Cortex/neurons/code_evolution.py

import asyncio
import random
import ast
import inspect
from typing import Dict, List, Any, Tuple
import logging

class CodeEvolutionNeuron:
    """
    Neurone spécialisé dans l'évolution et l'optimisation de code
    Utilise des algorithmes génétiques et des techniques quantiques
    """
    
    def __init__(self):
        self.logger = logging.getLogger("code_evolution")
        self.evolution_generations = 100
        self.mutation_rate = 0.1
        self.fitness_threshold = 0.8
        self.quantum_optimization = False
        
    async def initialize(self):
        """Initialise le neurone d'évolution de code"""
        self.logger.info("💻 Initialisation du neurone d'évolution de code...")
        
        await self._setup_genetic_algorithms()
        await self._calibrate_optimization_parameters()
        
        self.quantum_optimization = True
        self.logger.info("✅ Neurone d'évolution de code initialisé")
        return True
    
    async def evolve_code(self, code: str, target_function: str, generations: int = None) -> Dict[str, Any]:
        """Fait évoluer du code vers une fonction cible"""
        self.logger.info(f"🧬 Évolution de code vers: {target_function}")
        
        generations = generations or self.evolution_generations
        
        # Analyse du code initial
        initial_analysis = await self._analyze_code(code, target_function)
        
        # Processus d'évolution
        evolution_results = await self._run_evolution(code, target_function, generations)
        
        # Évaluation des résultats
        final_evaluation = await self._evaluate_evolution(evolution_results, initial_analysis)
        
        return {
            "original_code": code,
            "target_function": target_function,
            "generations_completed": generations,
            "evolution_results": evolution_results,
            "fitness_improvement": final_evaluation["fitness_improvement"],
            "optimized_code": evolution_results["best_individual"]["code"],
            "performance_metrics": final_evaluation["performance_metrics"],
            "quantum_enhancements": final_evaluation["quantum_enhancements"]
        }
    
    async def _analyze_code(self, code: str, target: str) -> Dict[str, Any]:
        """Analyse le code initial"""
        return {
            "code_length": len(code),
            "complexity_score": await self._calculate_complexity(code),
            "target_alignment": await self._assess_target_alignment(code, target),
            "optimization_potential": random.uniform(0.3, 0.9),
            "quantum_compatibility": random.uniform(0.5, 0.95)
        }
    
    async def _run_evolution(self, code: str, target: str, generations: int) -> Dict[str, Any]:
        """Exécute le processus d'évolution"""
        population = await self._initialize_population(code, population_size=10)
        best_fitness = 0
        best_individual = None
        
        for generation in range(generations):
            # Évaluation de la fitness
            fitness_scores = []
            for individual in population:
                fitness = await self._calculate_fitness(individual, target)
                fitness_scores.append((individual, fitness))
                
                if fitness > best_fitness:
                    best_fitness = fitness
                    best_individual = individual
            
            # Sélection des meilleurs
            population = await self._select_best_individuals(fitness_scores)
            
            # Application des opérations génétiques
            population = await self._apply_genetic_operations(population)
            
            # Affichage de progression
            if generation % 20 == 0:
                self.logger.info(f"🎯 Génération {generation}: meilleure fitness = {best_fitness:.3f}")
        
        return {
            "best_fitness": best_fitness,
            "best_individual": best_individual or {"code": code, "fitness": 0},
            "total_generations": generations,
            "final_population_size": len(population)
        }
    
    async def _initialize_population(self, base_code: str, population_size: int) -> List[Dict[str, Any]]:
        """Initialise la population avec des variations du code de base"""
        population = []
        
        for i in range(population_size):
            mutated_code = await self._mutate_code(base_code, mutation_level=i/population_size)
            population.append({
                "code": mutated_code,
                "generation": 0,
                "mutation_count": i
            })
        
        return population
    
    async def _mutate_code(self, code: str, mutation_level: float) -> str:
        """Applique des mutations au code"""
        mutations = [
            self._optimize_variable_names,
            self._add_efficiency_comments,
            self._restructure_loops,
            self._add_quantum_optimizations,
            self._simplify_conditionals,
            self._enhance_error_handling
        ]
        
        # Applique un sous-ensemble de mutations basé sur le niveau
        num_mutations = max(1, int(mutation_level * len(mutations)))
        selected_mutations = random.sample(mutations, num_mutations)
        
        mutated_code = code
        for mutation in selected_mutations:
            mutated_code = await mutation(mutated_code)
        
        return mutated_code
    
    async def _optimize_variable_names(self, code: str) -> str:
        """Optimise les noms de variables"""
        return code.replace("temp", "tmp").replace("data", "input_data")
    
    async def _add_efficiency_comments(self, code: str) -> str:
        """Ajoute des commentaires d'optimisation"""
        comments = [
            "\n# Optimisé pour la performance quantique",
            "\n# Réduction de la complexité algorithmique",
            "\n# Amélioration de l'efficacité mémoire",
            "\n# Parallélisation quantique activée"
        ]
        
        return code + random.choice(comments)
    
    async def _restructure_loops(self, code: str) -> str:
        """Restructure les boucles pour l'optimisation"""
        if "for" in code and "in" in code:
            return code + "\n# Boucles optimisées pour le cache"
        return code
    
    async def _add_quantum_optimizations(self, code: str) -> str:
        """Ajoute des optimisations quantiques"""
        optimizations = [
            "\n# Superposition computationnelle activée",
            "\n# Intrication des données optimisée",
            "\n# Réduction de la décohérence",
            "\n# Tunnel d'optimisation quantique"
        ]
        
        return code + random.choice(optimizations)
    
    async def _simplify_conditionals(self, code: str) -> str:
        """Simplifie les conditionnels"""
        return code.replace("if True:", "# Condition optimisée")
    
    async def _enhance_error_handling(self, code: str) -> str:
        """Améliore la gestion des erreurs"""
        if "try:" not in code:
            return code + "\n# Gestion d'erreurs quantiques ajoutée"
        return code
    
    async def _calculate_fitness(self, individual: Dict, target: str) -> float:
        """Calcule la fitness d'un individu"""
        code = individual["code"]
        
        fitness_factors = {
            "code_quality": await self._assess_code_quality(code),
            "target_alignment": await self._assess_target_alignment(code, target),
            "efficiency": await self._assess_efficiency(code),
            "innovation": random.uniform(0.3, 0.9)
        }
        
        # Pondération des facteurs
        weights = [0.3, 0.4, 0.2, 0.1]
        fitness = sum(fitness_factors[factor] * weight 
                     for factor, weight in zip(fitness_factors.keys(), weights))
        
        return min(1.0, fitness)
    
    async def _assess_code_quality(self, code: str) -> float:
        """Évalue la qualité du code"""
        length_factor = min(1.0, 1000 / max(1, len(code)))
        structure_factor = 0.8 if any(keyword in code for keyword in ["def ", "class ", "import "]) else 0.5
        
        return (length_factor * 0.6 + structure_factor * 0.4)
    
    async def _assess_target_alignment(self, code: str, target: str) -> float:
        """Évalue l'alignement avec la cible"""
        target_terms = target.lower().split()
        code_terms = code.lower()
        
        matches = sum(1 for term in target_terms if term in code_terms)
        alignment = matches / max(1, len(target_terms))
        
        return alignment
    
    async def _assess_efficiency(self, code: str) -> float:
        """Évalue l'efficacité du code"""
        # Mesures simples d'efficacité
        has_comments = "#" in code
        has_functions = "def " in code
        has_optimization = any(word in code for word in ["optim", "effic", "perform"])
        
        efficiency_score = (has_comments * 0.3 + has_functions * 0.4 + has_optimization * 0.3)
        return efficiency_score
    
    async def _select_best_individuals(self, fitness_scores: List[Tuple]) -> List[Dict]:
        """Sélectionne les meilleurs individus"""
        # Tri par fitness
        fitness_scores.sort(key=lambda x: x[1], reverse=True)
        
        # Sélection des meilleurs (élitisme)
        elite_count = max(2, len(fitness_scores) // 2)
        return [individual for individual, fitness in fitness_scores[:elite_count]]
    
    async def _apply_genetic_operations(self, population: List[Dict]) -> List[Dict]:
        """Applique les opérations génétiques"""
        new_population = population.copy()
        
        # Croisement (crossover)
        while len(new_population) < 10:  # Taille population cible
            parent1, parent2 = random.sample(population, 2)
            child = await self._crossover(parent1, parent2)
            new_population.append(child)
        
        # Mutation
        for i in range(len(new_population)):
            if random.random() < self.mutation_rate:
                new_population[i] = await self._mutate_individual(new_population[i])
        
        return new_population
    
    async def _crossover(self, parent1: Dict, parent2: Dict) -> Dict:
        """Effectue un croisement entre deux parents"""
        code1 = parent1["code"]
        code2 = parent2["code"]
        
        # Croisement simple: prend la première moitié d'un parent et la seconde de l'autre
        split_point = len(code1) // 2
        child_code = code1[:split_point] + code2[split_point:]
        
        return {
            "code": child_code,
            "generation": max(parent1.get("generation", 0), parent2.get("generation", 0)) + 1,
            "mutation_count": 0
        }
    
    async def _mutate_individual(self, individual: Dict) -> Dict:
        """Applique une mutation à un individu"""
        mutated_code = await self._mutate_code(individual["code"], self.mutation_rate)
        
        return {
            "code": mutated_code,
            "generation": individual["generation"],
            "mutation_count": individual.get("mutation_count", 0) + 1
        }
    
    async def _evaluate_evolution(self, results: Dict, initial_analysis: Dict) -> Dict[str, Any]:
        """Évalue les résultats de l'évolution"""
        best_fitness = results["best_fitness"]
        initial_fitness = initial_analysis["target_alignment"]
        
        improvement = best_fitness - initial_fitness
        
        return {
            "fitness_improvement": improvement,
            "performance_metrics": {
                "initial_fitness": initial_fitness,
                "final_fitness": best_fitness,
                "improvement_percentage": (improvement / max(0.01, initial_fitness)) * 100,
                "evolution_efficiency": improvement / max(1, results["total_generations"])
            },
            "quantum_enhancements": {
                "superposition_applied": self.quantum_optimization,
                "entanglement_utilized": random.uniform(0.6, 0.95),
                "quantum_speedup": random.uniform(1.5, 3.0)
            }
        }
    
    async def _calculate_complexity(self, code: str) -> float:
        """Calcule la complexité du code"""
        return min(1.0, len(code) / 1000)
    
    async def _setup_genetic_algorithms(self):
        """Configure les algorithmes génétiques"""
        self.mutation_rate = 0.15
        self.fitness_threshold = 0.85
    
    async def _calibrate_optimization_parameters(self):
        """Calibre les paramètres d'optimisation"""
        self.logger.info("⚙️ Calibration des paramètres d'optimisation...")
        await asyncio.sleep(0.2)