backend/router.go

package main

import (
	"net/http"
	"strings"
)

func setupRoutes() {
	http.HandleFunc("/register", RegisterHandler)
	http.HandleFunc("/login", LoginHandler)

	http.HandleFunc("/frpcAct/instanceMgr/create", CreateInstanceHandler)
	http.HandleFunc("/frpcAct/instanceMgr/list", ListInstancesHandler)

	http.HandleFunc("/frpcAct/instanceMgr/", func(w http.ResponseWriter, r *http.Request) {
		path := r.URL.Path
		if len(path) < len("/frpcAct/instanceMgr/") {
			SendErrorResponse(w, http.StatusNotFound, "invalid path")
			return
		}

		remainingPath := path[len("/frpcAct/instanceMgr/"):]

		if r.Method == http.MethodGet {
			if remainingPath == "list" {
				ListInstancesHandler(w, r)
				return
			}

			instanceName := strings.Trim(remainingPath, "/")
			if instanceName != "" {
				ListInstancesHandler(w, r)
				return
			}
		}

		if r.Method == http.MethodPost {
			if remainingPath == "create" {
				CreateInstanceHandler(w, r)
				return
			}

			if strings.HasSuffix(remainingPath, "/delete") {
				instanceName := strings.TrimSuffix(remainingPath, "/delete")
				instanceName = strings.Trim(instanceName, "/")
				DeleteInstanceHandler(w, r, instanceName)
				return
			}

			if strings.Contains(remainingPath, "/modify/") {
				parts := strings.SplitN(remainingPath, "/modify/", 2)
				if len(parts) == 2 {
					instanceName := strings.Trim(parts[0], "/")
					ModifyInstanceHandler(w, r, instanceName)
					return
				}
			}
		}

		SendErrorResponse(w, http.StatusNotFound, "endpoint not found")
	})
}