#!/usr/bin/env ruby

require 'test/unit'
currentPath = File.dirname(__FILE__)
require File.join( currentPath, '../../lib/masterview' )
require File.join( currentPath, '../test_helper' )

class Parent < MasterView::DirectiveBase

      metadata :namespace => 'exa',
        :priority => 'High',
        :category => 'example',
        :description => 'Example of a parent directive which takes input from its children'
  
      def initialize(dcs)
        super
        @children_ids = []
      end
      
      def add_child_id(id)
        @children_ids.push id
      end
  
      event :after_etag do
        render @children_ids.inspect
      end

end

class Child < MasterView::DirectiveBase

      metadata :namespace => 'exa',
        :category => 'example',
        :description => 'Example of a child directive which communicates with the parent'
  
      event :stag do
        parent = find_parent_directive(Parent)
        parent.add_child_id(attr_value) if parent
      end

end

class ChildWithBlock < MasterView::DirectiveBase

      metadata :namespace => 'exa',
        :category => 'example',
        :description => 'Example of a child directive which contains a filter block which communicates with the parent'
  
      event :stag do
        parent = find_parent_directive(Parent){ |d| d.attr_value=="hello" }
        parent.add_child_id(attr_value) if parent
      end

end


class TestFindDirectiveParent < Test::Unit::TestCase

  def setup
    MasterView::IOMgr.erb = MasterView::MIO::StringHashMIOTree.new({}, '.rhtml', :logging => true)
  end

  
  def test_find_multiple_levels
    template = <<-END
      <div mv:generate='foo/bar'>
        <div exa:parent="hello">
          <one exa:child="a">Hello</one>
          <two>
            <two1 exa:child="b">World</two1>
            <two1 exa:child="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two><two1>World</two1><two1>World</two1></two></div>["a", "b", "c"] </div>}
    }
    assert_template_result expected, template
  end

  def test_find_checking_dir_class
    template = <<-END
      <div mv:generate='foo/bar'>
        <div exa:parent="hello">
          <one exa:child="a">Hello</one>
          <two mv:attr=":id => '1'">
            <two1 exa:child="b">World</two1>
            <two1 exa:child="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two id="1"><two1>World</two1><two1>World</two1></two></div>["a", "b", "c"] </div>}
    }
    assert_template_result expected, template
  end


  def test_find_multiple_parents
    template = <<-END
      <div mv:generate='foo/bar'>
        <div exa:parent="hello">
          <one exa:child="a">Hello</one>
          <two exa:parent="wow">
            <two1 exa:child="b">World</two1>
            <two1 exa:child="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two><two1>World</two1><two1>World</two1></two>["b", "c"] </div>["a"] </div>}
    }
    assert_template_result expected, template
  end


  def test_find_parent_not_found
    template = <<-END
      <div mv:generate='foo/bar'>
        <div>
          <one exa:child="a">Hello</one>
          <two>
            <two1 exa:child="b">World</two1>
            <two1 exa:child="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two><two1>World</two1><two1>World</two1></two></div></div>}
    }
    assert_template_result expected, template
  end

  def test_find_multiple_parents_using_filter_block
    template = <<-END
      <div mv:generate='foo/bar'>
        <div exa:parent="hello">
          <one exa:child_with_block="a">Hello</one>
          <two exa:parent="wow">
            <two1 exa:child_with_block="b">World</two1>
            <two1 exa:child_with_block="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two><two1>World</two1><two1>World</two1></two>[] </div>["a", "b", "c"] </div>}
    }
    assert_template_result expected, template
  end

  def test_find_multiple_parents_using_filter_block_not_found
    template = <<-END
      <div mv:generate='foo/bar'>
        <div exa:parent="notfound">
          <one exa:child_with_block="a">Hello</one>
          <two exa:parent="wow">
            <two1 exa:child_with_block="b">World</two1>
            <two1 exa:child_with_block="c">World</two1>
          </two>
        </div>
      </div>
    END
    expected = {
      'foo/bar' => %q{<div><div><one>Hello</one><two><two1>World</two1><two1>World</two1></two>[] </div>[] </div>}
    }
    assert_template_result expected, template
  end

end