1 files changed, 179 insertions, 0 deletions
diff --git a/web/source/settings/components/username-lozenge.tsx b/web/source/settings/components/username-lozenge.tsx
new file mode 100644
index 000000000..9f955cf22
--- /dev/null
+++ b/web/source/settings/components/username-lozenge.tsx
@@ -0,0 +1,179 @@
+/*
+	GoToSocial
+	Copyright (C) GoToSocial Authors admin@gotosocial.org
+	SPDX-License-Identifier: AGPL-3.0-or-later
+
+	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/>.
+*/
+
+import React, { useEffect } from "react";
+import { useLocation } from "wouter";
+import { AdminAccount } from "../lib/types/account";
+import { useLazyGetAccountQuery } from "../lib/query/admin";
+import Loading from "./loading";
+import { Error as ErrorC } from "./error";
+
+interface UsernameLozengeProps {
+	/**
+	 * Either an account ID (for fetching) or an account.
+	 */
+	account?: string | AdminAccount;
+	/**
+	 * Make the lozenge clickable and link to this location.
+	 */
+	linkTo?: string;
+	/**
+	 * Location to set as backLocation after linking to linkTo.
+	 */
+	backLocation?: string;
+	/**
+	 * Additional classnames to add to the lozenge.
+	 */
+	classNames?: string[];
+}
+
+export default function UsernameLozenge({ account, linkTo, backLocation, classNames }: UsernameLozengeProps) {
+	if (account === undefined) {
+		return <>[unknown]</>;
+	} else if (typeof account === "string") {
+		return (
+			<FetchUsernameLozenge
+				accountID={account}
+				linkTo={linkTo}
+				backLocation={backLocation}
+				classNames={classNames}
+			/>
+		);
+	} else {
+		return (
+			<ReadyUsernameLozenge
+				account={account}
+				linkTo={linkTo}
+				backLocation={backLocation}
+				classNames={classNames}
+			/>
+		);
+	}
+
+}
+
+interface FetchUsernameLozengeProps {
+	accountID: string;
+	linkTo?: string;
+	backLocation?: string;
+	classNames?: string[];
+}
+
+function FetchUsernameLozenge({ accountID, linkTo, backLocation, classNames }: FetchUsernameLozengeProps) {
+	const [ trigger, result ] = useLazyGetAccountQuery();
+	
+	// Call to get the account
+	// using the provided ID.
+	useEffect(() => {
+		trigger(accountID, true);
+	}, [trigger, accountID]);
+
+	const {
+		data: account,
+		isLoading,
+		isFetching,
+		isError,
+		error,
+	} = result;
+
+	// Wait for the account
+	// model to be returned.
+	if (isError) {
+		return <ErrorC error={error} />;
+	} else if (isLoading || isFetching || account === undefined) {
+		return <Loading />;
+	}
+
+	return (
+		<ReadyUsernameLozenge
+			account={account}
+			linkTo={linkTo}
+			backLocation={backLocation}
+			classNames={classNames}
+		/>
+	);
+}
+
+interface ReadyUsernameLozengeProps {
+	account: AdminAccount;
+	linkTo?: string;
+	backLocation?: string;
+	classNames?: string[];
+}
+
+function ReadyUsernameLozenge({ account, linkTo, backLocation, classNames }: ReadyUsernameLozengeProps) {
+	const [ _location, setLocation ] = useLocation();
+	
+	let className = "username-lozenge";
+	let isLocal = account.domain == null;
+
+	if (account.suspended) {
+		className += " suspended";
+	}
+
+	if (isLocal) {
+		className += " local";
+	}
+
+	if (classNames) {
+		className = [ className, classNames ].flat().join(" ");
+	}
+
+	let icon = isLocal
+		? { fa: "fa-home", info: "Local user" }
+		: { fa: "fa-external-link-square", info: "Remote user" };
+
+	const content = (
+		<>
+			<i className={`fa fa-fw ${icon.fa}`} aria-hidden="true" title={icon.info} />
+			<span className="sr-only">{icon.info}</span>
+			&nbsp;
+			<span className="acct">@{account.account.acct}</span>
+		</>
+	);
+
+	if (linkTo) {
+		className += " pseudolink";
+		return (
+			<span
+				className={className}
+				onClick={() => {
+					// When clicking on an account, direct
+					// to the detail view for that account.
+					setLocation(linkTo, {
+						// Store the back location in history so
+						// the detail view can use it to return to
+						// this page (including query parameters).
+						state: { backLocation: backLocation }
+					});
+				}}
+				role="link"
+				tabIndex={0}
+			>
+				{content}
+			</span>
+		);
+	} else {
+		return (
+			<div className={className}>
+				{content}
+			</div>
+		);
+	}
+}