feat(settings): add backup & restore UI and import/export logic

apps/extension/src/entrypoints/pages/components/Settings.tsx

@@ -0,0 +1,152 @@
+import { Download, Upload } from "lucide-solid";
+import { createSignal, Show } from "solid-js";
+import type { BangAliases, RankingsV2 } from "@/utils/storage";
+import {
+	bangAliasesData,
+	items,
+	quickBangsData,
+	syncedRankings,
+} from "@/utils/storage";
+
+interface SyncSettingsBackup {
+	version: 1;
+	exportedAt: string;
+	data: {
+		rankings: RankingsV2;
+		quick_bangs: string[];
+		bang_aliases: BangAliases;
+	};
+}
+
+const Settings = () => {
+	const [importStatus, setImportStatus] = createSignal<{
+		type: "success" | "error";
+		message: string;
+	} | null>(null);
+
+	const exportSettings = () => {
+		const backup: SyncSettingsBackup = {
+			version: 1,
+			exportedAt: new Date().toISOString(),
+			data: {
+				rankings: syncedRankings() ?? {},
+				quick_bangs: quickBangsData() ?? [],
+				bang_aliases: bangAliasesData() ?? {},
+			},
+		};
+
+		const blob = new Blob([JSON.stringify(backup, null, 2)], {
+			type: "application/json",
+		});
+		const url = URL.createObjectURL(blob);
+		const a = document.createElement("a");
+		a.href = url;
+		a.download = `searchtuner-backup-${new Date().toISOString().split("T")[0]}.json`;
+		document.body.appendChild(a);
+		a.click();
+		document.body.removeChild(a);
+		URL.revokeObjectURL(url);
+	};
+
+	const importSettings = () => {
+		const input = document.createElement("input");
+		input.type = "file";
+		input.accept = ".json";
+		input.onchange = async (e) => {
+			const file = (e.target as HTMLInputElement).files?.[0];
+			if (!file) return;
+
+			try {
+				const text = await file.text();
+				const backup = JSON.parse(text) as SyncSettingsBackup;
+
+				// Validate backup structure
+				if (
+					!backup.version ||
+					!backup.data ||
+					typeof backup.data !== "object"
+				) {
+					throw new Error("Invalid backup file format");
+				}
+
+				// Import each setting if present
+				if (backup.data.rankings && typeof backup.data.rankings === "object") {
+					await items.rankings.setValue(backup.data.rankings);
+				}
+
+				if (Array.isArray(backup.data.quick_bangs)) {
+					await items.quick_bangs.setValue(backup.data.quick_bangs);
+				}
+
+				if (
+					backup.data.bang_aliases &&
+					typeof backup.data.bang_aliases === "object"
+				) {
+					await items.bang_aliases.setValue(backup.data.bang_aliases);
+				}
+
+				setImportStatus({
+					type: "success",
+					message: "Settings imported successfully!",
+				});
+
+				// Clear status after 3 seconds
+				setTimeout(() => setImportStatus(null), 3000);
+			} catch (err) {
+				setImportStatus({
+					type: "error",
+					message:
+						err instanceof Error ? err.message : "Failed to import settings",
+				});
+
+				// Clear status after 5 seconds
+				setTimeout(() => setImportStatus(null), 5000);
+			}
+		};
+		input.click();
+	};
+
+	return (
+		<div class="mx-auto max-w-2xl">
+			<div class="rounded-lg border border-foreground/20 p-4">
+				<h3 class="mb-2 font-semibold text-lg">Backup & Restore</h3>
+				<p class="mb-4 text-foreground/70 text-sm">
+					Export your synced settings to a file or import from a previous
+					backup. This includes your domain rankings, quick bangs, and bang
+					aliases.
+				</p>
+
+				<div class="flex gap-3">
+					<button
+						onClick={exportSettings}
+						class="flex items-center gap-2 rounded bg-foreground/10 px-4 py-2 font-medium text-sm hover:bg-foreground/20"
+					>
+						<Download size={16} />
+						Export Settings
+					</button>
+					<button
+						onClick={() => void importSettings()}
+						class="flex items-center gap-2 rounded bg-foreground/10 px-4 py-2 font-medium text-sm hover:bg-foreground/20"
+					>
+						<Upload size={16} />
+						Import Settings
+					</button>
+				</div>
+
+				<Show when={importStatus()}>
+					{(status) => (
+						<p
+							class={`mt-4 text-sm ${
+								status().type === "success" ? "text-green-500" : "text-red-500"
+							}`}
+						>
+							{status().message}
+						</p>
+					)}
+				</Show>
+			</div>
+		</div>
+	);
+};
+
+export default Settings;

apps/extension/src/entrypoints/pages/main.tsx

@@ -1,10 +1,16 @@
 import { A, HashRouter, Route, useNavigate } from "@solidjs/router";
-import { ArrowUpDown, Hash, Info, Settings } from "lucide-solid";
+import {
+	ArrowUpDown,
+	Hash,
+	Info,
+	Settings as SettingsIcon,
+} from "lucide-solid";
 import { render } from "solid-js/web";
 import logo from "@/assets/icon.webp";
 import { RankingsTable } from "@/entrypoints/pages/components/rankingsTable";
 import About from "./components/About";
 import Bangs from "./components/Bangs";
+import Settings from "./components/Settings";
 
 function App() {
 	return (
@@ -18,7 +24,7 @@ function App() {
 							Rankings
 						</A>
 						<A href="/settings" class="flex items-center gap-2">
-							<Settings />
+							<SettingsIcon />
 							Settings
 						</A>
 						<A href="/bangs" class="flex items-center gap-2">
@@ -44,10 +50,7 @@ function App() {
 					return <></>;
 				}}
 			/>
-			<Route
-				path="/settings"
-				component={() => <div class="text-2xl">Settings</div>}
-			/>
+			<Route path="/settings" component={Settings} />
 			<Route path="/rankings" component={RankingsTable} />
 			<Route path="/about" component={About} />
 			<Route path="/bangs" component={Bangs} />