codeword/internal/repository/user_repository.go

package repository

import (
	"codeword/internal/models"
	"context"
	"github.com/go-redis/redis/v8"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
)

type Deps struct {
	Mdb *mongo.Collection
	Rdb *redis.Client
}

type UserRepository struct {
	mdb *mongo.Collection
}

func NewUserRepository(deps Deps) *UserRepository {

	return &UserRepository{mdb: deps.Mdb}
}

// ищем пользователя по мейлу в коллекции users
func (r *UserRepository) FindByEmail(ctx context.Context, email string) (*models.User, error) {
	var user models.User

	err := r.mdb.FindOne(ctx, bson.M{"login": email}).Decode(&user)
	if err != nil {
		if err == mongo.ErrNoDocuments {
			return nil, nil
		}
		return nil, ErrPromoUserNotFound
	}
	return &user, nil
}