All files / apps/timeOff/src/screens/ChooseApproversAndObservers/hooks useOnBehalfSelection.ts

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import { useCallback, useEffect, useRef, useState } from 'react';
 
import { ROLE } from '@/constants/role';
 
import { useTimeOffActionsSelector } from '@/screens/TimeOff/context';
 
import { ChooseRole } from '../types';
 
type OnBehalfSyncOptions = {
  keepOnBehalf?: boolean;
};
 
type UseOnBehalfSelectionParams = {
  requester?: string;
  openSearch: (nextRole: ChooseRole) => void;
  setIsOnBehalf: (value: boolean) => void;
  toggleExtraUser: (id: string) => void;
  syncAfterSubmit: (options?: OnBehalfSyncOptions) => void;
};
 
export const useOnBehalfSelection = ({
  requester,
  openSearch,
  setIsOnBehalf,
  toggleExtraUser,
  syncAfterSubmit,
}: UseOnBehalfSelectionParams) => {
  const lastRequesterRef = useRef<string | null>(requester || null);
  const resetApproversAndObservers = useTimeOffActionsSelector(
    actions => actions.resetApproversAndObservers,
  );
  const [onBehalfUserSelected, setOnBehalfUserSelected] = useState<
    string | null
  >(null);
 
  useEffect(() => {
    if (requester) {
      lastRequesterRef.current = requester;
    }
  }, [requester]);
 
  const resetOnBehalfSelection = useCallback(() => {
    setOnBehalfUserSelected(null);
  }, []);
 
  const handlePressSwitchOnBehalf = useCallback(
    (value: boolean) => {
      resetApproversAndObservers();
      if (!value) {
        setIsOnBehalf(false);
        Eif (requester) {
          lastRequesterRef.current = null;
          toggleExtraUser('');
        }
        return;
      }
 
      const cachedRequester = requester || lastRequesterRef.current;
      Iif (cachedRequester) {
        if (!requester) {
          toggleExtraUser(cachedRequester);
        }
        setIsOnBehalf(true);
        resetOnBehalfSelection();
        return;
      }
 
      setIsOnBehalf(true);
      openSearch(ROLE.ON_BEHALF);
      resetOnBehalfSelection();
    },
    [
      openSearch,
      requester,
      resetApproversAndObservers,
      resetOnBehalfSelection,
      setIsOnBehalf,
      toggleExtraUser,
    ],
  );
 
  const handlePressAvatarOnBehalf = useCallback(() => {
    openSearch(ROLE.ON_BEHALF);
    setOnBehalfUserSelected(requester || null);
  }, [openSearch, requester]);
 
  const handleSubmitOnBehalf = useCallback(() => {
    const nextRequester = onBehalfUserSelected || requester;
    Iif (!nextRequester) {
      return;
    }
 
    lastRequesterRef.current = nextRequester;
 
    Eif (onBehalfUserSelected) {
      toggleExtraUser(onBehalfUserSelected);
    }
 
    setIsOnBehalf(true);
    resetOnBehalfSelection();
    syncAfterSubmit({ keepOnBehalf: true });
  }, [
    onBehalfUserSelected,
    requester,
    resetOnBehalfSelection,
    setIsOnBehalf,
    syncAfterSubmit,
    toggleExtraUser,
  ]);
 
  return {
    state: {
      onBehalfUserSelected,
    },
    actions: {
      setOnBehalfUserSelected,
      resetOnBehalfSelection,
      handlePressSwitchOnBehalf,
      handlePressAvatarOnBehalf,
      handleSubmitOnBehalf,
    },
  };
};