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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | 4x 4x 4x 9x 4x 2x 2x 1x 55x 55x 71x 70x 4x 66x 76x 76x 4x 72x 67x 67x 4x 67x 2x 67x 2x 67x | import { createContext, useContext, useReducer, useCallback } from 'react';
const ParametersContext = createContext(null);
const ParametersDispatchContext = createContext(null);
/**
* Initial parameters state
*/
const INITIAL_PARAMETERS_STATE = {
isLoaded: false,
r_ij: 1.2,
paramGeneral: null,
onebody_parameters: null,
twobody_parameters: null,
threebody_parameters: null,
fourbody_parameters: null,
diagonalAtom: null,
hydrogenbonds: null,
bondOrderArrays: null,
};
/**
* Parameters reducer
*/
function parametersReducer(state, action) {
switch (action.type) {
case 'SET_PARAMETERS':
return {
...state,
...action.payload,
isLoaded: true,
};
case 'SET_BOND_ORDER_ARRAYS':
return {
...state,
bondOrderArrays: action.payload,
};
case 'RESET_PARAMETERS':
return INITIAL_PARAMETERS_STATE;
default:
return state;
}
}
/**
* Parameters Provider Component
*/
export function ParametersProvider({ children }) {
const [state, dispatch] = useReducer(parametersReducer, INITIAL_PARAMETERS_STATE);
return (
<ParametersContext.Provider value={state}>
<ParametersDispatchContext.Provider value={dispatch}>
{children}
</ParametersDispatchContext.Provider>
</ParametersContext.Provider>
);
}
/**
* Custom hook to access parameters state
*/
export function useParameters() {
const context = useContext(ParametersContext);
if (context === null) {
throw new Error('useParameters must be used within a ParametersProvider');
}
return context;
}
/**
* Custom hook to access parameters dispatch
*/
export function useParametersDispatch() {
const context = useContext(ParametersDispatchContext);
if (context === null) {
throw new Error('useParametersDispatch must be used within a ParametersProvider');
}
return context;
}
/**
* Custom hook for parameter actions
*/
export function useParametersActions() {
const dispatch = useParametersDispatch();
const setParameters = useCallback((params) => {
dispatch({ type: 'SET_PARAMETERS', payload: params });
}, [dispatch]);
const setBondOrderArrays = useCallback((arrays) => {
dispatch({ type: 'SET_BOND_ORDER_ARRAYS', payload: arrays });
}, [dispatch]);
const resetParameters = useCallback(() => {
dispatch({ type: 'RESET_PARAMETERS' });
}, [dispatch]);
return {
setParameters,
setBondOrderArrays,
resetParameters,
};
}
export default ParametersContext;
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