Rename file and remove filtering which was implemented to pot-plugin (HIMAN-359)

Author: mpartio

himan-scripts/pot-limit-values.lua

@@ -0,0 +1,29 @@
+--
+-- Limit the value of POT to max 29% during winter time.
+-- 30% is the threshold that will show lightning in the
+-- weather symbol and we don't want to predict
+-- lightning in the winter (in Scandinavia).
+--
+
+local POT = luatool:Fetch(current_time, level(HPLevelType.kHeight, 0), param("POT-PRCNT"), current_forecast_type)
+
+if not POT then
+  return
+end
+
+local m = tonumber(current_time:GetValidDateTime():String("%m"))
+
+-- winter is november to march
+if m >= 11 or m <= 3 then
+  for i=1, #POT do
+    local pot = POT[i]
+
+    if pot == pot then
+      POT[i] = math.min(29, pot)
+    end
+  end
+end
+
+result:SetParam(param("POT-PRCNT"))
+result:SetValues(POT)
+luatool:WriteToFile(result)