aeap-speech-to-text/lib/utils.js

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/*
* Copyright 2022 Sangoma Technologies Corporation
* Kevin Harwell <kharwell@sangoma.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Checks to see if given objects are equal.
*
* @param {Object} obj1
* @param {Object} obj2
* @param {requestCallback} [eq] - Object equality callback
* @return {string} A comma separated string of language names.
*/
function equals(obj1, obj2, eq) {
if (obj1 == undefined || obj1 == null ||
obj2 == undefined || obj2 == null) {
return false;
}
return obj1 == obj2 || (eq && eq(obj1, obj2));
}
/**
* Creates a list of objects that contains only those objects that are equal between
* the given lists of objects.
*
* @param {Object[]} objs1
* @param {Object[]} objs2
* @param {requestCallback} [eq] - Object equality callback
* @return {Object[]} An intersected list of objects.
*/
function intersect(objs1, objs2, eq) {
let res = [];
for (let obj1 of objs1) {
for (let obj2 of objs2) {
if (equals(obj1, obj2, eq)) {
res.push(obj1);
}
}
}
return res;
}
/**
* Finds and returns the first matching object within two given lists.
*
* @param {Object[]} objs1
* @param {Object[]} objs2
* @param {requestCallback} [eq] - Object equality callback
* @return {Object} The first matching object.
*/
function first(objs1, objs2, eq) {
if (!Array.isArray(objs1)) {
objs1 = [objs1];
}
if (!Array.isArray(objs2)) {
objs2 = [objs2];
}
return intersect(objs1, objs2, eq)[0];
}
module.exports = {
first,
intersect,
}