FamilyHUB/backend/src/repositories/families.go

package repositories

import (
	"FamilyHub/src/domain"
	"context"
	"database/sql"
	"errors"
)

type FamilyRepository interface {
	Create(ctx context.Context, family *domain.Family) error
	GetByID(ctx context.Context, id int64) (*domain.Family, error)
	Update(ctx context.Context, family *domain.Family) error
	Delete(ctx context.Context, id int64) error
}

type FamilySQLRepository struct {
	db *sql.DB
}

func NewFamilySQLRepository(db *sql.DB) *FamilySQLRepository {
	return &FamilySQLRepository{db: db}
}

func (r *FamilySQLRepository) Create(ctx context.Context, family *domain.Family) error {
	query := `
	INSERT INTO families
	(name, owner_id, telegram_chat_id, telegram_chat_name, created_at, updated_at)
	VALUES ($1, $2, $3, $4, $5, $6)
	RETURNING id, created_at, updated_at
	`

	return r.db.QueryRowContext(
		ctx,
		query,
		family.Name,
		family.OwnerID,
		family.TelegramChatID,
		family.TelegramChatName,
		family.CreatedAt,
		family.UpdatedAt,
	).Scan(&family.ID, &family.CreatedAt, &family.UpdatedAt)
}
func (r *FamilySQLRepository) GetByID(ctx context.Context, id int64) (*domain.Family, error) {
	query := `
	SELECT 
		id,
		name,
		owner_id,
		telegram_chat_id,
		telegram_chat_name,
		created_at,
		updated_at
	FROM families
	WHERE id = $1
	`

	var family domain.Family

	err := r.db.QueryRowContext(ctx, query, id).Scan(
		&family.ID,
		&family.Name,
		&family.OwnerID,
		&family.TelegramChatID,
		&family.TelegramChatName,
		&family.CreatedAt,
		&family.UpdatedAt,
	)

	if err != nil {
		if errors.Is(err, sql.ErrNoRows) {
			return nil, nil // или кастомную ErrNotFound
		}
		return nil, err
	}

	return &family, nil
}
func (r *FamilySQLRepository) Update(ctx context.Context, family *domain.Family) error {
	query := `
	UPDATE families SET
		name = $1,
	    telegram_chat_id = $2,
        telegram_chat_name = $3,
		updated_at = now()
	WHERE id = $4
	RETURNING updated_at
	`

	return r.db.QueryRowContext(
		ctx,
		query,
		family.Name,
		family.TelegramChatID,
		family.TelegramChatName,
		family.UpdatedAt,
		family.ID,
	).Scan(&family.UpdatedAt)
}
func (r *FamilySQLRepository) Delete(ctx context.Context, id int64) error {
	query := `DELETE FROM families WHERE id = $1`

	result, err := r.db.ExecContext(ctx, query, id)
	if err != nil {
		return err
	}

	rows, err := result.RowsAffected()
	if err != nil {
		return err
	}

	if rows == 0 {
		return sql.ErrNoRows
	}

	return nil
}