refactor(templates): Dynamic template loading

handlers/card.go

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

handlers/certificate.go

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

handlers/contract.go

@@ -6,7 +6,6 @@ import (
 
 	"git.odit.services/lfk/document-server/models"
 	"git.odit.services/lfk/document-server/services"
-	"git.odit.services/lfk/document-server/templates"
 	"github.com/gofiber/fiber/v2"
 )
 
@@ -34,7 +33,7 @@ func GenerateContract(c *fiber.Ctx) error {
 	contract.Runners = repeatRunnerArrayItems(contract.Runners, 2)
 
 	generator := services.DefaultTemplater{}
-	templateString, err := templates.GetTemplate(contract.Locale, "contract")
+	templateString, err := services.GetTemplate(contract.Locale, "contract")
 	if err != nil {
 		log.Println(err)
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
@@ -48,13 +47,15 @@ func GenerateContract(c *fiber.Ctx) error {
 		})
 	}
 
+	sponsoringHeader := services.GetImage("sponsoringheader")
+
 	genConfig := &models.ContractTemplateOptions{
 		Runners:              contract.Runners,
 		CurrencySymbol:       "€",
 		Disclaimer:           "This is a disclaimer",
 		ReceiptMinimumAmount: 10,
 		EventName:            "Event name",
-		SponsoringHeader:     templates.ImageSponsoringHeaderBase64,
+		SponsoringHeader:     sponsoringHeader,
 		BarcodeFormat:        "ean13",
 		BarcodePrefix:        "1",
 	}

services/templater.go

@@ -9,7 +9,6 @@ import (
 	"image/png"
 	"strings"
 
-	"git.odit.services/lfk/document-server/templates"
 	"github.com/boombuler/barcode"
 	"github.com/boombuler/barcode/code128"
 	"github.com/boombuler/barcode/ean"
@@ -88,7 +87,7 @@ func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
 		"odit",
 		"sparkasse",
 	}
-	return templates.GetImage(sponsors[id%len(sponsors)]), nil
+	return GetImage(sponsors[id%len(sponsors)]), nil
 }
 
 func FormatUnit(unit string, locale string, amount int) (string, error) {

templates/templates.go

@@ -1,68 +0,0 @@
-package templates
-
-import (
-	_ "embed"
-	"fmt"
-	"log"
-	"os"
-)
-
-//go:embed card/en.html
-var CardTemplateEn string
-
-//go:embed card/de.html
-var CardTemplateDe string
-
-//go:embed contract/en.html
-var ContractTemplateEn string
-
-//go:embed contract/de.html
-var ContractTemplateDe string
-
-//go:embed certificate/de.html
-var CertificateTemplateDe string
-
-//go:embed certificate/en.html
-var CertificateTemplateEn string
-
-//go:embed images/sponsoringheader.base64
-var ImageSponsoringHeaderBase64 string
-
-//go:embed images/error.base64
-var ImageErrorBase64 string
-
-func GetTemplate(locale, templateName string) (string, error) {
-	switch templateName {
-	case "card":
-		switch locale {
-		case "en":
-			return CardTemplateEn, nil
-		case "de":
-			return CardTemplateDe, nil
-		}
-	case "contract":
-		switch locale {
-		case "en":
-			return ContractTemplateEn, nil
-		case "de":
-			return ContractTemplateDe, nil
-		}
-	case "certificate":
-		switch locale {
-		case "en":
-			return CertificateTemplateEn, nil
-		case "de":
-			return CertificateTemplateDe, nil
-		}
-	}
-	return "", fmt.Errorf("template not found with name %s and locale %s", templateName, locale)
-}
-
-func 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)
-		return ImageErrorBase64
-	}
-	return string(content)
-}