@eristack/rounding-policy/dist/index.js

Named rounding profiles that resolve to @eristack/money Rounding operators

// src/core/errors.ts
var RoundingPolicyNotFoundError = class extends Error {
  constructor(policyId) {
    super(`Rounding policy not found: ${policyId}`);
    this.policyId = policyId;
    this.name = "RoundingPolicyNotFoundError";
  }
  policyId;
};

// src/core/registry.ts
import { Rounding } from "@eristack/money";
function resolveOperator(def, currency) {
  const code = currency?.trim().toUpperCase();
  const override = code ? def.currencyOverrides?.[code] : void 0;
  if (override?.scale !== void 0) {
    return Rounding.of(
      override.scale,
      override.mode ?? def.mode ?? "HALF_EVEN"
    );
  }
  if (def.scale !== void 0) {
    return Rounding.of(def.scale, def.mode ?? "HALF_EVEN");
  }
  return Rounding.currencyDefault(
    code ?? currency,
    def.mode ?? "HALF_EVEN"
  );
}
function createRoundingPolicyRegistry(initial = []) {
  const policies = /* @__PURE__ */ new Map();
  function registerPolicy(def) {
    if (!def.id.trim()) {
      throw new Error("Rounding policy id cannot be empty");
    }
    policies.set(def.id, { ...def, id: def.id.trim() });
  }
  for (const def of initial) {
    registerPolicy(def);
  }
  function roundingFor(args) {
    const def = policies.get(args.policyId);
    if (!def) {
      throw new RoundingPolicyNotFoundError(args.policyId);
    }
    return resolveOperator(def, args.currency);
  }
  function listPolicies() {
    return [...policies.values()];
  }
  return { registerPolicy, roundingFor, listPolicies };
}
export {
  RoundingPolicyNotFoundError,
  createRoundingPolicyRegistry
};
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