qwen

import crypto from "node:crypto";
import fs from "node:fs";
import path from "node:path";

const API = "https://api.overchat.ai/v1/chat/completions";
const SESSION_DIR = path.join(process.env.HOME, "overchat-sessions");
if (!fs.existsSync(SESSION_DIR)) fs.mkdirSync(SESSION_DIR, { recursive: true });

const UAS = [
  "Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 Chrome/147.0.0.0 Mobile Safari/537.36",
  "Mozilla/5.0 (Linux; Android 14; Pixel 8 Pro) AppleWebKit/537.36 Chrome/149.0.0.0 Mobile Safari/537.36",
  "Mozilla/5.0 (iPhone; CPU iPhone OS 18_2 like Mac OS X) AppleWebKit/605.1.15 Version/18.2 Mobile/15E148 Safari/604.1",
  "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/149.0.0.0 Safari/537.36"
];

const MODEL = "alibaba/qwen3-next-80b-a3b-instruct";
const PERSONA_ID = "qwen-3-landing";

const pick = arr => arr[Math.floor(Math.random() * arr.length)];
const sleep = ms => new Promise(r => setTimeout(r, ms));

function loadSession(name) {
  const file = path.join(SESSION_DIR, (name || "default") + ".json");
  try { return JSON.parse(fs.readFileSync(file, "utf8")); }
  catch {
    const s = { chatId: crypto.randomUUID(), deviceId: crypto.randomUUID(), messages: [] };
    fs.writeFileSync(file, JSON.stringify(s, null, 2));
    return s;
  }
}

function saveSession(name, s) {
  const file = path.join(SESSION_DIR, (name || "default") + ".json");
  fs.writeFileSync(file, JSON.stringify(s, null, 2));
}

export async function chat(prompt, sessionName = null) {
  await sleep(100 + Math.random() * 500);
  const session = loadSession(sessionName);
  const messages = [
    ...session.messages.slice(-10),
    { id: crypto.randomUUID(), role: "user", content: prompt },
    { id: crypto.randomUUID(), role: "system", content: "Ikuti bahasa user dan jawab dengan gaya natural, singkat, dan jelas." }
  ];

  const res = await fetch(API, {
    method: "POST",
    headers: {
      "sec-ch-ua-platform": '"Android"',
      "x-device-uuid": session.deviceId,
      "sec-ch-ua": '"Google Chrome";v="147", "Not.A/Brand";v="8", "Chromium";v="147"',
      "sec-ch-ua-mobile": "?1",
      "x-device-language": "id-ID",
      "x-device-platform": "web",
      "x-device-version": "1.0.44",
      "user-agent": pick(UAS),
      accept: "*/*",
      "content-type": "application/json",
      origin: "https://overchat.ai",
      referer: "https://overchat.ai/",
      "accept-language": "id-ID,id;q=0.9,en-US;q=0.8"
    },
    body: JSON.stringify({
      chatId: session.chatId,
      model: MODEL,
      messages,
      personaId: PERSONA_ID,
      frequency_penalty: 0,
      max_tokens: 4000,
      presence_penalty: 0,
      stream: true,
      temperature: 0.5,
      top_p: 0.95
    })
  });

  if (!res.ok) return { creator: "rynaqrtz", status: false, code: res.status, model: MODEL, answer: "" };

  const reader = res.body.getReader();
  const decoder = new TextDecoder();
  let buf = "", answer = "";

  while (true) {
    const { value, done } = await reader.read();
    if (done) break;
    buf += decoder.decode(value, { stream: true });
    const lines = buf.split("\n");
    buf = lines.pop() || "";
    for (const line of lines) {
      const l = line.trim();
      if (!l.startsWith("data:")) continue;
      const d = l.slice(5).trim();
      if (!d || d === "[DONE]") continue;
      try {
        const json = JSON.parse(d);
        const content = json.choices?.[0]?.delta?.content;
        if (typeof content === "string") answer += content;
      } catch {}
    }
  }

  session.messages.push(
    { id: crypto.randomUUID(), role: "user", content: prompt },
    { id: crypto.randomUUID(), role: "assistant", content: answer }
  );
  if (session.messages.length > 20) session.messages = session.messages.slice(-20);
  saveSession(sessionName, session);

  return { creator: "rynaqrtz", status: true, model: MODEL, answer: answer.trim(), session: sessionName || "default" };
}

if (process.argv[1]?.includes("overchat-qwen")) {
  const [prompt, sessionName] = process.argv.slice(2);
  if (!prompt) {
    console.log(JSON.stringify({ usage: 'node qwen.js "<prompt>" [session]', model: MODEL, features: "Memory + Rotating UA + Qwen 3 Next 80B", creator: "rynaqrtz" }, null, 2));
    process.exit(0);
  }
  chat(prompt, sessionName || null).then(r => console.log(JSON.stringify(r, null, 2)));
}