ublic class RentalRequestPresenter extends Presenter implements RentalRequestInterface.Presenter {

    private ApiInterface apiInterface;

    private RentalRequestInterface.View view;
    private RentalRequest rentalRequest;

    @Inject public RentalRequestPresenter(ApiInterface apiInterface) {
        this.apiInterface = apiInterface;
    }

    @Override
    public void setView(RentalRequestInterface.View view) {
        this.view = view;
    }

    @Override
    public void setRentalRequest(@NonNull RentalRequest rentalRequest) {
        this.rentalRequest = rentalRequest;
        view.displayRentalRequest(rentalRequest);
    }

    @Override
    public boolean isRentalRequestChanged() {
        return (rentalRequest.note != null && !rentalRequest.note.isEmpty()) ||
                (rentalRequest.firstName != null && !rentalRequest.user.firstName.endsWith(rentalRequest.firstName)) ||
                (rentalRequest.lastName != null && !rentalRequest.user.lastName.endsWith(rentalRequest.lastName)) ||
                (rentalRequest.telephoneNumber != null && !rentalRequest.user.telephoneNumber.endsWith(rentalRequest.telephoneNumber));
    }

    public boolean isUserLoaded() {
        return !StringUtils.str(rentalRequest.user.city).isEmpty()
                && !StringUtils.str(rentalRequest.user.street).isEmpty();
    }

    @Override
    public void onContactDataClick(){
        if (rentalRequest.user == null) {
            view.showUserLoadingBlocker();
            return;
        }
        view.editUserData(rentalRequest);
    }

    @Override
    public void onCommentAddClicked() {
        view.editUserComment(rentalRequest);
    }


    @Override
    public void onSubmitClicked() {
        if (rentalRequest.user == null) return;
        if (!isUserLoaded()) return;
        if (StringUtils.str(rentalRequest.firstName).isEmpty() ||
                StringUtils.str(rentalRequest.lastName).isEmpty() ||
                StringUtils.str(rentalRequest.telephoneNumber).isEmpty()) return;
        view.setSendProgress(true);
        apiInterface
                .sendRentalRequest(rentalRequest.getFieldMap())
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(rrSubmitObserver);
    }

    /**
     *  This observer reacts on rental request submit
     */
    protected Observer<BaseResponse> rrSubmitObserver = new Observer<BaseResponse>() {

        @Override
        public void onCompleted() {

        }

        @Override
        public void onError(Throwable e) {
            view.setSendProgress(false);
            view.showSubmittingError(null);
        }

        @Override
        public void onNext(BaseResponse baseResponse) {
            view.setSendProgress(false);
            if (baseResponse.status) {
                view.onRentalRequestSent(rentalRequest);
            } else {
                view.showSubmittingError(baseResponse.getMesages());
            }
        }
    };

}