better dev runner, bug fixes, design changes, and more

server_dev.go

@@ -0,0 +1,69 @@
+//go:build dev
+// +build dev
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"os"
+	"os/exec"
+	"os/signal"
+	"syscall"
+
+	"github.com/labstack/echo/v4"
+	echoMiddleware "github.com/labstack/echo/v4/middleware"
+)
+
+func init() {
+	initUi = func(e *echo.Echo) {
+		shutdown := make(chan os.Signal, 1)
+		signal.Notify(shutdown, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
+		go func() {
+			cmd := exec.Command("bun", "--cwd=ui", "run", "dev")
+			cmd.Stderr = os.Stderr
+
+			// use a preocess group since otherwise the node processes spawned by bun wont die
+			cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+			err := cmd.Start()
+			if err != nil {
+				if err := syscall.Kill(-cmd.Process.Pid, syscall.SIGTERM); err != nil {
+					fmt.Println("Error sending SIGTERM to Nuxt dev server group:", err)
+				}
+
+				fmt.Println("Error starting Nuxt dev server:", err)
+				return
+			}
+
+			go func() {
+				<-shutdown
+
+				if err := syscall.Kill(-cmd.Process.Pid, syscall.SIGTERM); err != nil {
+					fmt.Println("Error sending SIGTERM to Nuxt dev server group:", err)
+				}
+			}()
+
+			if err := cmd.Wait(); err != nil {
+				fmt.Println("Error waiting for Nuxt dev server to exit:", err)
+			}
+
+			fmt.Println("Nuxt dev server stopped")
+
+			if err := e.Shutdown(context.Background()); err != nil {
+				fmt.Println("Error shutting down HTTP server:", err)
+			}
+		}()
+
+		target := "localhost:3000"
+		e.Group("/*").Use(echoMiddleware.ProxyWithConfig(echoMiddleware.ProxyConfig{
+			Balancer: echoMiddleware.NewRoundRobinBalancer([]*echoMiddleware.ProxyTarget{
+				{URL: &url.URL{
+					Scheme: "http",
+					Host:   target,
+				}},
+			}),
+		}))
+	}
+}