From 9763f4b5739ce7051c21ddd3cf97f835e1169f7a Mon Sep 17 00:00:00 2001
From: Ollo <Ollo@host>
Date: Fri, 15 Jan 2021 19:28:20 +0100
Subject: [PATCH] Publish current background color

---
 mqtt.lua | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/mqtt.lua b/mqtt.lua
index 8b6ce5c..350551f 100644
--- a/mqtt.lua
+++ b/mqtt.lua
@@ -10,6 +10,9 @@ function handleSingleCommand(client, topic, data)
       briPercent=0
       m:publish(mqttPrefix .. "/clock", "OFF", 0, 0)
     elseif ((data:sub(1,1) == "#" and data:len() == 7) or (string.match(data, "%d+,%d+,%d+"))) then
+      local red=0
+      local green=0
+      local blue=0
       if (data:sub(1,1) == "#") then
         red = tonumber(data:sub(2,3), 16)
         green = tonumber(data:sub(4,5), 16)
@@ -17,8 +20,9 @@ function handleSingleCommand(client, topic, data)
       else
         red, green, blue = string.match(data, "(%d+),(%d+),(%d+)")
       end
-      colorBg=string.char(green* briPercent / 100, red * briPercent / 100, blue * briPercent / 100)
+      colorBg=string.char(red* briPercent / 100, green * briPercent / 100, blue * briPercent / 100)
       print("Updated BG: " .. tostring(red) .. "," .. tostring(green) .. "," .. tostring(blue) )
+      m:publish(mqttPrefix .. "/background", tostring(red) .. "," .. tostring(green) .. "," .. tostring(blue), 0, 0)
       if (displayTime~= nil) then
         displayTime()
       end
@@ -67,6 +71,10 @@ function registerMqtt()
       tmr.alarm(3, 1000, 0, function() 
 	      -- publish a message with data = hello, QoS = 0, retain = 0
 	      client:publish(mqttPrefix .. "/ip", tostring(wifi.sta.getip()), 0, 0)
+          local red = string.byte(colorBg,1)
+          local green = string.byte(colorBg,2)
+          local blue = string.byte(colorBg,3)
+          client:publish(mqttPrefix .. "/background", tostring(red) .. "," .. tostring(green) .. "," .. tostring(blue), 0, 0)
       end)
     end,
     function(client, reason)