From d690b2c16276f4768531f5285cb21a06137c1a9e Mon Sep 17 00:00:00 2001
From: nquidox <nquidox@gmail.com>
Date: Sat, 25 Oct 2025 17:39:17 +0300
Subject: [PATCH] utils created

---
 internal/interfaces/utils.go |  7 +++++
 internal/utils/handler.go    | 50 ++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 internal/interfaces/utils.go
 create mode 100644 internal/utils/handler.go

diff --git a/internal/interfaces/utils.go b/internal/interfaces/utils.go
new file mode 100644
index 0000000..8c339d9
--- /dev/null
+++ b/internal/interfaces/utils.go
@@ -0,0 +1,7 @@
+package interfaces
+
+type Utils interface {
+	MerchImageVolumePath(u, m string) string
+	FilenameFromType(imgType string) string
+	MerchImageURL(u, m, t string) string
+}
diff --git a/internal/utils/handler.go b/internal/utils/handler.go
new file mode 100644
index 0000000..22bd1e0
--- /dev/null
+++ b/internal/utils/handler.go
@@ -0,0 +1,50 @@
+package utils
+
+import (
+	"fmt"
+	"net/url"
+)
+
+type Handler struct {
+	domain string
+	volume string
+}
+
+func NewHandler(domain, volume string) *Handler {
+	return &Handler{
+		domain: domain,
+		volume: volume,
+	}
+}
+
+// MerchImageVolumePath
+// Returns a string like volume/merchImages/userUuid/merchUuid/filename.jpg
+func (h *Handler) MerchImageVolumePath(u, m string) string {
+	return fmt.Sprintf("%s/merchImages/%s/%s", h.volume, u, m)
+}
+
+func (h *Handler) FilenameFromType(imgType string) string {
+	switch imgType {
+	case "thumbnail":
+		return "thumbnail.jpg"
+	case "full":
+		return "full.jpg"
+	default:
+		return "unknown"
+	}
+}
+
+func (h *Handler) MerchImageURL(u, m, t string) string {
+	base, err := url.Parse(h.domain)
+	if err != nil {
+		panic(fmt.Errorf("invalid domain in MerchImageURL: %w", err))
+	}
+
+	base.Path = fmt.Sprintf("/merchImages/%s/%s", url.PathEscape(u), url.PathEscape(m))
+
+	params := url.Values{}
+	params.Set("type", t)
+	base.RawQuery = params.Encode()
+
+	return base.String()
+}