/**
 * JavaScript Dictionary Sender Test
 * Tests the smartsend function with dictionary payloads
 */

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

const TEST_SUBJECT = '/test/dictionary';
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 Dictionary Sender Test ===\n');
    
    const correlationId = NATSBridge.uuidv4();
    console.log(`Correlation ID: ${correlationId}`);
    console.log(`Subject: ${TEST_SUBJECT}`);
    console.log(`Broker URL: ${TEST_BROKER_URL}\n`);
    
    // Test data - various dictionary structures
    const testData = [
        ['simple_dict', { key1: 'value1', key2: 'value2' }, 'dictionary'],
        ['nested_dict', { outer: { inner: 'value', number: 42 } }, 'dictionary'],
        ['array_dict', { items: [1, 2, 3, 'four', 'five'] }, 'dictionary'],
        ['mixed_dict', { string: 'text', number: 123, boolean: true, null_val: null }, 'dictionary']
    ];
    
    try {
        // Send the message
        console.log('Sending dictionary 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-dict-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 = ['simple_dict', 'nested_dict', 'array_dict', 'mixed_dict'];
        const expectedTypes = ['dictionary', 'dictionary', 'dictionary', 'dictionary'];
        
        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 = JSON.parse(Buffer.from(payload.data, 'base64').toString('utf8'));
            const originalData = testData[i][1];
            
            const originalJson = JSON.stringify(originalData);
            const decodedJson = JSON.stringify(decodedData);
            
            if (originalJson !== decodedJson) {
                console.log(`❌ Payload ${i + 1}: Data integrity mismatch`);
                console.log(`   Expected: ${originalJson}`);
                console.log(`   Got: ${decodedJson}`);
                passed = false;
            } else {
                console.log(`✅ Payload ${i + 1}: Data integrity verified`);
            }
            
            console.log(`   Size: ${payload.size} bytes\n`);
        }
        
        // Test round-trip serialization
        console.log('=== Round-trip Serialization Test ===');
        const roundTripTestData = [
            ['roundtrip', { test: 'data', numbers: [1, 2, 3], nested: { a: 1, b: 2 } }, 'dictionary']
        ];
        
        const [rtEnv, rtEnvJsonStr] = await NATSBridge.smartsend(
            TEST_SUBJECT,
            roundTripTestData,
            {
                broker_url: TEST_BROKER_URL,
                fileserver_url: TEST_FILESERVER_URL,
                correlation_id: 'roundtrip-' + correlationId,
                is_publish: false
            }
        );
        
        const rtPayload = rtEnv.payloads[0];
        const rtDecoded = JSON.parse(Buffer.from(rtPayload.data, 'base64').toString('utf8'));
        
        if (JSON.stringify(rtDecoded) === JSON.stringify(roundTripTestData[0][1])) {
            console.log('✅ Round-trip serialization successful');
        } else {
            console.log('❌ Round-trip serialization failed');
            passed = false;
        }
        
        // Test JSON string output
        console.log('\n=== JSON String Output Test ===');
        try {
            const parsed = JSON.parse(envJsonStr);
            if (parsed.correlation_id === env.correlation_id && 
                parsed.payloads.length === env.payloads.length) {
                console.log('✅ JSON string is valid and matches envelope');
            } else {
                console.log('❌ JSON string does not match envelope');
                passed = false;
            }
        } catch (e) {
            console.log('❌ JSON string is invalid:', e.message);
            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();