"""Demo adapters behind the frozen integration Protocols (SPEC §9, #14).

`setup()` runs when the package is first imported. Every consumer imports `app.integrations.base`, which
initialises this package first, and `app/main.py` is a frozen contract — so the registry is wired before
any request or job without a startup hook. Setup only constructs objects: data files and DB sessions are
opened lazily on the first call, so importing the package never fails on I/O.

Registry after setup:
- `prescriptions` — `MisMock`: clinical DB `prescriptions`, then `data/meds/mis_prescriptions.json`;
- `identity` — `ConnectCodeIdentity`: one-time connect code from the doctor (ЕСИА stand-in);
- `drug_info` — `GrlsExcerpts`: `data/meds/grls/*.yaml`;
- `notifier` — `CompositeNotifier`: in-memory dashboard feed + optional Telegram doctor chat;
- `outbox` — unchanged `MemoryOutbox` (the web console drains it; the Telegram channel wraps it at start).
"""

from app.integrations.base import (
    EmptyPrescriptions,
    MemoryNotifier,
    NoDrugInfo,
    RejectIdentity,
    integrations,
)
from app.integrations.connect_code import ConnectCodeIdentity
from app.integrations.grls import GrlsExcerpts
from app.integrations.mis_mock import MisMock
from app.integrations.notify import CompositeNotifier, NotificationFeed

__all__ = ["CompositeNotifier", "ConnectCodeIdentity", "GrlsExcerpts", "MisMock", "NotificationFeed", "setup"]

_done = False


def setup(*, force: bool = False) -> None:
    """Register the demo adapters. Idempotent; never replaces an adapter someone already swapped in
    (a test fake, the Telegram outbox), only the in-memory defaults from `base.py` — unless `force`."""
    global _done
    if _done and not force:
        return
    if force or isinstance(integrations.prescriptions, EmptyPrescriptions):
        integrations.prescriptions = MisMock()
    if force or isinstance(integrations.identity, RejectIdentity):
        integrations.identity = ConnectCodeIdentity()
    if force or isinstance(integrations.drug_info, NoDrugInfo):
        integrations.drug_info = GrlsExcerpts()
    # Exact type check: MemoryNotifier subclasses used as test sinks must stay in place.
    if force or type(integrations.notifier) is MemoryNotifier:
        integrations.notifier = CompositeNotifier()
    _done = True


setup()