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import {CAUSE} from "./constants";import {PATTERN as PATTERN_IPV4} from "./IPv4Adjuster";import {PATTERN as PATTERN_IPV6} from "./IPv6Adjuster";
import AdjusterInterface from "./AdjusterInterface";import AdjusterError from "./AdjusterError";import StringAdjuster from "./StringAdjuster";
const MAX_LENGTH_LOCAL = 64;const MAX_LENGTH_DOMAIN = 255;const MAX_LENGTH = MAX_LENGTH_LOCAL + 1 + MAX_LENGTH_DOMAIN; // local-part + "@" + domain-part
// https://tools.ietf.org/html/rfc5321// https://tools.ietf.org/html/rfc5322const PATTERN_CHARSET_DOT = "[\\w!#$%&'*+\\-\\/=?^`{|}~]";const PATTERN_CHARSET_QUOTED = "[\\w!#$%&'*+\\-\\/=?^`{|}~. ()<>\\[\\]:;@,]";const PATTERN_CHARSET_TLD = "[a-zA-Z]";const PATTERN_CHARSET_SLD = "[a-zA-Z\\d\\-]";
const PATTERN_COMPONENT_DOT = `${PATTERN_CHARSET_DOT}+`;const PATTERN_COMPONENT_QUOTED = `(${PATTERN_CHARSET_QUOTED}|\\\\[\\\\"])+`;const PATTERN_COMPONENT_TLD = `${PATTERN_CHARSET_TLD}+`;const PATTERN_COMPONENT_SLD = `${PATTERN_CHARSET_SLD}+`;
const PATTERN_LOCAL_DOT = `${PATTERN_COMPONENT_DOT}(\\.${PATTERN_COMPONENT_DOT})*`;const PATTERN_LOCAL_QUOTED = `"${PATTERN_COMPONENT_QUOTED}"`;const PATTERN_LOCAL = `(${PATTERN_LOCAL_DOT}|${PATTERN_LOCAL_QUOTED})`;
const PATTERN_DOMAIN_GENERAL = `(${PATTERN_COMPONENT_SLD}\\.)+${PATTERN_COMPONENT_TLD}`;const PATTERN_DOMAIN_IP = `\\[(${PATTERN_IPV4}|IPv6:${PATTERN_IPV6})\\]`;const PATTERN_DOMAIN = `(${PATTERN_DOMAIN_GENERAL}|${PATTERN_DOMAIN_IP})`;
const PATTERN = `${PATTERN_LOCAL}@${PATTERN_DOMAIN}`;
const REGEXP = new RegExp(`^${PATTERN}$`);
/** * adjuster for e-mail */export default class EmailAdjuster extends AdjusterInterface{	/**	 * constructor	 */	constructor()	{		super();
		this._objAdjuster = new StringAdjuster()			.maxLength(MAX_LENGTH)			.pattern(REGEXP);	}
	/**	 * set default value; enable to omit	 * @param {string} value default value	 * @return {EmailAdjuster}	 */	default(value)	{		this._objAdjuster.default(value);		return this;	}
	/**	 * allow empty string (NOT undefined)	 * @param {?string} [value=null] value on empty	 * @return {EmailAdjuster}	 */	allowEmpty(value = null)	{		this._objAdjuster.allowEmpty(value);		return this;	}
	/**	 * specify custom pattern by regular expression	 * @param {RegExp} pattern acceptable pattern	 * @return {EmailAdjuster}	 */	pattern(pattern)	{		this._objAdjuster.pattern(pattern);		return this;	}
	/**	 * do adjust	 * @param {*} value value to be checked	 * @param {?_OnError} onError callback function on error	 * @return {string} adjusted value	 */	adjust(value, onError = null)	{		try		{			const adjusted = this._objAdjuster.adjust(value);
			const atPosition = adjusted.lastIndexOf("@");			if(atPosition > MAX_LENGTH_LOCAL)			{				// local-part length error				throw new AdjusterError(CAUSE.MAX_LENGTH, value);			}			if(adjusted.length - atPosition - 1 > MAX_LENGTH_DOMAIN)			{				// domain-part length error				throw new AdjusterError(CAUSE.MAX_LENGTH, value);			}
			return adjusted;		}		catch(err)		{			if(err.cause === CAUSE.PATTERN)			{				err.cause = CAUSE.EMAIL;			}			return AdjusterInterface._handleError(onError, err.cause, value);		}	}}