"""OpenAI provider — direct OpenAI SDK integration."""

from __future__ import annotations

import os
from typing import Any

from voice_to_notes.providers.base import AIProvider


class OpenAIProvider(AIProvider):
    """Connects to the OpenAI API."""

    def __init__(
        self,
        api_key: str | None = None,
        model: str = "gpt-4o-mini",
    ) -> None:
        self._api_key = api_key or os.environ.get("OPENAI_API_KEY", "")
        self._model = model
        self._client: Any = None

    def _ensure_client(self) -> Any:
        if self._client is not None:
            return self._client

        if not self._api_key:
            raise RuntimeError("OpenAI API key not configured. Set OPENAI_API_KEY or provide it in settings.")

        try:
            from openai import OpenAI

            self._client = OpenAI(api_key=self._api_key)
        except ImportError:
            raise RuntimeError("openai package is required. Install with: pip install openai")
        return self._client

    def chat(self, messages: list[dict[str, str]], **kwargs: Any) -> str:
        client = self._ensure_client()
        response = client.chat.completions.create(
            model=kwargs.get("model", self._model),
            messages=messages,
            temperature=kwargs.get("temperature", 0.7),
            max_tokens=kwargs.get("max_tokens", 2048),
        )
        return response.choices[0].message.content or ""

    def is_available(self) -> bool:
        return bool(self._api_key)

    @property
    def name(self) -> str:
        return "OpenAI"