import CryptoJS from 'crypto-js'

export default class crypto {
	/**
	 * token加密key 使用@org.springblade.test.CryptoKeyGenerator获取,需和后端配置保持一致
	 * @type {string}
	 */
	static cryptoKey = '请配置cryptoKey'
	/**
	 * 报文加密key 使用@org.springblade.test.CryptoKeyGenerator获取,需和后端配置保持一致
	 * @type {string}
	 */
	static aesKey = '请配置aesKey'
	/**
	 * 报文加密key 使用@org.springblade.test.CryptoKeyGenerator获取,需和后端配置保持一致
	 * @type {string}
	 */
	static desKey = '请配置desKey'

	/**
	 * aes 加密方法
	 * @param data
	 * @returns {*}
	 */
	static encrypt(data) {
		return this.encryptAES(data, this.aesKey)
	}

	/**
	 * aes 解密方法
	 * @param data
	 * @returns {*}
	 */
	static decrypt(data) {
		return this.decryptAES(data, this.aesKey)
	}

	/**
	 * aes 加密方法，同java：AesUtil.encryptToBase64(text, aesKey);
	 */
	static encryptAES(data, key) {
		const dataBytes = CryptoJS.enc.Utf8.parse(data)
		const keyBytes = CryptoJS.enc.Utf8.parse(key)
		const encrypted = CryptoJS.AES.encrypt(dataBytes, keyBytes, {
			iv: keyBytes,
			mode: CryptoJS.mode.CBC,
			padding: CryptoJS.pad.Pkcs7,
		})
		return CryptoJS.enc.Base64.stringify(encrypted.ciphertext)
	}

	/**
	 * aes 解密方法，同java：AesUtil.decryptFormBase64ToString(encrypt, aesKey);
	 */
	static decryptAES(data, key) {
		const keyBytes = CryptoJS.enc.Utf8.parse(key)
		const decrypted = CryptoJS.AES.decrypt(data, keyBytes, {
			iv: keyBytes,
			mode: CryptoJS.mode.CBC,
			padding: CryptoJS.pad.Pkcs7,
		})
		return CryptoJS.enc.Utf8.stringify(decrypted)
	}

	/**
	 * des 加密方法，同java：DesUtil.encryptToBase64(text, desKey)
	 */
	static encryptDES(data, key) {
		const keyHex = CryptoJS.enc.Utf8.parse(key)
		const encrypted = CryptoJS.DES.encrypt(data, keyHex, {
			mode: CryptoJS.mode.ECB,
			padding: CryptoJS.pad.Pkcs7,
		})
		return encrypted.toString()
	}

	/**
	 * des 解密方法，同java：DesUtil.decryptFormBase64(encryptBase64, desKey);
	 */
	static decryptDES(data, key) {
		const keyHex = CryptoJS.enc.Utf8.parse(key)
		const decrypted = CryptoJS.DES.decrypt(
			{
				ciphertext: CryptoJS.enc.Base64.parse(data),
			},
			keyHex,
			{
				mode: CryptoJS.mode.ECB,
				padding: CryptoJS.pad.Pkcs7,
			}
		)
		return decrypted.toString(CryptoJS.enc.Utf8)
	}
}