import os
import json
import time
import base64
import logging
import requests

logger = logging.getLogger("github")

GITHUB_TOKEN = os.environ.get("GITHUB_TOKEN", "")
GITHUB_REPO = "mishableskineetudiant-stack/proxylistfiltered"
FILE_PATH = "proxies_live.json"


def _headers():
    h = {"Accept": "application/vnd.github.v3+json"}
    if GITHUB_TOKEN:
        h["Authorization"] = f"Bearer {GITHUB_TOKEN}"
    return h


def save_to_github(proxies_data):
    if not GITHUB_TOKEN:
        return False
    try:
        content = json.dumps({
            "updated_at": time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime()),
            "count": len(proxies_data),
            "proxies": proxies_data,
        }, indent=2)
        encoded = base64.b64encode(content.encode()).decode()
        url = f"https://api.github.com/repos/{GITHUB_REPO}/contents/{FILE_PATH}"
        sha = None
        try:
            r = requests.get(url, headers=_headers(), timeout=10)
            if r.status_code == 200:
                sha = r.json().get("sha")
        except Exception:
            pass
        body = {"message": f"Update: {len(proxies_data)} proxies", "content": encoded}
        if sha:
            body["sha"] = sha
        r = requests.put(url, json=body, headers=_headers(), timeout=15)
        if r.status_code in (200, 201):
            logger.info(f"GitHub save OK: {len(proxies_data)}")
            return True
        logger.error(f"GitHub save failed: {r.status_code}")
        return False
    except Exception as e:
        logger.error(f"GitHub save error: {e}")
        return False


def load_from_github():
    try:
        url = f"https://api.github.com/repos/{GITHUB_REPO}/contents/{FILE_PATH}"
        r = requests.get(url, headers=_headers(), timeout=10)
        if r.status_code != 200:
            return []
        content = base64.b64decode(r.json()["content"]).decode()
        proxies = json.loads(content).get("proxies", [])
        logger.info(f"GitHub load OK: {len(proxies)}")
        return proxies
    except Exception as e:
        logger.error(f"GitHub load error: {e}")
        return []