31 lines
908 B
TypeScript
31 lines
908 B
TypeScript
import { map, mapValues, merge } from 'lodash';
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export function buildSelectors(localSelectors, splatSelector, subduxes) {
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const subSelectors = map(subduxes, ({ selectors }, slice) => {
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if (!selectors) return {};
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if (slice === '*') return {};
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return mapValues(selectors, (func) => (state) => func(state[slice]));
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});
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let splat = {};
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if (splatSelector) {
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splat[splatSelector[0]] =
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(state) =>
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(...args) => {
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const value = splatSelector[1](state)(...args);
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const res = () => value;
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return merge(
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res,
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mapValues(
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subduxes['*'].selectors,
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(selector) => () => selector(value)
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)
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);
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};
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}
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return merge({}, ...subSelectors, localSelectors, splat);
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}
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