1 files changed, 61 insertions, 0 deletions
diff --git a/diller/mq.lua b/diller/mq.lua
new file mode 100644
index 0000000..0b4a884
--- /dev/null
+++ b/diller/mq.lua
@@ -0,0 +1,61 @@
+local P = {}
+local m, topic, cid
+
+local function p(msg)
+  print("MQTT: "..msg)
+end
+
+local function mq_client_connected(con)
+  p("connected")
+end
+
+function mq_on_timer()
+  -- This crashes the module:
+  -- local status = wifi.sta.status()
+  -- p("checking status, status="..status)
+
+  local status = wifi.sta.getip()
+
+  if status and status ~= "0.0.0.0" then
+    if not m then
+      p("connecting")
+
+      -- client id, keepalive, username, password
+      m = mqtt.Client(cid, 120)
+      -- m:on("connect", mq_connected)
+      m:on("offline", function() m:close(); m = nil end)
+
+      -- host, port, secure, auto_reconnect, function(client), ssl=8883
+      m:connect("trygvis.io", 1883, 0, 0, mq_client_connected)
+    end
+  else
+    if m then
+      p("Lost wifi connection, disconnecting")
+      m:close()
+      m = nil
+    end
+  end
+end
+
+function P.init(timer_id, client_id)
+  cid = client_id
+
+  topic = "/esp8266/"..client_id
+
+  tmr.alarm(timer_id, 3 * 1000, 1, mq_on_timer)
+end 
+
+function P.publish(path, payload)
+  if not m then
+	print("Not connected, dropping message to "..path)
+	return
+  end
+
+  path = topic.."/"..path
+  print("path="..path)
+  m:publish(path, payload, 0, 0)
+
+  return true, "yo?"
+end
+
+return P