add email verification

pkg/templates/known_template.go

@@ -0,0 +1,9 @@
+package templates
+
+type KnownTemplate string
+
+// Known templates
+const (
+	TEMPLATE_VERIFY_EMAIL   KnownTemplate = "email/verify_email"
+	TEMPLATE_PASSWORD_RESET KnownTemplate = "email/password_reset"
+)

pkg/templates/template_cache.go

@@ -9,16 +9,16 @@ import (
 const templateBasePath = "templates"
 const templateFileExtension = "tmpl"
 
-var templateCache = make(map[string]*CachedTemplate)
+var templateCache = make(map[KnownTemplate]*CachedTemplate)
 
 // CachedTemplate represents a cached template
 type CachedTemplate struct {
-	templateName    string
+	templateName    KnownTemplate
 	templateContent *template.Template
 }
 
 // GetTemplate returns a cached template instance according to the template name
-func GetTemplate(templateName string) (*template.Template, error) {
+func GetTemplate(templateName KnownTemplate) (*template.Template, error) {
 	fullPath := filepath.Join(templateBasePath, fmt.Sprintf("%s.%s", templateName, templateFileExtension))
 
 	cachedTemplate, exists := templateCache[templateName]