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import { useCallback, useEffect, useState } from "react";
import { type PlannerSearchResult, type RoutePlan } from "../data/PlannerApi";
import { usePlanQuery } from "./usePlanQuery";
const STORAGE_KEY = "planner_last_route";
const EXPIRY_MS = 2 * 60 * 60 * 1000; // 2 hours
interface StoredRoute {
timestamp: number;
origin: PlannerSearchResult;
destination: PlannerSearchResult;
plan: RoutePlan;
searchTime?: Date;
arriveBy?: boolean;
selectedItineraryIndex?: number;
}
export function usePlanner() {
const [origin, setOrigin] = useState<PlannerSearchResult | null>(null);
const [destination, setDestination] = useState<PlannerSearchResult | null>(
null
);
const [plan, setPlan] = useState<RoutePlan | null>(null);
const [loading, setLoading] = useState(false);
const [error, setError] = useState<string | null>(null);
const [searchTime, setSearchTime] = useState<Date | null>(null);
const [arriveBy, setArriveBy] = useState(false);
const [selectedItineraryIndex, setSelectedItineraryIndex] = useState<
number | null
>(null);
const {
data: queryPlan,
isLoading: queryLoading,
error: queryError,
isFetching,
} = usePlanQuery(
origin?.lat,
origin?.lon,
destination?.lat,
destination?.lon,
searchTime ?? undefined,
arriveBy,
!!(origin && destination)
);
// Sync query result to local state and storage
useEffect(() => {
if (queryPlan) {
setPlan(queryPlan as any); // Cast because of slight type differences if any, but they should match now
if (origin && destination) {
const toStore: StoredRoute = {
timestamp: Date.now(),
origin,
destination,
plan: queryPlan as any,
searchTime: searchTime ?? new Date(),
arriveBy,
selectedItineraryIndex: selectedItineraryIndex ?? undefined,
};
localStorage.setItem(STORAGE_KEY, JSON.stringify(toStore));
}
}
}, [
queryPlan,
origin,
destination,
searchTime,
arriveBy,
selectedItineraryIndex,
]);
// Load from storage on mount
useEffect(() => {
const stored = localStorage.getItem(STORAGE_KEY);
if (stored) {
try {
const data: StoredRoute = JSON.parse(stored);
if (Date.now() - data.timestamp < EXPIRY_MS) {
setOrigin(data.origin);
setDestination(data.destination);
setPlan(data.plan);
setSearchTime(data.searchTime ? new Date(data.searchTime) : null);
setArriveBy(data.arriveBy ?? false);
setSelectedItineraryIndex(data.selectedItineraryIndex ?? null);
} else {
localStorage.removeItem(STORAGE_KEY);
}
} catch (e) {
localStorage.removeItem(STORAGE_KEY);
}
}
}, []);
const searchRoute = async (
from: PlannerSearchResult,
to: PlannerSearchResult,
time?: Date,
arriveByParam: boolean = false
) => {
setOrigin(from);
setDestination(to);
setSearchTime(time ?? new Date());
setArriveBy(arriveByParam);
setSelectedItineraryIndex(null);
};
const clearRoute = () => {
setPlan(null);
setOrigin(null);
setDestination(null);
setSearchTime(null);
setArriveBy(false);
setSelectedItineraryIndex(null);
localStorage.removeItem(STORAGE_KEY);
};
const selectItinerary = useCallback((index: number) => {
setSelectedItineraryIndex(index);
// Update storage
const stored = localStorage.getItem(STORAGE_KEY);
if (stored) {
try {
const data: StoredRoute = JSON.parse(stored);
data.selectedItineraryIndex = index;
localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
} catch (e) {
// Ignore
}
}
}, []);
const deselectItinerary = useCallback(() => {
setSelectedItineraryIndex(null);
// Update storage
const stored = localStorage.getItem(STORAGE_KEY);
if (stored) {
try {
const data: StoredRoute = JSON.parse(stored);
data.selectedItineraryIndex = undefined;
localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
} catch (e) {
// Ignore
}
}
}, []);
return {
origin,
setOrigin,
destination,
setDestination,
plan,
loading: queryLoading || (isFetching && !plan),
error: queryError ? "Failed to calculate route. Please try again." : null,
searchTime,
arriveBy,
selectedItineraryIndex,
searchRoute,
clearRoute,
selectItinerary,
deselectItinerary,
};
}
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