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import {
DiscoverEventsSortBy,
EventCategory,
EventSummary,
HomeFilterPrivacyLevel,
HomeFiltersDraft,
LocationSuggestion,
} from '@/models/event';
import { FavoriteLocation } from '@/models/favorite';
import { ApiError } from '@/services/api';
import { getCurrentLocationSuggestion } from '@/services/deviceLocationService';
import { listCategories, listEvents, searchLocation } from '@/services/eventService';
import { listFavoriteLocations } from '@/services/favoriteService';
import {
getHomeLocationSelection,
setHomeLocationSelection,
} from '@/services/homeLocationSelectionStore';
import { getMyProfile } from '@/services/profileService';
import { formatEventLocation } from '@/utils/eventLocation';
import { useAuth } from '@/contexts/AuthContext';
const PAGE_SIZE = 2;
const MAX_FAVORITE_LOCATION_OPTIONS = 3;
const DEFAULT_LOCATION = {
lat: 41.0422,
lon: 29.0083,
};
const DEFAULT_LOCATION_LABEL = 'Beşiktaş, Istanbul';
const FALLBACK_LOCATION: LocationSuggestion = {
display_name: DEFAULT_LOCATION_LABEL,
lat: String(DEFAULT_LOCATION.lat),
lon: String(DEFAULT_LOCATION.lon),
};
const DEFAULT_FILTERS: HomeFiltersDraft = {
categoryIds: [],
privacyLevels: [],
startDate: '',
endDate: '',
radiusKm: 10,
sortBy: 'START_TIME',
};
type DefaultLocationSource = 'PROFILE' | 'LIVE' | 'FALLBACK';
interface HomeLocationOption {
id: string;
title: string;
subtitle: string;
suggestion: LocationSuggestion;
}
function excludeInProgressEvents(items: EventSummary[]): EventSummary[] {
return items.filter((e) => e.status !== 'IN_PROGRESS');
}
function profileToSelectedLocation(profile: {
default_location_address: string | null;
default_location_lat: number | null;
default_location_lon: number | null;
}): LocationSuggestion | null {
if (
!profile.default_location_address ||
profile.default_location_lat == null ||
profile.default_location_lon == null
) {
return null;
}
return {
display_name: profile.default_location_address,
lat: String(profile.default_location_lat),
lon: String(profile.default_location_lon),
};
}
function favoriteLocationToSuggestion(location: FavoriteLocation): LocationSuggestion {
return {
display_name: location.address,
lat: String(location.lat),
lon: String(location.lon),
};
}
function sortFavoriteLocations(locations: FavoriteLocation[]): FavoriteLocation[] {
return [...locations].sort((left, right) => {
const nameComparison = left.name.localeCompare(
right.name,
undefined,
{ sensitivity: 'base' },
);
Eif (nameComparison !== 0) {
return nameComparison;
}
return left.id.localeCompare(right.id);
});
}
function getFavoriteLocationsErrorMessage(error: unknown): string {
if (error instanceof ApiError && error.status === 401) {
return 'You must be logged in to view favorite locations.';
}
if (error instanceof ApiError) {
return error.message;
}
return 'Failed to load favorite locations. Please try again.';
}
function getDefaultLocationSubtitle(
source: DefaultLocationSource,
location: LocationSuggestion | null,
isResolving: boolean,
): string {
if (!location) {
return isResolving ? 'Resolving your location...' : 'Location unavailable.';
}
if (source === 'LIVE') {
return location.display_name === 'Current location'
? 'Using your current live location.'
: `Current location: ${location.display_name}`;
}
return location.display_name;
}
function locationsMatch(
left: LocationSuggestion | null,
right: LocationSuggestion | null,
): boolean {
Iif (!left && !right) return true;
Iif (!left || !right) return false;
return left.lat === right.lat && left.lon === right.lon;
}
function parseStrictDateToIso(
value: string,
boundary: 'start' | 'end',
): string | undefined {
if (!value) return undefined;
const match = value.match(/^(\d{2})\.(\d{2})\.(\d{4})$/);
Iif (!match) return undefined;
const [, dayText, monthText, yearText] = match;
const day = Number(dayText);
const month = Number(monthText);
const year = Number(yearText);
Iif (!day || !month || !year) return undefined;
Iif (month < 1 || month > 12) return undefined;
const daysInMonth = new Date(year, month, 0).getDate();
Iif (day < 1 || day > daysInMonth) return undefined;
const date = new Date(
year,
month - 1,
day,
boundary === 'start' ? 0 : 23,
boundary === 'start' ? 0 : 59,
boundary === 'start' ? 0 : 59,
boundary === 'start' ? 0 : 999,
);
Iif (
Number.isNaN(date.getTime()) ||
date.getFullYear() !== year ||
date.getMonth() !== month - 1 ||
date.getDate() !== day
) {
return undefined;
}
return date.toISOString();
}
function parseStrictDate(value: string): Date | null {
Iif (!value) return null;
const match = value.match(/^(\d{2})\.(\d{2})\.(\d{4})$/);
Iif (!match) return null;
const [, dayText, monthText, yearText] = match;
const day = Number(dayText);
const month = Number(monthText);
const year = Number(yearText);
Iif (!day || !month || !year) return null;
if (month < 1 || month > 12) return null;
const daysInMonth = new Date(year, month, 0).getDate();
if (day < 1 || day > daysInMonth) return null;
const date = new Date(year, month - 1, day);
Iif (
Number.isNaN(date.getTime()) ||
date.getFullYear() !== year ||
date.getMonth() !== month - 1 ||
date.getDate() !== day
) {
return null;
}
date.setHours(0, 0, 0, 0);
return date;
}
function validateFilterDates(filters: HomeFiltersDraft): string | null {
const { startDate, endDate } = filters;
const today = new Date();
today.setHours(0, 0, 0, 0);
if (startDate) {
const parsedStart = parseStrictDate(startDate);
if (!parsedStart) {
return 'From date must be a valid date.';
}
if (parsedStart < today) {
return 'From date must be today or later.';
}
}
if (endDate) {
const parsedEnd = parseStrictDate(endDate);
if (!parsedEnd) {
return 'To date must be a valid date.';
}
Iif (parsedEnd < today) {
return 'To date must be today or later.';
}
}
if (startDate && endDate) {
const parsedStart = parseStrictDate(startDate);
const parsedEnd = parseStrictDate(endDate);
if (parsedStart && parsedEnd && parsedEnd < parsedStart) {
return 'To date must be the same as or later than From date.';
}
}
return null;
}
function validateFilterDatesLive(filters: HomeFiltersDraft): string | null {
const { startDate, endDate } = filters;
const today = new Date();
today.setHours(0, 0, 0, 0);
const validateSingle = (
value: string,
label: 'From' | 'To',
): string | null => {
if (!value) return null;
const digits = value.replace(/\D/g, '');
Eif (digits.length >= 2) {
const day = Number(digits.slice(0, 2));
Iif (day < 1 || day > 31) {
return `${label} date day must be between 01 and 31.`;
}
}
Eif (digits.length >= 4) {
const month = Number(digits.slice(2, 4));
if (month < 1 || month > 12) {
return `${label} date month must be between 01 and 12.`;
}
}
Iif (value.length < 10) return null;
const parsed = parseStrictDate(value);
if (!parsed) {
return `${label} date must be a valid date.`;
}
if (parsed < today) {
return `${label} date must be today or later.`;
}
return null;
};
const startError = validateSingle(startDate, 'From');
if (startError) return startError;
const endError = validateSingle(endDate, 'To');
if (endError) return endError;
if (startDate.length === 10 && endDate.length === 10) {
const parsedStart = parseStrictDate(startDate);
const parsedEnd = parseStrictDate(endDate);
if (parsedStart && parsedEnd && parsedEnd < parsedStart) {
return 'To date must be the same as or later than From date.';
}
}
return null;
}
export interface HomeViewModel {
locationLabel: string;
locationQuery: string;
locationSuggestions: LocationSuggestion[];
isSearchingLocation: boolean;
isLocationModalOpen: boolean;
pendingLocation: LocationSuggestion | null;
defaultLocationOption: {
title: string;
subtitle: string;
suggestion: LocationSuggestion | null;
isLoading: boolean;
};
favoriteLocationOptions: Array<{
id: string;
title: string;
subtitle: string;
suggestion: LocationSuggestion;
}>;
isLoadingFavoriteLocations: boolean;
favoriteLocationsError: string | null;
categories: readonly EventCategory[];
selectedCategoryId: number | null;
searchText: string;
events: EventSummary[];
isLoading: boolean;
isLoadingMore: boolean;
isRefreshing: boolean;
apiError: string | null;
hasMore: boolean;
isFilterModalOpen: boolean;
filterDraft: HomeFiltersDraft;
filterError: string | null;
updateSearchText: (value: string) => void;
submitSearch: () => void;
selectCategory: (categoryId: number | null) => void;
openFilterModal: () => void;
closeFilterModal: () => void;
resetFilterDraft: () => void;
applyFilterDraft: () => void;
toggleDraftCategory: (categoryId: number) => void;
toggleDraftPrivacy: (privacy: HomeFilterPrivacyLevel) => void;
updateDraftStartDate: (value: string) => void;
updateDraftEndDate: (value: string) => void;
updateDraftRadiusKm: (value: number) => void;
updateDraftSortBy: (
value: Extract<DiscoverEventsSortBy, 'START_TIME' | 'DISTANCE'>,
) => void;
loadMoreEvents: () => Promise<void>;
refreshEvents: () => Promise<void>;
silentRefresh: () => Promise<void>;
openLocationModal: () => void;
closeLocationModal: () => void;
updateLocationQuery: (value: string) => void;
selectSavedLocationOption: (suggestion: LocationSuggestion) => void;
selectLocationSuggestion: (suggestion: LocationSuggestion) => void;
applySelectedLocation: () => void;
resetLocationDraft: () => void;
retryFavoriteLocations: () => Promise<void>;
}
export function useHomeViewModel(): HomeViewModel {
const { token, user } = useAuth();
const locationSelectionScope = user?.id ?? token ?? 'anonymous';
const storedLocationSelection = getHomeLocationSelection(locationSelectionScope);
const [categories, setCategories] = useState<EventCategory[]>([]);
const [events, setEvents] = useState<EventSummary[]>([]);
const [searchText, setSearchText] = useState('');
const [locationQuery, setLocationQuery] = useState('');
const [locationSuggestions, setLocationSuggestions] = useState<LocationSuggestion[]>([]);
const [isSearchingLocation, setIsSearchingLocation] = useState(false);
const [isLocationModalOpen, setIsLocationModalOpen] = useState(false);
const [selectedLocation, setSelectedLocation] = useState<LocationSuggestion | null>(
storedLocationSelection.mode === 'CUSTOM'
? storedLocationSelection.location
: null,
);
const [defaultLocation, setDefaultLocation] = useState<LocationSuggestion | null>(null);
const [defaultLocationSource, setDefaultLocationSource] =
useState<DefaultLocationSource>('FALLBACK');
const [pendingLocation, setPendingLocation] = useState<LocationSuggestion | null>(null);
const [favoriteLocations, setFavoriteLocations] = useState<FavoriteLocation[]>([]);
const [isLoadingFavoriteLocations, setIsLoadingFavoriteLocations] = useState(true);
const [favoriteLocationsError, setFavoriteLocationsError] = useState<string | null>(null);
const locationSearchTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
const searchTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
const [filterError, setFilterError] = useState<string | null>(null);
const [appliedSearchText, setAppliedSearchText] = useState('');
const [selectedCategoryId, setSelectedCategoryId] = useState<number | null>(null);
const [appliedFilters, setAppliedFilters] =
useState<HomeFiltersDraft>(DEFAULT_FILTERS);
const [filterDraft, setFilterDraft] =
useState<HomeFiltersDraft>(DEFAULT_FILTERS);
const [isFilterModalOpen, setIsFilterModalOpen] = useState(false);
const [nextCursor, setNextCursor] = useState<string | null>(null);
const [hasMore, setHasMore] = useState(false);
const [isLoading, setIsLoading] = useState(true);
const [isLoadingMore, setIsLoadingMore] = useState(false);
const [isRefreshing, setIsRefreshing] = useState(false);
const [apiError, setApiError] = useState<string | null>(null);
const [isLocationContextReady, setIsLocationContextReady] = useState(false);
const [isResolvingDefaultLocation, setIsResolvingDefaultLocation] = useState(true);
const syncSelectedLocationWithDefault = useCallback(
(resolvedDefaultLocation: LocationSuggestion) => {
const persistedSelection = getHomeLocationSelection(locationSelectionScope);
if (
persistedSelection.mode === 'CUSTOM' &&
persistedSelection.location
) {
setSelectedLocation(persistedSelection.location);
return persistedSelection.location;
}
setSelectedLocation(resolvedDefaultLocation);
return resolvedDefaultLocation;
},
[locationSelectionScope],
);
const persistLocationSelection = useCallback(
(
mode: 'DEFAULT' | 'CUSTOM',
location: LocationSuggestion | null,
) => {
setHomeLocationSelection(locationSelectionScope, {
mode,
location: mode === 'CUSTOM' ? location : null,
});
},
[locationSelectionScope],
);
useEffect(() => {
const persistedSelection = getHomeLocationSelection(locationSelectionScope);
setSelectedLocation(
persistedSelection.mode === 'CUSTOM'
? persistedSelection.location
: null,
);
}, [locationSelectionScope]);
const resolveDefaultLocation = useCallback(async () => {
setIsResolvingDefaultLocation(true);
if (!token) {
setDefaultLocation(FALLBACK_LOCATION);
setDefaultLocationSource('FALLBACK');
syncSelectedLocationWithDefault(FALLBACK_LOCATION);
setIsLocationContextReady(true);
setIsResolvingDefaultLocation(false);
return FALLBACK_LOCATION;
}
try {
const liveLocation = await getCurrentLocationSuggestion();
if (liveLocation) {
setDefaultLocation(liveLocation);
setDefaultLocationSource('LIVE');
syncSelectedLocationWithDefault(liveLocation);
return liveLocation;
}
} catch {
// Fall through to profile and fallback location resolution.
}
try {
const profile = await getMyProfile(token);
const profileLocation = profileToSelectedLocation(profile);
if (profileLocation) {
setDefaultLocation(profileLocation);
setDefaultLocationSource('PROFILE');
syncSelectedLocationWithDefault(profileLocation);
return profileLocation;
}
} catch {
// Fall through to the hardcoded fallback location.
}
setDefaultLocation(FALLBACK_LOCATION);
setDefaultLocationSource('FALLBACK');
syncSelectedLocationWithDefault(FALLBACK_LOCATION);
return FALLBACK_LOCATION;
}, [syncSelectedLocationWithDefault, token]);
const fetchFavoriteLocations = useCallback(async () => {
if (!token) {
setFavoriteLocations([]);
setFavoriteLocationsError(null);
setIsLoadingFavoriteLocations(false);
return;
}
setIsLoadingFavoriteLocations(true);
setFavoriteLocationsError(null);
try {
const response = await listFavoriteLocations(token);
setFavoriteLocations(
sortFavoriteLocations(response.items).slice(0, MAX_FAVORITE_LOCATION_OPTIONS),
);
} catch (error) {
setFavoriteLocations([]);
setFavoriteLocationsError(getFavoriteLocationsErrorMessage(error));
} finally {
setIsLoadingFavoriteLocations(false);
}
}, [token]);
const loadCategories = useCallback(async () => {
try {
const response = await listCategories();
setCategories(response.items);
} catch {
setApiError('Failed to load categories. Please try again.');
}
}, []);
const loadEvents = useCallback(
async (
mode: 'initial' | 'refresh' | 'loadMore',
cursorOverride?: string | null,
) => {
if (!token) {
setEvents([]);
setHasMore(false);
setNextCursor(null);
setApiError('You must be logged in to view events.');
setIsLoading(false);
setIsRefreshing(false);
setIsLoadingMore(false);
return;
}
const activeLocation = selectedLocation ?? defaultLocation ?? FALLBACK_LOCATION;
try {
if (mode === 'initial') setIsLoading(true);
if (mode === 'refresh') setIsRefreshing(true);
if (mode === 'loadMore') setIsLoadingMore(true);
if (mode !== 'loadMore') {
setNextCursor(null);
setHasMore(false);
}
setApiError(null);
const combinedCategoryIds =
selectedCategoryId != null
? Array.from(
new Set([selectedCategoryId, ...appliedFilters.categoryIds]),
)
: appliedFilters.categoryIds;
const response = await listEvents(
{
lat: Number(activeLocation.lat),
lon: Number(activeLocation.lon),
radius_meters: appliedFilters.radiusKm * 1000,
q: appliedSearchText || undefined,
category_ids:
combinedCategoryIds.length > 0 ? combinedCategoryIds : undefined,
privacy_levels:
appliedFilters.privacyLevels.length > 0
? appliedFilters.privacyLevels
: undefined,
start_from: parseStrictDateToIso(appliedFilters.startDate, 'start'),
start_to: parseStrictDateToIso(appliedFilters.endDate, 'end'),
sort_by: appliedFilters.sortBy,
limit: PAGE_SIZE,
cursor:
mode === 'loadMore' ? cursorOverride ?? undefined : undefined,
},
token,
);
setHasMore(response.page_info.has_next);
setNextCursor(response.page_info.next_cursor);
const filtered = excludeInProgressEvents(response.items);
if (mode === 'loadMore') {
setEvents((prev) => [...prev, ...filtered]);
} else {
setEvents(filtered);
}
} catch {
setApiError('Failed to load events. Please try again.');
} finally {
if (mode === 'initial') setIsLoading(false);
if (mode === 'refresh') setIsRefreshing(false);
if (mode === 'loadMore') setIsLoadingMore(false);
}
},
[token, selectedLocation, defaultLocation, appliedSearchText, selectedCategoryId, appliedFilters],
);
useEffect(() => {
void loadCategories();
}, [loadCategories]);
useEffect(() => {
let isMounted = true;
setIsLocationContextReady(false);
setIsResolvingDefaultLocation(true);
void resolveDefaultLocation()
.finally(() => {
Iif (!isMounted) return;
setIsLocationContextReady(true);
setIsResolvingDefaultLocation(false);
});
return () => {
isMounted = false;
};
}, [resolveDefaultLocation]);
useEffect(() => {
void fetchFavoriteLocations();
}, [fetchFavoriteLocations]);
useEffect(() => {
if (!isLocationContextReady) return;
const timeout = setTimeout(() => {
void loadEvents('initial');
}, 300);
return () => clearTimeout(timeout);
}, [isLocationContextReady, loadEvents]);
const updateSearchText = useCallback((value: string) => {
setSearchText(value);
Iif (searchTimeoutRef.current) {
clearTimeout(searchTimeoutRef.current);
}
const trimmed = value.trim();
Iif (trimmed.length === 0) {
setAppliedSearchText('');
return;
}
Iif (trimmed.length < 2) return;
searchTimeoutRef.current = setTimeout(() => {
setAppliedSearchText(trimmed);
}, 300);
}, []);
const submitSearch = useCallback(() => {
if (searchTimeoutRef.current) {
clearTimeout(searchTimeoutRef.current);
}
setAppliedSearchText(searchText.trim());
}, [searchText]);
const selectCategory = useCallback((categoryId: number | null) => {
setSelectedCategoryId(categoryId);
}, []);
const openLocationModal = useCallback(() => {
setPendingLocation(null);
setLocationQuery('');
setLocationSuggestions([]);
setIsSearchingLocation(false);
setIsLocationModalOpen(true);
}, []);
const closeLocationModal = useCallback(() => {
Iif (locationSearchTimeoutRef.current) {
clearTimeout(locationSearchTimeoutRef.current);
locationSearchTimeoutRef.current = null;
}
setPendingLocation(null);
setLocationQuery('');
setLocationSuggestions([]);
setIsSearchingLocation(false);
setIsLocationModalOpen(false);
}, []);
const updateLocationQuery = useCallback((value: string) => {
setLocationQuery(value);
if (locationSearchTimeoutRef.current) {
clearTimeout(locationSearchTimeoutRef.current);
}
if (value.trim().length === 0) {
setPendingLocation(null);
setLocationSuggestions([]);
setIsSearchingLocation(false);
return;
}
if (value.trim().length < 2) {
setPendingLocation(null);
setLocationSuggestions([]);
setIsSearchingLocation(false);
return;
}
locationSearchTimeoutRef.current = setTimeout(async () => {
setIsSearchingLocation(true);
try {
const results = await searchLocation(value);
setLocationSuggestions(results);
} finally {
setIsSearchingLocation(false);
locationSearchTimeoutRef.current = null;
}
}, 300);
}, []);
const selectSavedLocationOption = useCallback((suggestion: LocationSuggestion) => {
Iif (locationSearchTimeoutRef.current) {
clearTimeout(locationSearchTimeoutRef.current);
locationSearchTimeoutRef.current = null;
}
setPendingLocation(suggestion);
setLocationQuery('');
setLocationSuggestions([]);
setIsSearchingLocation(false);
}, []);
const selectLocationSuggestion = useCallback((suggestion: LocationSuggestion) => {
Iif (locationSearchTimeoutRef.current) {
clearTimeout(locationSearchTimeoutRef.current);
locationSearchTimeoutRef.current = null;
}
setPendingLocation(suggestion);
setLocationQuery(suggestion.display_name);
setLocationSuggestions([]);
setIsSearchingLocation(false);
}, []);
const applySelectedLocation = useCallback(() => {
Iif (!pendingLocation) {
return;
}
const nextLocation = pendingLocation ?? defaultLocation ?? FALLBACK_LOCATION;
const followsDefault =
defaultLocation != null && locationsMatch(nextLocation, defaultLocation);
persistLocationSelection(
followsDefault ? 'DEFAULT' : 'CUSTOM',
followsDefault ? null : nextLocation,
);
setSelectedLocation(nextLocation);
setLocationSuggestions([]);
setLocationQuery('');
setIsLocationModalOpen(false);
}, [defaultLocation, pendingLocation, persistLocationSelection]);
const resetLocationDraft = useCallback(() => {
Iif (locationSearchTimeoutRef.current) {
clearTimeout(locationSearchTimeoutRef.current);
locationSearchTimeoutRef.current = null;
}
setPendingLocation(null);
setLocationQuery('');
setLocationSuggestions([]);
setIsSearchingLocation(false);
}, []);
const openFilterModal = useCallback(() => {
setFilterDraft(appliedFilters);
setFilterError(null);
setIsFilterModalOpen(true);
}, [appliedFilters]);
const closeFilterModal = useCallback(() => {
setFilterDraft(appliedFilters);
setFilterError(null);
setIsFilterModalOpen(false);
}, [appliedFilters]);
const resetFilterDraft = useCallback(() => {
setFilterDraft(DEFAULT_FILTERS);
setFilterError(null);
}, []);
const applyFilterDraft = useCallback(() => {
const validationError = validateFilterDates(filterDraft);
if (validationError) {
setFilterError(validationError);
return;
}
setFilterError(null);
setAppliedFilters(filterDraft);
setIsFilterModalOpen(false);
}, [filterDraft]);
const toggleDraftCategory = useCallback((categoryId: number) => {
setFilterDraft((prev) => {
const exists = prev.categoryIds.includes(categoryId);
return {
...prev,
categoryIds: exists
? prev.categoryIds.filter((id) => id !== categoryId)
: [...prev.categoryIds, categoryId],
};
});
}, []);
const toggleDraftPrivacy = useCallback((privacy: HomeFilterPrivacyLevel) => {
setFilterDraft((prev) => {
const exists = prev.privacyLevels.includes(privacy);
const nextDraft = {
...prev,
privacyLevels: exists ? [] : [privacy],
};
setFilterError(validateFilterDatesLive(nextDraft));
return nextDraft;
});
}, []);
const updateDraftStartDate = useCallback((value: string) => {
setFilterDraft((prev) => {
const nextDraft = {
...prev,
startDate: value,
};
setFilterError(validateFilterDatesLive(nextDraft));
return nextDraft;
});
}, []);
const updateDraftEndDate = useCallback((value: string) => {
setFilterDraft((prev) => {
const nextDraft = {
...prev,
endDate: value,
};
setFilterError(validateFilterDatesLive(nextDraft));
return nextDraft;
});
}, []);
const updateDraftRadiusKm = useCallback((value: number) => {
setFilterDraft((prev) => ({
...prev,
radiusKm: Math.round(value),
}));
}, []);
const updateDraftSortBy = useCallback((
value: Extract<DiscoverEventsSortBy, 'START_TIME' | 'DISTANCE'>,
) => {
setFilterDraft((prev) => ({
...prev,
sortBy: value,
}));
}, []);
const loadMoreEvents = useCallback(async () => {
Iif (isLoading || isLoadingMore || isRefreshing || !hasMore || !nextCursor) {
return;
}
await loadEvents('loadMore', nextCursor);
}, [
hasMore,
isLoading,
isLoadingMore,
isRefreshing,
loadEvents,
nextCursor,
]);
const refreshEvents = useCallback(async () => {
await loadEvents('refresh');
}, [loadEvents]);
const retryFavoriteLocations = useCallback(async () => {
await fetchFavoriteLocations();
}, [fetchFavoriteLocations]);
const silentRefresh = useCallback(async () => {
Iif (!token) return;
await fetchFavoriteLocations();
try {
const refreshedDefaultLocation = await resolveDefaultLocation();
const persistedSelection = getHomeLocationSelection(locationSelectionScope);
const activeLocation =
persistedSelection.mode === 'CUSTOM' && persistedSelection.location
? persistedSelection.location
: refreshedDefaultLocation;
const combinedCategoryIds =
selectedCategoryId != null
? Array.from(
new Set([selectedCategoryId, ...appliedFilters.categoryIds]),
)
: appliedFilters.categoryIds;
const response = await listEvents(
{
lat: Number(activeLocation.lat),
lon: Number(activeLocation.lon),
radius_meters: appliedFilters.radiusKm * 1000,
q: appliedSearchText || undefined,
category_ids:
combinedCategoryIds.length > 0 ? combinedCategoryIds : undefined,
privacy_levels:
appliedFilters.privacyLevels.length > 0
? appliedFilters.privacyLevels
: undefined,
start_from: parseStrictDateToIso(appliedFilters.startDate, 'start'),
start_to: parseStrictDateToIso(appliedFilters.endDate, 'end'),
sort_by: appliedFilters.sortBy,
limit: PAGE_SIZE,
},
token,
);
setHasMore(response.page_info.has_next);
setNextCursor(response.page_info.next_cursor);
setEvents(excludeInProgressEvents(response.items));
} catch {
// Silent refresh should not overwrite existing content with an error state.
} finally {
setIsResolvingDefaultLocation(false);
}
}, [
token,
fetchFavoriteLocations,
resolveDefaultLocation,
locationSelectionScope,
appliedSearchText,
selectedCategoryId,
appliedFilters,
]);
const favoriteLocationOptions: HomeLocationOption[] = favoriteLocations.map((location) => ({
id: location.id,
title: location.name,
subtitle: location.address,
suggestion: favoriteLocationToSuggestion(location),
}));
return {
locationLabel: selectedLocation
? formatEventLocation(selectedLocation.display_name)
: isResolvingDefaultLocation
? 'Locating...'
: DEFAULT_LOCATION_LABEL,
locationQuery,
categories,
selectedCategoryId,
searchText,
events,
isLoading,
isLoadingMore,
isRefreshing,
apiError,
hasMore,
isFilterModalOpen,
filterDraft,
filterError,
locationSuggestions,
isSearchingLocation,
isLocationModalOpen,
pendingLocation,
defaultLocationOption: {
title: 'Use Default Location',
subtitle: getDefaultLocationSubtitle(
defaultLocationSource,
defaultLocation,
isResolvingDefaultLocation,
),
suggestion: defaultLocation,
isLoading: isResolvingDefaultLocation && !defaultLocation,
},
favoriteLocationOptions,
isLoadingFavoriteLocations,
favoriteLocationsError,
updateSearchText,
submitSearch,
selectCategory,
openFilterModal,
closeFilterModal,
resetFilterDraft,
applyFilterDraft,
toggleDraftCategory,
toggleDraftPrivacy,
updateDraftStartDate,
updateDraftEndDate,
updateDraftRadiusKm,
updateDraftSortBy,
openLocationModal,
closeLocationModal,
updateLocationQuery,
selectSavedLocationOption,
selectLocationSuggestion,
applySelectedLocation,
resetLocationDraft,
retryFavoriteLocations,
loadMoreEvents,
refreshEvents,
silentRefresh,
};
}
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