From 5d96adb424d640f5a50cb909f58716137b5bf014 Mon Sep 17 00:00:00 2001
From: Ollo <Ollo@host>
Date: Mon, 1 Nov 2021 13:01:40 +0100
Subject: [PATCH] Only temperature is display; time is killed

---
 main.lua |  7 +++++++
 mqtt.lua | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/main.lua b/main.lua
index 851a463..2c28db4 100644
--- a/main.lua
+++ b/main.lua
@@ -61,6 +61,13 @@ function displayTime()
         local c = dw.countChars(words)
         dw.generateLEDs(rgbBuffer, words, colorBg, color, color1, color2, color3, color4, invertRows, c)
      end
+     if (mqttDispTemp ~= nil) then
+	local tw, tcol  = mqttDispTemp(dw, rgbBuffer, invertRows)
+	if ( (tw ~= nil) and (tcol ~= nil) ) then
+	  local c1 = dw.countChars(tw)
+          dw.generateLEDs(rgbBuffer, tw, nil, tcol, nil, nil, nil, nil, invertRows, c1)
+	end
+     end
      dw = nil
      collectgarbage()
      print("dw: " .. tostring(node.heap()))
diff --git a/mqtt.lua b/mqtt.lua
index 04b884e..27f2da8 100644
--- a/mqtt.lua
+++ b/mqtt.lua
@@ -3,6 +3,7 @@ local m=nil
 local mqttConnected = false
 -- Temp:
 local t=nil
+local dispTemp=10
 
 function handleSingleCommand(client, topic, data)
     if (data == "ON") then
@@ -105,16 +106,71 @@ function reConnectMqtt()
  end
 end
 
+-- Logic to display Mqtt
+function mqttDispTemp(dw, rgbBuffer, invertRows)
+if (dispTemp ~= nil) then
+   -- Values: it, is, 5 minutes, 10 minutes, afer, before, three hour, quarter, dreiviertel, half, s
+   --  hours: one, one Long, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
+   -- Special ones: twenty, clock, minute 1 flag, minute 2 flag, minute 3 flag, minute 4 flag
+   local ret = { it=0, is=0, m5=0, m10=0, ha=0, hb=0, h3=0, hq=0, h3q=0, half=0, s=0, 
+               h1=0, h1l=0, h2=0, h3=0, h4=0, h5=0, h6=0, h7=0, h8=0, h9=0, h10=0, h11=0, h12=0,
+               m20=0, cl=0, m1=0, m2=0, m3=0, m4=0 }
+
+   print("Mqtt Display of temperature: " .. tostring(dispTemp) )
+   if (dispTemp == 1) or (dispTemp == -1) then
+     ret.h1=1
+   elseif (dispTemp == 2) or (dispTemp == -2) then
+     ret.h2=1
+   elseif (dispTemp == 3) or (dispTemp == -3) then
+     ret.h3=1
+   elseif (dispTemp == 4) or (dispTemp == -4) then
+     ret.h4=1
+   elseif (dispTemp == 5) or (dispTemp == -5) then
+     ret.h5=1
+   elseif (dispTemp == 6) or (dispTemp == -6) then
+     ret.h6=1
+   elseif (dispTemp == 7) or (dispTemp == -7) then
+     ret.h7=1
+   elseif (dispTemp == 8) or (dispTemp == -8) then
+     ret.h8=1
+   elseif (dispTemp == 9) or (dispTemp == -9) then
+     ret.h9=1
+   elseif (dispTemp == 10) or (dispTemp == -10) then
+     ret.h10=1
+   elseif (dispTemp == 11) or (dispTemp == -11) then
+     ret.h11=1
+   elseif (dispTemp == 12) or (dispTemp == -12) then
+     ret.h12=1
+   else
+	   -- over or under temperature
+   end
+   local col=string.char(128,0,0) -- red; positive degrees
+   if (dispTemp < 0) then
+	col=string.char(0,0,128) -- blue; negative degrees
+   end
+   return ret, col
+else
+   return nil, nil
+end
+
+end
+
 -- MQTT extension
 function registerMqtt()
     m = mqtt.Client("wordclock", 120)
     -- on publish message receive event
     m:on("message", function(client, topic, data)
-      print(topic .. ":" )
+      print("MQTT " .. topic .. ":" )
       if data ~= nil then
         print(data)
         if (topic == (mqttPrefix .. "/cmd/single")) then
             handleSingleCommand(client, topic, data)
+	elseif (topic == (mqttPrefix .. "/cmd/temp")) then
+	    if ( data == "" ) then
+		    dispTemp = nil
+	    else
+		    dispTemp = tonumber(data)
+	    end
         else
             -- Handle here the /cmd/# sublevel
             if (string.match(topic, "telnet$")) then