improve charts

cmd/ingestd/web.go

@@ -27,7 +27,6 @@ type dashboardResponse struct {
 	GeneratedAt  time.Time             `json:"generated_at"`
 	Site         string                `json:"site"`
 	Model        string                `json:"model"`
-	OpenMeteoURL string                `json:"open_meteo_url,omitempty"`
 	RangeStart   time.Time             `json:"range_start"`
 	RangeEnd     time.Time             `json:"range_end"`
 	Observations []db.ObservationPoint `json:"observations"`
@@ -53,6 +52,12 @@ func runWebServer(ctx context.Context, d *db.DB, site providers.Site, model, add
 		w.Header().Set("Content-Type", "application/json")
 		_, _ = w.Write([]byte(`{"ok":true}`))
 	})
+	mux.HandleFunc("/chart", func(w http.ResponseWriter, r *http.Request) {
+		serveIndex(w, sub)
+	})
+	mux.HandleFunc("/chart/", func(w http.ResponseWriter, r *http.Request) {
+		serveIndex(w, sub)
+	})
 	mux.Handle("/", http.FileServer(http.FS(sub)))
 
 	srv := &http.Server{
@@ -82,6 +87,16 @@ func runWebServer(ctx context.Context, d *db.DB, site providers.Site, model, add
 	}
 }
 
+func serveIndex(w http.ResponseWriter, sub fs.FS) {
+	b, err := fs.ReadFile(sub, "index.html")
+	if err != nil {
+		http.Error(w, "not found", http.StatusNotFound)
+		return
+	}
+	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	_, _ = w.Write(b)
+}
+
 func (s *webServer) handleDashboard(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodGet {
 		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
@@ -154,16 +169,10 @@ func (s *webServer) handleDashboard(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	openMeteoURL, err := providers.OpenMeteoRequestURL(s.site, s.model)
-	if err != nil {
-		log.Printf("web dashboard open-meteo url error: %v", err)
-	}
-
 	resp := dashboardResponse{
 		GeneratedAt:  time.Now().UTC(),
 		Site:         s.site.Name,
 		Model:        s.model,
-		OpenMeteoURL: openMeteoURL,
 		RangeStart:   start,
 		RangeEnd:     end,
 		Observations: observations,