Bluemage/go/cmd/bluemage/serve/serve.go

package serve

import (
	"context"
	"errors"
	"log/slog"
	"net/http"
	"os"
	"time"

	"connectrpc.com/connect"
	"github.com/spf13/cobra"
	"github.com/stephenafamo/bob"
	"github.com/tigorlazuardi/bluemage/go/api"
	"github.com/tigorlazuardi/bluemage/go/gen/proto/device/v1/v1connect"
	"github.com/tigorlazuardi/bluemage/go/pkg/errs"
	"github.com/tigorlazuardi/bluemage/go/pkg/log"
	"github.com/tigorlazuardi/bluemage/go/server"
	"golang.org/x/net/http2"
	"golang.org/x/net/http2/h2c"
)

var Cmd = &cobra.Command{
	Use: "serve",
	RunE: func(cmd *cobra.Command, args []string) error {
		db, err := bob.Open("sqlite3", "file:data.db")
		if err != nil {
			return errs.Wrap(err, "failed to open database")
		}

		logOutput := log.WrapOsFile(os.Stderr)
		prettyHandler := log.NewPrettyHandler(logOutput, nil)
		slog.SetDefault(slog.New(prettyHandler))

		api := &api.API{
			DB: db,
		}

		handler := &server.Server{
			DeviceHandler: server.DeviceHandler{
				API: api,
			},
		}

		mux := http.NewServeMux()
		mux.Handle(v1connect.NewDeviceServiceHandler(handler, connect.WithInterceptors(server.LogInterceptor())))

		server := &http.Server{
			Addr:    ":8080",
			Handler: h2c.NewHandler(server.WithCORS(mux), &http2.Server{}),
		}

		go func() {
			<-cmd.Context().Done()
			slog.Info("Exit signal received. Shutting down server")
			shutdownCtx, cancel := context.WithTimeout(context.Background(), time.Second*5)
			defer cancel()
			_ = server.Shutdown(shutdownCtx)
		}()

		slog.Info("ConnectRPC server started", "addr", server.Addr)
		err = server.ListenAndServe()
		if err != nil && !errors.Is(err, http.ErrServerClosed) {
			return errs.Wrap(err, "failed to serve")
		}
		return errors.Join(db.Close())
	},
	SilenceUsage: true,
}