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import Carousel, { ICarouselInstance } from 'react-native-reanimated-carousel';
import { useSafeAreaInsets } from 'react-native-safe-area-context';
import {
ActivityIndicator,
ImageSourcePropType,
InteractionManager,
StyleSheet,
Text,
View,
} from 'react-native';
import { useFocusEffect } from '@react-navigation/native';
import { Avatar } from '@repo/ui/components/Avatar';
import { Button } from '@repo/ui/components/Button';
import { makeStyles } from '@repo/ui/themes/makeStyles';
import { useTheme } from '@repo/ui/themes/ThemeContext';
import type { Theme } from '@repo/ui/themes/types';
import { textStyles } from '@repo/ui/themes/typography';
import { REALLOCATION_DESTINATION_HOME } from '@repo/constants/request';
import { SCREENS } from '@repo/constants/screens';
import { useDisabledFeatures } from '@repo/hooks/useFlags';
import { BalloonPendingRequest } from '@/components/BalloonPendingRequest';
import BalloonRequest from '@/components/BalloonRequest';
import { useAuth } from '@/contexts/AuthContext';
import { useFabHidden, useFabStateSelector, useSetFabOffset } from '@/contexts/FabContext';
import { useRefreshNotifications } from '@/hooks/notifications/useRefreshNotifications';
import { useRegistrationData } from '@/hooks/useRegistrationData';
import { useGetRequestsWithoutPagination } from '@/hooks/useRequest';
import { SCREEN_WIDTH } from '@/utils/dimensions';
import { CACHE_TIME } from '@/constants/apis';
import type { AppStackParamList, AppStackScreenProps } from '@/types/navigation';
import { RequestCategory, RequestStatus } from '@/types/request';
const ITEM_WIDTH = SCREEN_WIDTH + 80;
interface MenuItem {
id: string;
title?: string;
subtitle?: string;
mascot: ImageSourcePropType;
path?: Exclude<keyof AppStackParamList, typeof SCREENS.REQUEST_DETAIL>;
isPending?: boolean;
pendingCount?: number;
}
const getMenuItems = (assets: Theme['assets']): MenuItem[] => [
{
id: '1',
title: 'TIME OFF',
subtitle: 'YOUR TEAMMATES WILL\nMISS YOU A LOT',
mascot: assets.timeOffMascot,
path: SCREENS.TIME_OFF,
},
{
id: '2',
title: 'REALLOCATION',
subtitle: "CHANGING YOUR SEAT DOESN'T\nCHANGE YOUR MIND",
mascot: assets.reallocationMascot,
path: SCREENS.REALLOCATION,
},
{
id: '3',
title: 'MEAL\nRESERVATION',
subtitle: 'CODING IS EASIER ON A\nFULL STOMACH',
mascot: assets.mealMascot,
path: SCREENS.MEAL_RESERVATION,
},
{
id: '4',
title: 'BOOK A ROOM',
subtitle: 'SHHH! LET KEEP SECRET\nTHING IN SECRET ROOM',
mascot: assets.bookRoomMascot,
path: SCREENS.BOOK_ROOM,
},
{
id: '5',
title: 'MAINTENANCE',
subtitle: 'THERE IS NOTHING BROKEN,\nTHAT IS JUST A FEATURE',
mascot: assets.maintenanceMascot,
path: SCREENS.MAINTENANCE,
},
];
const SCREEN_CATEGORY_MAP: Partial<Record<string, RequestCategory>> = {
[SCREENS.TIME_OFF]: RequestCategory.TIME_OFF,
[SCREENS.REALLOCATION]: RequestCategory.REALLOCATION,
[SCREENS.MEAL_RESERVATION]: RequestCategory.MEAL_RESERVATION,
[SCREENS.BOOK_ROOM]: RequestCategory.BOOK_ROOM,
[SCREENS.MAINTENANCE]: RequestCategory.MAINTENANCE,
};
type HomeScreenProps = AppStackScreenProps<typeof SCREENS.HOME>;
export const HomeScreen = ({ navigation, route }: HomeScreenProps) => {
const { theme } = useTheme();
const errorStyles = useErrorStyles();
const menuItems = useMemo(() => getMenuItems(theme.assets), [theme.assets]);
const insets = useSafeAreaInsets();
const paddingTop = insets.top;
const fabOffset = useFabStateSelector(s => s.fabOffset);
const setFabOffset = useSetFabOffset();
const { allowHomeAccess = false, scrollIndex: savedScrollIndex } = route.params || {};
const carouselRef = useRef<ICarouselInstance>(null);
const currentIndexRef = useRef(0);
const isRefreshingFromNotificationRef = useRef(false);
const isRefreshingFromResolveRef = useRef(allowHomeAccess);
const { data, isLoading, isError, refetch, isRefetching } = useGetRequestsWithoutPagination({
status: RequestStatus.PENDING,
actionable: true,
showHistories: true,
staleTime: CACHE_TIME.MEDIUM,
});
const pendingCount = data?.items?.length || 0;
const { user } = useAuth();
const { meInfo } = useRegistrationData(user?.email || '');
const handlePressProfile = useCallback(() => {
navigation.navigate(SCREENS.PROFILE);
}, [navigation]);
const handleRetry = useCallback(() => {
refetch();
}, [refetch]);
const { value: disableFeatures } = useDisabledFeatures();
const getRealIndex = useCallback(
(index: number) => {
const len = menuItems.length;
return ((index % len) + len) % len;
},
[menuItems.length],
);
const filteredMenuItems = useMemo(() => {
let items = menuItems;
if (meInfo?.room?.id?.toUpperCase() === REALLOCATION_DESTINATION_HOME.toUpperCase()) {
items = items.filter(item => item.path !== SCREENS.MEAL_RESERVATION);
}
return items.filter(item => {
const category = item.path ? SCREEN_CATEGORY_MAP[item.path] : undefined;
return !category || !disableFeatures[category];
});
}, [menuItems, meInfo?.room?.id, disableFeatures]);
useEffect(() => {
if (allowHomeAccess) {
isRefreshingFromResolveRef.current = true;
const t = setTimeout(() => (isRefreshingFromResolveRef.current = false), 1000);
return () => clearTimeout(t);
}
}, [allowHomeAccess]);
const handleNotificationRefresh = useCallback(async () => {
isRefreshingFromNotificationRef.current = true;
const index = currentIndexRef.current;
await refetch();
navigation.setParams({
allowHomeAccess,
scrollIndex: index,
});
setTimeout(() => (isRefreshingFromNotificationRef.current = false), 100);
}, [refetch, navigation, allowHomeAccess]);
useRefreshNotifications({
onRefresh: handleNotificationRefresh,
isRefetching,
});
useFocusEffect(
useCallback(() => {
if (fabOffset !== 0) {
setFabOffset(0);
}
}, [fabOffset, setFabOffset]),
);
useFocusEffect(
useCallback(() => {
// `isRefetching` is a dependency, so refetching on a query that stays empty
// would re-run this effect and refetch again — forever. `isError` breaks that
// loop; recovery goes through the explicit retry button instead.
if (!data && !isError) {
refetch();
}
if (savedScrollIndex !== undefined && !allowHomeAccess && !isLoading && !isRefetching) {
InteractionManager.runAfterInteractions(() => {
carouselRef.current?.scrollTo({
index: savedScrollIndex,
animated: false,
});
currentIndexRef.current = savedScrollIndex;
});
}
}, [refetch, data, isError, savedScrollIndex, allowHomeAccess, isLoading, isRefetching]),
);
const menuItemsWithPending = useMemo(() => {
if (pendingCount > 0) {
return [
...filteredMenuItems,
{
id: '0',
isPending: true,
pendingCount,
mascot: theme.assets.pendingMascot,
},
];
}
return filteredMenuItems;
}, [pendingCount, filteredMenuItems, theme.assets]);
const handlePressPendingRequests = useCallback(() => {
navigation.navigate(SCREENS.PENDING_REQUESTS);
}, [navigation]);
const handlePressMenuItem = useCallback(
(item: MenuItem) => {
if (item.isPending) {
navigation.navigate(SCREENS.PENDING_REQUESTS);
} else Eif (item.path) {
navigation.navigate(item.path);
}
},
[navigation],
);
const renderItem = useCallback(
({ item }: { item: MenuItem }) => (
<View style={styles.page}>
{item.isPending ? (
<BalloonPendingRequest
pendingCount={item.pendingCount || 0}
image={item.mascot}
onPress={() => handlePressMenuItem(item)}
/>
) : (
<BalloonRequest
title={item.title!}
subtitle={item.subtitle!}
image={item.mascot}
onPress={() => handlePressMenuItem(item)}
/>
)}
</View>
),
[handlePressMenuItem],
);
const handleSnapToItem = useCallback(
(index: number) => {
currentIndexRef.current = getRealIndex(index);
},
[getRealIndex],
);
const containerStyle = useMemo(
() => [styles.container, { paddingTop, backgroundColor: theme.colors.background.page }],
[paddingTop, theme.colors.background.page],
);
const loadingContainerStyle = useMemo(
() => [
styles.container,
styles.loadingContainer,
{ backgroundColor: theme.colors.background.page },
],
[theme.colors.background.page],
);
const avatarContainerStyle = useMemo(
() => [styles.avatarContainer, { top: paddingTop }],
[paddingTop],
);
const shouldShowLoading =
(!data && isLoading) ||
(isRefetching &&
(isRefreshingFromNotificationRef.current || isRefreshingFromResolveRef.current));
// Hide the chat FAB while the Home screen has no content to sit on top of
useFabHidden(shouldShowLoading || isError);
if (shouldShowLoading) {
return (
<View
style={loadingContainerStyle}
accessibilityRole="progressbar"
accessibilityLabel="Loading"
>
<ActivityIndicator size="large" color={theme.colors.ui.blue} />
</View>
);
}
if (isError) {
return (
<View style={loadingContainerStyle} testID="home-error">
<Text style={errorStyles.title} accessibilityRole="header">
Something happened!
</Text>
<Text style={errorStyles.message}>We could not load your requests.</Text>
<Button
testID="home-error-retry"
onPress={handleRetry}
style={errorStyles.button}
accessibilityRole="button"
accessibilityLabel="Try again"
accessibilityHint="Reloads your pending requests"
>
Try Again
</Button>
</View>
);
}
if (pendingCount && !allowHomeAccess) {
return (
<View style={containerStyle}>
<View style={avatarContainerStyle}>
<Avatar
uri={user?.photoURL || undefined}
name={user?.displayName || 'User'}
size={theme.metrics.spacing[11]}
onPress={handlePressProfile}
/>
</View>
<BalloonPendingRequest
pendingCount={pendingCount}
image={theme.assets.pendingMascot}
onPress={handlePressPendingRequests}
/>
</View>
);
}
return (
<View style={containerStyle}>
<View style={avatarContainerStyle}>
<Avatar
uri={user?.photoURL || undefined}
name={user?.displayName || 'User'}
size={theme.metrics.spacing[11]}
onPress={handlePressProfile}
/>
</View>
<Carousel
ref={carouselRef}
data={menuItemsWithPending}
width={ITEM_WIDTH}
loop
pagingEnabled
onSnapToItem={handleSnapToItem}
renderItem={renderItem}
/>
</View>
);
};
const useErrorStyles = makeStyles(theme => ({
title: {
...textStyles.content.semiBold,
fontSize: theme.metrics.textSize[24],
fontWeight: theme.metrics.fontWeight.bold,
color: theme.colors.text.heading,
},
message: {
...textStyles.content.regular,
fontSize: theme.metrics.textSize[16],
color: theme.colors.text.muted,
marginTop: theme.metrics.spacing[2],
marginBottom: theme.metrics.spacing[6],
},
button: {
width: theme.metrics.spacing[25],
},
}));
const styles = StyleSheet.create({
loadingContainer: {
justifyContent: 'center',
},
container: {
flex: 1,
alignItems: 'center',
},
page: {
alignItems: 'center',
flex: 1,
},
avatarContainer: {
position: 'absolute',
left: 12,
zIndex: 20,
},
});
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