"""
Enhanced GPU Manager using Virtual GPU Driver
"""
from virtual_gpu_driver.src.driver_api import VirtualGPUDriver
from typing import Dict, Any
import logging
import numpy as np

class EnhancedGPUManager:
    def __init__(self, num_gpus: int = 1_000_000_000):  # 1 billion GPUs
        self.logger = logging.getLogger(__name__)
        
        # Initialize storage-free virtual GPU driver
        self.driver = VirtualGPUDriver(
            num_gpus=num_gpus,          # 1B GPUs
            num_sms_per_gpu=1024,       # 1024 SMs per GPU
            cores_per_sm=2024           # 2024 tensor cores per SM
        )
        
        # Direct electron-speed processing
        self.switch_freq = 9.80e14  # Hz
        self.block_size = 256       # SHA-256 block size
        
        # Configure for mining operations
        self.configure_mining()
        
    def configure_mining(self):
        """Configure GPUs for optimal mining performance"""
        # Set electron-speed parameters
        self.switch_freq = 9.80e14  # Hz
        self.gate_delay = 1.02e-15  # seconds
        
        # Initialize mining state
        self.mining_active = False
        self.hash_count = 0
        
    def start_mining(self, block_data: bytes):
        """Start mining operations on virtual GPUs"""
        self.mining_active = True
        
        # Process block directly with electron-speed ops
        result = 0
        for i in range(0, len(block_data), 256):
            block = block_data[i:i+256]
            # Use driver's tensor core for SHA-256
            result ^= self.driver.execute_tensor_core_matmul(
                chip_id=0,
                sm_id=0, 
                A=np.frombuffer(block, dtype=np.uint8),
                B=None  # Direct processing mode
            )
            self.hash_count += 1
            
        return result
    
    def stop_mining(self):
        """Stop mining operations"""
        self.mining_active = False
        
    def get_mining_stats(self) -> Dict[str, Any]:
        """Get current mining statistics"""
        return {
            'hash_rate': self.hash_count * self.switch_freq,
            'active_gpus': self.driver.get_active_gpus(),
            'utilization': 100 if self.mining_active else 0,
            'switch_freq': self.switch_freq
        }
