#!/usr/bin/env ruby
require 'date'
require 'json'

MEDIA = '/srv/media/'
SOCIAL = '/srv/social/outbox/object/note/'
WWW = '/srv/www/pdp8-test/'

items = []
%w[music videos].each do |cat|
  Dir[File.join(MEDIA, cat, '*')].each do |dir|
    next unless File.basename(dir).match(/^\d/)

    date = File.basename(dir).split('_')[0]
    updated = Date.parse(date)
    items << {
      title: File.basename(dir).split('_')[1..-1].join(' '),
      link: File.join('https://pdp8.info', cat + '.html#' + date),
      guid: File.join('https://pdp8.info', cat + '.html#' + date),
      description: '<![CDATA[' + File.read(File.join(dir, 'README')).chomp.sub(/^\n/, '').sub("\n\n", "\n") + ']]>',
      pubDate: updated.httpdate
    }
  end
end

# duplication of music/video posts?
# Dir[File.join(SOCIAL, '*.json')].each do |json|
#   note = JSON.parse(File.read(json))
#   next unless note['attributedTo'] == 'https://social.pdp8.info/pdp8' and note['to'].include?('https://www.w3.org/ns/activitystreams#Public')
#
#   # TODO: add enclosures for attachments
#   # tags
#   items << {
#     title: note['published'],
#     link: 'https://pdp8.info/social/create.html#' + note['published'],
#     guid: note['id'],
#     description: '<![CDATA[' + note['content'] + ']]>',
#     pubDate: Date.parse(note['published']).httpdate
#   }
# end

date = Dir[File.join(MEDIA, 'pictures', '*.jpeg')].last.split('_')[0]
updated = Date.parse(date)
items << {
  title: 'pictures',
  link: 'https://pdp8.info/pictures.html',
  guid: 'https://pdp8.info/pictures.html',
  pubDate: updated.httpdate
}

xml = ['<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>pdp8</title>
    <link>https://pdp8.info</link>
    <description>music, pictures and videos</description>
    <language>en</language>
    <atom:link href="https://pdp8.info/rss.xml" rel="self" type="application/rss+xml" /> ']

date = DateTime.now
xml << "    <pubDate>#{date.httpdate}</pubDate>"

items.sort_by { |i| i['pubDate'] }.each do |item|
  xml << '    <item>'
  item.each do |k, v|
    xml << "      <#{k}>#{v}</#{k}>"
  end
  xml << '    </item>'
end
xml << '  </channel>
</rss>'

File.open(File.join(WWW, 'rss.xml'), 'w+') { |f| f.puts xml.join("\n") }