/**
 * 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.
 */

export function isRgba(color: string): boolean {
  return /^[rR][gG][Bb][Aa]\(([\s]*(2[0-4][0-9]|25[0-5]|[01]?[0-9][0-9]?)[\s]*,){3}[\s]*(1|1.0|0|0.[0-9])[\s]*\){1}$/.test(
    color,
  );
}

export function isHsla(color: string): boolean {
  return /^[hH][Ss][Ll][Aa]\(([\s]*(360｜3[0-5][0-9]|[012]?[0-9][0-9]?)[\s]*,)([\s]*((100|[0-9][0-9]?)%|0)[\s]*,){2}([\s]*(1|1.0|0|0.[0-9])[\s]*)\)$/.test(
    color,
  );
}

export function isTransparent(color: string): boolean {
  return (
    color === 'transparent' ||
    color === 'none' ||
    /^[rR][gG][Bb][Aa]\(([\s]*(2[0-4][0-9]|25[0-5]|[01]?[0-9][0-9]?)[\s]*,){3}[\s]*0[\s]*\)$/.test(
      color,
    ) ||
    /^[hH][Ss][Ll][Aa]\(([\s]*(360｜3[0-5][0-9]|[012]?[0-9][0-9]?)[\s]*,)([\s]*((100|[0-9][0-9]?)%|0)[\s]*,){2}([\s]*0[\s]*)\)$/.test(
      color,
    )
  );
}