Add user frontend support

frontend/src/lib/api.ts

@@ -1,4 +1,9 @@
 import { env } from '$env/dynamic/public';
+export interface User {
+	id: number;
+	username: string;
+	password: string | null;
+}
 
 export const API_URL = env.PUBLIC_API_URL || 'http://localhost:8000';
 
@@ -288,6 +293,44 @@ export async function deleteSubscription(subscriptionId: number): Promise<void>
 	}
 }
 
+// Fetch all users
+export async function fetchUsers(): Promise<User[]> {
+	const response = await fetch(`${API_URL}/users`, {
+		headers: authHeaders()
+	});
+	if (!response.ok) {
+		throw new Error('Failed to fetch users');
+	}
+	return response.json();
+}
+
+// Update a user
+export async function updateUser(
+	userId: number,
+	username: string,
+	password: string
+): Promise<void> {
+	const response = await fetch(`${API_URL}/users/${userId}`, {
+		method: 'PUT',
+		headers: authHeaders({ 'Content-Type': 'application/json' }),
+		body: JSON.stringify({ username, password })
+	});
+	if (!response.ok) {
+		throw new Error('Failed to update user');
+	}
+}
+
+// Delete a user
+export async function deleteUser(userId: number): Promise<void> {
+	const response = await fetch(`${API_URL}/users/${userId}`, {
+		method: 'DELETE',
+		headers: authHeaders()
+	});
+	if (!response.ok) {
+		throw new Error('Failed to delete user');
+	}
+}
+
 // Get subscription notifications with pagination
 export async function fetchSubscriptionNotifications(
 	subscriptionId: string,

frontend/src/routes/login/+page.svelte

@@ -35,6 +35,8 @@
 				'token',
 				JSON.stringify({ value: data.access_token, expiresAt: expirationTime })
 			);
+			localStorage.setItem('username', loginUsername);
+
 			goto('/').then(() => location.reload());
 		} catch (err) {
 			loginError = 'Network error - ' + err;

frontend/src/routes/settings/+page.svelte

@@ -1,10 +1,12 @@
 <script lang="ts">
 	import { onMount } from 'svelte';
-	import { fetchUserSettings, updateSetting } from '$lib/api';
+	import { fetchUserSettings, updateSetting, fetchUsers, updateUser, deleteUser } from '$lib/api';
-	import type { Settings } from '$lib/api';
+	import type { Settings, User } from '$lib/api';
 	import CodeMirror from 'svelte-codemirror-editor';
 
 	let settings: Settings | null = $state(null);
+	let users: User[] = $state([]);
+	let currentUser: string | null = $state(localStorage.getItem('username'));
 	let isLoading = $state(false);
 	let error: string | null = $state(null);
 
@@ -21,6 +23,18 @@
 		}
 	}
 
+	async function loadUsers() {
+		isLoading = true;
+		error = null;
+		try {
+			users = await fetchUsers();
+		} catch (err) {
+			error = 'Failed to load users - ' + err;
+		} finally {
+			isLoading = false;
+		}
+	}
+
 	async function saveSetting(setting: Settings) {
 		isLoading = true;
 		error = null;
@@ -34,8 +48,35 @@
 		}
 	}
 
+	async function handleUpdateUser(user: User, username: string, password: string) {
+		isLoading = true;
+		error = null;
+		try {
+			await updateUser(user.id, username, password);
+			loadUsers(); // Refresh users after update
+		} catch (err) {
+			error = 'Failed to update user - ' + err;
+		} finally {
+			isLoading = false;
+		}
+	}
+
+	async function handleDeleteUser(userId: number) {
+		isLoading = true;
+		error = null;
+		try {
+			await deleteUser(userId);
+			loadUsers(); // Refresh users after deletion
+		} catch (err) {
+			error = 'Failed to delete user - ' + err;
+		} finally {
+			isLoading = false;
+		}
+	}
+
 	onMount(() => {
 		loadSettings();
+		loadUsers();
 	});
 </script>
 
@@ -80,6 +121,65 @@
 				</button>
 			</div>
 		</div>
+		<h2 class="text-xl font-bold mt-8">User Management</h2>
+		{#if isLoading}
+			<p>Loading users...</p>
+		{:else if error}
+			<p class="text-red-500">{$error}</p>
+		{:else}
+			<table
+				class="table-auto w-full mt-4 border-collapse border border-gray-300 shadow-lg rounded-lg"
+			>
+				<thead>
+					<tr class="bg-gray-100">
+						<th class="px-4 py-2 border border-gray-300 text-left font-semibold">Users</th>
+						<th class="px-4 py-2 border border-gray-300 text-center font-semibold">Actions</th>
+					</tr>
+				</thead>
+				<tbody>
+					{#each users as user (user.id)}
+						<tr class="hover:bg-gray-50">
+							<td class="border px-4 py-2 border-gray-300">
+								{#if user.username === currentUser}
+									<input
+										type="text"
+										placeholder="New Username"
+										class="px-2 py-1 border rounded"
+										bind:value={user.username}
+									/>
+
+									<input
+										type="password"
+										placeholder="New Password"
+										class="px-2 py-1 border rounded"
+										bind:value={user.password}
+									/>
+								{:else}
+									{user.username}
+								{/if}
+							</td>
+							<td class="border px-4 py-2 border-gray-300 text-center">
+								{#if user.username === currentUser}
+									<button
+										class="ml-2 px-2 py-1 bg-yellow-500 text-white rounded hover:bg-yellow-600"
+										onclick={() => handleUpdateUser(user, user.username, user.password)}
+									>
+										Update
+									</button>
+								{:else}
+									<button
+										class="ml-2 px-2 py-1 bg-red-500 text-white rounded hover:bg-red-600"
+										onclick={() => handleDeleteUser(user.id)}
+									>
+										Delete
+									</button>
+								{/if}
+							</td>
+						</tr>
+					{/each}
+				</tbody>
+			</table>
+		{/if}
 	{/if}
 </div>