import datetime

import requests
from anthropic import Anthropic, AsyncAnthropic
from dotenv import load_dotenv
from langsmith.run_helpers import traceable
from langsmith.run_trees import RunTree

from claude_space.settings import settings

load_dotenv()


@traceable(run_type="llm")
class AnthropicCustom:
    def __init__(
        self,
        api_key,
        model,
        run_tree: RunTree,
        max_tokens=1000,
        prompt="",
    ):
        self.api_key = api_key
        self.model = model
        self.max_tokens = max_tokens
        self.prompt = prompt
        self.run_tree = run_tree

    def get_anthropic_response(self):
        syncClient = Anthropic(api_key=self.api_key, timeout=5)
        response = syncClient.completions.create(
            prompt=self.prompt,
            model=self.model,
            max_tokens_to_sample=self.max_tokens,
        )
        self.final_response = response.completion
        return response.completion

    async def get_anthropic_response_async(self):
        asyncClient = AsyncAnthropic(api_key=self.api_key, timeout=60)
        self.final_response = ""
        try:
            async for line in await asyncClient.completions.create(
                prompt=self.prompt,
                model=self.model,
                max_tokens_to_sample=self.max_tokens,
                stream=True,
            ):
                self.final_response += line.completion
                yield line.completion
        finally:
            self.get_final_response()

    def get_final_response(self):
        requests.post(
            url=f"{settings.LANGCHAIN_ENDPOINT}/runs",
            json={
                "name": "Anthropic",
                "outputs": {"text": self.final_response},
                "run_type": "chain",
                "inputs": {"text": self.prompt},
                "start_time": datetime.datetime.utcnow().isoformat(),
                "end_time": datetime.datetime.utcnow().isoformat(),
                "tags": [self.model, self.max_tokens],
                "parent_run_id": str(self.run_tree.id),
                "session_name": settings.LANGCHAIN_PROJECT,
            },
            headers={
                "x-api-key": settings.LANGCHAIN_API_KEY,
            },
        )

    def __str__(self):
        return self.final_response

    def __repr__(self):
        return self.final_response

    def __iter__(self):
        return iter(self.final_response)