from django.db import transaction
from core.models import Entity

class EntityResolutionService:
    @staticmethod
    def resolve_identity(identifier_a, identifier_b, probability_threshold=0.8):
        """
        Determines if two identities belong to the same physical person based on statistical probability.
        """
        # Logic for calculating match probability
        # Placeholder for complex ML/Graph analysis logic
        match_probability = 0.9 # Mock value
        
        if match_probability >= probability_threshold:
            with transaction.atomic():
                entity_a = Entity.objects.get(identifier=identifier_a)
                entity_b = Entity.objects.get(identifier=identifier_b)
                
                # Logic to merge entities (e.g., link them)
                # In a graph db, we would add a relationship.
                # In Django, we might link via a 'resolved_to' field if existing
                
                return True
        return False
