @options[:files]
        )

        targets = Jasmine::TemplateWriter.write!(files_list)
        run_targets = targets.dup
        run_targets.pop if !@options[:full_run] && files_list.filtered?

        system jasmine_command(run_targets)
        status = $?.exitstatus

        if @options[:remove_html_file] || (status == 0)
          targets.each { |target| FileUtils.rm_f target }
        end

        status
      end
    end
  end
end