from typing import Any

from modules.interfaces.interfaceAppModel import User
from modules.interfaces.interfaceChatModel import ChatWorkflow

class PublicService:
    """Lightweight proxy exposing only public callable attributes of a target.

    - Hides names starting with '_'
    - Optionally restricts to callables only
    - Optional name_filter predicate for allow-list patterns
    """

    def __init__(self, target: Any, functions_only: bool = True, name_filter=None):
        self._target = target
        self._functions_only = functions_only
        self._name_filter = name_filter

    def __getattr__(self, name: str):
        if name.startswith('_'):
            raise AttributeError(f"'{type(self._target).__name__}' attribute '{name}' is private")
        if self._name_filter and not self._name_filter(name):
            raise AttributeError(f"'{name}' not exposed by policy")
        attr = getattr(self._target, name)
        if self._functions_only and not callable(attr):
            raise AttributeError(f"'{name}' is not a function")
        return attr

    def __dir__(self):
        names = [
            n for n in dir(self._target)
            if not n.startswith('_')
            and (not self._functions_only or callable(getattr(self._target, n, None)))
            and (self._name_filter(n) if self._name_filter else True)
        ]
        return sorted(names)


class Services:

    def __init__(self, user: User, workflow: ChatWorkflow = None):
        self.user: User = user
        self.workflow: ChatWorkflow = workflow

        # Initialize interfaces

        from modules.interfaces.interfaceChatObjects import getInterface as getChatInterface
        self.interfaceChat = getChatInterface(user)
        
        from modules.interfaces.interfaceAppObjects import getInterface as getAppInterface
        self.interfaceApp = getAppInterface(user)
        
        from modules.interfaces.interfaceComponentObjects import getInterface as getComponentInterface
        self.interfaceComponent = getComponentInterface(user)
        
        # Initialize service packages

        from .serviceDocument.mainServiceDocumentExtraction import DocumentExtractionService
        self.documentExtraction = PublicService(DocumentExtractionService(self))

        from .serviceDocument.mainServiceDocumentGeneration import DocumentGenerationService
        self.documentGeneration = PublicService(DocumentGenerationService(self))

        from .serviceNeutralization.mainServiceNeutralization import NeutralizationService
        self.neutralization = PublicService(NeutralizationService(self))

        from .serviceSharepoint.mainServiceSharepoint import SharepointService
        self.sharepoint = PublicService(SharepointService(self))

        from .serviceAi.mainServiceAi import AiService
        self.ai = PublicService(AiService(self))
        
        from .serviceTicket.mainServiceTicket import TicketService
        self.ticket = PublicService(TicketService(self))
    
        from .serviceWorkflow.mainServiceWorkflow import WorkflowService
        self.workflow = PublicService(WorkflowService(self))
    

def getInterface(user: User, workflow: ChatWorkflow) -> Services:
    return Services(user, workflow)