feat(account): add ability to sign in with login code (#271)

Co-authored-by: Elias Schneider <login@eliasschneider.com>

frontend/src/lib/components/one-time-link-modal.svelte

@@ -0,0 +1,85 @@
+<script lang="ts">
+	import { page } from '$app/state';
+	import { Button } from '$lib/components/ui/button';
+	import * as Dialog from '$lib/components/ui/dialog';
+	import Input from '$lib/components/ui/input/input.svelte';
+	import Label from '$lib/components/ui/label/label.svelte';
+	import * as Select from '$lib/components/ui/select/index.js';
+	import UserService from '$lib/services/user-service';
+	import { axiosErrorToast } from '$lib/utils/error-util';
+
+	let {
+		userId = $bindable()
+	}: {
+		userId: string | null;
+	} = $props();
+
+	const userService = new UserService();
+
+	let oneTimeLink: string | null = $state(null);
+	let selectedExpiration: keyof typeof availableExpirations = $state('1 hour');
+
+	let availableExpirations = {
+		'1 hour': 60 * 60,
+		'12 hours': 60 * 60 * 12,
+		'1 day': 60 * 60 * 24,
+		'1 week': 60 * 60 * 24 * 7,
+		'1 month': 60 * 60 * 24 * 30
+	};
+
+	async function createOneTimeAccessToken() {
+		try {
+			const expiration = new Date(Date.now() + availableExpirations[selectedExpiration] * 1000);
+			const token = await userService.createOneTimeAccessToken(expiration, userId!);
+			oneTimeLink = `${page.url.origin}/lc/${token}`;
+		} catch (e) {
+			axiosErrorToast(e);
+		}
+	}
+
+	function onOpenChange(open: boolean) {
+		if (!open) {
+			oneTimeLink = null;
+			userId = null;
+		}
+	}
+</script>
+
+<Dialog.Root open={!!userId} {onOpenChange}>
+	<Dialog.Content class="max-w-md">
+		<Dialog.Header>
+			<Dialog.Title>Login Code</Dialog.Title>
+			<Dialog.Description
+				>Create a login code that the user can use to sign in without a passkey once.</Dialog.Description
+			>
+		</Dialog.Header>
+		{#if oneTimeLink === null}
+			<div>
+				<Label for="expiration">Expiration</Label>
+				<Select.Root
+					selected={{
+						label: Object.keys(availableExpirations)[0],
+						value: Object.keys(availableExpirations)[0]
+					}}
+					onSelectedChange={(v) =>
+						(selectedExpiration = v!.value as keyof typeof availableExpirations)}
+				>
+					<Select.Trigger class="h-9 ">
+						<Select.Value>{selectedExpiration}</Select.Value>
+					</Select.Trigger>
+					<Select.Content>
+						{#each Object.keys(availableExpirations) as key}
+							<Select.Item value={key}>{key}</Select.Item>
+						{/each}
+					</Select.Content>
+				</Select.Root>
+			</div>
+			<Button onclick={() => createOneTimeAccessToken()} disabled={!selectedExpiration}>
+				Generate Code
+			</Button>
+		{:else}
+			<Label for="login-code" class="sr-only">Login Code</Label>
+			<Input id="login-code" value={oneTimeLink} readonly />
+		{/if}
+	</Dialog.Content>
+</Dialog.Root>