index.js

import { readFileSync, writeFileSync } from 'fs';
import express from 'express';
import cors from 'cors';

const FILE_PATH = './listings.json';
const app = express()
const PORT = 3000;

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


app.get('/', (req, res) => {
	res.send(readDB())
})

app.post('/add', (req, res) => {
	console.log("1");
	const newListing = req.body;
	addListing(newListing);
	res.json({ success: true, message: "Listing added successfully", listing: newListing });
});


app.get('/hello', (req, res) => {
	res.send('Hello Worlferfrd!')
})

app.listen(PORT, () => {
	console.log(`Example app listening on port ${PORT}`)
})

// Read database
const readDB = () => {
	const data = readFileSync(FILE_PATH, 'utf8');
	return JSON.parse(data);
};

// Write database
const writeDB = (data) => {
    try {
        writeFileSync(FILE_PATH, JSON.stringify(data, null, 2), 'utf8');
        console.log("3");
    } catch (error) {
        console.error("❌ error in JSON", error);
    }
};

// Create a new listing
const addListing = (listing) => {
	const db = readDB();
	listing.id = db.length ? db[db.length - 1].id + 1 : 1; // Auto-increment ID
	db.push(listing);
	console.log("2");
	writeDB(db);
};

// Read all listings
const getAllListings = () => readDB();

// Read a single listing by ID
const getListingById = (id) => {
	const db = readDB();
	return db.find(listing => listing.id === id) || null;
};

// Update a listing
const updateListing = (id, newData) => {
	const db = readDB();
	const index = db.findIndex(listing => listing.id === id);
	if (index !== -1) {
		db[index] = { ...db[index], ...newData };
		writeDB(db);
		return true;
	}
	return false;
};

// Delete a listing
const deleteListing = (id) => {
	let db = readDB();
	const newDb = db.filter(listing => listing.id !== id);
	if (newDb.length !== db.length) {
		writeDB(newDb);
		return true;
	}
	return false;
};

// Example Usage in development environment
// console.log("All Listings:", getAllListings());
// addListing({ title: "Gaming Chair", category: "furniture", price: 500, description: "Comfortable gaming chair", imageUrl: "https://images.unsplash.com/photo-1597670351082-4c255af69ab6?w=500", intra: "john_doe" });
// console.log("After Adding:", getAllListings());
// console.log("Get Listing with ID 1:", getListingById(1));
// updateListing(1, { price: 7500 });
// console.log("After Update:", getAllListings());
// deleteListing(2);
// console.log("After Deletion:", getAllListings());

export default { readDB, writeDB };