From f159014374d1af1956267855f6e3af386ed7cf75 Mon Sep 17 00:00:00 2001
From: nquidox <nquidox@gmail.com>
Date: Mon, 2 Mar 2026 17:29:43 +0300
Subject: [PATCH] user package

---
 internal/user/handler.go    | 24 ++++++++++++++++++++++++
 internal/user/interface.go  |  5 +++++
 internal/user/repository.go | 29 +++++++++++++++++++++++++++++
 internal/user/service.go    | 26 ++++++++++++++++++++++++++
 4 files changed, 84 insertions(+)
 create mode 100644 internal/user/handler.go
 create mode 100644 internal/user/interface.go
 create mode 100644 internal/user/repository.go
 create mode 100644 internal/user/service.go

diff --git a/internal/user/handler.go b/internal/user/handler.go
new file mode 100644
index 0000000..1e47646
--- /dev/null
+++ b/internal/user/handler.go
@@ -0,0 +1,24 @@
+package user
+
+import (
+	"database/sql"
+	"merch-api/pkg/utils"
+)
+
+type Handler struct {
+	*service
+}
+
+type Deps struct {
+	DB    *sql.DB
+	Utils utils.Utils
+}
+
+func New(deps Deps) *Handler {
+	r := newRepository(deps.DB)
+	s := newService(r, deps.Utils)
+
+	return &Handler{
+		service: s,
+	}
+}
diff --git a/internal/user/interface.go b/internal/user/interface.go
new file mode 100644
index 0000000..0c32bbf
--- /dev/null
+++ b/internal/user/interface.go
@@ -0,0 +1,5 @@
+package user
+
+type Provider interface {
+	GetUserId(userUuid string) (string, error)
+}
diff --git a/internal/user/repository.go b/internal/user/repository.go
new file mode 100644
index 0000000..c2897ae
--- /dev/null
+++ b/internal/user/repository.go
@@ -0,0 +1,29 @@
+package user
+
+import "database/sql"
+
+type Repository interface {
+	getUserId(userUuid string) (string, error)
+}
+
+type repo struct {
+	db *sql.DB
+}
+
+func newRepository(db *sql.DB) Repository {
+	return &repo{
+		db: db,
+	}
+}
+
+func (r *repo) getUserId(userUuid string) (string, error) {
+	q := `SELECT id FROM users WHERE uuid = $1 AND deleted_at IS NULL LIMIT 1`
+	row := r.db.QueryRow(q, userUuid)
+
+	var id string
+	if err := row.Scan(&id); err != nil {
+		return "", err
+	}
+
+	return id, nil
+}
diff --git a/internal/user/service.go b/internal/user/service.go
new file mode 100644
index 0000000..8471b04
--- /dev/null
+++ b/internal/user/service.go
@@ -0,0 +1,26 @@
+package user
+
+import (
+	"errors"
+	"merch-api/pkg/utils"
+)
+
+type service struct {
+	repo  Repository
+	utils utils.Utils
+}
+
+func newService(repo Repository, utils utils.Utils) *service {
+	return &service{
+		repo:  repo,
+		utils: utils,
+	}
+}
+
+func (s *service) GetUserId(userUuid string) (string, error) {
+	if userUuid == "" {
+		return "", errors.New("user uuid is empty")
+	}
+
+	return s.repo.getUserId(userUuid)
+}