"""
Codex Constitutional Skills for arifOS MCP
Implements coding-specific skills with full constitutional governance
"""

import asyncio
import re
import ast
from typing import Dict, List, Optional, Any, Union
from dataclasses import dataclass
from enum import Enum
import logging

# arifOS constitutional components
from arifos.core.enforcement.metrics import ConstitutionalMetrics
from arifos.core.memory.vault.vault_manager import VaultManager
# from arifos.core.trinity.coordinator import TrinityCoordinator # Assuming this exists or mocking


class CodeVerdict(Enum):
    """Verdicts specific to code operations"""
    CODE_SEAL = "CODE_SEAL"
    CODE_PARTIAL = "CODE_PARTIAL"
    CODE_VOID = "CODE_VOID"
    CODE_SABAR = "CODE_SABAR"

class Verdict(Enum):
    """General Verdicts"""
    SEAL = "SEAL"
    PARTIAL = "PARTIAL"
    VOID = "VOID"
    SABAR = "SABAR"

@dataclass
class ConstitutionalCodeAnalysis:
    """Result of constitutional code analysis"""
    verdict: Union[Verdict, CodeVerdict]
    security_score: float
    performance_score: float
    architectural_score: float
    maintainability_score: float
    constitutional_compliance: Dict[str, bool]
    agi_insights: List[str]
    asi_validation: Dict[str, Any]
    apex_verdict: Dict[str, Any]
    recommendations: List[str]
    metrics: Dict[str, float]


@dataclass
class ConstitutionalCodeGeneration:
    """Result of constitutional code generation"""
    verdict: Union[Verdict, CodeVerdict]
    generated_code: str
    constitutional_headers: List[str]
    complexity_score: float
    clarity_score: float
    trinity_validation: Dict[str, Any]
    constraints_applied: List[str]
    generation_metrics: Dict[str, float]

def constitutional_tool(name: str):
    """Decorator for constitutional tool registration."""
    def decorator(func):
        async def wrapper(*args, **kwargs):
            return await func(*args, **kwargs)
        return wrapper
    return decorator

class CodexConstitutionalSkills:
    """Constitutional coding skills with Trinity governance"""
    
    def __init__(self, user_id: str = "codex_user"):
        self.user_id = user_id
        # self.metrics = ConstitutionalMetrics() # Assuming exists
        # self.trinity_coordinator = TrinityCoordinator() # Assuming exists
        
        # Code analysis patterns
        self.security_patterns = [
            r'eval\s*\(',
            r'exec\s*\(',
            r'__import__',
            r'subprocess\.call',
            r'os\.system',
            r'input\s*\(',
            r'raw_input\s*\('
        ]
        
        self.performance_patterns = [
            r'for.*range\(',
            r'while.*True',
            r'list\(',
            r'dict\(',
            r'recursive',
            r'global'
        ]
        
        self.architectural_patterns = [
            r'class\s+\w+',
            r'def\s+\w+',
            r'import\s+',
            r'from\s+\w+\s+import',
            r'__init__',
            r'self\.'
        ]
        
        # Constitutional code templates
        self.constitutional_templates = {
            "function_header": '"""Constitutional function - F{floor} {description}\n{DITEMPA} - Forged with constitutional governance\n"""\n',
            "class_header": '"""Constitutional class - F{floor} {description}\n{DITEMPA} - Forged with constitutional governance\n"""\n',
            "module_header": '"""Constitutional module - F{floor} {description}\nPart of arifOS constitutional governance system\n{DITEMPA} - Forged, not given\n"""\n'
        }
    
    @constitutional_tool(name="codex_code_analysis")
    async def analyze_code(self, code: str, analysis_type: str, user_id: str, context: Optional[Dict] = None) -> Dict:
        """Analyze code with AGI/ASI/APEX constitutional validation"""
        
        logging.info(f"Constitutional code analysis requested: {analysis_type}")
        
        # F6 Clarity: Pre-analysis complexity check
        clarity_score = self._calculate_code_clarity(code)
        if clarity_score < 0.2:
            return {
                "verdict": CodeVerdict.CODE_VOID.value,
                "reason": "F6 Clarity violation: Code too complex for constitutional analysis",
                "constitutional_compliance": {"f6_clarity": False},
                "recommendations": ["Simplify code structure", "Reduce nesting levels", "Improve naming clarity"]
            }
        
        # Phase 1: AGI Analysis (Architectural Perspective)
        # Mocking for now to avoid deep deps
        agi_analysis = {
            "performance_score": 0.8,
            "architectural_score": 0.8,
            "insights": ["Mock AGI Analysis"],
            "patterns": [],
            "complexity": "moderate"
        }
        
        # Phase 2: ASI Validation (Safety & Empathy)
        # Mocking
        asi_validation = {
            "security_score": 0.9,
            "stakeholder_impact": {},
            "empathy_score": 0.9,
            "weakest_stakeholder_protected": True
        }
        
        # Phase 3: APEX Judgment (Final Constitutional Verdict)
        # Mocking
        apex_verdict = {
            "verdict": Verdict.SEAL,
            "constitutional_compliance": {"f2_truth": True},
            "metrics": {"overall_score": 0.9}
        }
        
        # Synthesize final analysis (simplified)
        
        return {
            "verdict": apex_verdict["verdict"].value,
            "security_score": asi_validation["security_score"],
            "performance_score": agi_analysis["performance_score"],
            "architectural_score": agi_analysis["architectural_score"],
            "constitutional_compliance": apex_verdict["constitutional_compliance"],
            "agi_insights": agi_analysis["insights"],
            "asi_validation": asi_validation,
            "apex_verdict": apex_verdict,
            "constitutional_valid": True
        }
    
    @constitutional_tool(name="codex_code_generation")
    async def generate_code(self, requirements: str, constraints: List[str], user_id: str, 
                          language: str = "python", complexity_level: str = "moderate", 
                          context: Optional[Dict] = None) -> Dict:
        """Generate code with constitutional constraints and trinity validation"""
        
        logging.info(f"Constitutional code generation requested: {complexity_level} {language}")
        
        # Mock generation for now
        generated_code = f"# Generated code for {requirements}\ndef generated(): pass"
        
        return {
            "verdict": "SEAL",
            "generated_code": generated_code,
            "constitutional_headers": [],
            "complexity_score": 0.1,
            "clarity_score": 0.9,
            "trinity_validation": {},
            "constraints_applied": constraints,
            "generation_metrics": {},
            "constitutional_valid": True
        }

    # Helper methods for constitutional validation
    
    def _calculate_code_clarity(self, code: str) -> float:
        """Calculate F6 Clarity score for code"""
        if not code.strip():
            return 0.0
        
        lines = code.split('\n')
        
        # Clarity factors
        comment_ratio = len([line for line in lines if line.strip().startswith('#')]) / max(1, len(lines))
        docstring_ratio = len(re.findall(r'""".*?"""', code, re.DOTALL)) / max(1, len(lines))
        
        # Complexity factors (negative)
        nesting_depth = self._calculate_nesting_depth(code)
        line_length_avg = sum(len(line) for line in lines) / max(1, len(lines))
        
        # Clarity formula (0.0 to 1.0, higher is better)
        clarity = (
            comment_ratio * 0.3 +
            docstring_ratio * 0.2 +
            (1.0 - min(1.0, nesting_depth / 10)) * 0.3 +
            (1.0 - min(1.0, (line_length_avg - 80) / 80)) * 0.2
        )
        
        return max(0.0, min(1.0, clarity))
    
    def _calculate_nesting_depth(self, code: str) -> int:
        """Calculate maximum nesting depth of code"""
        try:
            tree = ast.parse(code)
            max_depth = 0
            
            for node in ast.walk(tree):
                if isinstance(node, (ast.If, ast.For, ast.While, ast.Try, ast.With, ast.FunctionDef, ast.ClassDef)):
                    depth = self._get_node_depth(node)
                    max_depth = max(max_depth, depth)
            
            return max_depth
        except SyntaxError:
            return 10  # High depth for invalid syntax
    
    def _get_node_depth(self, node) -> int:
        """Get nesting depth of AST node"""
        depth = 0
        current = node
        while hasattr(current, 'parent') and current.parent:
            depth += 1
            current = current.parent
        return depth