feat(static): Added more sponsor logos

services/templater.go

@@ -7,6 +7,7 @@ import (
 	"html/template"
 	"image/png"
 
+	"git.odit.services/lfk/document-server/templates"
 	"github.com/boombuler/barcode"
 	"github.com/boombuler/barcode/code128"
 	"github.com/boombuler/barcode/ean"
@@ -79,10 +80,19 @@ func (t *DefaultTemplater) GenerateBarcode(code string, format string, prefix st
 	return base64.StdEncoding.EncodeToString(buf.Bytes()), nil
 }
 
+func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
+	sponsors := []string{
+		"vrbank",
+		"odit",
+		"sparkasse",
+	}
+	return templates.GetImage(sponsors[id%len(sponsors)]), nil
+}
+
 func (t *DefaultTemplater) StringToTemplate(templateString string) (*template.Template, error) {
 	return template.New("template").Funcs(template.FuncMap{
 		"barcode":     t.GenerateBarcode,
-		"sponsorLogo": func(id int) string { return "a" },
+		"sponsorLogo": t.SelectSponsorImage,
 	}).Parse(templateString)
 }
 

templates/templates.go

@@ -3,6 +3,8 @@ package templates
 import (
 	_ "embed"
 	"fmt"
+	"log"
+	"os"
 )
 
 //go:embed card/en.html
@@ -20,6 +22,9 @@ var ContractTemplateDe 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":
@@ -39,3 +44,12 @@ func GetTemplate(locale, templateName string) (string, error) {
 	}
 	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)
+}