[feature/backend] implement /users handler + switch to username + add display name + user management cli

backend/cmd/server.go

@@ -0,0 +1,89 @@
+package cmd
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"tss-rocks-be/internal/config"
+	"tss-rocks-be/internal/server"
+	"tss-rocks-be/pkg/logger"
+)
+
+func GetServerCmd() *cobra.Command {
+	var configPath string
+
+	cmd := &cobra.Command{
+		Use:   "server",
+		Short: "Start the server",
+		Long:  `Start the server with the specified configuration.`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// Load configuration
+			cfg, err := config.Load(configPath)
+			if err != nil {
+				return err
+			}
+
+			// Setup logger
+			logger.Setup(cfg)
+
+			// Create a context that can be cancelled
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			// Set up signal handling
+			sigChan := make(chan os.Signal, 1)
+			signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+
+			// Create ent client
+			client := server.NewEntClient(cfg)
+			if client == nil {
+				log.Fatal().Msg("Failed to create database client")
+			}
+			defer client.Close()
+
+			// Run the auto migration tool
+			if err := client.Schema.Create(ctx); err != nil {
+				log.Fatal().Err(err).Msg("Failed to create schema resources")
+			}
+
+			// Create and start server
+			srv, err := server.New(cfg, client)
+			if err != nil {
+				log.Fatal().Err(err).Msg("Failed to create server")
+			}
+
+			// Start server in a goroutine
+			go func() {
+				if err := srv.Start(); err != nil {
+					log.Fatal().Err(err).Msg("Failed to start server")
+				}
+			}()
+
+			// Wait for interrupt signal
+			sig := <-sigChan
+			log.Info().Msgf("Received signal: %v", sig)
+
+			// Attempt graceful shutdown with timeout
+			log.Info().Msg("Shutting down server...")
+			shutdownCtx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+			defer cancel()
+
+			if err := srv.Shutdown(shutdownCtx); err != nil {
+				log.Error().Err(err).Msg("Server forced to shutdown")
+				os.Exit(1)
+			}
+
+			return nil
+		},
+	}
+
+	// Add flags
+	cmd.Flags().StringVarP(&configPath, "config", "c", "config/config.yaml", "path to config file")
+
+	return cmd
+}