import asyncio
from functools import wraps
from typing import Any, AsyncIterator, Generator

from ..core.context_manager import ObservabilityContext
from ..core.token_tracker import TokenTracker
from ..utils.helpers import count_tokens


class AnthropicPatcher:
    """
    Patcher for Anthropic's API that adds tracing and token tracking.

    Features:
    - Tracing with OpenTelemetry
    - Token counting for prompt and response
    - Policy enforcement
    """

    def __init__(self,
                 token_tracker: TokenTracker = None,
                 log_file: Any = None,
                 context: ObservabilityContext = None):
        self._original_functions = {}
        self._token_tracker = token_tracker or TokenTracker()
        self._context = context or ObservabilityContext.get_current()

    def patch(self) -> None:
        """
        Patch Anthropic's SDK functions.
        """
        try:
            import anthropic

            pass

        except ImportError:
            raise ImportError("Anthropic SDK is not installed.")

    def unpatch(self) -> None:
        """
        Restore original Anthropic SDK functions.
        """
        try:
            import anthropic

            pass
        except ImportError:
            raise ImportError("Anthropic SDK is not installed.")
