twitch

-- Program made by MCTVMessy
-- Youtube, Twitch, Twitter - /MCTVMessy

-- StreamID - Change to needed channel
streamid = "OfficialMCTVmessy"

-- Set the Y line on the monitor
line_streamer = 1
line_followers = 3
line_follower = 4
line_viewers = 5

-- SleepTime to set how often to grab new info from
-- the api, if it is too fast, then twitch will
-- flag you for spam, and stop sending data!
SleepTime = 60

-- Check to see if the JSON api exists, download it
if not fs.exists('json') then
  print("JSON API not found - Downloading...")
  shell.run("pastebin get 4nRg9CHU json")
end

os.loadAPI("json")

local m = peripheral.find("monitor")

m.setTextColor(colors.white)
m.setTextScale(1)

function getFollowers()
  str = http.get("https://api.twitch.tv/kraken/channels" .. streamid .. "/followers?limit=1").readAll()
  obj = json.decode(str)
  follows = json.encodePretty(obj._total)
  follower = json.encodePretty(obj.follows[1].user.name)
  follower = follower:gsub('"', '')
  return follows, follower
end

function getViewerCount()
  str = http.get("https://api.twitch.tv/kraken/streams/" .. streamid).readAll()
  obj = json.decode(str)
  if obj.stream == nil then
    return nil
  else
    return json.encodePretty(obj.stream.viewers)
  end
end

while true do
  local status, live = pcall(getViewerCount)

  if status then
    m.setCursorPos(1,line_streamer)
    if live == nil then
      m.setBackgroundColor(colors.white)
      m.clear()
      m.write(streamid)
      m.setCursorPos(1,line_viewers)
      m.write("Live Viewers: Offline")
    else
      m.setBackgroundColor(colors.red)
      m.clear()
      m.write(streamid)
      m.setCursorPos(1,line_viewers)
      m.write("Live Viewers: " .. live)
    end
  else
      m.setBackgroundColor(colors.orange)
      m.clear()
      m.write(streamid)
      m.setCursorPos(1,line_viewers)
  end

  local status, followers, follower = pcall(getFollowers)

  if status then
    m.setCursorPos(1,line_followers)
    m.write("Twitch Followers: " .. followers)

    m.setCursorPos(1,line_follower)
    m.write("Last Follower: " .. follower)
  else
    m.setCursorPos(1,line_followers)
    m.write("Twitch Followers: ERROR")

    m.setCursorPos(1,line_follower)
    m.write("Last Follower: ERROR")
  end

  sleep(SleepTime)
end