From 6315f32f1b4853c8463d42748d341e8ab42e8c5e Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 11 Apr 2019 19:24:04 +0100
Subject: Typesafe events

---
 scripts/toy.groovy | 70 ++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 50 insertions(+), 20 deletions(-)

(limited to 'scripts')

diff --git a/scripts/toy.groovy b/scripts/toy.groovy
index e85b83e..00e7652 100644
--- a/scripts/toy.groovy
+++ b/scripts/toy.groovy
@@ -216,28 +216,52 @@ return new Object() {
 	void setAway(String a) { save("toy.owner.away", a) }
 	int randRange(int min, int max) { min + getRandom(1 + max - min) }
 	int randRange(double min, double max) { randRange((int)min, (int)max) }
-	def loadEvents = {
-		return (loadMap("toy.events") ?: [:]);
+
+	// Events
+	static class Event {
+		int time;
+		String func;
+		Object arg;
+		def map = {
+			[
+				time: time,
+				func: func,
+				arg: arg
+			]
+		}
+	}
+
+	static class NamedEvent {
+		String name;
+		Event event;
 	}
-	def saveEvents = { events ->
-		save("toy.events", events);
+
+	Map<String, Event> loadEvents() {
+		return (loadMap("toy.events") ?: [:])
+			.collectEntries { k, v -> [ k, new Event(v) ] };
 	}
-	def nextEvent = { events ->
-		def first = null;
-		events.each{ k, v ->
+
+	void saveEvents(Map<String, Event> events) {
+		save("toy.events", events.collectEntries { k, v -> [ k, v.map() ] });
+	}
+
+	NamedEvent nextEvent(Map<String, Event> events) {
+		NamedEvent first = null;
+		events.each{ String k, Event v ->
 			if (!first || first.event.time > v.time) {
-				first = [ name: k, event: v ];
+				first = new NamedEvent(name: k, event: v);
 			}
 		};
 		return first;
-	};
-	def setEvent = { events, name, time, func, arg = null ->
+	}
+
+	boolean setEvent(Map<String, Event> events, String name, int time, String func, Object arg = null) {
 		if (namedEvents.containsKey(func)) {
-			events[name] = [
+			events[name] = new Event(
 				time: time,
 				func: func,
 				arg: arg
-			];
+			);
 			saveEvents(events);
 			return true;
 		}
@@ -245,23 +269,28 @@ return new Object() {
 			showPopup("No such event $func");
 			return false;
 		}
-	};
-	def addEvent = { name, time, func, arg = null ->
+	}
+
+	boolean addEvent(String name, int time, String func, Object arg = null) {
 		def events = loadEvents();
 		return setEvent(events, name, time, func, arg);
 	}
-	def addEventIfMissing = { name, time, func, arg = null ->
+
+	boolean addEventIfMissing(String name, int time, String func, Object arg = null) {
 		def events = loadEvents();
 		if (!events.containsKey(name)) {
 			return setEvent(events, name, time, func, arg);
 		}
-	};
-	def removeEvent = { name ->
+		return false;
+	}
+
+	void removeEvent(String name) {
 		def events = loadEvents();
 		events.remove(name);
 		saveEvents(events);
-	};
-	def execEvents = { rt ->
+	}
+
+	void execEvents(boolean rt) {
 		for (def e = nextEvent(loadEvents()); e && e.event.time <= getTime(); e = nextEvent(loadEvents())) {
 			def f = namedEvents[e.event.func];
 			removeEvent(e.name);
@@ -269,7 +298,8 @@ return new Object() {
 				f(e.name, e.event.arg, e.event.time, rt);
 			}
 		}
-	};
+	}
+
 	def sessionAborted = null;
 	def sessionToys = [:];
 	def gagText = { t, p ->
-- 
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