118 lines
4.1 KiB
JavaScript
118 lines
4.1 KiB
JavaScript
/*
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* Copyright (C) 2019 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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function conditionsValidateOptionValue(object, value) {
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if (object.hasOwnProperty('validate') && !object.validate(value)) {
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throw new Error('Invalid value for condition');
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}
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if (object.hasOwnProperty('transform')) {
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value = object.transform(value);
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if (object.hasOwnProperty('validateTransformed') && !object.validateTransformed(value)) {
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throw new Error('Invalid value for condition');
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}
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}
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return value;
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}
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function conditionsNormalizeOptionValue(descriptors, type, operator, optionValue) {
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if (!descriptors.hasOwnProperty(type)) {
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throw new Error('Invalid type');
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}
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const conditionDescriptor = descriptors[type];
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if (!conditionDescriptor.operators.hasOwnProperty(operator)) {
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throw new Error('Invalid operator');
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}
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const operatorDescriptor = conditionDescriptor.operators[operator];
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let transformedValue = conditionsValidateOptionValue(conditionDescriptor, optionValue);
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transformedValue = conditionsValidateOptionValue(operatorDescriptor, transformedValue);
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if (operatorDescriptor.hasOwnProperty('transformReverse')) {
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transformedValue = operatorDescriptor.transformReverse(transformedValue);
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}
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return transformedValue;
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}
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function conditionsTestValueThrowing(descriptors, type, operator, optionValue, value) {
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if (!descriptors.hasOwnProperty(type)) {
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throw new Error('Invalid type');
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}
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const conditionDescriptor = descriptors[type];
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if (!conditionDescriptor.operators.hasOwnProperty(operator)) {
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throw new Error('Invalid operator');
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}
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const operatorDescriptor = conditionDescriptor.operators[operator];
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if (operatorDescriptor.hasOwnProperty('transform')) {
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if (operatorDescriptor.hasOwnProperty('transformCache')) {
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const key = `${optionValue}`;
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const transformCache = operatorDescriptor.transformCache;
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if (transformCache.hasOwnProperty(key)) {
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optionValue = transformCache[key];
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} else {
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optionValue = operatorDescriptor.transform(optionValue);
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transformCache[key] = optionValue;
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}
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} else {
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optionValue = operatorDescriptor.transform(optionValue);
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}
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}
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return operatorDescriptor.test(value, optionValue);
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}
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function conditionsTestValue(descriptors, type, operator, optionValue, value) {
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try {
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return conditionsTestValueThrowing(descriptors, type, operator, optionValue, value);
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} catch (e) {
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return false;
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}
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}
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function conditionsClearCaches(descriptors) {
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for (const type in descriptors) {
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if (!descriptors.hasOwnProperty(type)) {
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continue;
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}
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const conditionDescriptor = descriptors[type];
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if (conditionDescriptor.hasOwnProperty('transformCache')) {
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conditionDescriptor.transformCache = {};
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}
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const operatorDescriptors = conditionDescriptor.operators;
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for (const operator in operatorDescriptors) {
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if (!operatorDescriptors.hasOwnProperty(operator)) {
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continue;
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}
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const operatorDescriptor = operatorDescriptors[operator];
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if (operatorDescriptor.hasOwnProperty('transformCache')) {
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operatorDescriptor.transformCache = {};
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}
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}
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}
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}
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