Add a logout button

authentication/auth.go

@@ -12,12 +12,6 @@ import (
 const sessionName = "session"
 const EmailKey = "email"
 const UserIdKey = "userId"
-const AuthContextKey = "authContext"
-
-type AuthContext struct {
-	Email  string
-	UserId int
-}
 
 func SaveEmailAndUserIdToSessionStore(request *http.Request, writer http.ResponseWriter, store *sessions.CookieStore, email string, userId int) error {
 	session, err := store.New(request, sessionName)

htmx_route.go

@@ -13,6 +13,13 @@ import (
 	htmx "maragu.dev/gomponents-htmx"
 )
 
+const AuthContextKey = "authContext"
+
+type AuthContext struct {
+	Email  string
+	UserId int
+}
+
 type HtmxContext interface {
 	Render(node gomponents.Node)
 	SetError(err error)
@@ -29,6 +36,7 @@ type HtmxContext interface {
 	SetAllRoutes(routes []HtmxRoute)
 	GetAllRoutes() []HtmxRoute
 	GetQueryParams() []HtmxPathParam
+	GetAuthContext() (bool, AuthContext)
 }
 
 type HtmxContextImpl struct {
@@ -40,6 +48,14 @@ type HtmxContextImpl struct {
 	routes       []HtmxRoute
 }
 
+func (c *HtmxContextImpl) GetAuthContext() (bool, AuthContext) {
+	authCtx := c.req.Context().Value(AuthContextKey)
+	if authCtx == nil {
+		return false, AuthContext{}
+	}
+	return true, authCtx.(AuthContext)
+}
+
 func (c *HtmxContextImpl) GetQueryParams() []HtmxPathParam {
 	// Extract query parameters from the current request URL and return them as
 	// a deterministic list of HtmxPathParam. If a key has multiple values,

page.go

@@ -67,10 +67,24 @@ func AddLanguageSelectScript(metadata PageWebsiteMetaData) Node {
 }
 
 func GetNav(c HtmxContext, metadata PageWebsiteMetaData) Node {
+	// Create navigation items from metadata
+	navItems := Map(metadata.NavItems, func(path ActivePath) Node {
+		return CreateNavItem(c, path)
+	})
+
+	// Check if user is authenticated and add logout button if so
+	isAuthenticated, authCtx := c.GetAuthContext()
+	if isAuthenticated {
+		logoutButton := A(
+			Href("/logout"),
+			Text("Logout ("+authCtx.Email+")"),
+			Class("logout-button"),
+		)
+		navItems = append(navItems, logoutButton)
+	}
+
 	return Nav(Class("nav"), Aria("label", "Main Menu"),
-		Map(metadata.NavItems, func(path ActivePath) Node {
-			return CreateNavItem(c, path)
-		}),
+		Group(navItems),
 	)
 }