#!/usr/bin/env ruby

require "httparty"
require "nokogiri"
require "open-uri"

feed = Nokogiri::XML(
  URI.open("https://davideisinger.com/index.xml")
)

post = feed.search("rss channel item").first
title = post.search("title").text
url = post.search("link").text
body = post.search("description").text

body = %(<h1>#{title}</h1>
<p>
  By David Eisinger &middot;
  <a href="#{url}">View original post</a>
</p>
#{body})

# escape curly braces (they're important in listmonk)
body = body
  .gsub("{", "&#123;")
  .gsub("}", "&#125;")

# half-size images
body = body
  .gsub(/width="(\d+)"/) { %(width="#{$1.to_i/2}") }
  .gsub(/height="(\d+)"/) { %(height="#{$1.to_i/2}") }

# replace audio tags with links
body = body.gsub(/<audio controls src="([^"]+)"><\/audio>/) do
  filename = $1.split("/").last
  %(<a href="#{$1}">#{filename}</a>)
end

# remove footnote jump links
body = body
  .gsub(/<a href="#fn[^>]+>(\d+)<\/a>/) { $1 }
  .gsub(/&#160;<a href="#fnref:[^>]+>&#x21a9;&#xfe0e;<\/a>/, "")

p HTTParty.post(
  "https://dispatch.davideisinger.com/api/campaigns",
  basic_auth: {
    username: ENV["USERNAME"],
    password: ENV["PASSWORD"]
  },
  headers: { 'Content-Type' => 'application/json' },
  body: {
    name: title,
    subject: title,
    body: body,      
    lists: [1]
  }.to_json,
  debug_output: $stdout
)