feat: add handlers to serve template and styles

cmd/web/main.go

@@ -1,7 +1,58 @@
 package main
 
-import "fmt"
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/StevanFreeborn/links.stevanfreeborn.com/internal/handlers"
+	"github.com/StevanFreeborn/links.stevanfreeborn.com/internal/middleware"
+)
 
 func main() {
-	fmt.Println("Hello, World!")
+	mux := http.NewServeMux()
+
+	mux.HandleFunc("/", handlers.Index)
+	mux.HandleFunc("/css/", handlers.CSS)
+
+	loggingMux := middleware.Logging(mux)
+
+	const addr = ":7777"
+
+	server := &http.Server{
+		Addr:    addr,
+		Handler: loggingMux,
+	}
+
+	go func() {
+		fmt.Printf("Starting server on %s\n", addr)
+
+		err := server.ListenAndServe()
+
+		if !errors.Is(err, http.ErrServerClosed) {
+			log.Fatalf("HTTP server error: %v", err)
+		}
+
+		log.Println("Stopped serving new connections.")
+	}()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+	<-sigChan
+
+	shutdownCtx, shutdownRelease := context.WithTimeout(context.Background(), 10*time.Second)
+
+	defer shutdownRelease()
+
+	if err := server.Shutdown(shutdownCtx); err != nil {
+		log.Fatalf("HTTP shutdown error: %v", err)
+	}
+
+	log.Println("Graceful shutdown complete.")
 }