printer-bridge/test-http.html at main · lakasir/printer-bridge · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Printer Bridge HTTP API Test</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      max-width: 800px;
      margin: 50px auto;
      padding: 20px;
      background-color: #f5f5f5;
    }
    .container {
      background: white;
      padding: 30px;
      border-radius: 8px;
      box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    h1 {
      color: #333;
      margin-top: 0;
    }
    .test-section {
      margin: 20px 0;
      padding: 20px;
      border: 1px solid #e0e0e0;
      border-radius: 4px;
      background-color: #fafafa;
    }
    h2 {
      font-size: 18px;
      margin-top: 0;
      color: #555;
    }
    button {
      background-color: #007bff;
      color: white;
      padding: 12px 24px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-size: 14px;
      margin: 5px;
    }
    button:hover {
      background-color: #0056b3;
    }
    button.secondary {
      background-color: #6c757d;
    }
    button.secondary:hover {
      background-color: #545b62;
    }
    button.success {
      background-color: #28a745;
    }
    button.success:hover {
      background-color: #218838;
    }
    .response {
      margin-top: 15px;
      padding: 15px;
      background-color: #f8f9fa;
      border-left: 4px solid #007bff;
      border-radius: 4px;
      font-family: 'Courier New', monospace;
      font-size: 13px;
      white-space: pre-wrap;
      word-wrap: break-word;
      display: none;
    }
    .response.show {
      display: block;
    }
    .response.error {
      border-left-color: #dc3545;
      background-color: #f8d7da;
      color: #721c24;
    }
    .response.success {
      border-left-color: #28a745;
      background-color: #d4edda;
      color: #155724;
    }
    textarea {
      width: 100%;
      padding: 10px;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-family: 'Courier New', monospace;
      font-size: 13px;
      margin-bottom: 10px;
      box-sizing: border-box;
    }
    .status {
      padding: 10px;
      border-radius: 4px;
      margin-bottom: 20px;
    }
    .status.connected {
      background-color: #d4edda;
      color: #155724;
    }
    .status.disconnected {
      background-color: #f8d7da;
      color: #721c24;
    }
    select {
      width: 100%;
      padding: 8px;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-size: 14px;
      margin-bottom: 10px;
    }
  </style>
</head>
<body>
  <div class="container">
    <h1>Printer Bridge HTTP API Test</h1>

    <div id="connectionStatus" class="status disconnected">
      <strong>Status:</strong> Checking connection...
    </div>

    <!-- Test 1: Get Printers -->
    <div class="test-section">
      <h2>1. Get Available Printers</h2>
      <button onclick="getPrinters()">Get Printers List</button>
      <div id="printers-response" class="response"></div>
    </div>

    <!-- Test 2: Get Settings -->
    <div class="test-section">
      <h2>2. Get Current Settings</h2>
      <button class="secondary" onclick="getSettings()">Get Settings</button>
      <div id="settings-response" class="response"></div>
    </div>

    <!-- Test 3: Print Simple Text -->
    <div class="test-section">
      <h2>3. Print Simple Text</h2>
      <textarea id="simple-text" rows="3" placeholder="Enter text to print...">Hello from Lakasir Printer Bridge!</textarea>
      <button class="success" onclick="printSimpleText()">Print Text</button>
      <div id="print-simple-response" class="response"></div>
    </div>

    <!-- Test 4: Print Receipt -->
    <div class="test-section">
      <h2>4. Print Sample Receipt</h2>
      <button class="success" onclick="printReceipt()">Print Receipt</button>
      <div id="print-receipt-response" class="response"></div>
    </div>

    <!-- Test 5: Print Custom Items -->
    <div class="test-section">
      <h2>5. Print Custom Items (Array)</h2>
      <textarea id="custom-items" rows="6" placeholder="Enter items (one per line)...">Item 1: Coffee - $3.50
Item 2: Tea - $2.50
Item 3: Cake - $5.00
========================
Total: $11.00</textarea>
      <button class="success" onclick="printCustomItems()">Print Items</button>
      <div id="print-custom-response" class="response"></div>
    </div>

    <!-- Test 6: Print Image from URL -->
    <div class="test-section">
      <h2>6. Print Image from URL</h2>
      <input type="text" id="image-url" placeholder="Enter image URL..." value="https://via.placeholder.com/150" style="width: 100%; padding: 8px; margin-bottom: 10px; border: 1px solid #ddd; border-radius: 4px;">
      <button class="success" onclick="printImageUrl()">Print Image URL</button>
      <div id="print-image-url-response" class="response"></div>
    </div>

    <!-- Test 7: Print Image from File -->
    <div class="test-section">
      <h2>7. Print Image from File (Base64)</h2>
      <input type="file" id="image-file" accept="image/*" style="margin-bottom: 10px;">
      <button class="success" onclick="printImageFile()">Print Image File</button>
      <div id="print-image-file-response" class="response"></div>
    </div>

    <!-- Test 8: Print JSON Data -->
    <div class="test-section">
      <h2>8. Test with Raw JSON</h2>
      <textarea id="raw-json" rows="8" placeholder="Enter JSON data...">{
  "text": "Header Text",
  "items": [
    "Line 1",
    "Line 2",
    "Line 3"
  ]
}</textarea>
      <button class="success" onclick="printRawJSON()">Send JSON</button>
      <div id="print-json-response" class="response"></div>
    </div>
  </div>

  <script>
    const API_URL = 'http://localhost:5463';

    // Check connection status on load
    window.addEventListener('load', checkConnection);

    async function checkConnection() {
      const statusDiv = document.getElementById('connectionStatus');
      try {
        const response = await fetch(`${API_URL}/settings`);
        if (response.ok) {
          statusDiv.className = 'status connected';
          statusDiv.innerHTML = '<strong>Status:</strong> Connected to Printer Bridge ✓';
        } else {
          statusDiv.className = 'status disconnected';
          statusDiv.innerHTML = '<strong>Status:</strong> Server error';
        }
      } catch (error) {
        statusDiv.className = 'status disconnected';
        statusDiv.innerHTML = '<strong>Status:</strong> Not connected. Make sure the app is running (npm start)';
      }
    }

    function showResponse(elementId, data, isError = false) {
      const element = document.getElementById(elementId);
      element.className = isError ? 'response error show' : 'response success show';
      element.textContent = typeof data === 'string' ? data : JSON.stringify(data, null, 2);
    }

    async function getPrinters() {
      try {
        const response = await fetch(`${API_URL}/printers`);
        const data = await response.json();
        showResponse('printers-response', data);
      } catch (error) {
        showResponse('printers-response', `Error: ${error.message}`, true);
      }
    }

    async function getSettings() {
      try {
        const response = await fetch(`${API_URL}/settings`);
        const data = await response.json();
        showResponse('settings-response', data);
      } catch (error) {
        showResponse('settings-response', `Error: ${error.message}`, true);
      }
    }

    async function printSimpleText() {
      try {
        const text = document.getElementById('simple-text').value;
        const response = await fetch(`${API_URL}/print`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ text })
        });
        const data = await response.json();

        if (response.ok) {
          showResponse('print-simple-response', data);
        } else {
          showResponse('print-simple-response', data, true);
        }
      } catch (error) {
        showResponse('print-simple-response', `Error: ${error.message}`, true);
      }
    }

    // Receipt text formatter
    function createFormatter(paperWidth = 32) {
      const repeat = (char) => char.repeat(paperWidth);

      const center = (text) => {
        const len = text.length;
        if (len >= paperWidth) return text.slice(0, paperWidth);
        const spaces = Math.floor((paperWidth - len) / 2);
        return " ".repeat(spaces) + text;
      };

      const table2 = (left, right) => {
        const total = paperWidth;
        const leftText = left.slice(0, total);
        const spaceCount = total - leftText.length - right.length;
        const spaces = spaceCount > 0 ? " ".repeat(spaceCount) : "";
        return `${leftText}${spaces}${right}`;
      };

      const table3 = (col1, col2, col3, widths = [6, 18, 8]) => {
        // widths must sum to paperWidth
        const totalWidth = widths.reduce((a, b) => a + b, 0);
        if (totalWidth !== paperWidth) {
          throw new Error(`Sum of column widths (${totalWidth}) must equal paperWidth (${paperWidth})`);
        }

        const c1 = col1.toString().padEnd(widths[0]).slice(0, widths[0]);
        const c2 = col2.toString().padEnd(widths[1]).slice(0, widths[1]);
        const c3 = col3.toString().padStart(widths[2]).slice(0, widths[2]);
        return `${c1}${c2}${c3}`;
      };

      return { repeat, center, table2, table3 };
    }

    async function printReceipt() {
      try {
        const settingsResponse = await fetch(`${API_URL}/settings`);
        const settings = await settingsResponse.json();
        const paperWidth = settings.paperWidth || 32;

        const f = createFormatter(paperWidth);
        const separator = f.repeat("=");
        const dashedLine = f.repeat("-");

        const items = [
          { name: "Coffee", qty: 1, price: 3.5 },
          { name: "Donut", qty: 2, price: 4.0 },
          { name: "Sandwich", qty: 1, price: 6.5 },
        ];

        let lines = [];
        lines.push(f.center("LAKASIR POS"));
        lines.push(separator);
        lines.push(f.table2("Date:", new Date().toLocaleString()));
        lines.push("");
        lines.push(f.center("ITEMS"));
        lines.push(dashedLine);
        lines.push(f.table3("QTY", "ITEM", "PRICE"));

        let subtotal = 0;
        items.forEach((item) => {
          const total = item.qty * item.price;
          subtotal += total;
          lines.push(f.table3(item.qty, item.name, `$${total.toFixed(2)}`));
        });

        const tax = subtotal * 0.1;
        const total = subtotal + tax;

        lines.push(dashedLine);
        lines.push(f.table2("Subtotal:", `$${subtotal.toFixed(2)}`));
        lines.push(f.table2("Tax (10%):", `$${tax.toFixed(2)}`));
        lines.push(dashedLine);
        lines.push(f.table2("TOTAL:", `$${total.toFixed(2)}`));
        lines.push(separator);
        lines.push(f.center("Thank you for visiting!"));
        lines.push(separator);

        const receiptData = { text: separator, items: lines };

        const response = await fetch(`${API_URL}/print`, {
          method: "POST",
          headers: { "Content-Type": "application/json" },
          body: JSON.stringify(receiptData),
        });

        const data = await response.json();
        if (response.ok) {
          showResponse("print-receipt-response", data);
        } else {
          showResponse("print-receipt-response", data, true);
        }
      } catch (error) {
        showResponse("print-receipt-response", `Error: ${error.message}`, true);
      }
    }


    async function printCustomItems() {
      try {
        const text = document.getElementById('custom-items').value;
        const items = text.split('\n').filter(line => line.trim());

        const response = await fetch(`${API_URL}/print`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({ items })
        });
        const data = await response.json();

        if (response.ok) {
          showResponse('print-custom-response', data);
        } else {
          showResponse('print-custom-response', data, true);
        }
      } catch (error) {
        showResponse('print-custom-response', `Error: ${error.message}`, true);
      }
    }

    async function printImageUrl() {
      try {
        const imageUrl = document.getElementById('image-url').value;
        if (!imageUrl) {
          showResponse('print-image-url-response', 'Please enter an image URL', true);
          return;
        }

        const response = await fetch(`${API_URL}/print`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify({
            text: "Image from URL:",
            imageUrl
          })
        });
        const data = await response.json();

        if (response.ok) {
          showResponse('print-image-url-response', data);
        } else {
          showResponse('print-image-url-response', data, true);
        }
      } catch (error) {
        showResponse('print-image-url-response', `Error: ${error.message}`, true);
      }
    }

    async function printImageFile() {
      try {
        const fileInput = document.getElementById('image-file');
        const file = fileInput.files[0];

        if (!file) {
          showResponse('print-image-file-response', 'Please select an image file', true);
          return;
        }

        const reader = new FileReader();
        reader.onload = async function(e) {
          try {
            const base64Image = e.target.result.split(',')[1];

            const response = await fetch(`${API_URL}/print`, {
              method: 'POST',
              headers: { 'Content-Type': 'application/json' },
              body: JSON.stringify({
                text: `Image from file: ${file.name}`,
                image: base64Image
              })
            });
            const data = await response.json();

            if (response.ok) {
              showResponse('print-image-file-response', data);
            } else {
              showResponse('print-image-file-response', data, true);
            }
          } catch (error) {
            showResponse('print-image-file-response', `Error: ${error.message}`, true);
          }
        };

        reader.readAsDataURL(file);
      } catch (error) {
        showResponse('print-image-file-response', `Error: ${error.message}`, true);
      }
    }

    async function printRawJSON() {
      try {
        const jsonText = document.getElementById('raw-json').value;
        const jsonData = JSON.parse(jsonText);

        const response = await fetch(`${API_URL}/print`, {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify(jsonData)
        });
        const data = await response.json();

        if (response.ok) {
          showResponse('print-json-response', data);
        } else {
          showResponse('print-json-response', data, true);
        }
      } catch (error) {
        showResponse('print-json-response', `Error: ${error.message}`, true);
      }
    }
  </script>
</body>
</html>