export class LocationsDataStore {
	static rememberAll(location_list) {
		let locations = LocationsDataStore.get();
		for (let location of location_list) {
			locations[location.id] = location;
		}
		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") || {};
	}

	static set(value) {
		DataStore.set("locations", value);
	}
}

export class RecentLocationsDataStore {
	static remember(location_id) {
		let recent_locations = RecentLocationsDataStore.get();
		recent_locations = recent_locations.filter((item) => {
			return item != location_id;
		});
		recent_locations.push(location_id);
		RecentLocationsDataStore.set(recent_locations);
	}

	static get() {
		return DataStore.get("recent-locations") || [];
	}

	static set(value) {
		DataStore.set("recent-locations", value);
	}
}

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));
	}

	static set(key, value) {
		window.localStorage.setItem(key, JSON.stringify(value));
	}

	static locations = LocationsDataStore;
	static recent_locations = RecentLocationsDataStore;
	static tracked_trips = TrackedTripsDataStore;
	static trips = TripsDataStore;
}