refactor(services): Move staticservice to struct and interface

handlers/card.go

@@ -5,7 +5,6 @@ import (
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
@@ -32,7 +31,7 @@ func (h *DefaultHandler) GenerateCard(c *fiber.Ctx) error {
 		})
 	}
 
-	templateString, err := services.GetTemplate(cardRequest.Locale, "card")
+	templateString, err := h.StaticService.GetTemplate(cardRequest.Locale, "card")
 	if err != nil {
 		log.Println(err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{

handlers/certificate.go

@@ -5,7 +5,6 @@ import (
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
@@ -32,7 +31,7 @@ func (h *DefaultHandler) GenerateCertificate(c *fiber.Ctx) error {
 		})
 	}
 
-	templateString, err := services.GetTemplate(certificateRequest.Locale, "certificate")
+	templateString, err := h.StaticService.GetTemplate(certificateRequest.Locale, "certificate")
 	if err != nil {
 		log.Println(err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{

handlers/contract.go

@@ -5,7 +5,6 @@ import (
 	"slices"
 
 	"git.odit.services/lfk/document-server/models"
-	"git.odit.services/lfk/document-server/services"
 	"github.com/gofiber/fiber/v2"
 )
 
@@ -34,7 +33,7 @@ func (h *DefaultHandler) GenerateContract(c *fiber.Ctx) error {
 
 	contract.Runners = repeatRunnerArrayItems(contract.Runners, 2)
 
-	templateString, err := services.GetTemplate(contract.Locale, "contract")
+	templateString, err := h.StaticService.GetTemplate(contract.Locale, "contract")
 	if err != nil {
 		log.Println(err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{

handlers/handlers.go

@@ -18,4 +18,5 @@ type DefaultHandler struct {
 	BarcodeService services.BarcodeService
 	Templater      services.Templater
 	Converter      services.Converter
+	StaticService  services.StaticService
 }

main.go

@@ -74,11 +74,14 @@ func main() {
 	}
 
 	barcodeGenerator := &services.DefaultBarcodeService{}
+	staticService := &services.DefaultStaticService{}
 	handler := handlers.DefaultHandler{
 		Config:         config,
 		BarcodeService: barcodeGenerator,
+		StaticService:  staticService,
 		Templater: &services.DefaultTemplater{
 			BarcodeService: barcodeGenerator,
+			StaticService:  staticService,
 		},
 		Converter: &services.GotenbergConverter{
 			BaseUrl: config.GotenbergBaseUrl,

services/templater.go

@@ -16,6 +16,7 @@ type Templater interface {
 
 type DefaultTemplater struct {
 	BarcodeService BarcodeService
+	StaticService  StaticService
 }
 
 func idToEan13(id string, prefix string) (string, error) {
@@ -47,15 +48,15 @@ func (t *DefaultTemplater) GenerateBarcode(code string, format string, prefix st
 }
 
 func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
-	sponsors, err := ListFilesInStaticSubFolder("images/sponsors")
+	sponsors, err := t.StaticService.ListFilesInStaticSubFolder("images/sponsors")
 	if err != nil {
 		return "", err
 	}
-	return GetImage("sponsors/" + strings.TrimSuffix(sponsors[id%len(sponsors)], ".base64")), nil
+	return t.StaticService.GetImage("sponsors/" + strings.TrimSuffix(sponsors[id%len(sponsors)], ".base64")), nil
 }
 
 func (t *DefaultTemplater) LoadImage(name string) (string, error) {
-	return GetImage(name), nil
+	return t.StaticService.GetImage(name), nil
 }
 
 func (t *DefaultTemplater) FormatUnit(unit string, locale string, amount int) (string, error) {

services/templates.go

@@ -7,7 +7,16 @@ import (
 	"os"
 )
 
-func GetTemplate(locale, templateName string) (string, error) {
+type StaticService interface {
+	GetTemplate(locale, templateName string) (string, error)
+	ListFilesInStaticSubFolder(folderName string) ([]string, error)
+	GetImage(imageName string) string
+}
+
+type DefaultStaticService struct {
+}
+
+func (s *DefaultStaticService) GetTemplate(locale, templateName string) (string, error) {
 	content, err := os.ReadFile(fmt.Sprintf("static/templates/%s/%s.html", templateName, locale))
 	if content == nil || err != nil {
 		log.Printf("error reading template %s with locale %s: %v", templateName, locale, err)
@@ -16,7 +25,7 @@ func GetTemplate(locale, templateName string) (string, error) {
 	return string(content), nil
 }
 
-func ListFilesInStaticSubFolder(folderName string) ([]string, error) {
+func (s *DefaultStaticService) ListFilesInStaticSubFolder(folderName string) ([]string, error) {
 	files, err := os.ReadDir(fmt.Sprintf("static/%s", folderName))
 	if err != nil {
 		log.Printf("error reading files from folder %s: %v", folderName, err)
@@ -32,7 +41,7 @@ func ListFilesInStaticSubFolder(folderName string) ([]string, error) {
 	return images, nil
 }
 
-func GetImage(imageName string) string {
+func (s *DefaultStaticService) GetImage(imageName string) string {
 	content, err := os.ReadFile("static/images/" + imageName + ".base64")
 	if content == nil || err != nil {
 		log.Printf("error reading image %s: %v", imageName, err)