local dfpwm = require("cc.audio.dfpwm")

local speaker = peripheral.find("speaker")
local monitor = peripheral.find("monitor")
local chat = peripheral.find("chatBox")
local detector = peripheral.find("playerDetector")

local distance = 20
local target = "OROURKEIRE"
--local target = "devplayer0"

function klaxon()
  local decoder = dfpwm.make_decoder()
  for chunk in io.lines("data/danger.dfpwm", 16 * 1024) do
    local buffer = decoder(chunk)
  
    while not speaker.playAudio(buffer) do
      os.pullEvent("speaker_audio_empty")
    end
  end
end

function showWarning()
  monitor.clear()
  monitor.setTextScale(2)
  --[[local w, h = monitor.getSize()
  local tw = string.len("WARNING")
  for i = 1, 3 do
    monitor.setCursorPos(w/2 - tw/2, (h/3)*i)
    monitor.write("WARNING")
  end]]
  monitor.setCursorPos(8, 3)
  monitor.write("WARNING")
  monitor.setCursorPos(8, 5)
  monitor.write("WARNING")
  monitor.setCursorPos(8, 8)
  monitor.write("WARNING")
end

function broadcastWarning()
  local msg = {
    {text = "WARNING", color = "red"},
    {text = ": Kevin is ", color = "white"},
    {text = "IN THE BASE", color = "yellow"},
    {text = "!"},
  }
  local msgJSON = textutils.serializeJSON(msg)
  chat.sendFormattedMessage(msgJSON)
end

while true do
  if detector.isPlayerInRange(25, target) then
    showWarning()
    broadcastWarning()
    klaxon()
  else
    monitor.clear()
  end

  sleep(1)
end