feat: debug-endpoints (#110)

* reorg + pprof endpoints

* fix spacing issue

* fix generation directory

backend/app/api/handlers/debughandlers/debug.go

@@ -0,0 +1,16 @@
+package debughandlers
+
+import (
+	"expvar"
+	"net/http"
+	"net/http/pprof"
+)
+
+func New(mux *http.ServeMux) {
+	mux.HandleFunc("/debug/pprof", pprof.Index)
+	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
+	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+	mux.Handle("/debug/vars", expvar.Handler())
+}

backend/app/api/main.go

@@ -2,13 +2,14 @@ package main
 
 import (
 	"context"
+	"net/http"
 	"os"
 	"path/filepath"
 	"time"
 
 	atlas "ariga.io/atlas/sql/migrate"
 	"entgo.io/ent/dialect/sql/schema"
-	"github.com/hay-kot/homebox/backend/app/api/docs"
+	"github.com/hay-kot/homebox/backend/app/api/static/docs"
 	"github.com/hay-kot/homebox/backend/ent"
 	"github.com/hay-kot/homebox/backend/internal/config"
 	"github.com/hay-kot/homebox/backend/internal/migrations"
@@ -153,5 +154,14 @@ func run(cfg *config.Config) error {
 		app.SetupDemo()
 	}
 
+	if cfg.Debug.Enabled {
+		debugrouter := app.debugRouter()
+		go func() {
+			if err := http.ListenAndServe(":"+cfg.Debug.Port, debugrouter); err != nil {
+				log.Fatal().Err(err).Msg("failed to start debug server")
+			}
+		}()
+	}
+
 	return app.server.Start(routes)
 }

backend/app/api/routes.go

@@ -11,8 +11,9 @@ import (
 	"path/filepath"
 
 	"github.com/go-chi/chi/v5"
-	_ "github.com/hay-kot/homebox/backend/app/api/docs"
-	v1 "github.com/hay-kot/homebox/backend/app/api/v1"
+	"github.com/hay-kot/homebox/backend/app/api/handlers/debughandlers"
+	v1 "github.com/hay-kot/homebox/backend/app/api/handlers/v1"
+	_ "github.com/hay-kot/homebox/backend/app/api/static/docs"
 	"github.com/hay-kot/homebox/backend/internal/repo"
 	"github.com/rs/zerolog/log"
 	httpSwagger "github.com/swaggo/http-swagger" // http-swagger middleware
@@ -23,10 +24,17 @@ const prefix = "/api"
 var (
 	ErrDir = errors.New("path is dir")
 
-	//go:embed all:public/*
+	//go:embed all:static/public/*
 	public embed.FS
 )
 
+func (a *app) debugRouter() *http.ServeMux {
+	dbg := http.NewServeMux()
+	debughandlers.New(dbg)
+
+	return dbg
+}
+
 // registerRoutes registers all the routes for the API
 func (a *app) newRouter(repos *repo.AllRepos) *chi.Mux {
 	registerMimes()

backend/internal/config/conf.go

@@ -24,6 +24,12 @@ type Config struct {
 	Swagger           SwaggerConf `yaml:"swagger"`
 	Demo              bool        `yaml:"demo"`
 	AllowRegistration bool        `yaml:"disable_registration" conf:"default:true"`
+	Debug             DebugConf   `yaml:"debug"`
+}
+
+type DebugConf struct {
+	Enabled bool   `yaml:"enabled" conf:"default:false"`
+	Port    string `yaml:"port" conf:"default:4000"`
 }
 
 type SwaggerConf struct {