"""
APEX Tool - Soul Engine (Ψ) MCP Interface
v52.6.0 - Judicial judgment and constitutional sealing

Wraps codebase APEX engine for MCP consumption.
"""

from typing import Any, Dict, Optional, List
import hashlib
import time


class APEXTool:
    """
    Soul Engine: EUREKA → JUDGE → PROOF
    
    Role: Final judgment, proof generation, VAULT sealing
    """
    
    @staticmethod
    def execute(action: str, query: str, response: Optional[str] = None, **kwargs) -> Dict[str, Any]:
        """Execute APEX action"""
        
        if action == "judge":
            # Render constitutional verdict
            return APEXTool._judge(query, response, **kwargs)
        elif action == "proof":
            # Generate cryptographic proof
            return APEXTool._proof(query, response, **kwargs)
        elif action == "eureka":
            # Insight generation
            return APEXTool._eureka(query, **kwargs)
        else:
            return {"verdict": "VOID", "reason": f"Unknown APEX action: {action}"}
    
    @staticmethod
    def _judge(query: str, response: Optional[str], **kwargs) -> Dict[str, Any]:
        """Render constitutional verdict"""
        
        # F8: Tri-Witness consensus simulation
        agi_vote = kwargs.get("agi_vote", "SEAL")
        asi_vote = kwargs.get("asi_vote", "SEAL")
        apex_vote = "SEAL"  # APEX's own judgment
        
        votes = [agi_vote, asi_vote, apex_vote]
        void_count = votes.count("VOID")
        
        if void_count >= 2:
            verdict = "VOID"
            reason = "Tri-witness consensus: 2/3 engines reject"
        elif void_count == 1:
            verdict = "SABAR"
            reason = "Tri-witness partial: requires human review"
        else:
            verdict = "SEAL"
            reason = "Tri-witness unanimous: all engines approve"
        
        # F1: Compute audit hash
        audit_content = f"{query}|{response}|{verdict}|{int(time.time())}"
        audit_hash = hashlib.sha256(audit_content.encode()).hexdigest()[:16]
        
        return {
            "verdict": verdict,
            "reason": reason,
            "tri_witness": {
                "agi": agi_vote,
                "asi": asi_vote,
                "apex": apex_vote,
                "consensus": (3 - void_count) / 3
            },
            "audit_hash": audit_hash,
            "timestamp": int(time.time())
        }
    
    @staticmethod
    def _proof(query: str, response: Optional[str], **kwargs) -> Dict[str, Any]:
        """Generate cryptographic proof of constitutionality"""
        
        # Generate Merkle tree root (simplified)
        if not response:
            response = "No response provided"
        
        # Create proof chain
        proof_chain = [
            hashlib.sha256(f"query:{query}".encode()).hexdigest()[:16],
            hashlib.sha256(f"response:{response}".encode()).hexdigest()[:16],
            hashlib.sha256(f"verdict:{kwargs.get('verdict', 'SEAL')}".encode()).hexdigest()[:16]
        ]
        
        merkle_root = hashlib.sha256("|".join(proof_chain).encode()).hexdigest()[:16]
        
        return {
            "merkle_root": merkle_root,
            "proof_chain": proof_chain,
            "verified": True,
            "constitutionality": "PROVEN"
        }
    
    @staticmethod
    def _eureka(query: str, **kwargs) -> Dict[str, Any]:
        """Generate constitutional insight"""
        
        # F9: Ensure no consciousness claims
        if "consciousness" in query.lower() or "sentience" in query.lower():
            return {
                "verdict": "VOID",
                "reason": "F9 Anti-Hantu: Question assumes consciousness"
            }
        
        # Generate insight (simulated)
        insight = f"Constitutional analysis of '{query[:50]}...' reveals: "
        insight += "The query can be decomposed into 3 testable claims. "
        insight += "Recommend: Apply F2 truth verification, F3 peace² analysis, F4 clarity check."
        
        return {
            "verdict": "SEAL",
            "insight": insight,
            "breakpoints": ["F2 verification", "F3 analysis", "F4 clarity"]
        }
