From 9f4133a0fce1d45f8ad69dea58fab64e25096ca1 Mon Sep 17 00:00:00 2001
From: Peter Sanchez <peter@netlandish.com>
Date: Thu, 8 Aug 2024 14:42:29 -0600
Subject: [PATCH] Adding server Extend functionality

---
 core/local.go        | 15 +++++++++++++++
 server/server.go     | 11 +++++++++++
 validate/template.go |  5 +++++
 3 files changed, 31 insertions(+)

diff --git a/core/local.go b/core/local.go
index 6fea1cd..739f792 100644
--- a/core/local.go
+++ b/core/local.go
@@ -68,3 +68,18 @@ func GetSessionGlobalLocalizer(c echo.Context) *localizer.Localizer {
 	lang := GetLang(c)
 	return localizer.GetGlobal(lang)
 }
+
+// PageData holds translations for html template values
+type PageData struct {
+	Title string
+	Data  map[string]string
+}
+
+// NewPageData returns a new PageData instance
+func NewPageData(title string) *PageData {
+	return &PageData{
+		Title: title,
+		Data:  make(map[string]string),
+	}
+
+}
diff --git a/server/server.go b/server/server.go
index 2de8c34..3ced1d9 100644
--- a/server/server.go
+++ b/server/server.go
@@ -61,6 +61,12 @@ func (a *appInfo) Version() string {
 	return a.version
 }
 
+// Extension is an interface to add on to the Server instance via a 3rd
+// party module
+type Extension interface {
+	Extend(gserver *Server) (*Server, error)
+}
+
 // GraphQL is a holder for a graphql schema and options
 type GraphQL struct {
 	Schema        graphql.ExecutableSchema
@@ -486,6 +492,11 @@ func (s *Server) addDefaultTemplateData() {
 	s.AddStaticVar("BaseURI", s.Config.BaseURI())
 }
 
+// Extend will apply the given Extension interface
+func (s *Server) Extend(ext Extension) (*Server, error) {
+	return ext.Extend(s)
+}
+
 // WithSchema Adds a GraphQL schema for this server. The second parameter
 // shall be the list of scopes, as strings, which are supported by this
 // schema. This function configures routes for the router; all middlewares
diff --git a/validate/template.go b/validate/template.go
index ce80fcd..6569931 100644
--- a/validate/template.go
+++ b/validate/template.go
@@ -32,6 +32,11 @@ type (
 		protect bool
 		allowed []string
 	}
+
+	// TemplateRenderFunc defines a function to render a template. The `code` variable is the
+	// response status code. The `name` is the template name. The `data` variable should be what
+	// is passed to the template engine for use inside the templates.
+	TemplateRenderFunc func(c echo.Context, code int, name string, data interface{}) error
 )
 
 // NewTemplate returns a *Template instance
-- 
2.45.2