"""
Python Binary Sender Test
Tests the smartsend function with binary/image/audio/video/table payloads
"""

import asyncio
import sys
import os
import base64

# Add parent directory to path
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from natbridge import smartsend, DEFAULT_BROKER_URL, DEFAULT_FILESERVER_URL

TEST_SUBJECT = '/test/binary'
TEST_BROKER_URL = os.environ.get('NATS_URL', 'nats://localhost:4222')
TEST_FILESERVER_URL = os.environ.get('FILESERVER_URL', 'http://localhost:8080')


async def run_test():
    print('=== Python Binary Sender Test ===\n')
    
    correlation_id = 'py-binary-test-' + str(asyncio.get_event_loop().time() * 1000000)
    print(f'Correlation ID: {correlation_id}')
    print(f'Subject: {TEST_SUBJECT}')
    print(f'Broker URL: {TEST_BROKER_URL}\n')
    
    # Test data - binary data for different types
    image_data = bytes([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])  # PNG header
    audio_data = bytes([0x46, 0x4C, 0x41, 0x43, 0x00, 0x00, 0x00, 0x00])  # FLAC header
    video_data = bytes([0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70])  # MP4 header
    generic_binary = bytes([0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE, 0xBA, 0xBE])
    
    # Test table data
    try:
        import pandas as pd
        table_data = pd.DataFrame({
            'id': [1, 2, 3, 4, 5],
            'name': ['Alice', 'Bob', 'Charlie', 'David', 'Eve'],
            'value': [10.5, 20.3, 30.1, 40.9, 50.7]
        })
        table_available = True
    except ImportError:
        table_available = False
        table_data = None
    
    test_data = [
        ('image', image_data, 'image'),
        ('audio', audio_data, 'audio'),
        ('video', video_data, 'video'),
        ('binary', generic_binary, 'binary')
    ]
    
    if table_available:
        test_data.append(('table', table_data, 'table'))
    
    try:
        # Send the message
        print('Sending binary payloads...')
        env, env_json_str = await smartsend(
            TEST_SUBJECT,
            test_data,
            broker_url=TEST_BROKER_URL,
            fileserver_url=TEST_FILESERVER_URL,
            correlation_id=correlation_id,
            msg_purpose='test',
            sender_name='py-binary-test',
            is_publish=False
        )
        
        print('\n=== Envelope Created ===')
        print(f'Correlation ID: {env["correlation_id"]}')
        print(f'Message ID: {env["msg_id"]}')
        print(f'Timestamp: {env["timestamp"]}')
        print(f'Subject: {env["send_to"]}')
        print(f'Purpose: {env["msg_purpose"]}')
        print(f'Sender: {env["sender_name"]}')
        print(f'Payloads: {len(env["payloads"])}\n')
        
        # Validate envelope structure
        print('=== Validation ===')
        passed = True
        
        expected_count = 5 if table_available else 4
        if len(env['payloads']) != expected_count:
            print(f'❌ Expected {expected_count} payloads, got {len(env["payloads"])}')
            passed = False
        else:
            print('✅ Correct number of payloads')
        
        # Test each payload
        expected_datanames = ['image', 'audio', 'video', 'binary']
        expected_types = ['image', 'audio', 'video', 'binary']
        expected_data = [image_data, audio_data, video_data, generic_binary]
        
        if table_available:
            expected_datanames.append('table')
            expected_types.append('table')
        
        for i in range(len(env['payloads'])):
            payload = env['payloads'][i]
            
            if payload['dataname'] != expected_datanames[i]:
                print(f"❌ Payload {i + 1}: Expected dataname '{expected_datanames[i]}', got '{payload['dataname']}'")
                passed = False
            else:
                print(f'✅ Payload {i + 1}: Correct dataname')
            
            if payload['payload_type'] != expected_types[i]:
                print(f"❌ Payload {i + 1}: Expected type '{expected_types[i]}', got '{payload['payload_type']}'")
                passed = False
            else:
                print(f'✅ Payload {i + 1}: Correct type')
            
            if payload['transport'] != 'direct':
                print(f"❌ Payload {i + 1}: Expected transport 'direct', got '{payload['transport']}'")
                passed = False
            else:
                print(f'✅ Payload {i + 1}: Correct transport')
            
            if payload['encoding'] != 'base64':
                print(f"❌ Payload {i + 1}: Expected encoding 'base64', got '{payload['encoding']}'")
                passed = False
            else:
                print(f'✅ Payload {i + 1}: Correct encoding')
            
            # Decode and verify the data
            decoded_data = base64.b64decode(payload['data'])
            
            if i < len(expected_data):
                original_data = expected_data[i]
                if decoded_data != original_data:
                    print(f'❌ Payload {i + 1}: Data integrity mismatch')
                    passed = False
                else:
                    print(f'✅ Payload {i + 1}: Data integrity verified')
            else:
                # Table payload - just verify it's present
                print(f'✅ Payload {i + 1}: Table data present (size: {payload["size"]} bytes)')
            
            print(f'   Size: {payload["size"]} bytes\n')
        
        # Test with larger binary data
        print('=== Large Binary Data Test ===')
        large_data = bytes([0xFF] * 10000)  # 10KB of binary data
        large_test_data = [
            ('large_binary', large_data, 'binary')
        ]
        
        large_env, _ = await smartsend(
            TEST_SUBJECT,
            large_test_data,
            broker_url=TEST_BROKER_URL,
            fileserver_url=TEST_FILESERVER_URL,
            correlation_id='large-' + correlation_id,
            is_publish=False
        )
        
        if len(large_env['payloads']) == 1 and large_env['payloads'][0]['size'] == 10000:
            print('✅ Large binary data handled correctly')
        else:
            print('❌ Large binary data handling failed')
            passed = False
        
        # Final result
        print('\n=== Test Result ===')
        if passed:
            print('✅ ALL TESTS PASSED')
            sys.exit(0)
        else:
            print('❌ SOME TESTS FAILED')
            sys.exit(1)
            
    except Exception as e:
        print(f'❌ Test failed with error: {e}')
        import traceback
        traceback.print_exc()
        sys.exit(1)


if __name__ == '__main__':
    asyncio.run(run_test())