mirror of
https://github.com/multipleof4/sune.git
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253 lines
11 KiB
JavaScript
253 lines
11 KiB
JavaScript
try {
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importScripts("https://cdn.jsdelivr.net/npm/localforage@1.10.0/dist/localforage.min.js");
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} catch (e) {
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}
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const TARGET_SUBSTRING = "openrouter.ai/api/v1/chat/completions";
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const THREADS_KEY = "threads_v1";
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const gid = () => Math.random().toString(36).slice(2, 9) + "-" + Date.now().toString(36);
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const now = () => Date.now();
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let lfAvailable = typeof localforage !== "undefined";
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let lfLoadError = lfAvailable ? null : "localforage not present in SW";
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async function broadcast(msg) {
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try {
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const clients = await self.clients.matchAll({ includeUncontrolled: true, type: "window" });
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for (const c of clients) {
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try {
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c.postMessage(msg);
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} catch (e) {
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}
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}
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} catch (e) {
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}
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}
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async function readThreads() {
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if (!lfAvailable) throw new Error("localforage unavailable: " + lfLoadError);
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const v = await localforage.getItem(THREADS_KEY);
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return Array.isArray(v) ? v : v ? v : [];
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}
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async function writeThreads(threads) {
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if (!lfAvailable) throw new Error("localforage unavailable: " + lfLoadError);
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return localforage.setItem(THREADS_KEY, threads);
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}
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function pickLastThread(threads) {
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if (!Array.isArray(threads) || threads.length === 0) return null;
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return threads.slice().sort((a, b) => (b.updatedAt || 0) - (a.updatedAt || 0))[0];
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}
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function upsertAssistantInThread(thread, text) {
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thread.updatedAt = now();
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thread.messages = thread.messages || [];
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const last = thread.messages.length ? thread.messages[thread.messages.length - 1] : null;
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if (last && last.role === "assistant") {
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last.content = text;
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last.contentParts = [{ type: "text", text }];
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last.updatedAt = now();
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return { threadId: thread.id, messageId: last.id || null, action: "updated" };
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} else {
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const msg = {
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// intentionally do not add extra custom ids/flags beyond minimal fields
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role: "assistant",
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content: text,
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contentParts: [{ type: "text", text }]
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};
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thread.messages.push(msg);
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return { threadId: thread.id, messageId: msg.id || null, action: "appended" };
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}
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}
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self.addEventListener("install", (ev) => self.skipWaiting());
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self.addEventListener("activate", (ev) => ev.waitUntil(self.clients.claim()));
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self.addEventListener("fetch", (event) => {
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try {
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const url = String(event.request.url || "");
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if (!url.includes(TARGET_SUBSTRING)) return;
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event.respondWith((async () => {
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const resUp = await fetch(event.request);
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if (!resUp || !resUp.body) return resUp;
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const meta = { url, startedAt: now(), bytes: 0 };
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broadcast({ type: "INTERCEPT_START", meta });
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const [clientStream, swStream] = resUp.body.tee();
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const saveTask = (async () => {
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const reader = swStream.getReader();
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const decoder = new TextDecoder("utf-8");
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let acc = "";
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let lastSavedText = null;
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try {
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while (true) {
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const { value, done } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value, { stream: true });
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acc += chunk;
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meta.bytes += value ? value.byteLength || 0 : chunk.length;
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if (lastSavedText !== acc) {
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const p = (async () => {
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try {
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const threads = await readThreads();
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let thread = pickLastThread(threads);
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if (!thread) {
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thread = { id: "sw-thread-" + gid(), title: "Missed while backgrounded", pinned: false, updatedAt: now(), messages: [] };
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threads.unshift(thread);
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}
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const res = upsertAssistantInThread(thread, acc);
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await writeThreads(threads);
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lastSavedText = acc;
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broadcast({ type: "INTERCEPT_SAVE", meta: { threadId: res.threadId, action: res.action, bytes: meta.bytes, textLen: acc.length } });
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} catch (err) {
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broadcast({ type: "INTERCEPT_ERROR", meta: { error: String(err && err.message ? err.message : err) } });
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}
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})();
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try {
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event.waitUntil(p);
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} catch (e) {
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}
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}
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}
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if (lastSavedText !== acc) {
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try {
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const threads = await readThreads();
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let thread = pickLastThread(threads);
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if (!thread) {
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thread = { id: "sw-thread-" + gid(), title: "Missed while backgrounded", pinned: false, updatedAt: now(), messages: [] };
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threads.unshift(thread);
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}
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const res = upsertAssistantInThread(thread, acc);
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await writeThreads(threads);
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broadcast({ type: "INTERCEPT_SAVE", meta: { threadId: res.threadId, action: res.action, bytes: meta.bytes, textLen: acc.length } });
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} catch (err) {
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broadcast({ type: "INTERCEPT_ERROR", meta: { error: String(err && err.message ? err.message : err) } });
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}
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}
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broadcast({ type: "INTERCEPT_END", meta: { bytes: meta.bytes, endedAt: now() } });
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} catch (err) {
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broadcast({ type: "INTERCEPT_ERROR", meta: { error: String(err && err.message ? err.message : err) } });
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}
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})();
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try {
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event.waitUntil(saveTask);
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} catch (e) {
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}
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return new Response(clientStream, {
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status: resUp.status,
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statusText: resUp.statusText,
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headers: resUp.headers
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});
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})());
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} catch (err) {
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broadcast({ type: "INTERCEPT_ERROR", meta: { error: String(err && err.message ? err.message : err) } });
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}
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});
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self.addEventListener("message", (event) => {
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const data = event.data || {};
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(async () => {
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try {
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if (data.type === "PING") {
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if (event.ports && event.ports[0]) event.ports[0].postMessage({ type: "PONG", ts: now() });
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else broadcast({ type: "PONG", ts: now() });
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return;
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}
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if (data.type === "PING_STATUS") {
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const reply = { type: "PONG_STATUS", ts: now(), lfAvailable, lfLoadError };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(reply);
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else broadcast(reply);
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return;
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}
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if (data.type === "TEST_WRITE") {
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if (!lfAvailable) {
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const out = { type: "TEST_WRITE_RESULT", ok: false, error: "localforage unavailable: " + lfLoadError };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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return;
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}
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try {
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const threads = await readThreads();
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const tid = "sw-test-" + gid();
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const nowMs = now();
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const t = { id: tid, title: "SW test " + new Date(nowMs).toISOString(), pinned: false, updatedAt: nowMs, messages: [{ role: "assistant", content: "sw test write @ " + new Date(nowMs).toISOString(), contentParts: [{ type: "text", text: "sw test write" }] }] };
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threads.unshift(t);
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await writeThreads(threads);
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const out = { type: "TEST_WRITE_RESULT", ok: true, tid };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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} catch (err) {
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const out = { type: "TEST_WRITE_RESULT", ok: false, error: String(err && err.message ? err.message : err) };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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}
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return;
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}
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if (data.type === "READ_KEY") {
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const key = data.key || THREADS_KEY;
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if (!lfAvailable) {
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const res = { type: "READ_KEY_RESULT", ok: false, key, error: "localforage unavailable: " + lfLoadError };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(res);
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else broadcast(res);
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return;
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}
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try {
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const value = await localforage.getItem(key);
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const out = { type: "READ_KEY_RESULT", ok: true, key, value };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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} catch (err) {
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const out = { type: "READ_KEY_RESULT", ok: false, key, error: String(err && err.message ? err.message : err) };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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}
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return;
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}
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if (data.type === "LIST_SW_SAVED") {
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if (!lfAvailable) {
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const res = { type: "LIST_SW_SAVED_RESULT", ok: false, error: "localforage unavailable: " + lfLoadError };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(res);
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else broadcast(res);
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return;
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}
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try {
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const threads = await readThreads();
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const found = [];
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for (const t of threads || []) {
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for (const m of t.messages || []) {
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if (m && m.role === "assistant") {
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found.push({ threadId: t.id, snippet: (m.content || "").slice(0, 200) });
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}
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}
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}
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const out = { type: "LIST_SW_SAVED_RESULT", ok: true, found };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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} catch (err) {
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const out = { type: "LIST_SW_SAVED_RESULT", ok: false, error: String(err && err.message ? err.message : err) };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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}
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return;
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}
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if (data.type === "CLEAR_TESTS") {
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if (!lfAvailable) {
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const res = { type: "CLEAR_TESTS_RESULT", ok: false, error: "localforage unavailable: " + lfLoadError };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(res);
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else broadcast(res);
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return;
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}
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try {
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const threads = await readThreads();
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const before = threads.length;
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const cleaned = threads.filter((t) => !(t.id && String(t.id).startsWith("sw-test-")));
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await writeThreads(cleaned);
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const removed = before - cleaned.length;
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const out = { type: "CLEAR_TESTS_RESULT", ok: true, removed };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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} catch (err) {
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const out = { type: "CLEAR_TESTS_RESULT", ok: false, error: String(err && err.message ? err.message : err) };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(out);
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else broadcast(out);
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}
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return;
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}
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} catch (err) {
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const r = { type: "SW_ERROR", error: String(err && err.message ? err.message : err) };
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if (event.ports && event.ports[0]) event.ports[0].postMessage(r);
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else broadcast(r);
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}
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})();
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});
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