backend/router.go

package main

import (
	"net/http"
	"strings"
	"super-frpc/postLog"
)

func setupRoutes() {
	postLog.Info("Setting up routes...")
	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/") { // Check if path is at least as long as the base path
			SendErrorResponse(w, http.StatusNotFound, "invalid path")
			return
		}

		remainingPath := path[len("/frpcAct/instanceMgr/"):] // Get the remaining path after the base path

		if r.Method == http.MethodGet { // Handle `/list` and `/list/<instanceName>` by GET request
			if remainingPath == "list" {
				ListInstancesHandler(w, r)
				return
			}

			instanceName := strings.Trim(remainingPath, "/") // Get the instance name from the remaining path
			if instanceName != "" {
				ListInstancesHandler(w, r)
				return
			}
		}

		if r.Method == http.MethodPost { // Handle `/create`, `/delete`, and `/modify/<field>` by POST request
			if remainingPath == "create" {
				CreateInstanceHandler(w, r)
				return
			}

			if remainingPath == "delete" {
				DeleteInstanceHandler(w, r)
				return
			}

			if strings.HasPrefix(remainingPath, "modify/") {
				parts := strings.SplitN(remainingPath, "/", 2)
				if len(parts) == 2 {
					field := parts[1]
					ModifyInstanceHandler(w, r, field)
					return
				}
			}
		}

		SendErrorResponse(w, http.StatusNotFound, "endpoint not found") // Send error response if no endpoint is found
	})
}