checkjebon-js/example.browser.html at main · supermarkt/checkjebon-js · GitHub

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<!DOCTYPE html>
<html lang="en">

<!-- For readability, the <head> section is placed below the body, which is not standard HTML practice but is done here to highlight the actual demo. -->

<body>

  <script src="checkjebon.js"></script>

  <h1>Checkjebon Browser Example</h1>
  <label for="shopping-list">Enter your shopping list (one item per line):</label><br>
  <textarea id="shopping-list">1,5 liter halfvolle melk
Knoflooksaus
400 g shoarma
Pita brood
Kipschnitzel
250 gram kipfilet
1 kilo bananen
1 liter coca cola
kokosbrood
500 ml soep
halvarine</textarea><br>
  <button id="check-btn">Check Prices</button>
  <button id="open-checkjebon-btn" type="button">Open on Checkjebon</button>
  <h2>Prices</h2>
  <div id="last-updated"></div>
  <div id="supermarket-table"></div>
  <h2>Details</h2>
  <div id="price-summary"></div>

  <hr>

  <h1>Multi-Supermarket Shopping Optimizer</h1>
  <p>Find the optimal combination of supermarkets to minimize total cost!</p>
  <label for="max-stores">Maximum stores to visit:</label>
  <input type="number" id="max-stores" value="3" min="1" max="10" style="width: 60px;"><br><br>
  <label for="selected-stores">Selected supermarket codes (comma-separated):</label><br>
  <input type="text" id="selected-stores" value="ah,aldi,dirk,jumbo,lidl,vomar" style="width: 100%; max-width: 500px;"><br><br>
  <button id="optimize-btn">Optimize Shopping List</button>
  <h2>Optimal Shopping Plan</h2>
  <div id="optimize-result"></div>

  <h2>JSON</h2>
  <pre id="result"></pre>

  <script>
    function formatSupermarketPrices(data) {
      if (!Array.isArray(data)) return '';
      return data.map(sup => {
        const total = sup.products.reduce((sum, p) => sum + (typeof p.price === 'number' ? p.price : 0), 0);
        let iconHtml = sup.icon ? `<img src="${sup.icon}" alt="icon" style="height:1em;vertical-align:middle;margin-right:0.5em;">` : '';
        let html = `<strong>${iconHtml}${sup.name} <small>(${sup.code})</small></strong> &middot; €${total.toFixed(2)}<ul>`;
        html += sup.products.map(p => {
          let prodText = '';
          if (p.isEstimate) {
            prodText = `<em>${p.originalQuery} &middot; €${p.price?.toFixed(2) ?? '?'}</em> <small>(geschat)</small>`;
          } else {
            const name = p.name || p.originalQuery;
            const amount = p.amount ? p.amount + ' ' : '';
            if (p.link) {
              prodText = `<a href="${p.link}" target="_blank">${amount}${name}</a> &middot; €${p.price?.toFixed(2) ?? '?'}`;
            } else {
              prodText = `${amount}${name} &middot; €${p.price?.toFixed(2) ?? '?'}`;
            }
          }
          return `<li>${prodText}</li>`;
        }).join('');
        html += '</ul>';
        return html;
      }).join('<hr>');
    }

    function formatSupermarketTable(data) {
      if (!Array.isArray(data)) return '';
      // Calculate total price for each supermarket
      const rows = data.map(sup => {
        const total = sup.products.reduce((sum, p) => sum + (typeof p.price === 'number' ? p.price : 0), 0);
        return { name: sup.name, code: sup.code, icon: sup.icon, total };
      });
      // Sort by total price ascending
      rows.sort((a, b) => a.total - b.total);
      let html = '<table border="1" cellpadding="6" style="margin-bottom:1em"><thead><tr><th>Supermarkt</th><th>Code</th><th>Icon</th><th>Total</th></tr></thead><tbody>';
      html += rows.map(row => `<tr><td>${row.name}</td><td>${row.code}</td><td>${row.icon ? `<img src='${row.icon}' alt='icon' style='height:1em;'>` : ''}</td><td>€${row.total.toFixed(2)}</td></tr>`).join('');
      html += '</tbody></table>';
      return html;
    }

    document.getElementById('check-btn').onclick = async function () {
      const textarea = document.getElementById('shopping-list');
      const result = document.getElementById('result');
      const priceSummary = document.getElementById('price-summary');
      const supermarketTable = document.getElementById('supermarket-table');
      const lastUpdatedDiv = document.getElementById('last-updated');
      const items = textarea.value.split(/\n+/).map(s => s.trim()).filter(Boolean);
      result.textContent = 'Loading...';
      priceSummary.innerHTML = '';
      supermarketTable.innerHTML = '';
      lastUpdatedDiv.textContent = '';
      if (!window.checkjebon || !window.checkjebon.getPricesForProducts) {
        result.textContent = 'checkjebon library not loaded.';
        return;
      }
      try {
        const data = await window.checkjebon.getPricesForProducts(items);
        supermarketTable.innerHTML = formatSupermarketTable(data);
        priceSummary.innerHTML = formatSupermarketPrices(data);
        result.textContent = JSON.stringify(data, null, 2);
        // Show last updated info
        const lastUpdated = window.checkjebon.pricesLastUpdated && window.checkjebon.pricesLastUpdated();
        if (lastUpdated) {
          lastUpdatedDiv.textContent = 'Last update: ' + new Date(lastUpdated).toLocaleString();
        } else {
          lastUpdatedDiv.textContent = 'Last update: unknown';
        }
      } catch (e) {
        result.textContent = 'Error: ' + e.message;
      }
    };

    document.getElementById('open-checkjebon-btn').onclick = function () {
      const textarea = document.getElementById('shopping-list');
      const url = window.checkjebon.getCheckjebonLink(textarea.value);
      window.open(url, '_blank');
    };

    document.getElementById('optimize-btn').onclick = async function () {
      const textarea = document.getElementById('shopping-list');
      const maxStores = parseInt(document.getElementById('max-stores').value);
      const selectedStores = document.getElementById('selected-stores').value
        .split(',')
        .map(s => s.trim())
        .filter(Boolean);
      const optimizeResult = document.getElementById('optimize-result');

      const items = textarea.value.split(/\n+/).map(s => s.trim()).filter(Boolean);
      optimizeResult.innerHTML = '<p>Loading...</p>';

      if (!window.checkjebon || !window.checkjebon.getOptimalShoppingPlan) {
        optimizeResult.innerHTML = '<p style="color:red;">checkjebon library not loaded or function not available.</p>';
        return;
      }

      try {
        const result = await window.checkjebon.getOptimalShoppingPlan(items, maxStores, selectedStores);

        let html = `<p><strong>Total Cost: €${result.totalCost.toFixed(2)}</strong></p>`;
        html += `<p><strong>Stores to Visit: ${result.supermarkets.length}</strong></p>`;

        for (const store of result.supermarkets) {
          const storeTotal = store.products.reduce((sum, p) => sum + (typeof p.price === 'number' ? p.price : 0), 0);
          let iconHtml = store.icon ? `<img src="${store.icon}" alt="icon" style="height:1.5em;vertical-align:middle;margin-right:0.5em;">` : '';
          html += `<h3>${iconHtml}${store.name} (${store.code}) - €${storeTotal.toFixed(2)}</h3>`;
          html += '<ul>';
          for (const product of store.products) {
            console.log(product);
            const amount = product.amount ? product.amount + ' ' : '';
            const priceStr = typeof product.price === 'number' ? `€${product.price.toFixed(2)}` : '?';
            if (product.link) {
              html += `<li><a href="${product.link}" target="_blank">${amount}${product.name}</a> - ${priceStr}</li>`;
            } else if (!product.isEstimate) {
              html += `<li>${amount}${product.name} - ${priceStr}</li>`;
            } else {
              html += `<li><em>${product.originalQuery} - ${priceStr} (geschat)</em></li>`;
            }
          }
          html += '</ul>';
        }

        optimizeResult.innerHTML = html;
      } catch (e) {
        optimizeResult.innerHTML = `<p style="color:red;">Error: ${e.message}</p>`;
      }
    };
  </script>
</body>


<!-- For readability, the <head> section is placed below the body, which is not standard HTML practice but is done here to highlight the actual demo. -->
<head>
  <meta charset="UTF-8">
  <title>Checkjebon Browser Example</title>
  <style>
    body {
      font-family: sans-serif;
      margin: 2em;
    }

    textarea {
      width: 100%;
      height: 100px;
    }

    button {
      margin: 1em 0;
    }

    pre {
      background: #f4f4f4;
      padding: 1em;
      border-radius: 4px;
    }

    table {
      width: 100%;
      border-collapse: collapse;
      margin: 1em 0;
    }

    th,
    td {
      padding: 0.75em;
      text-align: left;
      border: 1px solid #ddd;
    }

    th {
      background: #f2f2f2;
    }
  </style>
</head>

</html>