Initial commit

smartapps/dooglave/let-there-be-dark.src/let-there-be-dark.groovy

@@ -0,0 +1,49 @@
+/**
+ *  Let There Be Dark!
+ *  Turn your lights off when a Contact Sensor is opened and turn them back on when it is closed, ONLY if the Lights were previouly on.
+ *
+ *  Author: SmartThings modified by Douglas Rich
+ */
+definition(
+    name: "Let There Be Dark!",
+    namespace: "Dooglave",
+    author: "Dooglave",
+    description: "Turn your lights off when a Contact Sensor is opened and turn them back on when it is closed, ONLY if the Lights were previouly on",
+    category: "Convenience",
+    iconUrl: "https://s3.amazonaws.com/smartapp-icons/Meta/light_contact-outlet.png",
+    iconX2Url: "https://s3.amazonaws.com/smartapp-icons/Meta/light_contact-outlet@2x.png"
+)
+
+preferences {
+	section("When the door opens") {
+		input "contact1", "capability.contactSensor", title: "Where?"
+	}
+	section("Turn off a light") {
+		input "switch1", "capability.switch"
+	}
+}
+
+def installed() {
+	subscribe(contact1, "contact", contactHandler)
+	subscribe(switch1, "switch.on", switchOnHandler)
+    subscribe(switch1, "switch.off", switchOffHandler)
+}
+
+def updated() {
+	unsubscribe()
+	subscribe(contact1, "contact", contactHandler)
+	subscribe(switch1, "switch.on", switchOnHandler)
+    subscribe(switch1, "switch.off", switchOffHandler)
+}
+
+def contactHandler(evt) {
+	log.debug "$evt.value"
+	if (evt.value == "open") {
+        state.wasOn = switch1.currentValue("switch") == "on"
+		switch1.off()
+}	
+
+if (evt.value == "closed") {
+	if(state.wasOn)switch1.on()
+}
+}