/**
 * Validation utilities.
 *
 * Site Kit by Google, Copyright 2021 Google LLC
 *
 * 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
 *
 *     https://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 if the given publication ID appears to be a valid.
 *
 * @since 1.41.0
 *
 * @param {string} publicationID Publication ID to test.
 * @return {boolean} `true` if the given publication ID is valid, `false` otherwise.
 */
export function isValidPublicationID( publicationID ) {
	return (
		typeof publicationID === 'string' &&
		/^[A-Za-z0-9_.-]+$/.test( publicationID )
	);
}

/**
 * Checks if the given products string appears to be a valid.
 *
 * @since 1.41.0
 *
 * @param {string[]} products Products to test.
 * @return {boolean} `true` if the given products list is valid, `false` otherwise.
 */
export function isValidProducts( products ) {
	return (
		Array.isArray( products ) &&
		products.length >= 1 &&
		products.every( ( product ) => product.length > 0 )
	);
}

/**
 * Checks if the given revenue model appears to be a valid.
 *
 * @since 1.45.0
 *
 * @param {string} revenueModel Revenue model to test.
 * @return {boolean} `true` if the given revenue model is valid, `false` otherwise.
 */
export function isValidRevenueModel( revenueModel ) {
	return (
		typeof revenueModel === 'string' &&
		[ 'contribution', 'subscription' ].includes( revenueModel )
	);
}

/**
 * Validation utilities.
 *
 * Site Kit by Google, Copyright 2021 Google LLC
 *
 * 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
 *
 *     https://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 if the given publication ID appears to be a valid.
 *
 * @since n.e.x.t
 *
 * @param {string} publicationID Publication ID to test.
 * @return {boolean} `true` if the given publication ID is valid, `false` otherwise.
 */
export function isValidPublicationID( publicationID ) {
	return (
		typeof publicationID === 'string' &&
		/^[A-Za-z0-9_.-]+$/.test( publicationID )
	);
}

/**
 * Checks if the given products string appears to be a valid.
 *
 * @since n.e.x.t
 *
 * @param {string[]} products Products to test.
 * @return {boolean} `true` if the given products list is valid, `false` otherwise.
 */
export function isValidProducts( products ) {
	return (
		Array.isArray( products ) &&
		products.length >= 1 &&
		products.every( ( product ) => product.length > 0 )
	);
}

/**
 * Checks if the given revenue model appears to be a valid.
 *
 * @since n.e.x.t
 *
 * @param {string} revenueModel Revenue model to test.
 * @return {boolean} `true` if the given revenue model is valid, `false` otherwise.
 */
export function isValidRevenueModel( revenueModel ) {
	return (
		typeof revenueModel === 'string' &&
		[ 'contribution', 'subscription' ].includes( revenueModel )
	);
}

Update @since versions.