store index.ts

36.36% Statements 8/22

14.29% Branches 1/7

16.67% Functions 1/6

38.1% Lines 8/21

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  import { useState, useEffect, useCallback } from 'react';
 
let globalState: any = {};
let listeners: any[] = [];
let actions: any = {};
 
export const useStore = (shouldListen = true) => {
  const setState = useState(globalState)[1];
 
  const dispatch = useCallback((actionIdentifier: string, payload: any) => {
    const newState = actions[actionIdentifier](globalState, payload);
    globalState = { ...globalState, ...newState };
    for (const listener of listeners) {
      listener(globalState);
    }
  }, []);
 
  useEffect(() => {
    if (shouldListen) {
      listeners.push(setState);
    }
 
    return () => {
      if (shouldListen) {
        listeners = listeners.filter(li => li !== setState);
      }
    };
  }, [setState, shouldListen]);
 
  return [globalState, dispatch];
};
 
export const initStore = (userActions: any, initialState: any) => {
  Eif (initialState) {
    globalState = { ...globalState, ...initialState };
  }
  actions = { ...actions, ...userActions };
};