[frogend] Settings refactor (#1318)

* yakshave new form field structure

* fully refactor user profile settings form

* use rtk query api for profile settings

* refactor user post settings

* refactor password change form

* refactor admin settings

* FormWithData structure for user forms

* admin actions refactor

* whitespace

* fix user settings data prop

* remove superfluous logging

* cleanup old code

* refactor federation/suspend (overview, detail)

* mostly abstracted (emoji) checkbox list

* refactor parse-from-toot

* refactor custom-emoji, progress on federation bulk

* loading icon styling to prevent big spinny

* refactor federation import-export interface

* cleanup old files

* [chore] Update/add license headers for 2023

* redux fixes

* text-field exports

* appease the linter

* refactor authentication with RTK Query

* fix login/logout state transition weirdness

* fixes/cleanup

* small linter-related fixes

* add eslint license header check, fix existing files

* remove old code, clarify comment

* clarify suspend on subdomains

* collapse if/else

* fa-fw width info comment

web/source/settings/admin/emoji/local/use-shortcode.js

@@ -0,0 +1,61 @@
+/*
+	GoToSocial
+	Copyright (C) 2021-2023 GoToSocial Authors admin@gotosocial.org
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+"use strict";
+
+const React = require("react");
+
+const query = require("../../../lib/query");
+const { useTextInput } = require("../../../lib/form");
+
+const shortcodeRegex = /^[a-z0-9_]+$/;
+
+module.exports = function useShortcode() {
+	const {
+		data: emoji = []
+	} = query.useGetAllEmojiQuery({ filter: "domain:local" });
+
+	const emojiCodes = React.useMemo(() => {
+		return new Set(emoji.map((e) => e.shortcode));
+	}, [emoji]);
+
+	return useTextInput("shortcode", {
+		validator: function validateShortcode(code) {
+			// technically invalid, but hacky fix to prevent validation error on page load
+			if (code == "") { return ""; }
+
+			if (emojiCodes.has(code)) {
+				return "Shortcode already in use";
+			}
+
+			if (code.length < 2 || code.length > 30) {
+				return "Shortcode must be between 2 and 30 characters";
+			}
+
+			if (code.toLowerCase() != code) {
+				return "Shortcode must be lowercase";
+			}
+
+			if (!shortcodeRegex.test(code)) {
+				return "Shortcode must only contain lowercase letters, numbers, and underscores";
+			}
+
+			return "";
+		}
+	});
+};