[chore] Bundler restructure (#880)

* re-structure bundler, settings panel files

* add more info logging

* tidy up CSS syntax errors

* split into lib/ files

* livereloading server

* fix factor function for production builds

* remove testing console.log

* default to production env, saves 300kb bundle size

1 files changed, 178 insertions, 0 deletions

diff --git a/web/source/settings/index.js b/web/source/settings/index.js
new file mode 100644
index 000000000..34720e818
--- /dev/null
+++ b/web/source/settings/index.js
@@ -0,0 +1,178 @@
+/*
+	GoToSocial
+	Copyright (C) 2021-2022 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 Promise = require("bluebird");
+const React = require("react");
+const ReactDom = require("react-dom/client");
+const Redux = require("react-redux");
+const { Switch, Route, Redirect } = require("wouter");
+const { Provider } = require("react-redux");
+const { PersistGate } = require("redux-persist/integration/react");
+
+const { store, persistor } = require("./redux");
+const api = require("./lib/api");
+const oauth = require("./redux/reducers/oauth").actions;
+const { AuthenticationError } = require("./lib/errors");
+
+const Login = require("./components/login");
+
+require("./style.css");
+
+// TODO: nested categories?
+const nav = {
+	"User": {
+		"Profile": require("./user/profile.js"),
+		"Settings": require("./user/settings.js"),
+	},
+	"Admin": {
+		adminOnly: true,
+		"Instance Settings": require("./admin/settings.js"),
+		"Actions": require("./admin/actions"),
+		"Federation": require("./admin/federation.js"),
+		"Custom Emoji": require("./admin/emoji.js"),
+	}
+};
+
+const { sidebar, panelRouter } = require("./lib/get-views")(nav);
+
+function App() {
+	const dispatch = Redux.useDispatch();
+
+	const { loginState, isAdmin } = Redux.useSelector((state) => state.oauth);
+	const reduxTempStatus = Redux.useSelector((state) => state.temporary.status);
+
+	const [errorMsg, setErrorMsg] = React.useState();
+	const [tokenChecked, setTokenChecked] = React.useState(false);
+
+	React.useEffect(() => {
+		if (loginState == "login" || loginState == "callback") {
+			Promise.try(() => {
+				// Process OAUTH authorization token from URL if available
+				if (loginState == "callback") {
+					let urlParams = new URLSearchParams(window.location.search);
+					let code = urlParams.get("code");
+
+					if (code == undefined) {
+						setErrorMsg(new Error("Waiting for OAUTH callback but no ?code= provided. You can try logging in again:"));
+					} else {
+						return dispatch(api.oauth.tokenize(code));
+					}
+				}
+			}).then(() => {
+				// Fetch current instance info
+				return dispatch(api.instance.fetch());
+			}).then(() => {
+				// Check currently stored auth token for validity if available
+				return dispatch(api.user.fetchAccount());
+			}).then(() => {
+				setTokenChecked(true);
+
+				return dispatch(api.oauth.checkIfAdmin());
+			}).catch((e) => {
+				if (e instanceof AuthenticationError) {
+					dispatch(oauth.remove());
+					e.message = "Stored OAUTH token no longer valid, please log in again.";
+				}
+				setErrorMsg(e);
+				console.error(e);
+			});
+		}
+	}, []);
+
+	let ErrorElement = null;
+	if (errorMsg != undefined) {
+		ErrorElement = (
+			<div className="error">
+				<b>{errorMsg.type}</b>
+				<span>{errorMsg.message}</span>
+			</div>
+		);
+	}
+
+	const LogoutElement = (
+		<button className="logout" onClick={() => { dispatch(api.oauth.logout()); }}>
+			Log out
+		</button>
+	);
+
+	if (reduxTempStatus != undefined) {
+		return (
+			<section>
+				{reduxTempStatus}
+			</section>
+		);
+	} else if (tokenChecked && loginState == "login") {
+		return (
+			<>
+				<div className="sidebar">
+					{sidebar.all}
+					{isAdmin && sidebar.admin}
+					{LogoutElement}
+				</div>
+				<section className="with-sidebar">
+					{ErrorElement}
+					<Switch>
+						{panelRouter.all}
+						{isAdmin && panelRouter.admin}
+						<Route> {/* default route */}
+							<Redirect to="/settings/user" />
+						</Route>
+					</Switch>
+				</section>
+			</>
+		);
+	} else if (loginState == "none") {
+		return (
+			<Login error={ErrorElement} />
+		);
+	} else {
+		let status;
+
+		if (loginState == "login") {
+			status = "Verifying stored login...";
+		} else if (loginState == "callback") {
+			status = "Processing OAUTH callback...";
+		}
+
+		return (
+			<section>
+				<div>
+					{status}
+				</div>
+				{ErrorElement}
+				{LogoutElement}
+			</section>
+		);
+	}
+
+}
+
+function Main() {
+	return (
+		<Provider store={store}>
+			<PersistGate loading={"loading..."} persistor={persistor}>
+				<App />
+			</PersistGate>
+		</Provider>
+	);
+}
+
+const root = ReactDom.createRoot(document.getElementById("root"));
+root.render(<React.StrictMode><Main /></React.StrictMode>);
\ No newline at end of file