# -*- encoding: utf-8 -*-
#
# This webgen plugin extends the available tags with tags that can retrieve
# stat(2) information.
#
# Copyright (2012) Paul van Tilburg <paulvt@debian.org>

# This plugin is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.

module Webgen::Tag

  # Tag that puts the access time and date of the file on the page
  class FileATimeTag

    include Base

    def call(tag, body, context)
      atime = File.atime(File.join('src', context.content_node.node_info[:src]))
      return atime.strftime(param('tag.fileatime.format'))
    end

  end # class FileADateTag

  # Tag that puts the create time and date of the file on the page.
  class FileCTimeTag

    include Base

    def call(tag, body, context)
      ctime = File.ctime(File.join('src', context.content_node.node_info[:src]))
      return ctime.strftime(param('tag.filectime.format'))
    end

  end # class FileCDateTag

  # Tag that puts the modification time and date of the file on the page.
  class FileMTimeTag

    include Base

    def call(tag, body, context)
      mtime = File.mtime(File.join('src', context.content_node.node_info[:src]))
      return mtime.strftime(param('tag.filemtime.format'))
    end

  end # class FileMDateTag

  include Webgen::WebsiteAccess

  website.config.tag.fileatime.format '%A, %B %d %H:%M:%S %Z %Y', :mandatory => 'default'
  website.config.tag.filectime.format '%A, %B %d %H:%M:%S %Z %Y', :mandatory => 'default'
  website.config.tag.filemtime.format '%A, %B %d %H:%M:%S %Z %Y', :mandatory => 'default'

  website.config['contentprocessor.tags.map']['fileatime'] = FileATimeTag.to_s
  website.config['contentprocessor.tags.map']['filectime'] = FileCTimeTag.to_s
  website.config['contentprocessor.tags.map']['filemtime'] = FileMTimeTag.to_s

end