require "pry"
require "open-uri"
require "base64"
require "erb"
require "json"

USER_ID = "@z2M8msI2EUubNHnrEJncglDIy2/SUd+36jCyJnfeiHk=.ed25519"
BLOB_URL = "http://localhost:8989/blobs/get/%s?contentType=%s"
BLOB_PATH = "source/img/ssb/%s.%s"
POST_TEMPLATE = ERB.new(File.read("ssb_import.erb.markdown"))

txt = `ssb-server createHistoryStream --id #{USER_ID} | jq 'select(.value?.content?.type? == "post")' -c -M`
posts = []

txt.each_line do |x|
  json = JSON.parse(x, symbolize_names: true)
  if json.dig(:value, :content, :reply) == nil
    t = Time.at(json.dig(:value, :timestamp) / 1000)
    posts.push({
      sequence: json.dig(:value, :sequence),
      time: t.iso8601,
      key: Base64.urlsafe_encode64(Base64.decode64(json.fetch(:key))),
      text: (json.dig(:value, :content, :text) || ""),
      links: json.dig(:value, :content, :mentions) || [],
    })
  end
end

posts.map do |post|
  key = post.fetch(:key)
  content = post[:text]
  time = post[:time]
  sequence = post[:sequence]
  post[:links].map do |link|
    hash = link[:link]
    case hash[0]
    when "@" # Just link usernames to the SSB Site
      content.gsub!(hash, "https://scuttlebutt.nz/")
    when "&"
      b64 = Base64.urlsafe_encode64(Base64.decode64(hash))
      type = link[:type]
      url = BLOB_URL % [hash, type]
      extension = type.split("/").last
      path = BLOB_PATH % [b64, extension]
      unless File.file?(path)
        File.write(path, open(url).read)
        `convert #{path} +dither -remap netscape: #{path}`
        `convert #{path} -resize 640 #{path}`
      end
      content.gsub!(hash, path.gsub("source/", "http://tilde.town/~netscape_navigator/"))
    end
  end
  File.write("source/blog/ssb-#{key}.html.markdown", POST_TEMPLATE.result(binding))
end