import httpx
import os
from urllib.parse import urljoin


class API:
    URLBASE = "https://api.github.com"  # note: no slash
    headers = {
        "Accept": "application/vnd.github.v3+json",
        "Authorization": f"token {os.environ['GITHUB_TOKEN']}",
    }

    def raise_on_4xx_5xx(self, response):
        response.raise_for_status()

    def get(self, url: str) -> list:
        """Uses httpx.Client().get to send the appropriate github headers, and return the url"""
        content = []
        with httpx.Client(
            headers=self.headers, event_hooks={"response": [self.raise_on_4xx_5xx]}
        ) as client:
            return client.get(urljoin(self.URLBASE, url)).json()

    def get_with_pagination(self, url: str) -> list:
        """Uses httpx.Client().get to send the appropriate github headers, and return the url"""
        content = []
        with httpx.Client(
            headers=self.headers, event_hooks={"response": [self.raise_on_4xx_5xx]}
        ) as client:
            while True:
                resp = client.get(urljoin(self.URLBASE, url))
                body = resp.json()
                if isinstance(body, dict):
                    # short circuit if not list
                    return body
                content.extend(body)
                if not resp.links.get("next"):
                    break
                url = resp.links["next"]["url"]
        return content