refactor(templater): Format decimals according to locale

handlers/certificate.go

@@ -51,6 +51,7 @@ func GenerateCertificate(c *fiber.Ctx) error {
 		EventName:      "Event name",
 		Footer:         "Footer",
 		CurrencySymbol: "€",
+		Locale:         certificateRequest.Locale,
 	}
 
 	result, err := generator.Execute(template, genConfig)

models/certificate.go

@@ -37,4 +37,5 @@ type CertificateTemplateOptions struct {
 	EventName      string                `json:"event_name"`
 	Footer         string                `json:"footer"`
 	CurrencySymbol string                `json:"currency_symbol"`
+	Locale         string                `json:"locale"`
 }

services/templater.go

@@ -91,7 +91,7 @@ func (t *DefaultTemplater) SelectSponsorImage(id int) (string, error) {
 	return templates.GetImage(sponsors[id%len(sponsors)]), nil
 }
 
-func FormatUnit(unit string, amount int) (string, error) {
+func FormatUnit(unit string, locale string, amount int) (string, error) {
 	var formatted string
 	switch unit {
 	case "kilometer":
@@ -101,7 +101,11 @@ func FormatUnit(unit string, amount int) (string, error) {
 	default:
 		return "", errors.New("unknown unit")
 	}
+
+	if locale == "de" {
 		return strings.Replace(formatted, ".", ",", -1), nil
+	}
+	return formatted, nil
 }
 
 func (t *DefaultTemplater) StringToTemplate(templateString string) (*template.Template, error) {

templates/certificate/de.html

@@ -56,7 +56,7 @@
         {{ .MiddleName }} {{ .LastName }}
       </p>
       <p style="font-size: 1cm; margin-bottom: 0;">hat beim {{ $.EventName }}</p>
-      <p style="font-size: 2cm; font-weight: bold; margin-bottom: 0;">{{formatUnit "kilometer" .Distance}}km</p>
+      <p style="font-size: 2cm; font-weight: bold; margin-bottom: 0;">{{formatUnit "kilometer" $.Locale .Distance}}km</p>
       <p style="font-size: 1cm;">für den guten Zweck zurückgelegt</p>
     </main>
     <footer class="certificate-footer">
@@ -78,15 +78,15 @@
           {{ range .DistanceDonations}}
           <tr>
             <td>{{ .Donor.FirstName }} {{ .Donor.MiddleName }} {{ .Donor.LastName }}</td>
-            <td>{{ formatUnit "euro" .AmountPerDistance }} {{ $.CurrencySymbol }}</td>
-            <td>{{ formatUnit "euro" .Amount }} {{ $.CurrencySymbol }}</td>
+            <td>{{ formatUnit "euro" $.Locale .AmountPerDistance }} {{ $.CurrencySymbol }}</td>
+            <td>{{ formatUnit "euro" $.Locale .Amount }} {{ $.CurrencySymbol }}</td>
           </tr>
           {{ end }}
         </tbody>
         <tfoot>
           <td>Gesamt</td>
-          <td>{{ formatUnit "euro" .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
-          <td>{{ formatUnit "euro" .TotalDonations }} {{ $.CurrencySymbol }}</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalPerDistance }} {{ $.CurrencySymbol }}</td>
+          <td>{{ formatUnit "euro" $.Locale .TotalDonations }} {{ $.CurrencySymbol }}</td>
         </tfoot>
       </table>
     </main>

templates/templates.go

@@ -22,6 +22,9 @@ 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
 
@@ -47,7 +50,7 @@ func GetTemplate(locale, templateName string) (string, error) {
 	case "certificate":
 		switch locale {
 		case "en":
-			return ContractTemplateEn, nil
+			return CertificateTemplateEn, nil
 		case "de":
 			return CertificateTemplateDe, nil
 		}