package main

import (
	"context"
	"log"
	"net/http"
	"os"
	"os/signal"
	"time"

	"gitea.avt.data-center.id/othman.suseno/atlas/internal/httpapp"
)

func main() {
	addr := env("PLUTO_HTTP_ADDR", ":8080")

	app, err := httpapp.New(httpapp.Config{
		Addr:         addr,
		TemplatesDir: "web/templates",
		StaticDir:    "web/static",
	})
	if err != nil {
		log.Fatalf("init app: %v", err)
	}

	srv := &http.Server{
		Addr:              addr,
		Handler:           app.Router(),
		ReadHeaderTimeout: 5 * time.Second,
	}

	// Start server
	go func() {
		log.Printf("[pluto-api] listening on %s", addr)
		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("listen: %v", err)
		}
	}()

	// Graceful shutdown
	stop := make(chan os.Signal, 1)
	signal.Notify(stop, os.Interrupt)
	<-stop
	log.Printf("[pluto-api] shutdown requested")

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	if err := srv.Shutdown(ctx); err != nil {
		log.Printf("[pluto-api] shutdown error: %v", err)
	} else {
		log.Printf("[pluto-api] shutdown complete")
	}
}

func env(key, def string) string {
	if v := os.Getenv(key); v != "" {
		return v
	}
	return def
}