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import { SharedEmployee } from '@repo/hooks/useUserQueries';
import { mapSelectedEmployees } from '@repo/utils/user';
import {
useReallocationActionsSelector,
useReallocationStateSelector,
} from '../../Reallocation/context';
const areSameIdList = (left: string[], right: string[]) => {
if (left.length !== right.length) return false;
return left.every((value, index) => value === right[index]);
};
const toggleIdInList = (items: string[], id: string) => {
return items.includes(id)
? items.filter(item => item !== id)
: [...items, id];
};
const mergeUniqueIds = (...groups: string[][]) => {
return Array.from(new Set(groups.flat()));
};
export const useObserverSelection = ({
employees,
defaultObservers = [],
}: {
employees: SharedEmployee[];
defaultObservers?: string[];
}) => {
const { form, isSearchOpen } = useReallocationStateSelector(state => ({
form: state.form,
isSearchOpen: state.isSearchOpen,
}));
const toggleObserver = useReallocationActionsSelector(
actions => actions.toggleObserver,
);
const toggleSearch = useReallocationActionsSelector(
actions => actions.toggleSearch,
);
const closeSearch = useReallocationActionsSelector(
actions => actions.closeSearch,
);
const [searchValue, setSearchValue] = useState('');
const [availableObservers, setAvailableObservers] = useState<string[]>(
mergeUniqueIds(form.observers, defaultObservers),
);
useEffect(() => {
if (defaultObservers.length > 0) {
setAvailableObservers(prev => {
const next = mergeUniqueIds(defaultObservers);
return areSameIdList(prev, next) ? prev : next;
});
}
}, [defaultObservers]);
const openSearch = useCallback(() => {
setSearchValue('');
toggleSearch();
}, [toggleSearch]);
const syncAvailableSelections = useCallback(() => {
setAvailableObservers(prev =>
Array.from(new Set([...prev, ...form.observers])),
);
setSearchValue('');
closeSearch();
}, [closeSearch, form.observers]);
const handleSearchComplete = useCallback(() => {
syncAvailableSelections();
}, [syncAvailableSelections]);
const handleSubmitSearchInput = useCallback(() => {
handleSearchComplete();
}, [handleSearchComplete]);
const handleToggleAvatarInSearchMode = useCallback(
(id: string) => {
setAvailableObservers(prev => toggleIdInList(prev, id));
toggleObserver(id);
},
[toggleObserver],
);
const searchSelectedIds = form.observers;
const employeesFormatted = useMemo(() => {
if (!searchValue) return [];
const normalizedSearch = searchValue.toLowerCase();
return employees
.filter(emp => emp.name?.toLowerCase().includes(normalizedSearch))
.map(emp => ({
id: emp.id || '',
name: emp.name || '',
uri: emp.avatar || '',
}))
.sort((left, right) => {
const leftName = left.name.toLowerCase();
const rightName = right.name.toLowerCase();
const leftStarts = leftName.startsWith(normalizedSearch);
const rightStarts = rightName.startsWith(normalizedSearch);
if (leftStarts !== rightStarts) {
return leftStarts ? -1 : 1;
}
return leftName.localeCompare(rightName);
})
.slice(0, 8);
}, [employees, searchValue]);
const observersFormatted = useMemo(() => {
return mapSelectedEmployees(availableObservers, employees);
}, [availableObservers, employees]);
return {
state: {
form,
isSearchOpen,
searchValue,
searchSelectedIds,
employeesFormatted,
observersFormatted,
},
actions: {
setSearchValue,
openSearch,
handleSearchComplete,
handleToggleAvatarInSearchMode,
handleSubmitSearchInput,
toggleObserver,
},
};
};
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