ShelLabelPrinting_InventoryCounte/bluetooth-debug.html at main · SyedAthar25/ShelLabelPrinting_InventoryCounte · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Bluetooth Debug Test</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f5f5f5;
        }
        .container {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        .status {
            padding: 15px;
            margin: 15px 0;
            border-radius: 5px;
            font-weight: bold;
        }
        .success { background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
        .error { background-color: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
        .info { background-color: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }
        .warning { background-color: #fff3cd; color: #856404; border: 1px solid #ffeaa7; }

        button {
            padding: 12px 24px;
            margin: 8px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 14px;
            font-weight: bold;
        }
        .btn-primary { background-color: #007bff; color: white; }
        .btn-secondary { background-color: #6c757d; color: white; }
        .btn-success { background-color: #28a745; color: white; }
        .btn-danger { background-color: #dc3545; color: white; }
        .btn-warning { background-color: #ffc107; color: #212529; }

        .log {
            background-color: #f8f9fa;
            border: 1px solid #dee2e6;
            padding: 15px;
            margin: 15px 0;
            border-radius: 5px;
            max-height: 300px;
            overflow-y: auto;
            font-family: 'Courier New', monospace;
            font-size: 12px;
            line-height: 1.4;
        }

        .device-list {
            background-color: #e9ecef;
            border: 1px solid #dee2e6;
            padding: 10px;
            margin: 10px 0;
            border-radius: 5px;
        }

        .device-item {
            background: white;
            padding: 8px;
            margin: 5px 0;
            border-radius: 3px;
            border-left: 4px solid #007bff;
        }

        .section {
            margin: 20px 0;
            padding: 15px;
            border: 1px solid #dee2e6;
            border-radius: 5px;
            background: #fafafa;
        }

        h2 {
            color: #495057;
            border-bottom: 2px solid #007bff;
            padding-bottom: 5px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>🔵 Bluetooth Debug Test</h1>
        <p>This page helps debug Bluetooth connectivity issues with your Gprinter GP-M322.</p>

        <div id="status" class="status info">Initializing...</div>

        <div class="section">
            <h2>🔧 System Check</h2>
            <button class="btn-primary" onclick="checkSystem()">Check System</button>
            <button class="btn-warning" onclick="clearLog()">Clear Log</button>
            <div id="systemInfo"></div>
        </div>

        <div class="section">
            <h2>📱 Device Discovery</h2>
            <button class="btn-primary" onclick="discoverDevices()">Discover Devices</button>
            <button class="btn-secondary" onclick="discoverAllDevices()">Discover All Devices</button>
            <div id="deviceList" class="device-list" style="display: none;">
                <h3>Found Devices:</h3>
                <div id="devices"></div>
            </div>
        </div>

        <div class="section">
            <h2>🔗 Connection Test</h2>
            <button class="btn-success" onclick="testConnection()">Test Connection</button>
            <button class="btn-danger" onclick="disconnect()">Disconnect</button>
            <button class="btn-warning" onclick="testPrint()">Test Print</button>
        </div>

        <div class="section">
            <h2>📋 Debug Log</h2>
            <div class="log" id="log"></div>
        </div>

        <div class="section">
            <h2>💡 Troubleshooting Tips</h2>
            <ul>
                <li><strong>Printer Setup:</strong> Turn ON your Gprinter GP-M322 and ensure it's in pairing mode (blinking LED)</li>
                <li><strong>Browser:</strong> Use Chrome or Edge browser (Web Bluetooth API support required)</li>
                <li><strong>Connection:</strong> Make sure Bluetooth is enabled on your device</li>
                <li><strong>Security:</strong> The page must be served over HTTPS or localhost for Bluetooth to work</li>
                <li><strong>User Gesture:</strong> Bluetooth device selection must be triggered by a direct user click</li>
                <li><strong>Device Names:</strong> Look for devices with names starting with "GP-", "Gprinter", or "GP"</li>
            </ul>
        </div>
    </div>

    <script>
        let bluetoothDevice = null;
        let gattServer = null;
        let writeCharacteristic = null;
        let discoveredDevices = [];

        const log = document.getElementById('log');
        const status = document.getElementById('status');
        const systemInfo = document.getElementById('systemInfo');
        const deviceList = document.getElementById('deviceList');
        const devices = document.getElementById('devices');

        function updateStatus(message, type = 'info') {
            status.textContent = message;
            status.className = `status ${type}`;
            addLog(message);
        }

        function addLog(message) {
            const timestamp = new Date().toLocaleTimeString();
            log.innerHTML += `[${timestamp}] ${message}\n`;
            log.scrollTop = log.scrollHeight;
        }

        function clearLog() {
            log.innerHTML = '';
            updateStatus('Log cleared', 'info');
        }

        function checkSystem() {
            addLog('=== System Check ===');

            // Check Web Bluetooth support
            if (!navigator.bluetooth) {
                updateStatus('❌ Web Bluetooth is NOT supported', 'error');
                addLog('ERROR: navigator.bluetooth is undefined');
                systemInfo.innerHTML = '<div class="error">Web Bluetooth API not available. Use Chrome or Edge browser.</div>';
                return;
            }

            updateStatus('✅ Web Bluetooth is supported', 'success');
            addLog('SUCCESS: navigator.bluetooth is available');

            // Check HTTPS/localhost
            const isSecure = window.location.protocol === 'https:' || window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1';
            if (isSecure) {
                addLog('SUCCESS: Page is served over secure context (HTTPS/localhost)');
            } else {
                addLog('WARNING: Page is not served over secure context. Bluetooth may not work.');
            }

            // Check user agent
            const userAgent = navigator.userAgent;
            addLog(`User Agent: ${userAgent}`);

            if (userAgent.includes('Chrome') || userAgent.includes('Edge')) {
                addLog('SUCCESS: Using supported browser (Chrome/Edge)');
            } else {
                addLog('WARNING: Browser may not support Web Bluetooth');
            }

            systemInfo.innerHTML = `
                <div class="success">
                    <strong>✅ System Check Passed</strong><br>
                    Web Bluetooth: Available<br>
                    Secure Context: ${isSecure ? 'Yes' : 'No'}<br>
                    Browser: ${userAgent.includes('Chrome') ? 'Chrome' : userAgent.includes('Edge') ? 'Edge' : 'Other'}
                </div>
            `;
        }

        async function discoverDevices() {
            try {
                updateStatus('🔍 Searching for Gprinter devices...', 'info');
                addLog('Starting device discovery with name filters...');

                bluetoothDevice = await navigator.bluetooth.requestDevice({
                    filters: [
                        { namePrefix: 'GP-' },
                        { namePrefix: 'Gprinter' },
                        { namePrefix: 'GP' }
                    ],
                    optionalServices: [0xffe0, 0xff00, 0x1800]
                });

                addLog(`✅ Device found: ${bluetoothDevice.name || 'Unknown'} (${bluetoothDevice.id})`);
                updateStatus(`Found device: ${bluetoothDevice.name || 'Unknown'}`, 'success');

                discoveredDevices = [bluetoothDevice];
                displayDevices();

            } catch (error) {
                const errorMessage = error.message || 'Unknown error';
                updateStatus(`❌ Device discovery failed: ${errorMessage}`, 'error');
                addLog(`ERROR: ${errorMessage}`);

                if (error.name === 'NotFoundError') {
                    addLog('No devices found matching the filters. Try "Discover All Devices" instead.');
                }
            }
        }

        async function discoverAllDevices() {
            try {
                updateStatus('🔍 Searching for all Bluetooth devices...', 'info');
                addLog('Starting broad device discovery...');

                bluetoothDevice = await navigator.bluetooth.requestDevice({
                    acceptAllDevices: true,
                    optionalServices: [0xffe0, 0xff00, 0x1800]
                });

                addLog(`✅ Device found: ${bluetoothDevice.name || 'Unknown'} (${bluetoothDevice.id})`);
                updateStatus(`Found device: ${bluetoothDevice.name || 'Unknown'}`, 'success');

                discoveredDevices = [bluetoothDevice];
                displayDevices();

            } catch (error) {
                const errorMessage = error.message || 'Unknown error';
                updateStatus(`❌ Device discovery failed: ${errorMessage}`, 'error');
                addLog(`ERROR: ${errorMessage}`);
            }
        }

        function displayDevices() {
            if (discoveredDevices.length === 0) {
                deviceList.style.display = 'none';
                return;
            }

            deviceList.style.display = 'block';
            devices.innerHTML = '';

            discoveredDevices.forEach(device => {
                const deviceDiv = document.createElement('div');
                deviceDiv.className = 'device-item';
                deviceDiv.innerHTML = `
                    <strong>${device.name || 'Unknown Device'}</strong><br>
                    ID: ${device.id}<br>
                    Connected: ${device.gatt?.connected ? 'Yes' : 'No'}
                `;
                devices.appendChild(deviceDiv);
            });
        }

        async function testConnection() {
            if (!bluetoothDevice) {
                updateStatus('❌ No device selected. Discover devices first.', 'error');
                return;
            }

            try {
                updateStatus('🔗 Connecting to device...', 'info');
                addLog(`Connecting to ${bluetoothDevice.name}...`);

                if (!bluetoothDevice.gatt) {
                    throw new Error('Selected device does not support GATT');
                }

                gattServer = await bluetoothDevice.gatt.connect();
                addLog('✅ GATT server connected');

                // Try to find a compatible service
                const serviceUUIDs = [0xffe0, 0xff00, 0x1800];
                let service = null;

                for (const serviceUUID of serviceUUIDs) {
                    try {
                        service = await gattServer.getPrimaryService(serviceUUID);
                        addLog(`✅ Found service: 0x${serviceUUID.toString(16)}`);
                        break;
                    } catch (error) {
                        addLog(`❌ Service 0x${serviceUUID.toString(16)} not found`);
                    }
                }

                if (!service) {
                    throw new Error('No compatible printer service found');
                }

                // Try to find a compatible characteristic
                const charUUIDs = [0xffe1, 0xff01];

                for (const charUUID of charUUIDs) {
                    try {
                        writeCharacteristic = await service.getCharacteristic(charUUID);
                        addLog(`✅ Found characteristic: 0x${charUUID.toString(16)}`);
                        break;
                    } catch (error) {
                        addLog(`❌ Characteristic 0x${charUUID.toString(16)} not found`);
                    }
                }

                if (!writeCharacteristic) {
                    throw new Error('No compatible write characteristic found');
                }

                updateStatus(`✅ Connected to ${bluetoothDevice.name || 'Unknown'}`, 'success');
                addLog('🎉 Connection successful!');

            } catch (error) {
                const errorMessage = error.message || 'Unknown error';
                updateStatus(`❌ Connection failed: ${errorMessage}`, 'error');
                addLog(`ERROR: ${errorMessage}`);
            }
        }

        async function disconnect() {
            try {
                if (gattServer && gattServer.connected) {
                    gattServer.disconnect();
                }
                bluetoothDevice = null;
                gattServer = null;
                writeCharacteristic = null;
                updateStatus('🔌 Disconnected', 'info');
                addLog('Disconnected from printer');
                deviceList.style.display = 'none';
            } catch (error) {
                addLog(`ERROR during disconnect: ${error.message}`);
            }
        }

        async function testPrint() {
            if (!writeCharacteristic) {
                updateStatus('❌ Not connected to printer', 'error');
                return;
            }

            try {
                updateStatus('🖨️ Sending test print...', 'info');
                addLog('Sending test print...');

                // Initialize printer
                await writeCharacteristic.writeValueWithoutResponse(new Uint8Array([0x1b, 0x40]));
                addLog('✅ Printer initialized');

                // Print test text
                const testText = 'Test Print\nGprinter GP-M322\n' + new Date().toLocaleString() + '\n\n\n';
                const encoder = new TextEncoder();
                await writeCharacteristic.writeValueWithoutResponse(encoder.encode(testText));
                addLog('✅ Test text sent');

                // Feed and cut
                await writeCharacteristic.writeValueWithoutResponse(new Uint8Array([0x1d, 0x56, 0x42, 0x10]));
                addLog('✅ Feed and cut command sent');

                updateStatus('✅ Test print sent successfully', 'success');
                addLog('🎉 Test print completed successfully!');

            } catch (error) {
                const errorMessage = error.message || 'Unknown error';
                updateStatus(`❌ Print failed: ${errorMessage}`, 'error');
                addLog(`ERROR: ${errorMessage}`);
            }
        }

        // Initialize on page load
        window.addEventListener('load', () => {
            updateStatus('Ready to test Bluetooth connection', 'info');
            addLog('Page loaded. Click "Check System" to begin.');
        });
    </script>
</body>
</html>