Files
dtf-system/web/checkout.js
Cauê Faleiros 7b6675d4d4
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feat: two-column payment page with card by default and PIX on its own page
The payment page puts paying on the left and the order summary on the
right (above it on phones). Card is preselected and paid on the page with
Mercado Pago's form, in the Site's colours and with the order's e-mail;
choosing PIX shows a Pagar button that opens /pagamento/pix with the QR code
and copy-and-paste code, waiting there for the confirmation. A confirmed
payment shows "Pagamento confirmado" with the order number and a button to
the customer's orders. The payment buttons no longer restyle every button
inside the form.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 13:10:05 -03:00

384 lines
19 KiB
JavaScript

/* Checkout bridge only: approved commercial functions in web/index.html stay intact.
The cart sends the order; the quote is paid on its own page (/pagamento). */
(() => {
const status = document.getElementById('checkoutStatus');
const actions = document.getElementById('checkoutActions');
const resumo = document.getElementById('pagResumo');
const naPagina = () => ['pagamento','pix'].includes(document.documentElement.dataset.rota);
const naPix = () => document.documentElement.dataset.rota === 'pix';
let shownCart = null;
let busy = false;
let draftId = localStorage.getItem('dtf-quote');
let requestKey = localStorage.getItem('dtf-request-key');
let requestBody = localStorage.getItem('dtf-request-body');
let quotedCart = localStorage.getItem('dtf-quote-cart');
let refreshVersion = 0;
function cartSnapshot() {
const items=[...pedido,...(itemAtual?[itemAtual]:[])];
return JSON.stringify({customer:cliente,delivery:entrega,items:items.map(item=>({
mode:item.modo,metres:item.metros,grade:item.nota,production:item.production,
quality:item.qualityStatus,
acknowledged:item.qualityAcknowledged,
files:(item.localFiles||[]).map(file=>({name:file.name,size:file.size,lastModified:file.lastModified}))
}))});
}
function clearDraft() {
draftId=null;quotedCart=null;requestKey=null;requestBody=null;
for(const key of ['dtf-quote','dtf-quote-cart','dtf-request-key','dtf-request-body'])
localStorage.removeItem(key);
actions.replaceChildren();
}
const api = async (path, body) => {
const response = await fetch('/api'+path, {
credentials: 'same-origin', headers: {'Content-Type':'application/json'},
...(body === undefined ? {} : {method:'POST', body:JSON.stringify(body)})
});
const text = await response.text();
let data;
try { data = text ? JSON.parse(text) : {}; }
catch (_) { throw new Error(response.ok ? 'Resposta inválida do serviço.' : 'O serviço está indisponível. Tente novamente em instantes.'); }
if (!response.ok) { const error=new Error(typeof data.detail === 'string' ? data.detail : 'Confira os dados do pedido ('+response.status+').');error.status=response.status;throw error; }
return data;
};
const ready = api('/session');
ready.then(session=>{
window.dtfUploadMaxBytes=session.max_upload_bytes;
const limit=document.getElementById('zLimite');
if(limit)limit.textContent='Até '+(session.max_upload_bytes/1048576).toFixed(0)+
' MB por arquivo enquanto a verificação de segurança para arquivos grandes é preparada.';
}).catch(()=>{});
window.dtfSessionReady=ready;
window.dtfApi=api;
ready.catch(error => { status.textContent = error.message; });
function message(text) { status.textContent = text; }
function button(label, handler, into = actions, className = 'pagBtn') {
const el = document.createElement('button');
el.type = 'button';
el.className = className;
el.textContent = label;
el.onclick = handler;
into.append(el);
return el;
}
function node(tag, text, className) {
const el=document.createElement(tag);
if (text!=null) el.textContent=text;
if (className) el.className=className;
return el;
}
// What the customer is paying for, from the server's approval.
function pintaResumo(quote) {
const approved = quote ? quote.approved : null;
resumo.hidden = !approved;
if (!approved) { resumo.replaceChildren(); return; }
const linha = (label, value, className='l') => {
const row=document.createElement('div'); row.className=className;
const name=document.createElement('span'); name.textContent=label;
const amount=document.createElement('b'); amount.textContent=value;
row.append(name,amount); return row;
};
const rows = approved.items.map(item => linha(
(MODOS[item.mode]?.tit || item.mode)+' · '+fmtM(Number(item.billed_metres))+' m', rs(item.total_cents/100)));
const pickup = approved.freight.service === 'pickup';
rows.push(linha(pickup ? 'Retirada em Franca' : 'Frete',
approved.freight.total_cents ? rs(approved.freight.total_cents/100) : 'Grátis'));
rows.push(linha('Total', rs(approved.total_cents/100), 'tot'));
resumo.replaceChildren(node('h4','Resumo do pedido'), ...rows);
}
function semPedido() {
pintaResumo(null);
actions.replaceChildren();
message('Nenhum pedido aguardando pagamento.');
button('Ir para o carrinho', () => vaiPara(CARRINHO));
}
async function upload(file) {
const session=await ready;
return window.dtfUpload(file,{api,progress:message,scope:session.cart_scope});
}
window.dtfFreight = async () => {
const cep = entrega.cep;
try {
const result = await api('/freight',{service:'mock-standard',postal_code:cep});
if (entrega.cep !== cep || entrega.tipo !== 'frete') return;
entrega.valor = result.total_cents/100;
entrega.cotado = true;
$('cepMsg').textContent = 'Frete estimado: '+rs(entrega.valor)+'.';
pintaEntrega();
} catch(error) { $('cepMsg').textContent = error.message; }
};
window.dtfCheckout = async () => {
if (busy) return;
// The cart that was sent goes straight to its payment; a changed cart is sent again.
if (draftId && quotedCart === cartSnapshot()) { await refresh(true); return; }
if (draftId) clearDraft();
if (!clienteOk() || !entrega.cotado) return;
if (!enderecoOk()) return message('Preencha o endereço de entrega.');
if (!cartPodeEnviar()) return message('Revise a qualidade e confirme a ressalva de cada item antes de enviar o pedido.');
const cart = [...pedido,...(itemAtual?[itemAtual]:[])];
if (!cart.length) return message('Adicione um item ao pedido.');
const initialCart=cartSnapshot();
busy = true;
$('bPagar').disabled = true;
try {
await ready;
if((await api('/session')).cart_scope !== (await ready).cart_scope) throw new Error('Sua conta ou sessão mudou. Recarregue a página antes de enviar o carrinho.');
const items=[];
for (const item of cart) {
if (!item.localFiles?.length) throw new Error('Selecione novamente os arquivos deste item.');
const uploads=[];
for (const file of item.localFiles) uploads.push(await upload(file));
if (item.production?.version!==2 || item.production.sources?.length!==uploads.length)
throw new Error('A montagem deste item precisa ser refeita antes da cotação.');
items.push({mode:item.modo, metres:String(item.metros), grade:item.nota, uploads,
production:{...item.production,sources:item.production.sources.map((source,index)=>({
upload_id:uploads[index],...source}))},
quality_status:item.qualityStatus,quality_acknowledged:item.qualityAcknowledged});
}
const content = {customer:{...cliente},items,freight:{service:entrega.tipo==='retira'?'pickup':'mock-standard',postal_code:entrega.tipo==='retira'?'':entrega.cep}};
const destination = destinoApi();
if (destination) content.destination = destination;
if (cartSnapshot()!==initialCart) throw new Error('O carrinho mudou durante o envio. Confira os itens e envie de novo.');
const serialized = JSON.stringify(content);
if (!requestKey || serialized !== requestBody) {
requestKey = crypto.randomUUID(); requestBody = serialized;
localStorage.setItem('dtf-request-key',requestKey);
localStorage.setItem('dtf-request-body',requestBody);
}
const quote = await api('/quotes',{request_key:requestKey,...content});
quotedCart=initialCart;localStorage.setItem('dtf-quote-cart',quotedCart);
draftId=quote.id; localStorage.setItem('dtf-quote',draftId);
await refresh(true);
} catch(error) { message(error.message); }
finally { busy=false; pintaEntrega(); }
};
// `go`: the customer asked to pay, so the cart page moves to the payment page.
async function refresh(go) {
if (!naPagina()) { if (!go || !draftId) return; }
else if (!draftId) { semPedido(); return; }
const version=++refreshVersion, shownId=draftId;
try {
await ready;
const quote=await api('/quotes/'+shownId);
if(version!==refreshVersion || draftId!==shownId) return;
if (!naPagina()) { message(''); vaiPara(PAGAMENTO); return; }
shownCart=cartSnapshot();
unmountCard();
actions.replaceChildren();
message('');
pintaResumo(quote);
document.querySelector('.pagVolta').hidden = quote.status==='paid';
if (quote.status==='paid') { confirmado(quote); return; }
if (naPix() && quote.status!=='approved') { vaiPara(PAGAMENTO); return; }
if (!quotedCart || quotedCart!==cartSnapshot()) {
message('O carrinho mudou ou não está disponível neste navegador. A cotação anterior continua separada; envie o carrinho atual para uma nova revisão.');
button('Enviar carrinho atual',()=>{clearDraft();window.dtfCheckout();});
return;
}
if (quote.status==='pending_review') {
message((await ready).environment==='local'
? 'Arquivos enviados. No Kanban, confira metragem e nota e aprove a cotação '+draftId.slice(0,8)+'.'
: 'Arquivos enviados. Nossa equipe está conferindo a cotação '+draftId.slice(0,8)+'; o valor final aparece aqui em seguida.');
} else if (quote.status==='approved') {
if ((await ready).payment_provider === 'mercadopago') {
if (naPix()) await paginaPix(quote, version);
else await escolhaPagamento(quote, version);
return;
}
if ((await ready).environment !== 'local') {
message('Cotação revisada. O pagamento online ainda não está disponível.');
return;
}
// Local stack only: the simulated payment.
message('Total validado no servidor: '+rs(quote.approved.total_cents/100)+' · inclui frete. Cotação válida por 24 horas.');
button('Criar pedido de teste',async event=>{
if (!quotedCart || quotedCart!==cartSnapshot()) { await refresh(); return; }
event.target.disabled=true;
try {
const order=await api('/orders/dev-paid',{quote_id:draftId});
pedido=[]; itemAtual=null; limpaPaineis();
await window.dtfClearCart?.();
message('Pedido #'+order.number+' criado e disponível no Kanban.');
await refresh();
} catch(error) { message(error.message); event.target.disabled=false; }
});
} else {
message('Cotação expirada. Envie o carrinho de novo para pagar.');
button('Voltar ao carrinho',()=>{clearDraft();vaiPara(CARRINHO);});
}
} catch(error) {
if(version!==refreshVersion || draftId!==shownId) return;
message(error.message);
actions.replaceChildren();
button('Limpar referência e tentar de novo',clearDraft);
}
}
// The order is created by Mercado Pago's notification, never by this page,
// so after paying the page only waits for the order to exist.
let waitTimer=null;
function waitForOrder() {
clearInterval(waitTimer);
waitTimer=setInterval(async()=>{
try {
const quote=await api('/quotes/'+draftId);
if (quote.status==='paid') {
clearInterval(waitTimer);
pedido=[]; itemAtual=null; limpaPaineis();
await window.dtfClearCart?.();
await refresh();
}
} catch(_) {}
},3000);
}
function confirmado(quote) {
clearInterval(waitTimer);
const box=node('div',null,'confirmado');
box.append(node('h4','Pagamento confirmado'),
node('p','Pedido #'+quote.order.number+' recebido e enviado para a produção. Você acompanha cada etapa em Meus pedidos.'));
button('Ver meus pedidos',()=>location.assign('/portal.html?order='+quote.order.id),box);
actions.append(box);
}
const cartOk=()=>!!quotedCart && quotedCart===cartSnapshot();
// Paying: card (the default, paid on this page) or PIX (paid on its own page).
async function escolhaPagamento(quote, version) {
const session=await ready;
const opcoes=[...(session.payment_public_key?[['card','Cartão de crédito']]:[]),['pix','PIX']];
let escolhido=opcoes[0][0];
const grupo=node('div',null,'metodos');
grupo.setAttribute('role','radiogroup'); grupo.setAttribute('aria-label','Forma de pagamento');
const area=node('div',null,'area');
const radios=opcoes.map(([key,label])=>{
const el=button(label,()=>{ if(escolhido!==key){ escolhido=key; pinta(); } },grupo,'metodo');
el.setAttribute('role','radio'); el.dataset.metodo=key;
return el;
});
actions.append(node('h4','Forma de pagamento'),grupo,area);
async function pinta() {
radios.forEach(el=>el.setAttribute('aria-checked',String(el.dataset.metodo===escolhido)));
unmountCard(); area.replaceChildren(); message('');
if (escolhido==='card') { await showCard(quote.approved, area, version); return; }
area.append(node('p','Ao pagar, mostramos o QR code e o código copia e cola. O pedido vai para a produção assim que o PIX é confirmado.','pagNota'));
button('Pagar',async event=>{
if (!cartOk()) { await refresh(); return; }
event.target.disabled=true;
try {
await api('/payments/intent',{quote_id:draftId,method:{type:'pix'}});
vaiPara(PAGAMENTO_PIX);
} catch(error) { message(error.message); event.target.disabled=false; }
},area);
}
await pinta();
}
// The PIX page. The intent is idempotent on the quote, so reopening this
// page shows the same QR code instead of creating another charge.
async function paginaPix(quote, version) {
let intent;
try { intent=await api('/payments/intent',{quote_id:draftId,method:{type:'pix'}}); }
catch(error) {
if (version!==refreshVersion) return;
message(error.message);
button('Escolher outra forma de pagamento',()=>vaiPara(PAGAMENTO),actions,'pagBtn sec');
return;
}
if (version!==refreshVersion) return;
if (!intent.pix_qr_code) { message('Não foi possível gerar o PIX. Tente de novo em instantes.'); return; }
const box=node('div',null,'pixBox');
box.append(node('h4','Pague com PIX'),
node('p','Abra o app do seu banco, escolha pagar com PIX e leia o QR code ou cole o código abaixo. Valor: '+rs(intent.total_cents/100)+'.','pagNota'));
if (intent.pix_qr_code_base64) {
const img=document.createElement('img');
img.src='data:image/png;base64,'+intent.pix_qr_code_base64;
img.alt='QR code do PIX';img.width=240;img.height=240;
box.append(img);
}
const linha=node('div',null,'codigo');
const code=document.createElement('input');
code.readOnly=true;code.value=intent.pix_qr_code;code.setAttribute('aria-label','Código PIX copia e cola');
linha.append(code);
const copiar=button('Copiar código',async()=>{
try{ await navigator.clipboard.writeText(intent.pix_qr_code); copiar.textContent='Código copiado'; }
catch(_){ code.select(); }
},linha);
box.append(linha,node('p','Aguardando a confirmação do pagamento…','aguarda'));
button('Escolher outra forma de pagamento',()=>vaiPara(PAGAMENTO),box,'pagBtn sec');
actions.append(box);
waitForOrder();
}
// Card: Mercado Pago's own form (Card Payment Brick). The card is typed into
// Mercado Pago's secure fields and becomes a one-time token; the number never
// reaches this page's code or our server.
let sdkLoading=null;
function loadMercadoPago() {
if (window.MercadoPago) return Promise.resolve();
sdkLoading = sdkLoading || new Promise((resolve,reject)=>{
const script=document.createElement('script');
script.src='https://sdk.mercadopago.com/js/v2';
script.onload=resolve;
script.onerror=()=>{sdkLoading=null;reject(new Error('Não foi possível carregar o formulário do Mercado Pago.'));};
document.head.append(script);
});
return sdkLoading;
}
let cardBrick=null;
function unmountCard() {
if (cardBrick) { try { cardBrick.unmount(); } catch(_) {} cardBrick=null; }
}
async function showCard(approved, into, version) {
const holder=node('div');
holder.id='cardPaymentBrick';
into.append(holder);
try { await loadMercadoPago(); }
catch(error) { message(error.message); return; }
const session=await ready;
// The customer may have switched to PIX, or the page re-rendered, meanwhile.
if (!holder.isConnected || version!==refreshVersion) return;
unmountCard();
const mp=new window.MercadoPago(session.payment_public_key,{locale:'pt-BR'});
cardBrick=await mp.bricks().create('cardPayment','cardPaymentBrick',{
initialization:{amount:approved.total_cents/100, payer:{email:approved.customer.mail}},
customization:{paymentMethods:{maxInstallments:12},
visual:{style:{customVariables:{baseColor:'#FFA81A',buttonTextColor:'#03060B'}}}},
callbacks:{
onReady:()=>{},
onError:error=>{ console.error(error); message('Erro no formulário do cartão. Confira os dados e tente de novo.'); },
onSubmit:async data=>{
if (!cartOk()) { await refresh(); throw new Error('cart changed'); }
message('');
const result=await api('/payments/intent',{quote_id:draftId,method:{
type:'card', token:data.token, payment_method_id:data.payment_method_id,
installments:Number(data.installments)||1,
issuer_id:data.issuer_id==null?null:String(data.issuer_id)}});
if (result.status==='approved' || result.status==='pending') {
unmountCard();
into.replaceChildren(node('p',result.status==='approved'
? 'Pagamento aprovado. Confirmando seu pedido…'
: 'Pagamento em análise pelo Mercado Pago. Esta página atualiza assim que ele for confirmado.','pagNota'));
waitForOrder();
} else {
message('Pagamento recusado pelo Mercado Pago ('+(result.status_detail||result.status)+'). '+
'Confira os dados ou use outro cartão.');
throw new Error('rejected');
}
}
}
});
if (!holder.isConnected || version!==refreshVersion) unmountCard();
}
const quoteFromPortal=new URLSearchParams(location.search).get('quote');
if(quoteFromPortal && /^[0-9a-f-]{36}$/.test(quoteFromPortal)){
if(draftId!==quoteFromPortal){quotedCart=null;localStorage.removeItem('dtf-quote-cart');}
draftId=quoteFromPortal;localStorage.setItem('dtf-quote',draftId);
}
// Re-render the payment page only when the cart really changed: re-rendering
// would remount the card form under the customer's typing.
window.addEventListener('dtf-cart-changed',()=>{if(draftId && naPagina() && shownCart!==cartSnapshot()) refresh();});
// The cart page keeps only the sending progress and errors, never a payment.
window.addEventListener('dtf-page-changed',()=>{
if (naPagina()) refresh();
else if (!busy) { refreshVersion++; message(''); actions.replaceChildren(); pintaResumo(null); }
});
refresh();
})();