clean: moved funcs to specific files + GetPage usecase/repo

adapters/secondary/gateways/pageRepository.go

@@ -0,0 +1,32 @@
+package gateways
+
+import (
+	. "GohCMS2/domain/gateways"
+	"bytes"
+	"embed"
+	"html/template"
+)
+
+type PageRepository struct{}
+
+//go:embed web/templates/*
+var templateFiles embed.FS
+
+func NewPageRepository() *PageRepository {
+	return &PageRepository{}
+}
+
+func (p *PageRepository) Get(name string, data interface{}) ([]byte, error) {
+	var processedHTML bytes.Buffer
+	tmpl, err := template.ParseFS(templateFiles, "web/templates/"+name+".html")
+	if err != nil {
+		return nil, err
+	}
+	err = tmpl.Execute(&processedHTML, data)
+	if err != nil {
+		return nil, err
+	}
+	return processedHTML.Bytes(), nil
+}
+
+var _ IPageRepository = &PageRepository{}