/**
 * JavaScript Binary Sender Test
 * Tests the smartsend function with binary/image/audio/video payloads
 */

const NATSBridge = require('../src/natsbridge.js');
const crypto = require('crypto');

const TEST_SUBJECT = '/test/binary';
const TEST_BROKER_URL = process.env.NATS_URL || 'nats://localhost:4222';
const TEST_FILESERVER_URL = process.env.FILESERVER_URL || 'http://localhost:8080';

async function runTest() {
    console.log('=== JavaScript Binary Sender Test ===\n');
    
    const correlationId = crypto.randomUUID();
    console.log(`Correlation ID: ${correlationId}`);
    console.log(`Subject: ${TEST_SUBJECT}`);
    console.log(`Broker URL: ${TEST_BROKER_URL}\n`);
    
    // Test data - binary data for different types
    const binaryData = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]); // PNG header
    const audioData = Buffer.from([0x46, 0x4C, 0x41, 0x43, 0x00, 0x00, 0x00, 0x00]); // FLAC header
    const videoData = Buffer.from([0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70]); // MP4 header
    const genericBinary = Buffer.from([0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE, 0xBA, 0xBE]);
    
    const testData = [
        ['image', binaryData, 'image'],
        ['audio', audioData, 'audio'],
        ['video', videoData, 'video'],
        ['binary', genericBinary, 'binary']
    ];
    
    try {
        // Send the message
        console.log('Sending binary payloads...');
        const [env, envJsonStr] = await NATSBridge.smartsend(
            TEST_SUBJECT,
            testData,
            {
                broker_url: TEST_BROKER_URL,
                fileserver_url: TEST_FILESERVER_URL,
                correlation_id: correlationId,
                msg_purpose: 'test',
                sender_name: 'js-binary-test',
                is_publish: false
            }
        );
        
        console.log('\n=== Envelope Created ===');
        console.log(`Correlation ID: ${env.correlation_id}`);
        console.log(`Message ID: ${env.msg_id}`);
        console.log(`Timestamp: ${env.timestamp}`);
        console.log(`Subject: ${env.send_to}`);
        console.log(`Purpose: ${env.msg_purpose}`);
        console.log(`Sender: ${env.sender_name}`);
        console.log(`Payloads: ${env.payloads.length}\n`);
        
        // Validate envelope structure
        console.log('=== Validation ===');
        let passed = true;
        
        if (env.payloads.length !== 4) {
            console.log(`❌ Expected 4 payloads, got ${env.payloads.length}`);
            passed = false;
        } else {
            console.log('✅ Correct number of payloads');
        }
        
        // Test each payload
        const expectedDatanames = ['image', 'audio', 'video', 'binary'];
        const expectedTypes = ['image', 'audio', 'video', 'binary'];
        const expectedData = [binaryData, audioData, videoData, genericBinary];
        
        for (let i = 0; i < env.payloads.length; i++) {
            const payload = env.payloads[i];
            
            if (payload.dataname !== expectedDatanames[i]) {
                console.log(`❌ Payload ${i + 1}: Expected dataname '${expectedDatanames[i]}', got '${payload.dataname}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct dataname`);
            }
            
            if (payload.payload_type !== expectedTypes[i]) {
                console.log(`❌ Payload ${i + 1}: Expected type '${expectedTypes[i]}', got '${payload.payload_type}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct type`);
            }
            
            if (payload.transport !== 'direct') {
                console.log(`❌ Payload ${i + 1}: Expected transport 'direct', got '${payload.transport}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct transport`);
            }
            
            if (payload.encoding !== 'base64') {
                console.log(`❌ Payload ${i + 1}: Expected encoding 'base64', got '${payload.encoding}'`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Correct encoding`);
            }
            
            // Decode and verify the data
            const decodedData = Buffer.from(payload.data, 'base64');
            const originalData = expectedData[i];
            
            if (decodedData.length !== originalData.length) {
                console.log(`❌ Payload ${i + 1}: Length mismatch (${decodedData.length} vs ${originalData.length})`);
                passed = false;
            } else {
                let dataMatch = true;
                for (let j = 0; j < originalData.length; j++) {
                    if (decodedData[j] !== originalData[j]) {
                        dataMatch = false;
                        break;
                    }
                }
                if (dataMatch) {
                    console.log(`✅ Payload ${i + 1}: Data integrity verified`);
                } else {
                    console.log(`❌ Payload ${i + 1}: Data integrity mismatch`);
                    passed = false;
                }
            }
            
            console.log(`   Size: ${payload.size} bytes\n`);
        }
        
        // Test with larger binary data (simulating file upload scenario)
        console.log('=== Large Binary Data Test ===');
        const largeData = Buffer.alloc(10000, 0xFF); // 10KB of binary data
        const largeTestData = [
            ['large_binary', largeData, 'binary']
        ];
        
        const [largeEnv, _] = await NATSBridge.smartsend(
            TEST_SUBJECT,
            largeTestData,
            {
                broker_url: TEST_BROKER_URL,
                fileserver_url: TEST_FILESERVER_URL,
                correlation_id: 'large-' + correlationId,
                is_publish: false
            }
        );
        
        if (largeEnv.payloads.length === 1 && largeEnv.payloads[0].size === 10000) {
            console.log('✅ Large binary data handled correctly');
        } else {
            console.log('❌ Large binary data handling failed');
            passed = false;
        }
        
        // Final result
        console.log('\n=== Test Result ===');
        if (passed) {
            console.log('✅ ALL TESTS PASSED');
            process.exit(0);
        } else {
            console.log('❌ SOME TESTS FAILED');
            process.exit(1);
        }
        
    } catch (error) {
        console.error('❌ Test failed with error:', error.message);
        console.error(error.stack);
        process.exit(1);
    }
}

runTest();