data.js

import { ID } from 'node-appwrite';

const CATEGORIES = ['electronics', 'clothing', 'books', 'food', 'toys', 'home', 'sports', 'beauty'];

const BRANDS = [
    'Nimbus', 'Vector', 'Harbor', 'Tessera', 'Monolith', 'Kaleido', 'Drift', 'Forge',
    'Lumen', 'Orbit', 'Parallax', 'Quanta', 'Rift', 'Solace', 'Tundra', 'Vantage'
];

const ADJECTIVES = [
    'Premium', 'Compact', 'Wireless', 'Rugged', 'Ultra-light', 'Handcrafted',
    'Organic', 'Heavy-duty', 'Smart', 'Eco-friendly', 'Vintage', 'Ergonomic',
    'Portable', 'Professional', 'Classic', 'Modern', 'Travel', 'Performance'
];

const NOUNS = {
    electronics: ['Headphones', 'Keyboard', 'Monitor', 'Router', 'Webcam', 'Speaker', 'Drone', 'Charger'],
    clothing: ['Jacket', 'Jeans', 'Sneakers', 'T-Shirt', 'Hoodie', 'Cap', 'Scarf', 'Socks'],
    books: ['Novel', 'Cookbook', 'Biography', 'Atlas', 'Anthology', 'Memoir', 'Journal', 'Guide'],
    food: ['Coffee Beans', 'Olive Oil', 'Hot Sauce', 'Granola', 'Tea Sampler', 'Chocolate Bar', 'Pasta', 'Honey'],
    toys: ['Puzzle', 'Building Set', 'Action Figure', 'Board Game', 'Plush Toy', 'RC Car', 'Kite', 'Yo-Yo'],
    home: ['Lamp', 'Blender', 'Cutting Board', 'Throw Pillow', 'Rug', 'Vase', 'Shelf', 'Kettle'],
    sports: ['Yoga Mat', 'Dumbbell', 'Tennis Racket', 'Water Bottle', 'Cycling Helmet', 'Running Shoes', 'Resistance Band', 'Backpack'],
    beauty: ['Moisturizer', 'Lipstick', 'Serum', 'Shampoo', 'Facial Mask', 'Perfume', 'Hair Brush', 'Sunscreen']
};

const DESCRIPTORS = [
    'engineered for daily use with a minimalist finish',
    'built from recycled materials without compromising durability',
    'tested across extreme conditions by an independent lab',
    'balanced for comfort over long sessions',
    'limited run with hand-numbered packaging',
    'ships carbon-neutral from a family-owned workshop',
    'designed alongside professional athletes',
    'refined over three prototype generations before release',
    'compatible with the latest industry standards',
    'covered by a ten year manufacturer warranty',
    'sourced from certified sustainable suppliers',
    'developed with input from a community of early backers'
];

const TLDS = ['com', 'io', 'co', 'shop', 'store', 'net'];

function pick(arr, rng) {
    return arr[Math.floor(rng() * arr.length)];
}

function makeRng(seed) {
    let s = seed >>> 0;
    return () => {
        s = (s * 1664525 + 1013904223) >>> 0;
        return s / 0x100000000;
    };
}

function pad(n, width) {
    return String(n).padStart(width, '0');
}

function generateRow(index) {
    const rng = makeRng(index + 1);
    const category = pick(CATEGORIES, rng);
    const noun = pick(NOUNS[category], rng);
    const adjective = pick(ADJECTIVES, rng);
    const brand = pick(BRANDS, rng);
    const descriptor = pick(DESCRIPTORS, rng);

    const name = `${brand} ${adjective} ${noun}`;
    const sku = `${category.slice(0, 3).toUpperCase()}-${brand.slice(0, 3).toUpperCase()}-${pad(index, 6)}`;
    const price = Math.round((5 + rng() * 495) * 100) / 100;
    const stock = Math.floor(rng() * 500);
    const inStock = stock > 0;
    const rating = Math.round((2 + rng() * 3) * 10) / 10;
    const reviewCount = Math.floor(rng() * 8000);

    const brandSlug = brand.toLowerCase();
    const tld = pick(TLDS, rng);
    const manufacturerEmail = `support+${sku.toLowerCase()}@${brandSlug}.${tld}`;
    const manufacturerUrl = `https://${brandSlug}.${tld}/products/${sku.toLowerCase()}`;

    const daysAgo = Math.floor(rng() * 1460);
    const releasedAt = new Date(Date.now() - daysAgo * 86_400_000).toISOString();

    const ipA = 10 + Math.floor(rng() * 240);
    const ipB = Math.floor(rng() * 256);
    const ipC = Math.floor(rng() * 256);
    const ipD = 1 + Math.floor(rng() * 254);
    const warehouseIp = `${ipA}.${ipB}.${ipC}.${ipD}`;

    const description = `${name} is ${descriptor}. Each unit in the ${category} line is inspected before dispatch.`;

    const tagPool = [adjective.toLowerCase(), brandSlug, category, noun.toLowerCase().replace(/\s+/g, '-')];
    const tags = Array.from(new Set(tagPool)).slice(0, 4);

    return {
        $id: ID.unique(),
        name,
        description,
        sku,
        category,
        brand,
        price,
        stock,
        inStock,
        rating,
        reviewCount,
        manufacturerEmail,
        manufacturerUrl,
        releasedAt,
        warehouseIp,
        tags
    };
}

export function generateRows(total) {
    const rows = new Array(total);
    for (let i = 0; i < total; i++) {
        rows[i] = generateRow(i);
    }
    return rows;
}

export { CATEGORIES };