local spotify = {}

spotify.triggers = {
  "open.spotify.com/track/([A-Za-z0-9-]+)",
  "play.spotify.com/track/([A-Za-z0-9-]+)"
}

local BASE_URL = 'https://api.spotify.com/v1'

function spotify:get_track_data(track)
  local url = BASE_URL..'/tracks/'..track
  local res,code  = https.request(url)
  if code ~= 200 then return nil end
  local data = json.decode(res)
  return data
end

function spotify:send_track_data(data, msg)
  local name = data.name
  local album = data.album.name
  local artist = data.artists[1].name
  local preview = data.preview_url
  local milliseconds = data.duration_ms
	
  -- convert s to mm:ss
  local totalseconds = math.floor(milliseconds / 1000)
  local duration = makeHumanTime(totalseconds)
	
  local text = '<b>'..name..'</b> von <b>'..artist..'</b> aus dem Album <b>'..album..'</b> <i>('..duration..')</i>'
  if preview then
    utilities.send_typing(msg.chat.id, 'upload_audio')
    utilities.send_audio(msg.chat.id, preview, 'Aus dem Album "'..album..'"\nLänge: '..duration, msg.message_id, 30, artist, name)
  else
    utilities.send_reply(msg, text, 'HTML')
  end
end

function spotify:action(msg, config, matches)
  local data = spotify:get_track_data(matches[1])
  if not data then utilities.send_reply(msg, config.errors.connection) return end
  spotify:send_track_data(data, msg)
  return
end

return spotify