ts-data-forge/dist/functional/ternary-result/impl/ternary-result-fold.mjs

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import { err } from './ternary-result-err.mjs';
import { isOk } from './ternary-result-is-ok.mjs';
import { isWarn } from './ternary-result-is-warn.mjs';
import { ok } from './ternary-result-ok.mjs';
import { warn } from './ternary-result-warn.mjs';

function fold(...args) {
    switch (args.length) {
        case 4: {
            const [result, mapOk, mapWarn, mapErr] = args;
            return foldImpl(result, mapOk, mapWarn, mapErr);
        }
        case 3: {
            const [mapOk, mapWarn, mapErr] = args;
            return (result) => foldImpl(result, mapOk, mapWarn, mapErr);
        }
    }
}
const foldImpl = (result, mapOk, mapWarnFn, mapErrFn) => {
    if (isOk(result)) {
        // eslint-disable-next-line total-functions/no-unsafe-type-assertion
        return ok(mapOk(result.value));
    }
    if (isWarn(result)) {
        return warn(
        // eslint-disable-next-line total-functions/no-unsafe-type-assertion
        mapOk(result.value), 
        // eslint-disable-next-line total-functions/no-unsafe-type-assertion
        mapWarnFn(result.warning));
    }
    // eslint-disable-next-line total-functions/no-unsafe-type-assertion
    return err(mapErrFn(result.value));
};

export { fold };
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