Add templating

internal/server/template_data.go

@@ -0,0 +1,86 @@
+package server
+
+import "html/template"
+
+// This file defines the data structures and helper functions for the template system.
+//
+// The template system uses Go's html/template package to provide:
+// - Dynamic menu bars that can be customized per page
+// - Template inheritance via layout.html
+// - Type-safe data passing via structs
+//
+// To create a new page with a custom menu:
+//  1. Create a PageData struct with your menu configuration
+//  2. Call s.renderTemplate(w, status, "yourpage.html", data)
+//  3. In yourpage.html, use {{template "layout" .}} and define content blocks
+//
+// See TEMPLATE_GUIDE.md for detailed examples and usage patterns.
+
+// PageData holds the data passed to page templates.
+type PageData struct {
+	Title      string
+	MenuGroups []MenuGroup
+	ShowClock  bool
+}
+
+// MenuGroup represents a dropdown menu in the navbar.
+type MenuGroup struct {
+	LabelHTML template.HTML
+	Items     []MenuItem
+}
+
+// MenuItem represents a single menu item.
+type MenuItem struct {
+	LabelHTML template.HTML
+	URL       string
+	IsDivider bool
+}
+
+// DefaultMenuBar returns the standard menu configuration.
+func DefaultMenuBar() PageData {
+	return PageData{
+		ShowClock: true,
+		MenuGroups: []MenuGroup{
+			{
+				LabelHTML: template.HTML(`<span class="red-168-text">F</span>ile`),
+				Items: []MenuItem{
+					{LabelHTML: template.HTML(`<span class="red-168-text">N</span>ew`), URL: "#!"},
+					{LabelHTML: template.HTML(`<span class="red-168-text">O</span>pen`), URL: "#!"},
+					{LabelHTML: template.HTML(`<span class="red-168-text">S</span>ave`), URL: "#!"},
+					{LabelHTML: template.HTML(`Save <span class="red-168-text">A</span>s`), URL: "#!"},
+					{IsDivider: true},
+					{LabelHTML: template.HTML(`<span class="red-168-text">E</span>xit`), URL: "#!"},
+				},
+			},
+			{
+				LabelHTML: template.HTML(`<span class="red-168-text">E</span>dit`),
+				Items: []MenuItem{
+					{LabelHTML: template.HTML(`<span class="red-168-text">C</span>ut`), URL: "#!"},
+					{LabelHTML: template.HTML(`C<span class="red-168-text">o</span>py`), URL: "#!"},
+					{LabelHTML: template.HTML(`<span class="red-168-text">P</span>aste`), URL: "#!"},
+				},
+			},
+			{
+				LabelHTML: template.HTML(`<span class="red-168-text">H</span>elp`),
+				Items: []MenuItem{
+					{LabelHTML: template.HTML(`<span class="red-168-text">D</span>ocumentation`), URL: "#!"},
+					{LabelHTML: template.HTML(`<span class="red-168-text">A</span>bout`), URL: "#!"},
+				},
+			},
+		},
+	}
+}
+
+// AdminMenuBar returns a menu configuration with admin options.
+func AdminMenuBar() PageData {
+	data := DefaultMenuBar()
+	data.MenuGroups = append(data.MenuGroups, MenuGroup{
+		LabelHTML: template.HTML(`<span class="red-168-text">A</span>dmin`),
+		Items: []MenuItem{
+			{LabelHTML: template.HTML(`<span class="red-168-text">U</span>sers`), URL: "/admin/users"},
+			{LabelHTML: template.HTML(`<span class="red-168-text">S</span>ettings`), URL: "/admin/settings"},
+			{LabelHTML: template.HTML(`<span class="red-168-text">L</span>ogs`), URL: "/admin/logs"},
+		},
+	})
+	return data
+}