import hashlib
import time
import json
from typing import Dict, Any

from oasyce_plugin.models import EngineResult, AssetMetadata

class TEEComputeEngine:
    """
    Mock for Layer 3: Trusted Execution Environment (TEE) + zk-PoE.
    Represents the secure hardware enclave where data and AI models meet.
    Data is decrypted in memory, computed upon, and instantly shredded (Memory Shredding).
    """

    @staticmethod
    def execute_blind_compute(asset: AssetMetadata, ai_prompt: str) -> EngineResult:
        print(f"[TEE Enclave] Securely loaded Asset: {asset.asset_id} into memory.")
        print(f"[TEE Enclave] Loading AI compute logic: '{ai_prompt}'")
        
        # Simulate heavy private computation
        time.sleep(1.5)
        
        # Mock result of computation
        compute_result = {
            "insight": f"Extracted critical knowledge from {asset.filename} regarding '{ai_prompt}'",
            "compute_time_ms": 1502
        }

        # zk-PoE (Zero-Knowledge Proof of Execution) generation
        poe_payload = f"{asset.asset_id}:{ai_prompt}:{time.time()}".encode('utf-8')
        zk_proof = f"zkPoE_0x{hashlib.sha3_256(poe_payload).hexdigest()}"
        
        print(f"[TEE Enclave] Computation finished. Initiating memory physical shredding for {asset.asset_id}...")
        
        return EngineResult(success=True, data={
            "result": compute_result,
            "zk_proof": zk_proof,
            "attestation": "Oasyce_Intel_SGX_Node_Verified"
        })
