# A Simple RSS reader
# Copyright (C) 2015  Harald Eilertsen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

require 'rss'
require 'open-uri'
require 'yaml'


class Item
  attr_reader :title, :author, :date, :summary, :url

  def initialize(item)
    @title = item.title.content
    @author = item.author.name.content
    @date = item.updated.content
    @summary = item.summary.content.strip
    @url = item.link.href
  end
end


class Feed
  attr_reader :title, :url, :items

  def initialize(title, args)
    @title, @url = title, args['url']
    @items = []
    slurp
  end

  private

  def slurp
    open(url) do |rss|
      feed = RSS::Parser.parse(rss)

      feed.entries.each do |item|
        add Item.new(item)
      end
    end
  end

  def add(item)
    @items << item
  end
end

feeds = YAML.load(IO.read('feeds.yml'))
items = []

feeds.each do |t, f|
  feed = Feed.new(t, f)
  feed.items.each do |item|
    puts %{<article>}
    puts %{  <header>}
    puts %{    <h1>#{item.title}</h1>}
    puts %{    <section class="meta">Posted by #{item.author} at #{item.date}</section>}
    puts %{  </header>}
    puts %{  <section class="summary">#{item.summary}</summary>}
    puts %{  <footer><a href="#{item.url}">Read more...</a></footer>}
    puts %{</article>}
    puts
  end
end