Mlcavalho1andClaude Sonnet 4.6
88461a4aea
Remove restrição que bloqueava delete de transações importadas. Adiciona DELETE /transactions?month=YYYY-MM para exclusão em lote e botão "EXCLUIR MÊS" na view de transações. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
package service
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import (
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"context"
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"errors"
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"strings"
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"financeiro-carvalho/internal/model"
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"financeiro-carvalho/internal/repository"
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)
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var (
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ErrInvalidTransactionType = errors.New("type must be 'income' or 'expense'")
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ErrTransactionEmptyDesc = errors.New("description is required")
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ErrTransactionInvalidAmount = errors.New("amount must be greater than zero")
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)
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type TransactionService struct {
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repo repository.ManualTransactionRepository
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}
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func NewTransactionService(repo repository.ManualTransactionRepository) *TransactionService {
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return &TransactionService{repo: repo}
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}
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func (s *TransactionService) List(ctx context.Context, month string) ([]model.Transaction, error) {
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txs, err := s.repo.List(ctx, month)
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if txs == nil {
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return []model.Transaction{}, err
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}
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return txs, err
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}
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func (s *TransactionService) Create(ctx context.Context, t model.Transaction) (*model.Transaction, error) {
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if err := validateTransaction(t); err != nil {
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return nil, err
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}
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t.Description = strings.TrimSpace(t.Description)
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return s.repo.Create(ctx, t)
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}
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func (s *TransactionService) Update(ctx context.Context, t model.Transaction) (*model.Transaction, error) {
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if err := validateTransaction(t); err != nil {
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return nil, err
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}
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t.Description = strings.TrimSpace(t.Description)
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out, err := s.repo.Update(ctx, t)
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if errors.Is(err, repository.ErrNotFound) {
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return nil, ErrCannotEditImported
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}
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return out, err
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}
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func (s *TransactionService) Delete(ctx context.Context, id int) error {
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err := s.repo.Delete(ctx, id)
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if errors.Is(err, repository.ErrNotFound) {
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return errors.New("transaction not found")
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}
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return err
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}
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func (s *TransactionService) DeleteByMonth(ctx context.Context, month string) (int, error) {
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return s.repo.DeleteByMonth(ctx, month)
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}
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func validateTransaction(t model.Transaction) error {
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if strings.TrimSpace(t.Description) == "" {
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return ErrTransactionEmptyDesc
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}
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if t.Amount <= 0 {
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return ErrTransactionInvalidAmount
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}
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if t.Type != "income" && t.Type != "expense" {
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return ErrInvalidTransactionType
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}
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return nil
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}
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