package client

import (
	"encoding/json"
	"fmt"
	"io"
	"net"
	"net/http"

	"git.faercol.me/faercol/http-boot-server/bootserver/bootoption"
	"git.faercol.me/faercol/http-boot-server/bootserver/helpers"
	"git.faercol.me/faercol/http-boot-server/bootserver/services"
	"github.com/sirupsen/logrus"
)

const EnrollRoute = "/enroll"

type EnrollController struct {
	clientService *services.ClientHandlerService
	l             *logrus.Logger
}

func NewEnrollController(l *logrus.Logger) *EnrollController {
	return &EnrollController{
		clientService: services.NewClientHandlerService(),
		l:             l,
	}
}

func (ec *EnrollController) enrollMachine(w http.ResponseWriter, r *http.Request) (int, error) {
	if r.Method != http.MethodPost {
		return http.StatusMethodNotAllowed, nil
	}
	clientIP, _, err := net.SplitHostPort(r.RemoteAddr)
	if err != nil {
		return http.StatusInternalServerError, fmt.Errorf("failed to read remote IP: %w", err)
	}

	dat, err := io.ReadAll(r.Body)
	if err != nil {
		return http.StatusInternalServerError, fmt.Errorf("failed to read body: %w", err)
	}

	var client bootoption.Client
	if err := json.Unmarshal(dat, &client); err != nil {
		return http.StatusInternalServerError, fmt.Errorf("failed to parse body: %w", err)
	}
	client.IP = clientIP

	ec.clientService.AddClient(&client)
	ec.l.Infof("Added client %s", clientIP)
	return http.StatusAccepted, nil
}

func (ec *EnrollController) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	returncode, err := ec.enrollMachine(w, r)
	if err != nil {
		ec.l.Errorf("Error handling client enrollement: %s", err.Error())
	}
	helpers.HandleResponse(w, r, returncode, nil, ec.l)
}