import { get } from 'lodash';

export function reducerWrapper(featureName: string, initialState: any = {}) {
    // In this article, our featureName will be USER_INTERESTS
    return function baseReducer(state = initialState, action: IAction) {
        switch (action.type) {
            case `SUCCESS_${featureName}`: {
                // case `SUCCESS_USER_INTERESTS`
                let stateSlice = get(state, action.payload.path);
                // Check if state at path exists, otherwise error will be thrown when adding data
                if (stateSlice) {
                    stateSlice.data = action.payload.data;
                    stateSlice.status = 'SUCCESS';
                }
                return state;
            }
            case `FAILED_${featureName}`: {
                // case `FAILED_USER_INTERESTS`
                let stateSlice = get(state, action.payload.path);
                if (stateSlice) {
                    stateSlice.status = 'FAILURE';
                }
                return state;
            }
            default:
                return state;
        }
    };
}