/*
 * Silex website builder, free/libre no-code tool for makers.
 * Copyright (c) 2023 lexoyo and Silex Labs foundation
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

/**
 * Throw an error if a parameter is missing
 * @param value the value to check
 * @param name the name of the parameter
 * @throws Error if the parameter is missing
 */
export function requiredParam<T>(value: T | undefined, name: string, defaultValue?: T): NonNullable<T> {
  if (value === undefined) {
    if (defaultValue !== undefined) {
      return defaultValue as NonNullable<T>
    }
    const error = new Error(`Missing required parameter ${name}`)
    console.error(`Missing required parameter ${name}`, error)
    throw error
  }
  return value as NonNullable<T>
}