import os, requests
from typing import Any, Dict, List, Tuple, Optional
from utils.boxapi_log import log_boxapi_response

BOXAPI_BASE = os.environ.get("BOXAPI_BASE", "https://boxapi.ir")
BOXAPI_KEY  = os.environ.get("BOXAPI_KEY", "")  # put your key in .env

class BoxAPIError(Exception):
    pass

def get_media(username: str, count: int = 5) -> Tuple[List[Dict[str, Any]], str]:
    """
    Returns (items, log_path)
    items is the array under response.body.items
    """
    url = f"{BOXAPI_BASE}/api/instagram/user/get_media"
    payload = {"username": username, "count": count}
    headers = {"Authorization": f"Bearer {BOXAPI_KEY}"} if BOXAPI_KEY else {}

    resp = None
    resp_json: Optional[Dict[str, Any]] = None
    status_code: Optional[int] = None

    try:
        resp = requests.post(url, json=payload, headers=headers, timeout=60)
        status_code = resp.status_code
        resp.raise_for_status()
        resp_json = resp.json()
    except Exception as e:
        log_path = log_boxapi_response(username, payload, resp_json, status_code, note=f"HTTP/parse error: {e}")
        raise BoxAPIError(f"BoxAPI request failed ({e}). See log: {log_path}")

    # ✅ Real structure according to your sample
    # {
    #   "status": "done",
    #   "response": {
    #     "status_code": 200,
    #     "content_type": "application/json",
    #     "body": {
    #       "items": [ ... ]
    #     }
    #   }
    # }
    try:
        top_status = resp_json.get("status")
        inner = resp_json.get("response") or {}
        inner_code = inner.get("status_code")
        body = inner.get("body") or {}
        items = body.get("items") or []

        log_path = log_boxapi_response(username, payload, resp_json, inner_code, note="OK")

        if top_status != "done" or inner_code != 200 or not isinstance(items, list):
            raise ValueError(f"Unexpected shape: status={top_status}, inner_code={inner_code}, items_type={type(items)}")
        return items, log_path
    except Exception as e:
        log_path = log_boxapi_response(username, payload, resp_json, status_code, note=f"schema error: {e}")
        raise BoxAPIError(f"Unexpected response format from BoxAPI. See log: {log_path}")

# Legacy function for backward compatibility
def fetch_boxapi_posts(username: str, count: int = 5) -> List[Dict]:
    try:
        items, _ = get_media(username, count)
        return items
    except BoxAPIError as e:
        print(f"❌ Failed to fetch posts from BoxAPI: {e}")
        return []