Add more

pcm-norma-client.lua

@@ -0,0 +1,110 @@
+local connectionURL = "wss://0a71-2a03-ec00-b14a-55a-39f7-fdb9-1340-2e18.ngrok-free.app"
+
+local function splitByChunk(text, chunkSize)
+  local s = {}
+  for i=1, #text, chunkSize do
+      s[#s+1] = text:sub(i,i+chunkSize - 1)
+  end
+  return s
+end
+
+function string.starts(String,Start)
+  return string.sub(String,1,string.len(Start))==Start
+end
+
+local dfpwm = require("cc.audio.dfpwm")
+local ws, err = http.websocket(connectionURL)
+local speakers = {peripheral.find("speaker")}
+local monitor = peripheral.find("monitor")
+
+if monitor then
+  monitor.clear()
+  monitor.setCursorPos(1, 1)
+  monitor.write("yourfriend's music")
+  monitor.setCursorPos(1, 3)
+  monitor.write("currently playing:")
+  monitor.setCursorPos(1, 4)
+
+  monitor.write("nothing")
+end
+
+function restart()
+  print("connection with ", connectionURL, " closed!")
+  print("restarting in 1s")
+  os.sleep(1)
+  ws, err = http.websocket(connectionURL)
+  if not ws then
+    printError(err)
+    restart()
+  end
+end
+
+if not ws then
+  restart()
+  printError(err)
+end
+
+
+parallel.waitForAll(
+  function()
+    while true do
+      local _, url = os.pullEvent("websocket_closed")
+      if url == connectionURL then
+        restart()
+      end
+    end
+  end,
+  function() 
+    while true do
+      local _, url, resp, isBinary = os.pullEvent("websocket_message")
+      if url == connectionURL then
+        if not string.starts(resp, "{") then
+          local bytes = {("b"):rep(#resp):unpack(resp)}
+          bytes[#bytes]=nil
+
+          local functions = {}
+
+          for k,v in pairs(speakers) do
+              table.insert(functions, function ()
+                  while not v.playAudio(bytes, 3) do
+                      os.pullEvent("speaker_audio_empty")
+                  end
+              end)
+          end
+
+          parallel.waitForAll(table.unpack(functions))
+        else
+          local json = textutils.unserialiseJSON(resp)
+          if json.type == "update" then
+            local file = io.open(shell.getRunningProgram(), "w")
+            if not file then return end
+            file:write(json.file)
+          end
+          if json.type == "playing" then
+            if monitor then 
+              local width, height = monitor.getSize()
+              for k=4,height do
+                monitor.setCursorPos(1, k)
+                monitor.write(string.rep(" ", width))
+              end
+
+              for k, v in pairs(splitByChunk(json.data, width)) do
+                monitor.setCursorPos(1, k+3)
+                monitor.write(v)
+              end
+            else
+              print("Playing: ")
+              print(json.data)
+            end
+          end
+          if json.type == "reboot" then
+            os.reboot()
+          end
+          if json.type == "shutdown" then
+            os.shutdown()
+          end
+        end
+      end
+    end
+  end
+)