local br = {}

local https = require('ssl.https')
local URL = require('socket.url')
local json = require('dkjson')
local utilities = require('miku.utilities')
local bindings = require('miku.bindings')

br.triggers = {
      "br.de/nachrichten/(.*).html$"
  }

function br:get_br_article(article)
  local url = 'https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20html%20where%20url=%22http://www.br.de/nachrichten/'..article..'.html%22%20and%20xpath=%22//div[@id=%27content%27]/div[1]/div[2]/div[1]|//div[@class=%27lead_picture%27]/img%22&format=json'
  local res,code  = https.request(url)
  local data = json.decode(res).query.results
  if code ~= 200 then return "HTTP-Fehler" end
  if not data then return "HTTP-Fehler" end
  
  local subtitle = data.div.h1.em
  local title = string.sub(data.div.h1.content, 3)
  local teaser = string.sub(data.div.p[1].content, 2)
  if data.div.p[3] then
    updated = data.div.p[3].content
  else
    updated = data.div.p[2].content
  end
  if data.img then
    image_url = 'https://www.br.de'..data.img.src
  end
  local text = '*'..subtitle..' - '..title..'*'..teaser..'\n_'..updated..'_'
  
  if data.img then
    return text, image_url
  else
    return text
  end
end

function br:action(msg, config, matches)
  local article = URL.escape(matches[1])
  local text, image_url = br:get_br_article(article)
  if image_url then
    utilities.send_typing(self, msg.chat.id, 'upload_photo')
    local file = download_to_file(image_url, 'br_teaser.jpg')
    utilities.send_photo(self, msg.chat.id, file, nil, msg.message_id)
  end
  utilities.send_reply(self, msg, text, true)
end

return br