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import invalidKeyInput from './invalid_key_input.ts'import isKeyLike, { types } from '../runtime/is_key_like.ts'
const symmetricTypeCheck = (key: unknown) => {  if (key instanceof Uint8Array) return
  if (!isKeyLike(key)) {    throw new TypeError(invalidKeyInput(key, ...types, 'Uint8Array'))  }
  if (key.type !== 'secret') {    throw new TypeError(      `${types.join(' or ')} instances for symmetric algorithms must be of type "secret"`,    )  }}
const asymmetricTypeCheck = (key: unknown, usage: string) => {  if (!isKeyLike(key)) {    throw new TypeError(invalidKeyInput(key, ...types))  }
  if (key.type === 'secret') {    throw new TypeError(      `${types.join(' or ')} instances for asymmetric algorithms must not be of type "secret"`,    )  }
  if (usage === 'sign' && key.type === 'public') {    throw new TypeError(      `${types.join(' or ')} instances for asymmetric algorithm signing must be of type "private"`,    )  }
  if (usage === 'decrypt' && key.type === 'public') {    throw new TypeError(      `${types.join(        ' or ',      )} instances for asymmetric algorithm decryption must be of type "private"`,    )  }
  // KeyObject allows this but CryptoKey does not.  if ((<CryptoKey>key).algorithm && usage === 'verify' && key.type === 'private') {    throw new TypeError(      `${types.join(' or ')} instances for asymmetric algorithm verifying must be of type "public"`,    )  }
  // KeyObject allows this but CryptoKey does not.  if ((<CryptoKey>key).algorithm && usage === 'encrypt' && key.type === 'private') {    throw new TypeError(      `${types.join(        ' or ',      )} instances for asymmetric algorithm encryption must be of type "public"`,    )  }}
const checkKeyType = (alg: string, key: unknown, usage: string): void => {  const symmetric =    alg.startsWith('HS') ||    alg === 'dir' ||    alg.startsWith('PBES2') ||    /^A\d{3}(?:GCM)?KW$/.test(alg)
  if (symmetric) {    symmetricTypeCheck(key)  } else {    asymmetricTypeCheck(key, usage)  }}
export default checkKeyType