https://desk2quant.com/product-seo.js?v=20261005a

1(function (root, factory) {
2    const api = factory();
3
4    if (typeof module === 'object' && module.exports) {
5        module.exports = api;
6    }
7
8    if (root) {
9        root.Desk2QuantProductSeo = api;
10    }
11})(typeof globalThis !== 'undefined' ? globalThis : this, function () {
12    'use strict';
13
14    const SITE_URL = 'https://desk2quant.com';
15    const COMPLETE_BUNDLE_ID = '164308cd-e3cd-4026-8fdc-337a5955ffff';
16    const VOL_SURFACE_PRODUCT_ID = '928a14d2-64b4-4a73-951d-dcf191fe72ad';
17    const VOL_SURFACE_SEO_IMAGE = `${SITE_URL}/assets/images/blog-heston-vol-surface.png`;
18
19    // Product IDs are stable even when marketing names change. Keep the most
20    // valuable search landing pages on short, durable URLs and fall back to a
21    // deterministic name-based slug for the rest of the catalog.
22    const CURATED_SLUGS_BY_ID = Object.freeze({
23        '73806d69-768b-497e-87b7-d94fa4cfd772': 'quant-interview-problem-book',
24        'c3e4c5cc-6616-4728-b979-782bec4d8811': 'cpp-for-quants',
25        '9ad9f8ac-9872-40c3-82b8-1e6168e65062': 'python-for-quants',
26        '6f4d2332-a1d0-4638-9307-0e2d9fe7453d': 'stochastic-calculus-for-quants',
27        '6b78550d-e130-41d1-9409-92335ce82a6c': 'numerical-methods-for-quants',
28        'a778e6ae-43d1-4cbd-a6a7-6dce693e5f69': 'model-validation-quant-interview',
29        '146ecb42-3df6-41de-a499-14c22b1bd36d': 'pnl-attribution-for-quants',
30        '351aa09b-681b-4da9-9b61-844cf295640c': 'xva-calculus-lab'
31    });
32
33    function slugifyProductName(name) {
34        return String(name || '')
35            .toLowerCase()
36            .replace(/&/g, ' and ')
37            .replace(/\+/g, ' plus ')
38            .replace(/[^a-z0-9]+/g, '-')
39            .replace(/^-+|-+$/g, '')
40            .slice(0, 70)
41            .replace(/-+$/g, '') || 'product';
42    }
43
44    function getProductSlug(product) {
45        const id = product && product.id != null ? String(product.id) : '';
46        return CURATED_SLUGS_BY_ID[id] || slugifyProductName(product && product.name);
47    }
48
49    function getProductPath(product) {
50        return `/products/${getProductSlug(product)}.html`;
51    }
52
53    function getProductUrl(product) {
54        return `${SITE_URL}${getProductPath(product)}`;
55    }
56
57    function getProductSeoImage(product, fallback = `${SITE_URL}/assets/images/desk2quant-logo.png`) {
58        const image = product && product.cover_image_url;
59        // Merchant listings don't accept SVG product images. The Vol Surface
60        // product historically uses an inline/hosted SVG cover, so route only
61        // that legacy SVG to an existing crawlable PNG. Preserve any future
62        // raster replacement and every other product's cover unchanged.
63        if (product && product.id === VOL_SURFACE_PRODUCT_ID) {
64            const normalized = typeof image === 'string' ? image.trim() : '';
65            if (!normalized || /^data:image\/svg\+xml/i.test(normalized) ||
66                /\.svg(?:[?#]|$)/i.test(normalized)) {
67                return VOL_SURFACE_SEO_IMAGE;
68            }
69        }
70        return image || fallback;
71    }
72
73    // product.html already loads this tiny bootstrap before the product data.
74    // Use it to load conversion modules only for the Complete Bundle, leaving
75    // all other product pages and checkout code untouched.
76    if (typeof document !== 'undefined' && typeof window !== 'undefined') {
77        try {
78            const productId = String(new URLSearchParams(window.location.search).get('id') || '')
79                .replace(/^['"]|['"]$/g, '');
80            if (productId === COMPLETE_BUNDLE_ID) {
81                const modules = [
82                    ['bundle-product-v2-script', '/bundle-product-v2.js?v=20260927a'],
83                    ['bundle-proof-v3-script', '/bundle-proof-v3.js?v=20260927a'],
84                    ['bundle-polish-v4-script', '/bundle-polish-v4.js?v=20260927a']
85                ];
86                modules.forEach(([id, src]) => {
87                    if (document.getElementById(id)) return;
88                    const script = document.createElement('script');
89                    script.id = id;
90                    script.src = src;
91                    script.defer = true;
92                    document.head.appendChild(script);
93                });
94            }
95        } catch (_) {
96            // SEO helpers must remain usable even if enhancement loading fails.
97        }
98    }
99
100    return Object.freeze({
101        SITE_URL,
102        CURATED_SLUGS_BY_ID,
103        slugifyProductName,
104        getProductSlug,
105        getProductPath,
106        getProductUrl,
107        getProductSeoImage
108    });
109});