package server

import (
	"net/http"

	"github.com/prometheus/client_golang/prometheus/promhttp"

	httppkg "kanhole/pkg/util/http"
	netpkg "kanhole/pkg/util/net"
	adminapi "kanhole/server/http"
)

func (svr *Service) registerRouteHandlers(helper *httppkg.RouterRegisterHelper) {
	helper.Router.HandleFunc("/healthz", healthz)

	// root redirects to admin setup
	helper.Router.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		http.Redirect(w, r, "/admin/setup", http.StatusFound)
	})

	subRouter := helper.Router.NewRoute().Subrouter()

	subRouter.Use(helper.AuthMiddleware)
	subRouter.Use(httppkg.NewRequestLogger)

	// metrics
	if svr.cfg.EnablePrometheus {
		subRouter.Handle("/metrics", promhttp.Handler())
	}

	apiController := adminapi.NewController(svr.cfg, svr.clientRegistry, svr.pxyManager)

	// apis
	subRouter.HandleFunc("/api/serverinfo", httppkg.MakeHTTPHandlerFunc(apiController.APIServerInfo)).Methods("GET")
	subRouter.HandleFunc("/api/proxy/{type}", httppkg.MakeHTTPHandlerFunc(apiController.APIProxyByType)).Methods("GET")
	subRouter.HandleFunc("/api/proxy/{type}/{name}", httppkg.MakeHTTPHandlerFunc(apiController.APIProxyByTypeAndName)).Methods("GET")
	subRouter.HandleFunc("/api/proxies/{name}", httppkg.MakeHTTPHandlerFunc(apiController.APIProxyByName)).Methods("GET")
	subRouter.HandleFunc("/api/traffic/{name}", httppkg.MakeHTTPHandlerFunc(apiController.APIProxyTraffic)).Methods("GET")
	subRouter.HandleFunc("/api/clients", httppkg.MakeHTTPHandlerFunc(apiController.APIClientList)).Methods("GET")
	subRouter.HandleFunc("/api/clients/{key}", httppkg.MakeHTTPHandlerFunc(apiController.APIClientDetail)).Methods("GET")
	subRouter.HandleFunc("/api/proxies", httppkg.MakeHTTPHandlerFunc(apiController.DeleteProxies)).Methods("DELETE")

	// view
	subRouter.Handle("/favicon.ico", http.FileServer(helper.AssetsFS)).Methods("GET")
	subRouter.PathPrefix("/static/").Handler(
		netpkg.MakeHTTPGzipHandler(http.StripPrefix("/static/", http.FileServer(helper.AssetsFS))),
	).Methods("GET")

	// admin routes (htmx-based dashboard)
	if svr.adminHandler != nil {
		svr.adminHandler.RegisterRoutes(helper.Router)
	}
}

func healthz(w http.ResponseWriter, _ *http.Request) {
	w.WriteHeader(200)
}