All files / apps/reallocation/src/screens/ReallocationV2 context.tsx

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import React, { useCallback, useMemo, useState } from 'react';
 
import { createContext, useContextSelector } from 'use-context-selector';
 
import {
  type ReallocationShift,
  type ReallocationV2Actions,
  type ReallocationV2ContextValue,
  type ReallocationV2Form,
  type ReallocationV2State,
} from './types';
 
const INITIAL_FORM: ReallocationV2Form = {
  observers: [],
};
 
const toggleIdInList = (items: string[], id: string) => {
  return items.includes(id)
    ? items.filter(item => item !== id)
    : [...items, id];
};
 
const ReallocationV2Context = createContext<ReallocationV2ContextValue | null>(
  null,
);
 
const useReallocationV2Selector = <T,>(
  selector: (context: ReallocationV2ContextValue) => T,
): T => {
  return useContextSelector(ReallocationV2Context, context => {
    if (!context) {
      throw new Error(
        'ReallocationV2 context hooks must be used within ReallocationV2ContextProvider',
      );
    }
 
    return selector(context);
  });
};
 
export const useReallocationV2StateSelector = <T,>(
  selector: (state: ReallocationV2State) => T,
): T => {
  return useReallocationV2Selector(context => selector(context.state));
};
 
export const useReallocationV2ActionsSelector = <T,>(
  selector: (actions: ReallocationV2Actions) => T,
): T => {
  return useReallocationV2Selector(context => selector(context.actions));
};
 
export const ReallocationV2ContextProvider = ({
  children,
}: {
  children: React.ReactNode;
}) => {
  const [form, setForm] = useState<ReallocationV2Form>(INITIAL_FORM);
  const [isSearchOpen, setIsSearchOpen] = useState(false);
  const [isDatePickerOpen, setIsDatePickerOpen] = useState(false);
  const [isReasonInputOpen, setIsReasonInputOpen] = useState(false);
  const [isSubmitting, setIsSubmitting] = useState(false);
 
  const resetObservers = useCallback(() => {
    setForm(prev => ({
      ...prev,
      observers: [],
    }));
  }, []);
 
  const toggleSearch = useCallback(() => {
    setIsSearchOpen(prev => !prev);
  }, []);
 
  const closeSearch = useCallback(() => {
    setIsSearchOpen(false);
  }, []);
 
  const closeDatePicker = useCallback(() => {
    setIsDatePickerOpen(false);
  }, []);
 
  const closeReasonInput = useCallback(() => {
    setIsReasonInputOpen(false);
  }, []);
 
  const toggleObserver = useCallback((id: string) => {
    setForm(prev => ({
      ...prev,
      observers: toggleIdInList(prev.observers, id),
    }));
  }, []);
 
  const changeDate = useCallback((date: Date) => {
    setForm(prev => ({
      ...prev,
      date,
    }));
  }, []);
 
  const changeShift = useCallback((shift: ReallocationShift) => {
    setForm(prev => ({
      ...prev,
      shift,
    }));
  }, []);
 
  const changeRoom = useCallback((room: string) => {
    setForm(prev => ({
      ...prev,
      room,
    }));
  }, []);
 
  const changeOriginRoom = useCallback((room: string) => {
    setForm(prev => ({
      ...prev,
      originRoom: room,
    }));
  }, []);
 
  const changeReason = useCallback((reason: string) => {
    setForm(prev => ({
      ...prev,
      reason,
    }));
  }, []);
 
  const state = useMemo<ReallocationV2State>(
    () => ({
      form,
      isSearchOpen,
      isDatePickerOpen,
      isReasonInputOpen,
      isSubmitting,
    }),
    [form, isSearchOpen, isDatePickerOpen, isReasonInputOpen, isSubmitting],
  );
 
  const actions = useMemo<ReallocationV2Actions>(
    () => ({
      resetObservers,
      toggleObserver,
      changeDate,
      changeShift,
      changeRoom,
      changeOriginRoom,
      changeReason,
      toggleSearch,
      closeSearch,
      closeDatePicker,
      closeReasonInput,
      setDatePickerOpen: setIsDatePickerOpen,
      setReasonInputOpen: setIsReasonInputOpen,
      setSubmitting: setIsSubmitting,
    }),
    [
      resetObservers,
      toggleObserver,
      changeDate,
      changeShift,
      changeRoom,
      changeOriginRoom,
      changeReason,
      toggleSearch,
      closeSearch,
      closeDatePicker,
      closeReasonInput,
    ],
  );
 
  const value = useMemo<ReallocationV2ContextValue>(
    () => ({
      state,
      actions,
    }),
    [state, actions],
  );
 
  return (
    <ReallocationV2Context.Provider value={value}>
      {children}
    </ReallocationV2Context.Provider>
  );
};