package sso

import (
	"context"
	"net/http"
	"strconv"
	"time"

	"imuslab.com/zoraxy/mod/utils"
)

/*
	server.go

	This is the router for the SSO authentication interface

*/

func (h *SSOHandler) InitSSOPortal(portalServerPort int) {
	//Create a new web server for the SSO portal
	pmux := http.NewServeMux()
	fs := http.FileServer(http.FS(staticFiles))
	pmux.Handle("/", fs)

	//Register API endpoint for the SSO portal
	pmux.HandleFunc("/login", h.HandleLogin)
	//Add more API endpoints here

	h.ssoPortalMux = pmux
}

// StartSSOPortal start the SSO portal server
func (h *SSOHandler) StartSSOPortal() error {
	h.ssoPortalServer = &http.Server{
		Addr:    ":" + strconv.Itoa(h.Config.PortalServerPort),
		Handler: h.ssoPortalMux,
	}
	err := h.ssoPortalServer.ListenAndServe()
	if err != nil {
		h.Log("Failed to start SSO portal server", err)
	}
	return err
}

// StopSSOPortal stop the SSO portal server
func (h *SSOHandler) StopSSOPortal() error {
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()
	err := h.ssoPortalServer.Shutdown(ctx)
	if err != nil {
		h.Log("Failed to stop SSO portal server", err)
		return err
	}
	return nil
}

// HandleLogin handle the login request
func (h *SSOHandler) HandleLogin(w http.ResponseWriter, r *http.Request) {
	//Handle the login request
	username, err := utils.PostPara(r, "username")
	if err != nil {
		utils.SendErrorResponse(w, "invalid username or password")
		return
	}

	password, err := utils.PostPara(r, "password")
	if err != nil {
		utils.SendErrorResponse(w, "invalid username or password")
		return
	}

	rememberMe, err := utils.PostBool(r, "remember_me")
	if err != nil {
		rememberMe = false
	}

	//Check if the user exists
	userEntry, err := h.SSO_GetUser(username)
	if err != nil {
		utils.SendErrorResponse(w, "user not found")
		return
	}

	//Check if the password is correct
	if !userEntry.VerifyPassword(password) {
		utils.SendErrorResponse(w, "incorrect password")
		return
	}

	//Create a new session for the user
	session, _ := h.cookieStore.Get(r, "Zoraxy-SSO")
	session.Values["username"] = username
	if rememberMe {
		session.Options.MaxAge = 86400 * 15 //15 days
	} else {
		session.Options.MaxAge = 3600 //1 hour
	}
	session.Save(r, w) //Save the session

	utils.SendOK(w)
}