1 files changed, 61 insertions, 0 deletions
diff --git a/web/source/settings/admin/emoji/local/use-shortcode.js b/web/source/settings/admin/emoji/local/use-shortcode.js
new file mode 100644
index 000000000..109914b8b
--- /dev/null
+++ b/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 "";
+		}
+	});
+};
+\ No newline at end of file