web: show version and API docs link in footer

Display the build version and a link to the API documentation in the
web interface footer.

Signed-off-by: Robin Jarry <robin@jarry.cc>

Author: rjarry

cmd/pw/http/main.go

@@ -37,7 +37,7 @@ func (c *CLI) Run(ctx *pw.Context) error {
 	bus := events.Start(ctx, ctx.DB)
 	defer bus.Shutdown()
 
-	router := web.NewRouter(ctx.Config, ctx.DB, bus)
+	router := web.NewRouter(ctx.Config, ctx.DB, bus, ctx.Version)
 	router.Mount("/", api.NewRouter(ctx.Config, ctx.DB, ctx.Config.Http.BaseURL, bus))
 
 	srv := &http.Server{

pkg/web/layout.templ

@@ -15,6 +15,7 @@ type breadcrumb struct {
 type pageContext struct {
 	User      *db.User
 	CSRFToken string
+	Version   string
 }
 
 templ layout(title string, crumbs []breadcrumb, pc pageContext) {
@@ -60,7 +61,7 @@ templ layout(title string, crumbs []breadcrumb, pc pageContext) {
 				{ children... }
 			</main>
 			<footer>
-				Patchwork
+				Patchwork { pc.Version } | <a href="/api/docs">API</a>
 			</footer>
 		</body>
 	</html>

pkg/web/web.go

@@ -30,7 +30,7 @@ import (
 //go:embed static/*
 var staticFS embed.FS
 
-func NewRouter(cfg *config.Config, database *bun.DB, bus db.EventBus) chi.Router {
+func NewRouter(cfg *config.Config, database *bun.DB, bus db.EventBus, version string) chi.Router {
 	r := chi.NewRouter()
 	r.Use(middleware.Recoverer)
 	r.Use(middleware.StripSlashes)
@@ -40,7 +40,7 @@ func NewRouter(cfg *config.Config, database *bun.DB, bus db.EventBus) chi.Router
 	if _, err := rand.Read(csrfKey); err != nil {
 		panic("generate CSRF key: " + err.Error())
 	}
-	h := &webHandler{cfg: cfg, db: database, csrfKey: csrfKey}
+	h := &webHandler{cfg: cfg, db: database, csrfKey: csrfKey, version: version}
 	r.Use(h.sessionMiddleware)
 
 	sub, _ := fs.Sub(staticFS, "static")
@@ -108,6 +108,7 @@ type webHandler struct {
 	cfg     *config.Config
 	db      *bun.DB
 	csrfKey []byte
+	version string
 }
 
 func intStr(n int) string {
@@ -261,6 +262,7 @@ func (h *webHandler) pageCtx(r *http.Request) pageContext {
 	return pageContext{
 		User:      getWebUser(r),
 		CSRFToken: h.csrfToken(r),
+		Version:   h.version,
 	}
 }