// =================================================================
// pw-screens-brand-wallet.jsx — the brand's prepaid wallet (payments phase 2).
//
// Balance is read from the money record (never stored in the browser), per currency, split into
// available and held. A top-up hands the browser to the gateway the brand's billing country picks:
// Stripe (redirect) or PayU (signed form post). The wallet is credited only when the gateway's
// verified confirmation reaches the API — never by this screen, and never by the return redirect.
//
// The brand pays amount + DropCap's gateway fee + GST; the wallet is credited the amount. The form
// shows that breakdown (from the API's quote) before the brand pays. Every confirmed top-up gets a
// tax invoice, linked from the history as a printable page. While DropCap's GST details are not
// configured, invoices are withheld and a banner says why.
//
// Live mode talks to /advertiser/v1/wallet* with the advertiser token (advCall, defined in
// pw-screens-recommendations.jsx). Demo mode renders the `brandWallet` / `brandInvoices` fixtures in
// paywall-data.js and never pretends money arrived.
// =================================================================
const BW_CURRENCIES_STRIPE = ["USD", "EUR", "GBP", "AUD", "CAD", "SGD", "AED"];
const BW_STATUS_TONE = { succeeded: "good", failed: "warn", checkout_open: "info", created: "neutral" };
const BW_STATUS_LABEL = { succeeded: "Credited", failed: "Failed", checkout_open: "Awaiting payment", created: "Started" };
const BW_RETURN_MSG = {
success: { tone: "info", text: "Payment submitted. Your balance updates as soon as the gateway confirms it — usually within a minute." },
cancelled: { tone: "info", text: "Checkout cancelled. Nothing was charged." },
failed: { tone: "warn", text: "The payment failed at the gateway. Nothing was credited." },
pending: { tone: "info", text: "The gateway reports the payment as pending. It will be credited when it clears." },
unverified: { tone: "warn", text: "We could not verify the gateway's response, so nothing was credited. If you were charged, contact support with the reference." },
error: { tone: "warn", text: "The payment could not be confirmed. If you were charged, contact support with the reference." },
};
const BW_TREATMENT_LABEL = {
intra_state: "CGST + SGST (same state as DropCap)",
inter_state: "IGST (different state from DropCap)",
export: "Export of services — zero-rated under LUT",
domestic_unsplit: "GST (state split pending DropCap configuration)",
};
const bwMoney = (minor, currency) => {
const n = Number(minor || 0) / 100;
try { return new Intl.NumberFormat(undefined, { style: "currency", currency }).format(n); }
catch (e) { return `${n.toFixed(2)} ${currency}`; }
};
const bwPct = (bps) => `${(Number(bps || 0) / 100).toFixed(Number(bps) % 100 ? 2 : 0)}%`;
const bwNewKey = () => (crypto.randomUUID ? crypto.randomUUID() : `k-${Date.now()}-${Math.random().toString(16).slice(2)}`);
// Demo-mode quote: the same arithmetic as the API (brandWalletService.topupBreakdown / 0054
// brand_topup_breakdown). Live mode always asks the API.
const bwRound = (minor, bps) => Math.floor((minor * bps + 5000) / 10000);
const bwBreakdown = (amount_minor, currency, fee_bps, gst_bps, tax_treatment) => {
const fee_minor = bwRound(amount_minor, fee_bps);
const taxable_minor = amount_minor + fee_minor;
let cgst_minor = 0, sgst_minor = 0, igst_minor = 0, gst_minor = 0;
if (tax_treatment === "intra_state") { cgst_minor = bwRound(taxable_minor, gst_bps / 2); sgst_minor = cgst_minor; gst_minor = 2 * cgst_minor; }
else if (tax_treatment === "inter_state") { igst_minor = bwRound(taxable_minor, gst_bps); gst_minor = igst_minor; }
else if (tax_treatment === "domestic_unsplit") { gst_minor = bwRound(taxable_minor, gst_bps); }
return { currency, amount_minor, fee_bps, fee_minor, gst_bps, tax_treatment, taxable_minor, cgst_minor, sgst_minor, igst_minor, gst_minor, charge_minor: taxable_minor + gst_minor };
};
// GSTIN check for quick feedback while typing. The API validates again (and the database a third time).
const BW_GSTIN_CHARS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const bwGstinValid = (g) => {
if (!/^[0-9]{2}[A-Z]{5}[0-9]{4}[A-Z][1-9A-Z]Z[0-9A-Z]$/.test(g)) return false;
const st = Number(g.slice(0, 2));
if (!((st >= 1 && st <= 38) || st === 97)) return false;
let s = 0;
for (let i = 0; i < 14; i++) { const p = BW_GSTIN_CHARS.indexOf(g[i]) * (i % 2 ? 2 : 1); s += Math.floor(p / 36) + (p % 36); }
return BW_GSTIN_CHARS[(36 - (s % 36)) % 36] === g[14];
};
// PayU needs the browser to POST signed fields; a redirect would drop them and the hash with them.
const bwSubmitForm = (url, fields) => {
const form = document.createElement("form");
form.method = "POST";
form.action = url;
Object.entries(fields || {}).forEach(([k, v]) => {
const input = document.createElement("input");
input.type = "hidden"; input.name = k; input.value = v;
form.appendChild(input);
});
document.body.appendChild(form);
form.submit();
};
// ---- Printable tax invoice. Every value is escaped: names and addresses are brand-entered text. ----
const bwEsc = (s) => String(s == null ? "" : s).replace(/[&<>"']/g, c => ({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" }[c]));
const bwInvoiceHtml = (inv) => {
const m = (minor) => bwEsc(bwMoney(minor, inv.currency));
const a = inv.recipient.address || {};
const addr = [a.line1, a.line2, a.city, a.region, a.postal_code, inv.recipient.country].filter(Boolean).map(bwEsc).join(", ");
const taxRows = [];
if (inv.tax_treatment === "intra_state") {
taxRows.push(["CGST", inv.cgst_bps, inv.cgst_minor], ["SGST", inv.sgst_bps, inv.sgst_minor]);
} else if (inv.tax_treatment === "inter_state") {
taxRows.push(["IGST", inv.igst_bps, inv.igst_minor]);
} else {
taxRows.push(["IGST", 0, 0]);
}
return `Tax invoice ${bwEsc(inv.invoice_no)}
Tax Invoice
${inv.tax_treatment === "export" ? "Export of services" : "Original for recipient"}