prompt 1,2,3

internal/app/app.go

@@ -0,0 +1,55 @@
+package app
+
+import (
+	"fmt"
+	"strings"
+
+	"trustcontact/internal/config"
+	"trustcontact/internal/db"
+	apphttp "trustcontact/internal/http"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/middleware/cors"
+	"github.com/gofiber/fiber/v2/middleware/session"
+)
+
+func NewApp(cfg *config.Config) (*fiber.App, error) {
+	if cfg == nil {
+		return nil, fmt.Errorf("config is nil")
+	}
+
+	app := fiber.New()
+
+	app.Use(cors.New(cors.Config{
+		AllowOrigins:     strings.Join(cfg.CORS.Origins, ","),
+		AllowHeaders:     strings.Join(cfg.CORS.Headers, ","),
+		AllowMethods:     strings.Join(cfg.CORS.Methods, ","),
+		AllowCredentials: cfg.CORS.Credentials,
+	}))
+
+	store := session.New(session.Config{
+		CookieHTTPOnly: true,
+		CookieSecure:   cfg.Env == config.EnvProd,
+	})
+
+	database, err := db.Open(cfg)
+	if err != nil {
+		return nil, fmt.Errorf("open db: %w", err)
+	}
+
+	if cfg.AutoMigrate {
+		if err := db.Migrate(database); err != nil {
+			return nil, fmt.Errorf("migrate db: %w", err)
+		}
+	}
+
+	if cfg.SeedEnabled && cfg.Env == config.EnvDevelop {
+		if err := db.Seed(database); err != nil {
+			return nil, fmt.Errorf("seed db: %w", err)
+		}
+	}
+
+	apphttp.RegisterRoutes(app, store, database, cfg)
+
+	return app, nil
+}