Improve datastore about cached trip details

web/datastore.js

@@ -7,6 +7,16 @@ export class LocationsDataStore {
 		LocationsDataStore.set(locations);
 	}
 
+	static rememberAllIfNotExist(location_list) {
+		let locations = LocationsDataStore.get();
+		for (let location of location_list) {
+			if (!(location.id in locations)) {
+				locations[location.id] = location;
+			}
+		}
+		LocationsDataStore.set(locations);
+	}
+
 	static get() {
 		return DataStore.get("locations") || {};
 	}
@@ -16,7 +26,6 @@ export class LocationsDataStore {
 	}
 }
 
-
 export class RecentLocationsDataStore {
 	static remember(location_id) {
 		let recent_locations = RecentLocationsDataStore.get();
@@ -36,6 +45,48 @@ export class RecentLocationsDataStore {
 	}
 }
 
+export class TrackedTripsDataStore {
+	static remember(trip_id, origin_id, destination_id) {
+		let tracked_trips = TrackedTripsDataStore.get();
+		tracked_trips.push({
+			trip: trip_id,
+			origin: origin_id,
+			destination: destination_id,
+		});
+		TrackedTripsDataStore.set(tracked_trips);
+	}
+
+	static get() {
+		return DataStore.get("tracked-trips") || [];
+	}
+
+	static set(value) {
+		DataStore.set("tracked-trips", value);
+	}
+}
+
+export class TripsDataStore {
+	static remember(trip) {
+		TripsDataStore.rememberAll([trip]);
+	}
+
+	static rememberAll(trip_list) {
+		let tracked_trips = TripsDataStore.get();
+		for (let trip of trip_list) {
+			tracked_trips[trip.id] = trip;
+		}
+		TripsDataStore.set(tracked_trips);
+	}
+
+	static get() {
+		return DataStore.get("trips") || {};
+	}
+
+	static set(value) {
+		DataStore.set("trips", value);
+	}
+}
+
 export class DataStore {
 	static get(key) {
 		return JSON.parse(window.localStorage.getItem(key));
@@ -47,4 +98,6 @@ export class DataStore {
 
 	static locations = LocationsDataStore;
 	static recent_locations = RecentLocationsDataStore;
+	static tracked_trips = TrackedTripsDataStore;
+	static trips = TripsDataStore;
 }