/**
 * Utility functions for WebIRC Chat
 *
 * @package   WebIRC_Chat
 * @license   GPL-2.0-or-later
 * @since     0.1.0
 */

/**
 * Mask sensitive information in IRC commands.
 *
 * @since 0.1.0
 */
export function maskSensitive(line: string): string {
	// PASS command
	line = line.replace(/^PASS\s+\S+/i, 'PASS *****');

	// OPER command (preserve username)
	line = line.replace(/^OPER\s+(\S+)\s+\S+/i, 'OPER $1 *****');

	// AUTHENTICATE command
	line = line.replace(/^AUTHENTICATE\s+\S+/i, 'AUTHENTICATE *****');

	// PRIVMSG NickServ :IDENTIFY password
	line = line.replace(
		/^PRIVMSG\s+NickServ\s+:IDENTIFY\s+\S+/i,
		'PRIVMSG NickServ :IDENTIFY *****'
	);

	// NICKSERV IDENTIFY password
	line = line.replace(
		/^NICKSERV\s+IDENTIFY\s+\S+/i,
		'NICKSERV IDENTIFY *****'
	);

	return line;
}