"""Lambda handler — repoints 3CX call flow for a holiday day-shift.

A holiday is a day-only shift (08:00-17:00 ET), one HOLIDAY record per date.
At 08:00 this Lambda is invoked with ``{"action": "activate", "date": ...}`` and
at 17:00 with ``{"action": "deactivate", ...}``.
"""

import json
import logging
import os

import shared.sentry_init  # noqa: F401
from shared.holiday_flow import activate, deactivate
from shared.schedule import ShiftSchedule
from shared.secrets import get_secret
from shared.three_cx_client import ThreeCXClient

logger = logging.getLogger()
logger.setLevel(logging.INFO)


def _make_client() -> ThreeCXClient:
    secret_prefix = os.environ["TCX_SECRET_PREFIX"]
    return ThreeCXClient(
        domain=get_secret(f"{secret_prefix}domain"),
        auth_mode="oauth",
        client_id=get_secret(f"{secret_prefix}client-id"),
        client_secret=get_secret(f"{secret_prefix}client-secret"),
    )


def _activate(schedule: ShiftSchedule, date: str) -> dict:
    return activate(schedule, date, client_factory=_make_client)


def _deactivate(schedule: ShiftSchedule, date: str) -> dict:
    return deactivate(schedule, date, client_factory=_make_client)


def handler(event, context):
    if os.environ.get("STAGE", "prod") != "prod":
        logger.info("Skipping holiday router because STAGE is not prod")
        return {"skipped": "non_prod"}

    action = event.get("action")
    date = event.get("date")
    logger.info("Holiday router invoked: action=%s date=%s", action, date)

    if not date:
        return {"error": True, "reason": "missing_date"}

    schedule = ShiftSchedule()
    try:
        if action == "activate":
            result = _activate(schedule, date)
        elif action == "deactivate":
            result = _deactivate(schedule, date)
        else:
            return {"error": True, "reason": "unknown_action", "action": action}
    except Exception:
        logger.exception("Holiday router failed for action=%s date=%s", action, date)
        return {"error": True, "action": action, "date": date}

    logger.info("Result: %s", json.dumps(result, default=str))
    return result