Latent Implicit Visual Reasoning

arXiv lens breakdown of this paper 👉 https://arxivlens.com/PaperView/Details/latent-implicit-visual-reasoning-9998-b5005eaa

• Executive Summary
• Detailed Breakdown
• Practical Applications

arXiv explained breakdown of this paper 👉 https://arxivexplained.com/papers/latent-implicit-visual-reasoning

// === APP.JS — كل شيء في ملف واحد ===
import express from "express";
import bodyParser from "body-parser";
import cors from "cors";
import fs from "fs-extra";
import { v4 as uuidv4 } from "uuid";
import bcrypt from "bcrypt";

const app = express();
const PORT = 3000;

app.use(cors());
app.use(bodyParser.json());

const DB_FILE = "db.json";

async function loadDB() {
if (!(await fs.pathExists(DB_FILE))) {
await fs.writeJson(DB_FILE, {
users: [],
matches: [],
predictions: [],
results: [],
scores: [],
locked: false,
adminPassword: await bcrypt.hash("admin123", 10)
});
}
return await fs.readJson(DB_FILE);
}

async function saveDB(db) {
await fs.writeJson(DB_FILE, db, { spaces: 2 });
}

/* ================= USERS ================= */

app.post("/register", async (req, res) => {
const { name, phone, password } = req.body;
const db = await loadDB();

if (db.users.find(u => u.phone === phone))
return res.status(400).send("الرقم مسجل مسبقًا");

const hash = await bcrypt.hash(password, 10);

db.users.push({
id: uuidv4(),
name,
phone,
password: hash
});

await saveDB(db);
res.send("تم التسجيل بنجاح");
});

app.post("/login", async (req, res) => {
const { phone, password } = req.body;
const db = await loadDB();

const user = db.users.find(u => u.phone === phone);
if (!user) return res.status(400).send("غير مسجل");

const ok = await bcrypt.compare(password, user.password);
if (!ok) return res.status(400).send("كلمة مرور غير صحيحة");

res.json({ id: user.id, name: user.name });
});

/* ================= ADMIN ================= */

app.get("/admin", (req, res) => {
res.send(adminHTML);
});

app.post("/admin/login", async (req, res) => {
const { password } = req.body;
const db = await loadDB();
const ok = await bcrypt.compare(password, db.adminPassword);
if (!ok) return res.status(400).send("كلمة مرور خاطئة");
res.send("OK");
});

app.post("/admin/matches", async (req, res) => {
const { matches } = req.body;
const db = await loadDB();

if (db.locked) return res.status(400).send("التوقعات مغلقة");

db.matches = matches;
db.predictions = [];
await saveDB(db);
res.send("تم الحفظ");
});

app.post("/admin/results", async (req, res) => {
const { results } = req.body;
const db = await loadDB();
db.results = results;

db.scores = db.users.map(user => {
const pr = db.predictions.find(p => p.userId === user.id);
let score = 0;

if (pr) {
  pr.predictions.forEach(p => {
    const r = results.find(x => x.id === p.id);
    if (!r) return;
    if (Number(r.home) === Number(p.home) && Number(r.away) === Number(p.away))
      score += p.double ? 6 : 3;
  });
}

return { name: user.name, score };

});

await saveDB(db);
res.send("OK");
});

app.post("/admin/lock", async (req, res) => {
const db = await loadDB();
db.locked = true;
await saveDB(db);
res.send("تم إغلاق التوقعات");
});

app.post("/admin/unlock", async (req, res) => {
const db = await loadDB();
db.locked = false;
await saveDB(db);
res.send("تم فتح التوقعات");
});

/* ================= MATCHES ================= */

app.get("/matches", async (req, res) => {
const db = await loadDB();
res.json({ matches: db.matches, locked: db.locked });
});

app.post("/predict", async (req, res) => {
const { userId, predictions } = req.body;
const db = await loadDB();

if (db.locked) return res.status(400).send("التوقعات مغلقة");

if (db.predictions.find(p => p.userId === userId))
return res.status(400).send("تم الحفظ سابقًا");

if (predictions.filter(p => p.double).length > 1)
return res.status(400).send("يسمح بدبل واحد فقط");

db.predictions.push({ userId, predictions });
await saveDB(db);
res.send("تم الحفظ");
});

app.get("/scores", async (req, res) => {
const db = await loadDB();
res.json(db.scores || []);
});

/* ================= USER UI ================= */

app.get("/", (req, res) => {
res.send(userHTML);
});

/* ================= HTML TEMPLATES ================= */

const userHTML = `

الدخول

const adminHTML = `

دخول المدير

app.listen(PORT, () =>
console.log("Running on http://localhost:" + PORT)
);