wmde / FundraisingFrontend

var _ = require( 'underscore' ),

	validationResult = require( './../validation_result' ),

	PAYMENT_TYPE_DEBIT_VALUE = 'BEZ',

	hasValidDirectDebitPayment = function ( state ) {

		return (

			state.membershipFormContent.paymentType === PAYMENT_TYPE_DEBIT_VALUE &&

			state.validity.bankData === true

		);

	},

module.exports = function ( state ) {

	var result = _.clone( validationResult ),

		respectiveValidators = _.pick( state.membershipInputValidation, [ 'iban', 'bic', 'accountNumber', 'bankCode' ] )

	;

	result.dataEntered = state.membershipFormContent.paymentType !== null || _.contains( _.pluck( respectiveValidators, 'dataEntered' ), true );

	if ( hasValidDirectDebitPayment( state ) || hasOtherValidPayment( state ) ) {

		result.isValid = true;

	}

	else if ( !_.contains( _.pluck( respectiveValidators, 'isValid' ), false ) ) {

		result.isValid = null;

	}

	else {

		result.isValid = false;

	}

	return result;

};