Add experimental http server

1 files changed, 64 insertions, 0 deletions

diff --git a/cmd/server.go b/cmd/server.go
new file mode 100644
index 0000000..374e5f4
--- /dev/null
+++ b/cmd/server.go
@@ -0,0 +1,64 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/jpappel/atlas/pkg/data"
+	"github.com/jpappel/atlas/pkg/server"
+)
+
+type ServerFlags struct {
+	Address string
+	Port    int
+}
+
+func setupServerFlags(args []string, fs *flag.FlagSet, flags *ServerFlags) {
+	fs.StringVar(&flags.Address, "address", "", "the address to listen on")
+	fs.IntVar(&flags.Port, "port", 8080, "the port to bind to")
+
+	fs.Parse(args)
+}
+
+func runServer(gFlags GlobalFlags, sFlags ServerFlags, db *data.Query) byte {
+	addr := fmt.Sprintf("%s:%d", sFlags.Address, sFlags.Port)
+
+	s := http.Server{Addr: addr, Handler: server.New(db)}
+
+	serverErrors := make(chan error, 1)
+	exit := make(chan os.Signal, 1)
+
+	signal.Notify(exit, syscall.SIGTERM, os.Interrupt)
+
+	slog.Info("Starting server on", slog.String("addr", addr))
+	go func(serverErrors chan<- error) {
+		if err := s.ListenAndServe(); err != nil {
+			serverErrors <- err
+		}
+	}(serverErrors)
+
+	select {
+	case <-exit:
+		slog.Info("Recieved signal to shutdown")
+	case err := <-serverErrors:
+		slog.Error("Server error", err)
+	}
+
+	slog.Info("Shutting down server")
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+
+	if err := s.Shutdown(ctx); err != nil {
+		slog.Error("Error shutting down server", err)
+		return 1
+	}
+
+	return 0
+}