package route

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

	"forge.cadoles.com/Cadoles/fake-sms/internal/command"
	"forge.cadoles.com/Cadoles/fake-sms/internal/model"
	"forge.cadoles.com/Cadoles/fake-sms/internal/query"
	"forge.cadoles.com/Cadoles/fake-sms/internal/storm"
	"github.com/go-chi/chi"
	"github.com/pkg/errors"
	"gitlab.com/wpetit/goweb/cqrs"
	"gitlab.com/wpetit/goweb/middleware/container"
	"gitlab.com/wpetit/goweb/service/template"
)

func serveSMSPage(w http.ResponseWriter, r *http.Request) {
	smsID, err := getSMSID(r)
	if err != nil {
		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)

		return
	}

	ctx := r.Context()

	sms, err := openSMS(ctx, smsID)
	if err != nil {
		if errors.Is(err, storm.ErrNotFound) {
			http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)

			return
		}

		panic(errors.Wrap(err, "could not open sms"))
	}

	ctn := container.Must(ctx)
	tmpl := template.Must(ctn)

	data := extendTemplateData(w, r, template.Data{
		"SMS": sms,
	})

	if err := tmpl.RenderPage(w, "sms.html.tmpl", data); err != nil {
		panic(errors.Wrapf(err, "could not render '%s' page", r.URL.Path))
	}
}

func handleSMSDelete(w http.ResponseWriter, r *http.Request) {
	smsID, err := getSMSID(r)
	if err != nil {
		http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)

		return
	}

	ctx := r.Context()
	ctn := container.Must(ctx)
	bus := cqrs.Must(ctn)

	deleteSMS := &command.DeleteSMSRequest{
		SMSID: smsID,
	}

	if _, err := bus.Exec(ctx, deleteSMS); err != nil {
		panic(errors.Wrap(err, "could not delete email"))
	}

	http.Error(w, http.StatusText(http.StatusNoContent), http.StatusNoContent)
}

func getSMSID(r *http.Request) (int, error) {
	rawSMSID := chi.URLParam(r, "id")

	smsID, err := strconv.ParseInt(rawSMSID, 10, 32)
	if err != nil {
		return 0, err
	}

	return int(smsID), nil
}

func openSMS(ctx context.Context, emailID int) (*model.SMS, error) {
	ctn := container.Must(ctx)
	bus := cqrs.Must(ctn)
	req := &query.OpenSMSRequest{
		SMSID: emailID,
	}

	result, err := bus.Query(ctx, req)
	if err != nil {
		return nil, err
	}

	openEmailData, ok := result.Data().(*query.OpenSMSData)
	if !ok {
		return nil, errors.New("unexpected result data")
	}

	return openEmailData.SMS, nil
}