refactor: extract server from main.go to it's own package

cmd/yggdrasil/main.go

@@ -2,16 +2,15 @@ package main
 
 import (
 	"context"
-	"fmt"
 	"os/signal"
 	"syscall"
-	"time"
 
-	fiberzap "github.com/gofiber/contrib/fiberzap/v2"
+	"gitlab.mareshq.com/hq/yggdrasil/internal/server"
-	"github.com/gofiber/fiber/v2"
 	"go.uber.org/zap"
 )
 
+//go:generate go run github.com/deepmap/oapi-codegen/v2/cmd/oapi-codegen --config=../../oapi-codegen.yaml ../../api/v1/openapi.yaml
+
 var port = 3000
 
 func main() {
@@ -20,45 +19,7 @@ func main() {
 
 	logger := zap.Must(zap.NewDevelopment())
 	defer logger.Sync()
-	sugared := logger.Sugar()
 
-	config := fiber.Config{
+	server := server.NewServer(port, logger)
-		DisableStartupMessage: true,
+	server.Run(shutdownCtx)
-
-		IdleTimeout:  10 * time.Second,
-		ReadTimeout:  10 * time.Second,
-		WriteTimeout: 10 * time.Second,
-	}
-
-	app := fiber.New(config)
-
-	app.Get("/", func(c *fiber.Ctx) error {
-		return c.SendString("Hello, World!")
-	})
-
-	app.Use(fiberzap.New(fiberzap.Config{
-		Logger: logger,
-	}))
-
-	go func() {
-		err := app.Listen(fmt.Sprintf(":%d", port))
-		if err != nil {
-			panic(err)
-		}
-	}()
-
-	sugared.Infow("Yggdrasil is now running", "port", port)
-
-	<-shutdownCtx.Done()
-	stop()
-
-	sugared.Infoln("Shutting down gracefully...")
-	err := app.ShutdownWithTimeout(10 * time.Second)
-	if err != nil {
-		panic(err)
-	}
-
-	// Cleanup code here
-
-	sugared.Infoln("Yggdrasil shut down gracefully.")
 }

internal/server/server.go

@@ -0,0 +1,67 @@
+package server
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	fiberzap "github.com/gofiber/contrib/fiberzap/v2"
+	"github.com/gofiber/fiber/v2"
+	"go.uber.org/zap"
+)
+
+type Server struct {
+	port   int
+	logger *zap.Logger
+}
+
+func NewServer(port int, logger *zap.Logger) *Server {
+	return &Server{
+		port:   port,
+		logger: logger,
+	}
+}
+
+func (s *Server) Run(ctx context.Context) {
+	sugared := s.logger.Sugar()
+
+	config := fiber.Config{
+		DisableStartupMessage: true,
+
+		IdleTimeout:  10 * time.Second,
+		ReadTimeout:  10 * time.Second,
+		WriteTimeout: 10 * time.Second,
+	}
+
+	app := fiber.New(config)
+
+	app.Use(fiberzap.New(fiberzap.Config{
+		Logger: s.logger,
+	}))
+
+	app.Get("/", func(c *fiber.Ctx) error {
+		return c.SendString("Hello, World!")
+	})
+
+	go func() {
+		err := app.Listen(fmt.Sprintf(":%d", s.port))
+		if err != nil {
+			panic(err)
+		}
+	}()
+
+	sugared.Infow("HTTP server is now running", "port", s.port)
+
+	<-ctx.Done()
+	shutdownBegan := time.Now()
+
+	sugared.Infoln("Shutting HTTP server down gracefully...")
+	err := app.ShutdownWithTimeout(10 * time.Second)
+	if err != nil {
+		panic(err)
+	}
+
+	// Cleanup code here
+
+	sugared.Infow("HTTP server shut down gracefully.", "took", time.Since(shutdownBegan))
+}