package internal

import (
	"errors"
	"log"
	"net/http"
	"strings"

	"github.com/miekg/dns"
	"gorm.io/gorm"
)

type ZoneRequest struct {
	*Zone

	User      *User  `json:"user,omitempty"`
	RequestID string `json:"id"`
}

type ZoneResponse struct {
	*Zone

	User    *User `json:"user,omitempty"`
	Elapsed int64 `json:"elapsed"`
}

type Zone struct {
	ID     string `json:"id"`
	UserID string `json:"user_id"`
	Body   string `json:"body"`
}

type User struct {
	gorm.Model
	Username       string `json:"name"`
	Password       string
	HashedPassword string
}

func (zone *ZoneRequest) Parse() error {
	zp := dns.NewZoneParser(strings.NewReader(zone.Body), "", "")
	for rr, ok := zp.Next(); ok; rr, ok = zp.Next() {
		log.Println(rr)
	}

	if err := zp.Err(); err != nil {
		log.Println(err)
		return errors.New("unable to parse Zonefile")

	}
	return nil
}

func (zone *ZoneRequest) Bind(r *http.Request) error {
	if zone.Zone == nil {
		return errors.New("missing required zone file fields")
	}
	zone.Zone.Body = strings.ToLower(zone.Zone.Body)
	return nil
}

func NewZoneResponse(zone *Zone) *ZoneResponse {
	resp := &ZoneResponse{Zone: zone}
	if resp.User == nil {
		if user, _ := dbGetUser(resp.UserID); user != nil {
			resp.User = NewUserPayloadResponse(user)
		}
	}

	return resp
}

func NewUserPayloadResponse(user *User) *User {
	return &User{Username: user.Username}
}

func dbGetUser(s string) (*User, error) {
	return &User{Username: "user14651"}, nil
}

func (rd *ZoneResponse) Render(w http.ResponseWriter, r *http.Request) error {
	// Pre-processing before a response is marshalled and sent across the wire
	rd.Elapsed = 10
	return nil
}