Add Language(Chinese)

src/lib/components/Chatroom.svelte

@@ -3,6 +3,7 @@
 	import { Mic, Send, Square } from 'lucide-svelte'; // Added Square icon import
 	import AudioPlayer from './AudioPlayer.svelte';
 	import { renderMarkdown } from '$lib/utils/renderMarkdown';
+	import { language } from '$lib/stores/language'; // Import the global language store
 
 	interface Conversation {
 		name: string;
@@ -35,6 +36,25 @@
 	let messagesContainer: HTMLDivElement;
 	let dots = $state('...');
 
+	const translations = {
+		en: {
+			placeholder: 'Type your message...(max 500 characters)',
+			send: 'Send',
+			record: 'Record',
+			waiting: 'Waiting',
+			stop: 'Stop',
+			thinking: 'Thinking'
+		},
+		zh: {
+			placeholder: '手動輸入文字...(最多500個字元)',
+			send: '送出',
+			record: '錄音',
+			waiting: '等待',
+			stop: '停止',
+			thinking: '正在思考'
+		}
+	};
+
 	function scrollToBottom() {
 		if (!messagesContainer || !autoscroll) return;
 
@@ -147,7 +167,7 @@
 					<Card class="w-fit max-w-[80%]">
 						<div class="-my-2">
 							<p class="prose prose-hina text-gray-600">
-								{#await renderMarkdown(`正在思考${dots}`)}
+								{#await renderMarkdown(`${translations[$language].thinking}${dots}`)}
 									Loading ...
 								{:then content}
 									<!-- eslint-disable-next-line svelte/no-at-html-tags -->
@@ -167,7 +187,7 @@
 				<div class="flex min-w-[200px] flex-1 flex-col">
 					<Textarea
 						class="max-h-32 min-h-14 flex-1"
-						placeholder="Type your message...(max 500 characters)"
+						placeholder={translations[$language].placeholder}
 						rows={1}
 						bind:value={text}
 						disabled={operating}
@@ -190,7 +210,11 @@
 						{:else}
 							<Mic />
 						{/if}
-						{recording ? (operating ? 'Waiting' : 'Stop') : 'Record'}
+						{recording
+							? operating
+								? translations[$language].waiting
+								: translations[$language].stop
+							: translations[$language].record}
 					</Button>
 					<Button
 						color="primary"
@@ -199,7 +223,7 @@
 						on:click={handleSend}
 					>
 						<Send class={operating ? 'animate-pulse' : ''} />
-						Send
+						{translations[$language].send}
 					</Button>
 				</div>
 			</div>

src/lib/components/Navbar.svelte

@@ -1,14 +1,32 @@
-<script>
+<script lang="ts">
 	import { Navbar, NavBrand, Avatar, Dropdown, DropdownItem, Button } from 'flowbite-svelte';
 	import { LogOut, User, LayoutDashboard } from 'lucide-svelte';
 	import { signOut, user } from '$lib/stores/auth';
 	import { profile } from '$lib/stores/profile';
 	import { onMount } from 'svelte';
 	import { page } from '$app/state';
+	import { language } from '$lib/stores/language'; // Import the global language store
 
 	let hinagiku = $state('Hinagiku');
 	let highlight = $state(0);
 
+	const translations = {
+		en: {
+			welcome: 'Welcome to Hinagiku!',
+			profile: 'Profile',
+			dashboard: 'Dashboard',
+			signOut: 'Sign out',
+			login: 'Login'
+		},
+		zh: {
+			welcome: '歡迎來到Hinagiku!',
+			profile: '個人资料',
+			dashboard: '儀表板',
+			signOut: '登出',
+			login: '登入'
+		}
+	};
+
 	onMount(() => {
 		const interval = setInterval(() => {
 			let newHighlight;
@@ -20,11 +38,15 @@
 
 		return () => clearInterval(interval);
 	});
+
+	function setLanguage(lang: 'en' | 'zh') {
+		language.set(lang);
+	}
 </script>
 
 <Navbar class="fixed left-0 top-0 z-50 w-full shadow-sm">
 	<NavBrand href="/">
-		<img src="/Icon.png" class="mr-3 h-8" alt="Welcome to Hinagiku!" />
+		<img src="/Icon.png" class="mr-3 h-8" alt={translations[$language].welcome} />
 		<span class="self-center whitespace-nowrap text-2xl font-bold">
 			{#each hinagiku as c, i}<span
 					class="transition-colors duration-500"
@@ -40,18 +62,36 @@
 					<p class="text-sm text-gray-900">{$profile?.displayName}</p>
 					<p class="truncate text-sm font-medium text-gray-500">{$user.email}</p>
 				</div>
-				<DropdownItem href="/profile" class="flex items-center"
-					><User class="mr-2 h-4 w-4" />Profile</DropdownItem
-				>
-				<DropdownItem href="/dashboard" class="flex items-center"
-					><LayoutDashboard class="mr-2 h-4 w-4" />Dashbaord</DropdownItem
-				>
-				<DropdownItem on:click={() => signOut()} class="flex items-center"
-					><LogOut class="mr-2 h-4 w-4" />Sign out</DropdownItem
-				>
+				<DropdownItem href="/profile" class="flex items-center">
+					<User class="mr-2 h-4 w-4" />{translations[$language].profile}
+				</DropdownItem>
+				<DropdownItem href="/dashboard" class="flex items-center">
+					<LayoutDashboard class="mr-2 h-4 w-4" />{translations[$language].dashboard}
+				</DropdownItem>
+				<DropdownItem on:click={() => signOut()} class="flex items-center">
+					<LogOut class="mr-2 h-4 w-4" />{translations[$language].signOut}
+				</DropdownItem>
 			</Dropdown>
 		{:else if !page.url.pathname.startsWith('/login')}
-			<Button href="/login" class="">Login</Button>
+			<Button href="/login" class="">{translations[$language].login}</Button>
 		{/if}
+
+		<!-- Remove the old toggle button and add a dropdown for language selection(PM requested) -->
+		<Avatar
+			id="language-menu"
+			src={$language === 'en' ? '/icons/flag-us.png' : '/icons/flag-zh.jpg'}
+			alt="Lang"
+			class="ml-2 cursor-pointer"
+		/>
+		<Dropdown triggeredBy="#language-menu" class="w-36">
+			<DropdownItem class="flex items-center" on:click={() => setLanguage('en')}>
+				<img src="/icons/flag-us.png" alt="English" class="mr-2 h-4 w-4" />
+				English
+			</DropdownItem>
+			<DropdownItem class="flex items-center" on:click={() => setLanguage('zh')}>
+				<img src="/icons/flag-zh.jpg" alt="中文" class="mr-2 h-4 w-4" />
+				繁體中文
+			</DropdownItem>
+		</Dropdown>
 	</div>
 </Navbar>

src/lib/components/QrScanner.svelte

@@ -2,6 +2,7 @@
 	import { notifications } from '$lib/stores/notifications';
 	import { Html5Qrcode } from 'html5-qrcode';
 	import { onMount, onDestroy } from 'svelte';
+	import { language } from '$lib/stores/language'; // Import the global language store
 
 	let { onScan } = $props<{
 		onScan: (code: string) => void;
@@ -11,6 +12,28 @@
 	let scanning = $state(false);
 	let fileInput: HTMLInputElement;
 
+	const translations = {
+		en: {
+			stopCamera: 'Stop Camera',
+			startCamera: 'Start Camera',
+			uploadQrImage: 'Upload QR Code Image',
+			errorScanning: 'error during scanning: ',
+			errorStartingCamera: 'error during starting camera: ',
+			errorScanningFile: 'error during scanning file: ',
+			unableToFindQr:
+				'Unable to find QR code in the image. Please ensure the image is clear and contains a valid QR code.'
+		},
+		zh: {
+			stopCamera: '停止相機',
+			startCamera: '啟動相機',
+			uploadQrImage: '上傳二維碼圖片',
+			errorScanning: '掃描過程中出錯：',
+			errorStartingCamera: '啟動相機過程中出錯：',
+			errorScanningFile: '掃描文件過程中出錯：',
+			unableToFindQr: '無法在圖像中找到二維碼。請確保圖像清晰並包含有效的二維碼。'
+		}
+	};
+
 	onMount(() => {
 		scanner = new Html5Qrcode('qr-reader');
 	});
@@ -39,11 +62,11 @@
 					if ((err as unknown as Error).toString().includes('NotFoundException')) {
 						return;
 					}
-					// notifications.error(`error during scanning: ${err}`);
+					// notifications.error(`${translations[$language].errorScanning} ${err}`);
 				}
 			);
 		} catch (err) {
-			notifications.error(`error during starting camera: ${err}`);
+			notifications.error(`${translations[$language].errorStartingCamera} ${err}`);
 			scanning = false;
 		}
 	}
@@ -57,11 +80,9 @@
 			onScan(result);
 		} catch (err) {
 			if ((err as unknown as Error).toString().includes('NotFoundException')) {
-				notifications.error(
-					'Unable to find QR code in the image. Please ensure the image is clear and contains a valid QR code.'
-				);
+				notifications.error(translations[$language].unableToFindQr);
 			} else {
-				notifications.error(`error during scanning file: ${err}`);
+				notifications.error(`${translations[$language].errorScanningFile} ${err}`);
 			}
 		} finally {
 			fileInput.value = '';
@@ -78,7 +99,7 @@
 			onclick={scanning ? () => scanner.stop() : startCamera}
 			class="w-full rounded-lg border px-6 py-2 hover:bg-gray-50"
 		>
-			{scanning ? 'Stop Camera' : 'Start Camera'}
+			{scanning ? translations[$language].stopCamera : translations[$language].startCamera}
 		</button>
 
 		<div class="relative">
@@ -94,7 +115,7 @@
 				for="qr-image-input"
 				class="block w-full cursor-pointer rounded-lg border px-6 py-2 text-center hover:bg-gray-50"
 			>
-				Upload QR Code Image
+				{translations[$language].uploadQrImage}
 			</label>
 		</div>
 	</div>

src/lib/components/SessionCard.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { Button, Card } from 'flowbite-svelte';
 	import ResolveUsername from './ResolveUsername.svelte';
+	import { language } from '$lib/stores/language'; // Import the global language store
 
 	let {
 		id,
@@ -19,6 +20,17 @@
 		host?: string;
 		createdAt: Date;
 	} = $props();
+
+	const translations = {
+		en: {
+			hostedBy: 'Hosted by',
+			viewSession: 'View Session'
+		},
+		zh: {
+			hostedBy: '主持人',
+			viewSession: '查看會話'
+		}
+	};
 </script>
 
 <Card padding="lg" class="transition-all hover:border-primary-500">
@@ -52,15 +64,17 @@
 		<div class="mt-auto w-full">
 			{#if host}
 				<div class="flex items-center gap-4">
-					<span class="text-sm text-gray-500">Hosted by <ResolveUsername id={host} /></span>
+					<span class="text-sm text-gray-500"
+						>{translations[$language].hostedBy} <ResolveUsername id={host} /></span
+					>
 				</div>
 			{/if}
 			<div class="mb-4 flex items-center gap-4">
 				<span class="text-sm text-gray-500">
 					{createdAt.toLocaleString()}
 				</span>
 			</div>
-			<Button href="/session/{id}" class="w-full">View Session</Button>
+			<Button href="/session/{id}" class="w-full">{translations[$language].viewSession}</Button>
 		</div>
 	</div>
 </Card>