Bike Rental Invoice Generator
Complete an invoice generator for a bike rental scenario: include real content, actionable controls, clear status feedback, and responsive layouts.
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<header class="mast"><div><span class="eyebrow">terminal / Billing Generator / INTERMEDIATE</span><h1>Bike Rental Invoice Generator</h1><p class="intro">Complete an invoice generator for a bike rental scenario: include real content, actionable controls, clear status feedback, and responsive layouts.</p></div><span class="scenario">Bike rental</span></header>
<div class="composition-split"><aside class="split-note"><b>CASE 02</b><span>Master semantic structure, responsive composition, keyboard operation, and state synchronization for the invoice builder.</span></aside><section class="demo" aria-label="Interactive area of the bike rental invoice generator"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Bike Rental SESSION</span><h2>Rental time slot timer</h2></div><output id="workflowSessionClock">00:45</output><label>Round Duration<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>sec</span></label><button id="workflowSessionToggle" class="action primary" type="button">Start rental</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Rental period progress" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:commerce-service-flows-invoice-maker --><div class="invoice-demo"><section class="panel"><header><span class="eyebrow">INVOICE MAKER</span><h2>Bike Rental Invoice</h2></header><div id="invoiceRows" class="invoice-rows"><label><span>Bike Rental Overview</span><input data-invoice-quantity type="number" min="0" value="1" aria-label="Bike rental overview count"><input data-invoice-price type="number" min="0" value="45" aria-label="Bike Rental Overview Unit Price"><output></output></label><label><span>Bike rental plan</span><input data-invoice-quantity type="number" min="0" value="2" aria-label="Bike Rental Plan Quantity"><input data-invoice-price type="number" min="0" value="75" aria-label="Bike rental plan unit price"><output></output></label><label><span>Bike Rental Inspiration</span><input data-invoice-quantity type="number" min="0" value="3" aria-label="Bike Rental Inspiration Count"><input data-invoice-price type="number" min="0" value="105" aria-label="Bike rental inspiration price"><output></output></label></div><label class="invoice-tax">Tax rate <input id="invoiceTax" type="range" min="0" max="20" value="6" data-core-bridge="commerce-service-flows-invoice-maker"><output id="invoiceTaxLabel">6%</output></label></section><aside class="invoice-paper"><span>INVOICE / LOCAL</span><h3>Bike rental</h3><dl id="invoiceSummary"></dl><div><span>Tax Amount</span><strong id="invoiceTaxValue"></strong></div><footer><span>Total Amount Due</span><strong id="invoiceTotal"></strong></footer><button id="invoicePrint" type="button">Print Preview</button></aside></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 interaction checkpoints</strong><ol id="workflowSessionLaps" aria-label="Round Log"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:commerce-service-flows-invoice-maker */
const invoiceRows=[...document.querySelectorAll('.invoice-rows label')];function renderInvoice(){let subtotal=0;const summary=[];invoiceRows.forEach(row=>{const quantity=Number(row.querySelector('[data-invoice-quantity]').value)||0;const price=Number(row.querySelector('[data-invoice-price]').value)||0;const line=quantity*price;subtotal+=line;row.querySelector('output').textContent='¥'+line;summary.push([row.querySelector('span').textContent,line]);});const taxRate=Number(document.querySelector('#invoiceTax').value);const tax=Math.round(subtotal*taxRate)/100;document.querySelector('#invoiceTaxLabel').textContent=taxRate+'%';document.querySelector('#invoiceTaxValue').textContent='¥'+tax.toFixed(2);document.querySelector('#invoiceTotal').textContent='¥'+(subtotal+tax).toFixed(2);document.querySelector('#invoiceSummary').innerHTML=summary.map(([name,value])=>'<div><dt>'+name+'</dt><dd>¥'+value+'</dd></div>').join('');announce('Total bill '+(subtotal+tax).toFixed(2)+' yuan');}document.querySelectorAll('.invoice-demo input').forEach(input=>input.addEventListener('input',renderInvoice));document.querySelector('#invoicePrint').addEventListener('click',()=>announce('Print preview is ready; this demo will not call the system print dialog'));renderInvoice();
/* 11DZ_CORE_SCRIPT_END */
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workflowBridgeReset();
</script>
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