Oli Sturm
54 lines
1.2 KiB
TypeScript
54 lines
1.2 KiB
TypeScript
import { Result } from '../library/result.js';
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import { Money } from './money.js';
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export type Account = {
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id: string;
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balance: Money;
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};
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export type OpeningBalanceMustBeNonNegative = {
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type: 'OpeningBalanceMustBeNonNegative';
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};
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export type AmountMustBePositive = {
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type: 'AmountMustBePositive';
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};
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export type InsufficientBalance = {
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type: 'InsufficientBalance';
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balance: Money;
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amount: Money;
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};
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export type AccountNotFound = {
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type: 'AccountNotFound';
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accountId: string;
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};
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export type AccountError =
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| OpeningBalanceMustBeNonNegative
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| AmountMustBePositive
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| InsufficientBalance
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| AccountNotFound;
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export declare const openingBalanceMustBeNonNegative: OpeningBalanceMustBeNonNegative;
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export declare const amountMustBePositive: AmountMustBePositive;
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export declare const insufficientBalance: (
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balance: Money,
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amount: Money
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) => InsufficientBalance;
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export declare const accountNotFound: (accountId: string) => AccountNotFound;
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export declare const openAccount: (
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id: string,
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openingBalance: Money
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) => Result<Account, AccountError>;
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export declare const withdraw: (
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account: Account,
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amount: Money
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) => Result<Account, AccountError>;
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