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class EventLogView extends EventEmitter {
constructor(store, live){
super();
this._store = store;
this.live = live;
this.log = [];
this.add = this.add.bind(this);
if(live){
this._store.addListener("new_entry", this.add);
}
}
close() {
this._store.removeListener("new_entry", this.add);
}
getAll() {
return this.log;
}
add(entry){
this.log.push(entry);
this.emit("change");
}
add_bulk(messages){
var log = messages;
var last_id = log[log.length-1].id;
var to_add = _.filter(this.log, entry => entry.id > last_id);
this.log = log.concat(to_add);
this.emit("change");
}
}
class _EventLogStore extends EventEmitter {
getView(since){
var view = new EventLogView(this, !since);
//TODO: Really do bulk retrieval of last messages.
window.setTimeout(function(){
view.add_bulk([
{ id:1, message: "Hello World"},
{ id:2, message: "I was already transmitted as an event."}
]);
}, 100);
var id = 2;
view.add({id:id++, message: "I was already transmitted as an event."});
view.add({id:id++, message: "I was only transmitted as an event before the bulk was added.."});
window.setInterval(function(){
view.add({id: id++, message: "."});
}, 1000);
return view;
}
handle(action) {
switch (action.actionType) {
case ActionTypes.EVENTLOG_ADD:
this.emit("new_message", action.message);
break;
default:
return;
}
}
}
var EventLogStore = new _EventLogStore();
AppDispatcher.register(EventLogStore.handle.bind(EventLogStore));
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