Added Event struct which can be modified by callbacks

src/main.rs

@@ -166,9 +166,9 @@ fn get_game_score(scores: tm::MatchScore) -> Option<GameScore> {
     return Some(out);
 }
 
-fn on_score_change(notice: tm::Notice) -> Vec<MQTTMessage> {
+fn on_score_change(notice: tm::Notice, event: Event) -> (Vec<MQTTMessage>, Event) {
     match notice.match_score {
-        None => return Vec::new(),
+        None => return (Vec::new(), event),
         Some(game_scores) => {
             match get_game_score(game_scores) {
                 Some(score_json) => {
@@ -179,9 +179,9 @@ fn on_score_change(notice: tm::Notice) -> Vec<MQTTMessage> {
                         topic: arena_topic,
                         payload: serialized,
                     });
-                    return out;
+                    return (out, event);
                 },
-                None => return Vec::new(),
+                None => return (Vec::new(), event),
             }
         },
     }
@@ -192,9 +192,38 @@ fn get_next_notice() -> tm::Notice {
     return tm::Notice::default();
 }
 
-type NoticeCallback = fn(tm::Notice) -> Vec<MQTTMessage>;
+struct Event<'a> {
+    name: String,
+    divisions: Vec<Division<'a>>,
+}
+
+type NoticeCallback = fn(tm::Notice, Event) -> (Vec<MQTTMessage>, Event);
+
+struct Division<'a> {
+    name: String,
+    matches: Vec<Match>,
+    field_set: FieldSet<'a>,
+}
+
+struct FieldSet<'a> {
+    fields: Vec<Field<'a>>,
+}
+
+struct Field<'a> {
+    name: String,
+    current_match: &'a Match,
+}
+
+struct Match {
+    name: String,
+}
 
 fn main() {
+    let mut event = Event{
+        name: String::from(""),
+        divisions: Vec::new(),
+    };
+
     let mut callbacks: HashMap<tm::NoticeId, NoticeCallback> = HashMap::new();
     callbacks.insert(tm::NoticeId::NoticeRealtimeScoreChanged, on_score_change);
 
@@ -229,7 +258,8 @@ fn main() {
                 }
             },
             Some(callback) => {
-                let messages = callback(notice);
+                let (messages, next_event) = callback(notice, event);
+                event = next_event;
                 for message in messages {
                     let result = client.publish(message.topic, QoS::AtMostOnce, true, message.payload);
                     match result {