Files
Novault-backend/internal/repository/recurring_transaction_repository.go
2026-01-25 21:59:00 +08:00

192 lines
7.7 KiB
Go

package repository
import (
"errors"
"fmt"
"time"
"accounting-app/internal/models"
"gorm.io/gorm"
)
// Recurring transaction repository errors
var (
ErrRecurringTransactionNotFound = errors.New("recurring transaction not found")
)
// RecurringTransactionRepository handles database operations for recurring transactions
type RecurringTransactionRepository struct {
db *gorm.DB
}
// NewRecurringTransactionRepository creates a new RecurringTransactionRepository instance
func NewRecurringTransactionRepository(db *gorm.DB) *RecurringTransactionRepository {
return &RecurringTransactionRepository{db: db}
}
// Create creates a new recurring transaction in the database
func (r *RecurringTransactionRepository) Create(recurringTransaction *models.RecurringTransaction) error {
if err := r.db.Create(recurringTransaction).Error; err != nil {
return fmt.Errorf("failed to create recurring transaction: %w", err)
}
return nil
}
// GetByID retrieves a recurring transaction by its ID
func (r *RecurringTransactionRepository) GetByID(userID uint, id uint) (*models.RecurringTransaction, error) {
var recurringTransaction models.RecurringTransaction
if err := r.db.Where("user_id = ?", userID).First(&recurringTransaction, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, ErrRecurringTransactionNotFound
}
return nil, fmt.Errorf("failed to get recurring transaction: %w", err)
}
return &recurringTransaction, nil
}
// GetByIDWithRelations retrieves a recurring transaction by its ID with all relations preloaded
func (r *RecurringTransactionRepository) GetByIDWithRelations(userID uint, id uint) (*models.RecurringTransaction, error) {
var recurringTransaction models.RecurringTransaction
if err := r.db.Where("user_id = ?", userID).
Preload("Category").
Preload("Account").
First(&recurringTransaction, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return nil, ErrRecurringTransactionNotFound
}
return nil, fmt.Errorf("failed to get recurring transaction with relations: %w", err)
}
return &recurringTransaction, nil
}
// Update updates an existing recurring transaction in the database
func (r *RecurringTransactionRepository) Update(recurringTransaction *models.RecurringTransaction) error {
// First check if the recurring transaction exists
var existing models.RecurringTransaction
if err := r.db.Where("user_id = ?", recurringTransaction.UserID).First(&existing, recurringTransaction.ID).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return ErrRecurringTransactionNotFound
}
return fmt.Errorf("failed to check recurring transaction existence: %w", err)
}
// Update the recurring transaction
if err := r.db.Save(recurringTransaction).Error; err != nil {
return fmt.Errorf("failed to update recurring transaction: %w", err)
}
return nil
}
// Delete deletes a recurring transaction by its ID (soft delete)
func (r *RecurringTransactionRepository) Delete(userID uint, id uint) error {
// First check if the recurring transaction exists
var recurringTransaction models.RecurringTransaction
if err := r.db.Where("user_id = ?", userID).First(&recurringTransaction, id).Error; err != nil {
if errors.Is(err, gorm.ErrRecordNotFound) {
return ErrRecurringTransactionNotFound
}
return fmt.Errorf("failed to check recurring transaction existence: %w", err)
}
// Delete the recurring transaction (soft delete due to gorm.DeletedAt field)
if err := r.db.Delete(&recurringTransaction).Error; err != nil {
return fmt.Errorf("failed to delete recurring transaction: %w", err)
}
return nil
}
// List retrieves all recurring transactions for a user
func (r *RecurringTransactionRepository) List(userID uint) ([]models.RecurringTransaction, error) {
var recurringTransactions []models.RecurringTransaction
if err := r.db.Where("user_id = ?", userID).
Preload("Category").
Preload("Account").
Order("next_occurrence ASC").
Find(&recurringTransactions).Error; err != nil {
return nil, fmt.Errorf("failed to list recurring transactions: %w", err)
}
return recurringTransactions, nil
}
// GetActive retrieves all active recurring transactions for a user
func (r *RecurringTransactionRepository) GetActive(userID uint) ([]models.RecurringTransaction, error) {
var recurringTransactions []models.RecurringTransaction
if err := r.db.Where("user_id = ? AND is_active = ?", userID, true).
Preload("Category").
Preload("Account").
Order("next_occurrence ASC").
Find(&recurringTransactions).Error; err != nil {
return nil, fmt.Errorf("failed to get active recurring transactions: %w", err)
}
return recurringTransactions, nil
}
// GetDueTransactions retrieves all active recurring transactions that are due (next_occurrence <= now) for a user
func (r *RecurringTransactionRepository) GetDueTransactions(userID uint, now time.Time) ([]models.RecurringTransaction, error) {
var recurringTransactions []models.RecurringTransaction
if err := r.db.Where("user_id = ? AND is_active = ? AND next_occurrence <= ?", userID, true, now).
Preload("Category").
Preload("Account").
Order("next_occurrence ASC").
Find(&recurringTransactions).Error; err != nil {
return nil, fmt.Errorf("failed to get due recurring transactions: %w", err)
}
return recurringTransactions, nil
}
// GetByAccountID retrieves all recurring transactions for a specific account and user
func (r *RecurringTransactionRepository) GetByAccountID(userID, accountID uint) ([]models.RecurringTransaction, error) {
var recurringTransactions []models.RecurringTransaction
if err := r.db.Where("user_id = ? AND account_id = ?", userID, accountID).
Preload("Category").
Order("next_occurrence ASC").
Find(&recurringTransactions).Error; err != nil {
return nil, fmt.Errorf("failed to get recurring transactions by account: %w", err)
}
return recurringTransactions, nil
}
// GetByCategoryID retrieves all recurring transactions for a specific category and user
func (r *RecurringTransactionRepository) GetByCategoryID(userID, categoryID uint) ([]models.RecurringTransaction, error) {
var recurringTransactions []models.RecurringTransaction
if err := r.db.Where("user_id = ? AND category_id = ?", userID, categoryID).
Preload("Account").
Order("next_occurrence ASC").
Find(&recurringTransactions).Error; err != nil {
return nil, fmt.Errorf("failed to get recurring transactions by category: %w", err)
}
return recurringTransactions, nil
}
// ExistsByID checks if a recurring transaction with the given ID exists for a user
func (r *RecurringTransactionRepository) ExistsByID(userID, id uint) (bool, error) {
var count int64
if err := r.db.Model(&models.RecurringTransaction{}).Where("user_id = ? AND id = ?", userID, id).Count(&count).Error; err != nil {
return false, fmt.Errorf("failed to check recurring transaction existence: %w", err)
}
return count > 0, nil
}
// CountByAccountID returns the count of recurring transactions for an account and user
func (r *RecurringTransactionRepository) CountByAccountID(userID, accountID uint) (int64, error) {
var count int64
if err := r.db.Model(&models.RecurringTransaction{}).
Where("user_id = ? AND account_id = ?", userID, accountID).
Count(&count).Error; err != nil {
return 0, fmt.Errorf("failed to count recurring transactions by account: %w", err)
}
return count, nil
}
// CountByCategoryID returns the count of recurring transactions for a category and user
func (r *RecurringTransactionRepository) CountByCategoryID(userID, categoryID uint) (int64, error) {
var count int64
if err := r.db.Model(&models.RecurringTransaction{}).
Where("user_id = ? AND category_id = ?", userID, categoryID).
Count(&count).Error; err != nil {
return 0, fmt.Errorf("failed to count recurring transactions by category: %w", err)
}
return count, nil
}