add user management functionality with OTP verification and consent handling, DI introduced

internal/api/auth/repo/auth_repo.go

@@ -0,0 +1,45 @@
+package repo
+
+import (
+	"context"
+	"time"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/domain"
+	"github.com/redis/rueidis"
+)
+
+type authRepo struct {
+	redisClient rueidis.Client
+}
+
+func (a authRepo) GetOtpRequest(ctx context.Context, uuid string) (*string, error) {
+	redisClient := a.redisClient
+
+	resp, err := redisClient.Do(ctx, redisClient.B().Get().Key("otp:"+uuid).Build()).ToString()
+	if err != nil {
+		return nil, err
+	}
+
+	if resp == "" {
+		// create error
+		return nil, &domain.ErrOtpNotFound{Uuid: uuid}
+	}
+
+	return &resp, nil
+}
+
+func (a authRepo) SaveOtpRequest(ctx context.Context, uuid string, code string) error {
+	redisClient := a.redisClient
+
+	err := redisClient.Do(ctx, redisClient.B().Set().Key("otp:"+uuid).Value(code).Ex(120*time.Second).Build()).Error()
+	if err != nil {
+		return err
+	}
+
+	return nil
+
+}
+
+func NewAuthRepo(redisClient rueidis.Client) domain.AuthRepository {
+	return &authRepo{redisClient: redisClient}
+}