Update last.lua

last.lua

@@ -2,6 +2,7 @@
 -- install morefonts in /
 -- also ask me for a sanjuuni.sad.ovh password or selfhost it
 -- change the last.fm username in checkTrack, and my name in doLastfm
+-- https://git.sad.ovh/sophie/convert
 
 local mf = require("../morefonts")
 
@@ -10,8 +11,8 @@ local function drawImage(monitor, image, dx, dy, palette)
       printError('Image passed to drawImage was nil.')
       return
     end
-
-    for _, frame in ipairs(image) do
+    frame = image[1]
+--    for _, frame in ipairs(image) do
         for y, row in ipairs(frame) do
             monitor.setCursorPos(dx+1, dy+y)
             monitor.blit(table.unpack(row))
@@ -22,17 +23,77 @@ local function drawImage(monitor, image, dx, dy, palette)
             else monitor.setPaletteColor(2^i, c) end
         end end
         if image.animation then sleep(frame.duration or image.secondsPerFrame or 0.05) end
-    end
+--    end
     monitor.setBackgroundColor(colors.black)
     monitor.setTextColor(colors.white)
     monitor.setCursorPos(1, 1)
 end
 
+local function playAudio(title, artist)
+  if title == '' or artist == '' then
+    print("empty 'audio' sent out")
+    return
+  end
+
+  local audioReq = http.post({
+      url = "https://sanjuuni.sad.ovh/youtube",
+      body = textutils.serialiseJSON({
+        ["title"] = title,
+        ["artist"] = artist
+      }),
+      headers = {
+          ["Content-Type"] = "application/json",
+          ["Authorization"] = "<..>"
+      }
+  })
+
+  if audioReq == nil then -- usually works on the second one, not sure what's broken
+    audioReq = http.post({
+      url = "https://sanjuuni.sad.ovh/youtube",
+      body = textutils.serialiseJSON({
+        ["title"] = title,
+        ["artist"] = artist
+      }),
+      headers = {
+          ["Content-Type"] = "application/json",
+          ["Authorization"] = "<..>"
+      }
+    })
+  end
+
+  local speaker = peripheral.find("speaker")
+
+  local decoder = require("cc.audio.dfpwm").make_decoder()
+  local play = true
+
+  parallel.waitForAny(
+    function ()
+      while decoder do
+        local chunk = audioReq.read(16 * 1024)
+        if not chunk then break end
+        local decoded = decoder(chunk)
+        while not speaker.playAudio(decoded) do
+          os.pullEvent("speaker_audio_empty")
+        end
+      end
+    end,
+    function ()
+      while play do
+        event, title, artist = os.pullEvent("audio")
+        os.queueEvent("audio", title, artist)
+        print("play = false")
+        play = false
+      end
+    end
+  )
+end
 local function doLastfm(track)
   if not track["@attr"] then
       local monitor = peripheral.find("monitor")
       local width, height = monitor.getSize()
       monitor.clear()
+      os.queueEvent('audio', '', '')
+
       mf.writeOn(monitor, "Nothing is being played.", nil, nil, {font="Dogica",anchorHor="center",anchorVer="center", wrapWidth = 2 * width})
     return
   end
@@ -41,6 +102,7 @@ local function doLastfm(track)
   local album = track["album"]["#text"]
   local title = track["name"]
 
+  os.queueEvent('audio', title, artist)
   print('Displaying ' .. artist .. ' - ' .. title .. ' (on ' .. album ..')')
   local image = track["image"][1]["#text"]
 
@@ -72,6 +134,7 @@ local function doLastfm(track)
   local _, b = mf.writeOn(monitor, string.sub(title, 1, 14), nil, nil, {font="Dogica", dy = 8, anchorHor = "center", wrapWidth = 2 * width})
 
   mf.writeOn(monitor, string.sub(artist, 1, 15), nil, nil, {font="Dogica", dy = 11+b, anchorHor = "center", wrapWidth = 2 * width})
+
 end
 
 local lastTrack = nil;
@@ -95,10 +158,24 @@ local function checkTrack()
   doLastfm(track)
 end
 
-while true do
+local function updateLastfm()
+  while true do
     event, id = os.pullEvent("timer")
     if timer == id then
       checkTrack()
       timer = os.startTimer(1)
     end
+  end
 end
+
+local function playAudioEvent()
+  while true do
+    event, title, artist = os.pullEvent("audio")
+
+    parallel.waitForAll(function ()
+      playAudio(title, artist)
+    end)
+  end
+end
+
+parallel.waitForAll(updateLastfm, playAudioEvent)