package server

import (
	"net/http"

	"jarl/internal/auth"
	"jarl/internal/engine"
)

// zoneFillPTR: POST /zones/{zone}/fill-ptr adds the PTR records a reverse
// zone lacks for its view's A and AAAA records (docs/reverse.md).
func (s *Server) zoneFillPTR(w http.ResponseWriter, r *http.Request, p *auth.Principal) error {
	st, err := s.state(r)
	if err != nil {
		return err
	}
	z, err := s.zoneByPath(r, st, p)
	if err != nil {
		return err
	}
	return s.mutate(w, r, p, "", []engine.Request{engine.NewRequest(engine.OpZoneFillPTR, z.ID, engine.LinkInput{ZoneID: z.ID})}, nil)
}

// reverseSuggestions: GET /reverse-zones/suggestions lists the reverse
// zones the private views lack for their records' addresses.
func (s *Server) reverseSuggestions(w http.ResponseWriter, r *http.Request, p *auth.Principal) error {
	st, err := s.state(r)
	if err != nil {
		return err
	}
	out := []engine.ReverseSuggestion{}
	for _, sg := range s.eng.ReverseSuggestions(st) {
		if p.CanSeeZone(sg.Zone+".", sg.View) {
			out = append(out, sg)
		}
	}
	writeJSON(w, http.StatusOK, out)
	return nil
}

// reverseDismiss: POST /reverse-zones/dismiss {"view": "internal",
// "prefix": "185.199.108.153/32"} hides a suggestion; /undismiss shows it
// again.
func (s *Server) reverseDismiss(dismiss bool) handler {
	return func(w http.ResponseWriter, r *http.Request, p *auth.Principal) error {
		var in engine.DismissInput
		if err := decodeJSON(r, &in); err != nil {
			return err
		}
		op := engine.OpReverseUndismiss
		if dismiss {
			op = engine.OpReverseDismiss
		}
		return s.mutate(w, r, p, "", []engine.Request{engine.NewRequest(op, 0, in)}, nil)
	}
}