import logging

import httpx

logger = logging.getLogger(__name__)


class MessengerStatus:
    async def probe(self, account: dict) -> dict:
        page_id = account.get("page_id", "")
        access_token = account.get("page_access_token", "")

        if not page_id or not access_token:
            return {"healthy": False, "reason": "missing credentials"}

        try:
            async with httpx.AsyncClient(timeout=httpx.Timeout(10.0)) as client:
                resp = await client.get(
                    f"https://graph.facebook.com/v22.0/{page_id}",
                    params={"fields": "id,name,access_token", "access_token": access_token},
                )
                if resp.status_code == 200:
                    data = resp.json()
                    return {
                        "healthy": True,
                        "page_id": page_id,
                        "page_name": data.get("name", ""),
                        "token_valid": True,
                    }
                return {"healthy": False, "reason": f"graph api error: {resp.status_code}"}
        except Exception as e:
            logger.exception("messenger probe error")
            return {"healthy": False, "reason": str(e)}

    @staticmethod
    def build_summary(snapshot: dict) -> dict:
        probes = {}
        if snapshot:
            if "page_name" in snapshot:
                probes["page_name"] = snapshot["page_name"]
            if "token_valid" in snapshot:
                probes["token_valid"] = snapshot["token_valid"]
            if "page_id" in snapshot:
                probes["page_id"] = snapshot["page_id"]
        return {
            "channel": "messenger",
            "probes": probes,
        }