Initial commit — energy dashboard frontend (TimescaleDB + Vue/Chart.js)

main.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io/fs"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"energy-frontend/internal/api"
+	"energy-frontend/internal/config"
+)
+
+func main() {
+	cfg := config.Load()
+
+	frontendFS, _ := fs.Sub(frontendDist, "dist")
+	router := api.NewRouter(*cfg, frontendFS)
+
+	addr := fmt.Sprintf(":%d", cfg.Server.Port)
+	srv := &http.Server{
+		Addr:         addr,
+		Handler:      router,
+		ReadTimeout:  15 * time.Second,
+		WriteTimeout: 30 * time.Second,
+		IdleTimeout:  60 * time.Second,
+	}
+
+	go func() {
+		slog.Info("starting server", "addr", addr)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			slog.Error("server error", "error", err)
+			os.Exit(1)
+		}
+	}()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
+	<-sigChan
+
+	slog.Info("shutting down")
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	srv.Shutdown(ctx)
+}