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

BOXAPI_USERNAME = os.environ.get("BOXAPI_USERNAME", "")
BOXAPI_PASSWORD = os.environ.get("BOXAPI_PASSWORD", "")
# Your .env can override to /get_media; default matches your cURL (/get_media_by_username)
BOXAPI_ENDPOINT = os.environ.get(
    "BOXAPI_ENDPOINT",
    "https://boxapi.ir/api/instagram/user/get_media_by_username"
)

class BoxAPIError(Exception):
    pass

def get_media(username: str, count: int = 5) -> Tuple[List[Dict[str, Any]], str]:
    """
    Calls BoxAPI and returns (items, log_path).
    """
    if not BOXAPI_USERNAME or not BOXAPI_PASSWORD:
        raise BoxAPIError("Missing BOXAPI_USERNAME/BOXAPI_PASSWORD in environment.")

    payload = {"username": username, "count": count}
    resp = None
    resp_json: Optional[Dict[str, Any]] = None
    resp_text: Optional[str] = None
    status_code: Optional[int] = None

    try:
        resp = requests.post(
            BOXAPI_ENDPOINT,
            json=payload,
            auth=(BOXAPI_USERNAME, BOXAPI_PASSWORD),
            timeout=60,
        )
        status_code = resp.status_code
        resp_text = resp.text
        # Try to parse JSON; if it fails, we'll log text and raise
        try:
            resp_json = resp.json()
        except Exception:
            log_path = log_boxapi_response(
                username, payload, status_code, response_text=resp_text,
                note="Non-JSON response"
            )
            raise BoxAPIError(f"BoxAPI non-JSON response. See log: {log_path}")

        # Expected shape: status -> response -> status_code + body.items
        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, inner_code, response_json=resp_json, note="OK"
        )

        if top_status != "done" or inner_code != 200 or not isinstance(items, list):
            # Include a concise snapshot of keys to help debugging
            snapshot = {
                "top_status": top_status,
                "inner_code": inner_code,
                "has_body": isinstance(body, dict),
                "items_type": str(type(items)),
                "items_len": len(items) if isinstance(items, list) else None,
            }
            raise BoxAPIError(f"Unexpected response format from BoxAPI ({snapshot}). See log: {log_path}")

        return items, log_path

    except BoxAPIError:
        raise
    except Exception as e:
        log_path = log_boxapi_response(
            username, payload, status_code, response_json=resp_json, response_text=resp_text,
            note=f"HTTP/parse error: {e}"
        )
        raise BoxAPIError(f"BoxAPI request failed ({e}). 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 []