import * as R from 'remeda';
import u from '@yanick/updeep-remeda';
import { D } from '@mobily/ts-belt';
export function buildReducer(initialStateState, mutations = [], defaultMutation, subduxes = {}, inheritedReducer) {
    const subReducers = D.map(subduxes, D.getUnsafe('reducer'));
    const reducer = (state = initialStateState, action) => {
        if (!(action === null || action === void 0 ? void 0 : action.type))
            throw new Error('reducer called with a bad action');
        let active = mutations.filter(({ matcher }) => matcher(action));
        if (active.length === 0 && defaultMutation)
            active.push(defaultMutation);
        if (!active.some(R.prop('terminal')) && inheritedReducer) {
            active.push({
                mutation: (_payload, action) => (state) => {
                    return u(state, inheritedReducer(state, action));
                },
            });
        }
        if (!active.some(R.prop('terminal')) &&
            D.values(subReducers).length > 0) {
            active.push({
                mutation: (payload, action) => (state) => {
                    return u(state, R.mapValues(subReducers, (reducer, slice) => (state) => {
                        return reducer(state, action);
                    }));
                },
            });
        }
        return active.reduce((state, { mutation }) => mutation(action.payload, action)(state), state);
    };
    return reducer;
}