98 lines
3.3 KiB
TypeScript
98 lines
3.3 KiB
TypeScript
/**
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* Application Use Case: ProcessWalletTransactionUseCase
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*
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* Processes a wallet transaction (deposit or withdrawal).
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*/
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import type { WalletRepository, ITransactionRepository } from '../../domain/repositories/WalletRepository';
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import type { Wallet, Transaction } from '../../domain/entities/Wallet';
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import { TransactionType, ReferenceType } from '../../domain/entities/Wallet';
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import type { UseCase } from '@core/shared/application/UseCase';
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import { Result } from '@core/shared/domain/Result';
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import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
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export interface ProcessWalletTransactionInput {
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leagueId: string;
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type: TransactionType;
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amount: number;
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description: string;
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referenceId?: string;
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referenceType?: ReferenceType;
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}
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export interface ProcessWalletTransactionResult {
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wallet: Wallet;
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transaction: Transaction;
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}
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export type ProcessWalletTransactionErrorCode = 'MISSING_REQUIRED_FIELDS' | 'INVALID_TYPE' | 'INSUFFICIENT_BALANCE';
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export class ProcessWalletTransactionUseCase
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implements UseCase<ProcessWalletTransactionInput, ProcessWalletTransactionResult, ProcessWalletTransactionErrorCode>
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{
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constructor(
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private readonly walletRepository: IWalletRepository,
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private readonly transactionRepository: ITransactionRepository,
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) {}
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async execute(input: ProcessWalletTransactionInput): Promise<Result<ProcessWalletTransactionResult, ApplicationErrorCode<ProcessWalletTransactionErrorCode>>> {
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const { leagueId, type, amount, description, referenceId, referenceType } = input;
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if (!leagueId || !type || amount === undefined || !description) {
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return Result.err({ code: 'MISSING_REQUIRED_FIELDS' as const });
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}
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if (type !== TransactionType.DEPOSIT && type !== TransactionType.WITHDRAWAL) {
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return Result.err({ code: 'INVALID_TYPE' as const });
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}
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let wallet = await this.walletRepository.findByLeagueId(leagueId);
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if (!wallet) {
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const id = `wallet-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
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const newWallet: Wallet = {
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id,
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leagueId,
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balance: 0,
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totalRevenue: 0,
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totalPlatformFees: 0,
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totalWithdrawn: 0,
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currency: 'USD',
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createdAt: new Date(),
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};
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wallet = await this.walletRepository.create(newWallet);
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}
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if (type === TransactionType.WITHDRAWAL) {
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if (amount > wallet.balance) {
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return Result.err({ code: 'INSUFFICIENT_BALANCE' as const });
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}
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}
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const transactionId = `txn-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
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const transaction: Transaction = {
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id: transactionId,
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walletId: wallet.id,
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type,
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amount,
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description,
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createdAt: new Date(),
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...(referenceId !== undefined ? { referenceId } : {}),
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...(referenceType !== undefined ? { referenceType } : {}),
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};
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const createdTransaction = await this.transactionRepository.create(transaction);
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if (type === TransactionType.DEPOSIT) {
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wallet.balance += amount;
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wallet.totalRevenue += amount;
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} else {
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wallet.balance -= amount;
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wallet.totalWithdrawn += amount;
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}
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const updatedWallet = await this.walletRepository.update(wallet);
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return Result.ok({ wallet: updatedWallet, transaction: createdTransaction });
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}
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} |