"""
Multi-layer encoder for complete obfuscation
Implements multiple encoding layers to eliminate readable content
"""

import base64
import binascii
import zlib
import secrets


class MultiLayerEncoder:
    """Handles multi-layer encoding for complete obfuscation"""
    
    def __init__(self):
        self.compression_level = 9  # Maximum compression
        
    def apply_all_layers(self, data: bytes) -> str:
        """Apply all encoding layers for maximum obfuscation"""
        # Layer 1: URL-safe base64 encoding
        encoded = base64.urlsafe_b64encode(data)
        
        # Layer 2: Compression for pattern elimination
        encoded = zlib.compress(encoded, self.compression_level)
        
        # Layer 3: Standard base64 encoding
        encoded = base64.b64encode(encoded)
        
        # Layer 4: Hexadecimal encoding
        encoded = binascii.hexlify(encoded)
        
        # Layer 5: Final base64 encoding
        encoded = base64.b64encode(encoded)
        
        return encoded.decode('ascii')
    
    def apply_base64_layer(self, data: bytes) -> bytes:
        """Apply base64 encoding layer"""
        return base64.b64encode(data)
    
    def apply_compression_layer(self, data: bytes) -> bytes:
        """Apply compression layer to eliminate patterns"""
        return zlib.compress(data, self.compression_level)
    
    def apply_hex_layer(self, data: bytes) -> bytes:
        """Apply hexadecimal encoding layer"""
        return binascii.hexlify(data)
    
    def apply_urlsafe_layer(self, data: bytes) -> bytes:
        """Apply URL-safe base64 encoding layer"""
        return base64.urlsafe_b64encode(data)
    
    def add_entropy(self, data: bytes) -> bytes:
        """Add random entropy to data"""
        entropy = secrets.token_bytes(16)
        return entropy + data + entropy
