$:.unshift File.join(File.dirname(__FILE__), '..', '..', '..', 'lib')

require 'test/unit'
require 'rexml/xpath'
require 'buildmaster/site/template_builder'
require 'buildmaster/tree_to_object'
require 'yaml'

module BuildMaster
class TemplateBuilderTest < Test::Unit::TestCase
  def test_should_generate_template_document
    builder = TemplateBuilder.new
    document = builder.generate
    assert_equal('include', REXML::XPath.first(document, '/html/head/title/*').name)
    assert_css_path(document, 'buildmaster.css')
  end
  
  def test_should_update_header_with_title_and_css
    builder = TemplateBuilder.new
    builder.title_header = 'Title Header - '
    builder.css_path = 'mycss.css'
    document = builder.generate
    first_child = REXML::XPath.first(document, '/html/head/title').children[0]
    assert_equal(REXML::Text, first_child.class)
    assert_equal('Title Header - ', first_child.value)
    assert_css_path(document, 'mycss.css')
  end
  
  def test_should_have_logo_defaults
    builder = TemplateBuilder.new
    assert_equal(nil, builder.logo.path)
    assert_equal('index.html', builder.logo.link)
  end
  
  def test_should_generate_logo_and_link
    builder = TemplateBuilder.new
    builder.logo.path = 'gif/logo.gif'
    builder.logo.link = 'main.html'
    document = builder.generate
    header = assert_first(document, '/html/body/div[@class="header"]')
    anchor_href = assert_first(header, 'a/template:href')
    assert_equal('main.html', anchor_href.attributes['url'])
    img_href = assert_first(header, 'a/img/template:href')
    assert_equal('gif/logo.gif', img_href.attributes['url'])
  end
  
  def test_should_build_left_menu
    builder = TemplateBuilder.new
    builder.left_bottom_logo.path='http://www.example.com/logo.gif'
    group = builder.menu_group('Software')
    group.menu_item('Download', 'download.html')
    group.menu_item('License', 'license.html')
    group.more='more.html'
    group = builder.menu_group('Documentation', 'doc/index.html')
    group.menu_item('Getting Started', 'doc/getting-started')
    document = builder.generate
    groups = REXML::XPath.match(document, '/html/body/div[@class="left"]/div[@class="MenuGroup"]')
    assert_equal(2, groups.size)
    first_group = groups[0]
    header = assert_first(first_group, 'h1')
    assert_equal('Software', header.text)
    items = REXML::XPath.match(first_group, 'ul/li')
    assert_equal(3, items.size)
    first_item = items[0]
    anchor = assert_first(first_item, 'template:link')
    assert_equal('download.html', anchor.attributes['href'])
    assert_equal('Download', anchor.text)
    more = items[2]
    assert_equal('More', more.attributes['class'])
  end
  
  def test_should_have_releases_info
    builder = TemplateBuilder.new
    releases = builder.releases
    releases.stable_version = '0.6'
    releases.pre_release_version = '0.7'
    releases.snap_shot_version = 'n/a'
    releases.download_link = 'download.html'
    releases.versioning_link = 'versioning.html'
    document = builder.generate
    assert_equal('Latest Versions', REXML::XPath.first(document, '/html/body/template:when/div[@class="right"]/div/h1').text)
  end
  
  def test_should_have_no_release_info_if_not_assigned
    builder = TemplateBuilder.new
    builder.releases.download_link = nil
    document = builder.generate
    assert_equal(0, REXML::XPath.match(document, '/html/body/template:when/div/*').size)
  end

  def test_should_read_from_yaml
    content = <<CONTENT
title_header: BuilderMaster -
logo:
  path: logo.gif
  link: index.html
menu_groups:
- title: Software
  menu_items:
  - title: Download
    link: download.html
  - title: Source Repository
    link: http://rubyforge.org/scm/?group_id=1680
  - title: Project License
    link: license.html
- title: Documentation...
  link: document.html
  menu_items:
  - title: Getting Started
    link: getting-started.html
  - title: Project Release
    link: release-project.html
  - title: Site Building
    link: build-site.html
  more: doc/index.html
CONTENT
    builder = TreeToObject.from_yaml(content, TemplateBuilder.new)
    assert_equal('BuilderMaster -', builder.title_header)
    assert_equal('logo.gif', builder.logo.path)
    assert_equal('index.html', builder.logo.link)
  end

  private
  def assert_css_path(document, expected)
    href = REXML::XPath.first(document, '/html/head/link/*')
    assert_equal('href', href.name)
    assert_equal(expected, href.attributes['url'])
  end  
  
  def assert_first(xml_model, xpath)
    first = REXML::XPath.first(xml_model, xpath)
    assert_not_nil(first)  
    return first
  end
end
end