------------Section 1------------
local output = 1 -- choose number of outlet
local spotrebaLimit = 10 -- choose watthour limit [Wh]
local timeLimit = 10 -- choose time limit [seconds]
local recipient = "my.email@example.com"
local subject = "Output takes too much power"

---------End of Section 1---------
 
-- Global variables: _G.timestamp
 
local spotreba = 0
 
function shutDown()
 
    devices.system.SetOut{output=output, value=false}
  	devices.system.ResetCumulativeConsumption{output=output}
 
end
 
function checkTime()
  local timeNow = os.time()
  log("Porovnani casu")
  if (_G.timestamp == 0 or _G.timestamp == nil) then
    _G.timestamp = timeNow
  end
  if (timeNow - _G.timestamp >= timeLimit) then
    return true
  end
  return false
end
 
function powerMeasurement()
  log("Porovnani spotreby")
      spotreba = devices.system["output" .. output .. "_cumulatedConsumption"]

  if spotreba> spotrebaLimit then
    if checkTime() then
      shutDown()
      log("Shutdown")
    
    end
  else
    _G.timestamp = 0
  end
end
 
powerMeasurement()
log("Script Spotreba Wh started")