var Timer irrigationTimer = null


rule "When system started"
when
    System started
then
    sendBroadcastNotification("System restarted, Irrigiation system reset")
    gIrrigation.sendCommand(OFF)

end

rule "Solar Offline"
when
    Item Irrigation_Online changed to OFF
then
    sendBroadcastNotification("Garden Solar Grid Offline")
end

rule "Solar Online"
when
    Item Irrigation_Online changed to ON
then
    sendBroadcastNotification("Garden Solar Grid Online")
end

rule "Irrigation Part 1"
when
    Item Irrigation_Start received command ON
then
if(Irrigation_Zone_1_Auto.state == ON) 
    {   Irrigation_Zone_1.sendCommand(ON)
        Irrigation_Pump1.sendCommand(ON)
        Irrigation_Curr.postUpdate(1)
        val Integer TIME1 = (Irrigation_Zone_1_Time.state as DecimalType).intValue
        irrigationTimer = createTimer(now.plusMinutes(TIME1), [|
        Irrigation_Pump1.sendCommand(OFF)
        Irrigation_Zone_1.sendCommand(OFF)
        Irrigation_Curr.postUpdate(0)
        Irrigation_Start_2.sendCommand(ON)
        ])
      
 }
else
{ Irrigation_Start_2.sendCommand(ON) }

end

rule "Irrigation Part 2"
when
    Item Irrigation_Start_2 received command ON
then
if(Irrigation_Zone_2_Auto.state == ON) 
    {   Irrigation_Pump1.sendCommand(ON)
        Irrigation_Zone_2.sendCommand(ON)
        Irrigation_Curr.postUpdate(2)
        val Integer TIME2 = (Irrigation_Zone_2_Time.state as DecimalType).intValue
        irrigationTimer = createTimer(now.plusMinutes(TIME2), [|
        Irrigation_Pump1.sendCommand(OFF)
        Irrigation_Zone_2.sendCommand(OFF)
        Irrigation_Curr.postUpdate(0)
        Irrigation_Start_3.sendCommand(ON)
        ])
 }
else
{ Irrigation_Start_3.sendCommand(ON) }

end

rule "Irrigation Part 3"
when
    Item Irrigation_Start_3 received command ON
then
if(Irrigation_Zone_3_Auto.state == ON) 
    {   Irrigation_Pump1.sendCommand(ON)
        Irrigation_Zone_3.sendCommand(ON)
        Irrigation_Curr.postUpdate(3)
        val Integer TIME3 = (Irrigation_Zone_2_Time.state as DecimalType).intValue
        irrigationTimer = createTimer(now.plusMinutes(TIME3), [|
        Irrigation_Pump1.sendCommand(OFF)
        Irrigation_Zone_3.sendCommand(OFF)
        Irrigation_Curr.postUpdate(0)
        Irrigation_Start.sendCommand(OFF)
        ])
 }
else
{ Irrigation_Start.sendCommand(OFF) }

end

rule "Cancel Irrigation"
when
    Item Irrigation_Start received command OFF
then
    gIrrigation.sendCommand(OFF)
    Irrigation_Curr.postUpdate(0)
    irrigationTimer?.cancel
    irrigationTimer = null
    
    
end

rule "Water usage"
when
    Item gIrrigation_Times changed
then
    Water_Use.postUpdate(((gIrrigation_Times.state as Number) * 3.7).intValue)
end

rule "Daily watering at dusk"
when
    Channel "astro:sun:home:civilDusk#event" triggered START
then
    if ( Irrigation_Auto.state == ON && (RecentRainVolume.state as Number) <= 10 ) {

    Irrigation_Start.sendCommand(ON)
    sendBroadcastNotification("Auto Irrigation has commenced")
    }

else
logInfo("default.rules", "Irrigation did not start at dusk, either Auto is OFF or Daily rain was more than 10mm")
end