svelte lol

f0ck-svelte/src/lib/stores/flash.ts

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+import { writable } from 'svelte/store';
+
+// ── Flash message type ────────────────────────────────────────────────────────
+export type FlashType = 'info' | 'success' | 'warning' | 'error';
+
+export interface FlashMessage {
+	id: number;
+	text: string;
+	type: FlashType;
+}
+
+let _nextId = 0;
+export const flashes = writable<FlashMessage[]>([]);
+
+/**
+ * Show a flash message. Auto-dismisses after `duration` ms.
+ * Returns the message ID so callers can dismiss early if needed.
+ */
+export function flash(text: string, type: FlashType = 'info', duration = 2500): number {
+	const id = ++_nextId;
+	flashes.update((q) => [...q, { id, text, type }]);
+	setTimeout(() => dismiss(id), duration);
+	return id;
+}
+
+export function dismiss(id: number): void {
+	flashes.update((q) => q.filter((m) => m.id !== id));
+}

f0ck-svelte/src/lib/stores/pin.ts

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+/**
+ * Lightweight broadcast store for pin/unpin events.
+ * ItemView fires it after a successful pin action;
+ * the main grid subscribes to patch the item card immediately.
+ */
+import { writable } from 'svelte/store';
+
+export interface PinEvent {
+	itemId: number;
+	pinned: boolean;
+}
+
+// Null when idle, set to an event when pin/unpin succeeds
+export const pinEvent = writable<PinEvent | null>(null);
+
+export function broadcastPin(itemId: number, pinned: boolean) {
+	pinEvent.set({ itemId, pinned });
+	// Reset so subsequent identical events still trigger subscribers
+	setTimeout(() => pinEvent.set(null), 0);
+}

f0ck-svelte/src/lib/stores/preferences.ts

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+import { writable, derived, get } from 'svelte/store';
+
+// ── Content mode ─────────────────────────────────────────────────────────────
+// 0=SFW, 1=NSFW, 2=untagged, 3=ALL, 4=NSFL
+export const activeMode = writable<number>(3);
+
+// ── Multi-rating filter ───────────────────────────────────────────────────────
+// When non-empty, overrides activeMode for filtering (OR logic across selected ratings)
+export type Rating = 'sfw' | 'nsfw' | 'nsfl' | 'untagged';
+export const activeRatings = writable<Rating[]>([]);
+
+// ── MIME filter ───────────────────────────────────────────────────────────────
+export type MimeFilter = 'video' | 'audio' | 'image' | 'flash';
+export const activeMimes = writable<MimeFilter[]>([]);
+
+// ── Derived: ratings query param string for API calls ─────────────────────────
+export const ratingsParam = derived(activeRatings, ($r) => $r.join('|') || null);
+
+// ── Derived: readable label for the filter badge ─────────────────────────────
+export const filterLabel = derived(
+	[activeMode, activeRatings],
+	([$mode, $ratings]) => {
+		if ($ratings.length > 0) {
+			const abbr: Record<Rating, string> = { sfw: 'S', nsfw: 'N', nsfl: 'L', untagged: 'U' };
+			return $ratings.map((r) => abbr[r]).join('+');
+		}
+		const labels: Record<number, string> = { 0: 'SFW', 1: 'NSFW', 2: 'UNT', 3: 'ALL', 4: 'NSFL' };
+		return labels[$mode] ?? 'ALL';
+	}
+);
+
+// ── Persistence helpers ───────────────────────────────────────────────────────
+// Call these after receiving the session from the server to hydrate from cookie/session.
+export function initPreferences(opts: { mode: number; ratings?: string }) {
+	activeMode.set(opts.mode ?? 3);
+	if (opts.ratings) {
+		const parsed = opts.ratings.split(/[|,]/).filter((r): r is Rating =>
+			['sfw', 'nsfw', 'nsfl', 'untagged'].includes(r)
+		);
+		activeRatings.set(parsed);
+	}
+}
+
+/** Build a mode number → server mode number (for API calls when using multi-rating). */
+export function getServerMode(): number {
+	const ratings = get(activeRatings);
+	if (ratings.length === 0) return get(activeMode);
+	const single: Record<Rating, number> = { sfw: 0, nsfw: 1, nsfl: 4, untagged: 2 };
+	return ratings.length === 1 ? (single[ratings[0]] ?? 3) : 3;
+}

f0ck-svelte/src/lib/stores/session.ts

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+import { writable, derived } from 'svelte/store';
+import type { SessionUser } from '$lib/types/session';
+
+/** The current authenticated user, or null if not logged in. */
+export const session = writable<SessionUser | null>(null);
+
+/** Convenience derived — true when logged in. */
+export const loggedIn = derived(session, ($s) => $s !== null);
+
+/** True when the user has admin or moderator role. */
+export const isModOrAdmin = derived(session, ($s) => !!($s?.admin || $s?.is_moderator));

f0ck-svelte/src/lib/stores/sse.ts

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+/**
+ * SSE store — connects to the backend's /api/notifications/stream endpoint.
+ *
+ * Emits typed events that components subscribe to with `onSSE()`.
+ * Auto-reconnects with exponential backoff on disconnect.
+ * Client-only: never runs during SSR.
+ */
+import { writable, get } from 'svelte/store';
+import { browser } from '$app/environment';
+
+// ── Event types broadcast by the backend ─────────────────────────────────────
+export interface SSEComment {
+	type: 'comment' | 'delete';
+	id?: number;
+	item_id: number;
+	comment_id?: number;
+	body?: string;
+	username?: string;
+	display_name?: string | null;
+	avatar?: string | null;
+	avatar_file?: string | null;
+	username_color?: string | null;
+	created_at?: string;
+	parent_id?: number | null;
+	xd_score?: number | null;
+}
+
+export interface SSEFavorites {
+	item_id: number;
+	favs: Array<{
+		user: string;
+		display_name: string | null;
+		avatar: string | null;
+		avatar_file: string | null;
+		username_color: string | null;
+	}>;
+}
+
+export interface SSETags {
+	item_id: number;
+	fresh: boolean;
+	tags: unknown[];
+}
+
+export interface SSENewItem {
+	id: number;
+	mime?: string;
+}
+
+export interface SSEDeleteItem {
+	id: number;
+}
+
+export interface SSEEvent {
+	type: 'comments' | 'favorites' | 'tags' | 'new_item' | 'delete_item' | 'notify' | 'activity' | string;
+	data: SSEComment | SSEFavorites | SSETags | SSENewItem | SSEDeleteItem | Record<string, unknown>;
+}
+
+// ── Connection state ──────────────────────────────────────────────────────────
+export type SSEState = 'disconnected' | 'connecting' | 'connected' | 'error';
+export const sseState = writable<SSEState>('disconnected');
+
+// ── Listener registry ─────────────────────────────────────────────────────────
+type SSEListener = (event: SSEEvent) => void;
+const listeners = new Set<SSEListener>();
+
+/** Subscribe to SSE events. Returns an unsubscribe function. */
+export function onSSE(fn: SSEListener): () => void {
+	listeners.add(fn);
+	return () => listeners.delete(fn);
+}
+
+// ── Internal connection state ─────────────────────────────────────────────────
+let es: EventSource | null = null;
+let retryTimer: ReturnType<typeof setTimeout> | null = null;
+let retryDelay = 2000;
+const MAX_RETRY = 30_000;
+const tabId = browser ? Math.random().toString(36).slice(2) : 'ssr';
+
+function dispatch(raw: SSEEvent) {
+	for (const fn of listeners) {
+		try { fn(raw); } catch (e) { console.error('[SSE] listener error', e); }
+	}
+}
+
+function scheduleRetry() {
+	if (retryTimer) clearTimeout(retryTimer);
+	retryTimer = setTimeout(connect, retryDelay);
+	retryDelay = Math.min(retryDelay * 1.5, MAX_RETRY);
+}
+
+export function connect() {
+	if (!browser) return;
+	if (es) { es.close(); es = null; }
+
+	sseState.set('connecting');
+	es = new EventSource(`/api/notifications/stream?tabId=${tabId}`);
+
+	es.onopen = () => {
+		sseState.set('connected');
+		retryDelay = 2000; // reset backoff on successful connect
+	};
+
+	es.onmessage = (e) => {
+		try {
+			const data = JSON.parse(e.data) as SSEEvent;
+			dispatch(data);
+		} catch {
+			// ignore malformed frames
+		}
+	};
+
+	es.onerror = () => {
+		sseState.set('error');
+		es?.close();
+		es = null;
+		scheduleRetry();
+	};
+}
+
+export function disconnect() {
+	if (retryTimer) { clearTimeout(retryTimer); retryTimer = null; }
+	es?.close();
+	es = null;
+	sseState.set('disconnected');
+}

f0ck-svelte/src/lib/stores/ws.ts

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+import { writable } from 'svelte/store';
+
+// ── WebSocket message types ───────────────────────────────────────────────────
+export type WSMessage =
+	| { type: 'pong' }
+	| { type: 'notification'; count: number; item?: unknown }
+	| { type: 'comment:new'; itemId: number; comment: unknown }
+	| { type: 'comment:delete'; itemId: number; commentId: number }
+	| { type: 'item:tag_added'; itemId: number; tag: unknown }
+	| { type: 'item:favorited'; itemId: number; user: string }
+	| { type: 'global:activity'; payload: unknown };
+
+// ── Store ─────────────────────────────────────────────────────────────────────
+export const wsConnected = writable(false);
+
+let _socket: WebSocket | null = null;
+let _reconnectTimer: ReturnType<typeof setTimeout> | null = null;
+let _reconnectDelay = 1000;
+
+const _listeners = new Map<string, Set<(msg: WSMessage) => void>>();
+
+/** Connect to the WebSocket server. Call once from the root layout. */
+export function wsConnect(): void {
+	if (typeof window === 'undefined') return; // SSR guard
+	if (_socket?.readyState === WebSocket.OPEN) return;
+
+	const proto = location.protocol === 'https:' ? 'wss' : 'ws';
+	_socket = new WebSocket(`${proto}://${location.host}/ws`);
+
+	_socket.onopen = () => {
+		wsConnected.set(true);
+		_reconnectDelay = 1000; // reset backoff on successful connect
+		_ping();
+	};
+
+	_socket.onmessage = (e) => {
+		try {
+			const msg = JSON.parse(e.data) as WSMessage;
+			// Dispatch to typed listeners
+			_listeners.get(msg.type)?.forEach((fn) => fn(msg));
+			_listeners.get('*')?.forEach((fn) => fn(msg));
+		} catch {
+			// ignore malformed messages
+		}
+	};
+
+	_socket.onclose = () => {
+		wsConnected.set(false);
+		_socket = null;
+		// Exponential backoff reconnect
+		if (_reconnectTimer) clearTimeout(_reconnectTimer);
+		_reconnectTimer = setTimeout(() => {
+			_reconnectDelay = Math.min(_reconnectDelay * 2, 30_000);
+			wsConnect();
+		}, _reconnectDelay);
+	};
+
+	_socket.onerror = () => {
+		_socket?.close();
+	};
+}
+
+/** Send a typed message to the server. */
+export function wsSend(msg: object): void {
+	if (_socket?.readyState === WebSocket.OPEN) {
+		_socket.send(JSON.stringify(msg));
+	}
+}
+
+/** Subscribe to a specific message type. Returns an unsubscribe function. */
+export function wsOn(type: string, fn: (msg: WSMessage) => void): () => void {
+	if (!_listeners.has(type)) _listeners.set(type, new Set());
+	_listeners.get(type)!.add(fn);
+	return () => _listeners.get(type)?.delete(fn);
+}
+
+let _pingTimer: ReturnType<typeof setInterval> | null = null;
+function _ping() {
+	if (_pingTimer) clearInterval(_pingTimer);
+	_pingTimer = setInterval(() => wsSend({ type: 'ping' }), 25_000);
+}