module RubyQA
  require 'erb'
  class Test
    DEFAULT_OPTIONS={
      :site          => "",
      :cluster       => false,
      :has_key       => "",
      :template      => nil,
    }.freeze

    attr_reader :name, :options, :proc

    def initialize (name, options = {}, &test_block)
      @tests = Hash.new
      @name = name
      @options = DEFAULT_OPTIONS.merge(options)
      @test = test_block
      @description = ""
      if @options[:description]
        @description=options[:description]
        @options.delete(:description)
      end
      if @options.has_key? :template
        @template = @options[:template]
        @options.delete(:template)
      end
    end

    def valid_host(host)
      ## By default if options weren't changed, then
      ## we just assume it is to be tested against all 
      ## provided hosts
      is_valid = 0
      if @options == DEFAULT_OPTIONS
        return true
      end

      DEFAULT_OPTIONS.each do |key,value|
        if @options[key] != value and host[key] != @options[key]
          return false
        end
      end

      return true
    end

    def run (host)
      test_status = "N/A"
      context = Hash.new
      if @test.call(host, context)
        test_status = "PASSED".green
      else
        test_status = "FAILED".red
      end
      @tests[host.name]={
        :host    => host,
        :status  => test_status,
        :context => context
      }
    end

    def report
      if @tests.count == 0
        return
      end

      if @template.nil?
        self.render
      else 
        @template.result(binding)
      end
    end
  end
  RubyQA::Template::BASE_TEST_TEMPLATE.def_method(RubyQA::Test, 'render')

end