package server

import (
	"heckel.io/ntfy/user"
	"net/http"
)

func (s *Server) handleAccessAllow(w http.ResponseWriter, r *http.Request, v *visitor) error {
	req, err := readJSONWithLimit[apiAccessAllowRequest](r.Body, jsonBodyBytesLimit, false)
	if err != nil {
		return err
	}
	permission, err := user.ParsePermission(req.Permission)
	if err != nil {
		return errHTTPBadRequestPermissionInvalid
	}
	if err := s.userManager.AllowAccess(req.Username, req.Topic, permission); err != nil {
		return err
	}
	return s.writeJSON(w, newSuccessResponse())
}

func (s *Server) handleAccessReset(w http.ResponseWriter, r *http.Request, v *visitor) error {
	req, err := readJSONWithLimit[apiAccessResetRequest](r.Body, jsonBodyBytesLimit, false)
	if err != nil {
		return err
	}
	u, err := s.userManager.User(req.Username)
	if err != nil {
		return err
	}
	if err := s.userManager.ResetAccess(req.Username, req.Topic); err != nil {
		return err
	}
	if err := s.killUserSubscriber(u, req.Topic); err != nil { // This may be a pattern
		return err
	}
	return s.writeJSON(w, newSuccessResponse())
}

func (s *Server) killUserSubscriber(u *user.User, topicPattern string) error {
	topics, err := s.topicsFromPattern(topicPattern)
	if err != nil {
		return err
	}
	for _, t := range topics {
		t.CancelSubscriberUser(u.ID)
	}
	return nil
}