require 'bitchannel'

module BitChannel

  class Syntax

    def block_ext__diary(arg)
      puts "__diary:#{arg}__"
    end

    def block_ext__write_diary(arg)
      puts "__write_diary:#{arg}__"
    end

  end

  class WikiSpace

    def view(name)
      ViewPage.new(@config, @repository[name], @repository, true)
    end

    def diary
      DiaryPage.new(@config, @repository)
    end

  end

  class Handler

    def handle_diary(req)
      @wiki.diary.response
    end

  end

  class WikiPage
    def menuitem_diary_enabled?()    true end

    def diary_rex(user = nil)
      /\A\w*#{user}(\d{8})\z/
    end

    def diary?(user = nil, page_name = nil)
      page_name ||= @page.name
      page_name =~ diary_rex(user)
    end

    def diary_page_list(num_entries = nil, user = nil)
      num_entries = 5 if 0 == num_entries.to_i
      @repository.pages.reject {|page| !diary?(user, page.name) }.sort_by {|page| page.name =~ diary_rex; $1 }.reverse[0, num_entries.to_i]
    end

    def diary_entries(num_entries = nil, user = nil)
      diary_page_list(num_entries, user).map {|page| ViewPage.new(@config, page, @repository) }
    end

    def diary_body(num_entries = nil, user = nil)
      html = []
      diary_entries(num_entries, user).each do |entry|
        html << %Q|<h1 class="diary"><a class="diary" href="#{view_url(entry.__send__(:page_name))}">#{entry.__send__(:page_name)}</a></h1>|
        html << entry.__send__(:body)
      end
      html.join
    end

    def side_menu_body
      compile_page(@repository['SideMenu'].source)
    end
  end

  class ViewPage
    def initialize(config, page, repo, top = nil)
      super(config, page)
      @repository = repo
      @top_level = top
      @revision = nil
    end

    def body
      page = @page.source
      page.gsub!(/\[\[\#comment\]\]/, '') if diary? and !@top_level
      html = compile_page(page)
      return html if diary?
      {
        'diary' => Proc.new { diary_body(*($1.to_s).split(/\s+/)) },
        'write_diary' => Proc.new { page_name = "Diary#{$1}#{Time.now.strftime("%Y%m%d")}"; %Q|<p><a href="#{cgi_url()}?cmd=edit;name=#{page_name}" 
class="dangling">[Write a diary #{page_name}]</a></p>| },
      }.each do |name, rep|
        html.gsub!(/__#{name}:?(.*)__/, &rep)
      end
      html
    end
  end

  class DiaryPage < WikiPage
    def initialize(config, repo)
      super config
      @repository = repo
      @length = 50
      @size = 5
    end

    def last_modified
      @repository.last_modified
    end

    private

    def template_id
      'diary'
    end

    def menuitem_diary_enabled?
      false
    end
  end

  class HistoryPage
    def initialize(config, page)
      super config, page
      @revision = nil
    end
  end

  class EditPage
    def body
      @text + ((diary? and @text !~ /\[\[\#comment\]\]/)? "\n\n\n\nComments\n[[#comment]]\n" : '')
    end
  end

end