from typing import cast

import requests

from configs import dify_config
from models.api_based_extension import APIBasedExtensionPoint


class APIBasedExtensionRequestor:
    timeout: tuple[int, int] = (5, 60)
    """timeout for request connect and read"""

    def __init__(self, api_endpoint: str, api_key: str):
        self.api_endpoint = api_endpoint
        self.api_key = api_key

    def request(self, point: APIBasedExtensionPoint, params: dict):
        """
        Request the api.

        :param point: the api point
        :param params: the request params
        :return: the response json
        """
        headers = {"Content-Type": "application/json", "Authorization": f"Bearer {self.api_key}"}

        url = self.api_endpoint

        try:
            # proxy support for security
            proxies = None
            if dify_config.SSRF_PROXY_HTTP_URL and dify_config.SSRF_PROXY_HTTPS_URL:
                proxies = {
                    "http": dify_config.SSRF_PROXY_HTTP_URL,
                    "https": dify_config.SSRF_PROXY_HTTPS_URL,
                }

            response = requests.request(
                method="POST",
                url=url,
                json={"point": point.value, "params": params},
                headers=headers,
                timeout=self.timeout,
                proxies=proxies,
            )
        except requests.Timeout:
            raise ValueError("request timeout")
        except requests.ConnectionError:
            raise ValueError("request connection error")

        if response.status_code != 200:
            raise ValueError(f"request error, status_code: {response.status_code}, content: {response.text[:100]}")

        return cast(dict, response.json())
