"""The admin lifeline for a sign-up that is stuck outside (E9.5 S5, roadmap UX-25), DB-lane.

Approve an address BEFORE the person registers and their sign-up produces no queue row at all —
`_decide` only takes a still-pending invite — so the Access-requests screen stayed empty while they
sat locked out, and the badge read zero. The only working move was re-typing the address into the
whitelist box, which nobody would guess.

Two earlier attempts at this were reverted after review, and both moved AUTHORITY rather than
visibility: auto-activating on registration, and reopening the approved invite to pending. So the
tests here pin the boundary as much as the feature — an admin click, gated on an address that is
already allowed, and nothing an unauthenticated caller can reach.
"""

from sqlalchemy import select

from app.models import AuditLog, AuthToken, Invite, User

_PW = "correct horse battery"


def _pending_access(client):
    r = client.get("/api/admin/pending-access")
    assert r.status_code == 200
    return {u["email"]: u for u in r.json()}


def _stuck_registrant(db, make_user, admin):
    """The UX-25 shape: the admin approved the address first, the account arrived afterwards."""
    db.add(Invite(email="later@example.com", status="approved", decided_by=admin.email))
    db.commit()
    return make_user(email="later@example.com", password=_PW, is_active=False)


def test_a_pre_approved_registrant_is_listed_and_offers_activation(db, make_user, as_user):
    admin = make_user(email="admin@example.com", role="admin")
    _stuck_registrant(db, make_user, admin)

    row = _pending_access(as_user(admin))["later@example.com"]

    assert row["is_active"] is False
    assert (
        row["can_activate"] is True
    )  # the address is already allowed — the click just finishes it


def test_an_ordinary_registrant_awaiting_a_decision_is_not_listed_twice(db, make_user, as_user):
    # They already have a pending invite with Approve on it in the queue above, and their address is
    # not allowed YET — the decision is the queue's to own. Caught in UAT on 2026-09-05: an earlier
    # filter keyed on "unconfirmed" put every fresh registration in both lists at once.
    admin = make_user(email="admin@example.com", role="admin")
    db.add(Invite(email="normal@example.com", status="pending"))
    db.commit()
    make_user(email="normal@example.com", password=_PW, is_active=False)

    assert "normal@example.com" not in _pending_access(as_user(admin))


def test_a_fresh_registration_stays_in_the_queue_and_out_of_this_list(db, make_user, as_user):
    # The realistic version of the case above: a brand-new sign-up is inactive AND unconfirmed. It
    # still belongs only to the queue — the admin's next act is the decision, not a re-send.
    admin = make_user(email="admin@example.com", role="admin")
    db.add(Invite(email="fresh@example.com", status="pending"))
    db.commit()
    make_user(email="fresh@example.com", password=_PW, is_active=False, email_verified=False)

    assert "fresh@example.com" not in _pending_access(as_user(admin))


def test_activating_lets_them_in_and_is_recorded(db, make_user, as_user):
    admin = make_user(email="admin@example.com", role="admin")
    stuck = _stuck_registrant(db, make_user, admin)

    r = as_user(admin).post(f"/api/admin/users/{stuck.id}/activate")

    assert r.status_code == 200 and r.json()["is_active"] is True
    db.expire_all()
    assert db.get(User, stuck.id).is_active is True
    actions = db.execute(select(AuditLog.action)).scalars().all()
    assert (
        "user_activate" in actions
    )  # the admin acted on someone's access; it is not a silent read


def test_activating_an_address_that_is_not_allowed_is_refused(db, make_user, as_user):
    # The guard that keeps this button from manufacturing an inconsistent account: password sign-in
    # only checks is_active and would let them in, while their Google sign-in would be turned away
    # and silently reopened as a fresh access request. Whitelisting is the move that says "let them
    # in"; this one only finishes a decision already made.
    admin = make_user(email="admin@example.com", role="admin")
    nobody = make_user(email="nobody@example.com", password=_PW, is_active=False)

    r = as_user(admin).post(f"/api/admin/users/{nobody.id}/activate")

    assert r.status_code == 409
    assert r.json()["detail"]["reason"] == "not_allowed"
    db.expire_all()
    assert db.get(User, nobody.id).is_active is False


def test_activating_twice_is_not_an_error(db, make_user, as_user):
    admin = make_user(email="admin@example.com", role="admin")
    stuck = _stuck_registrant(db, make_user, admin)
    client = as_user(admin)

    assert client.post(f"/api/admin/users/{stuck.id}/activate").status_code == 200
    assert client.post(f"/api/admin/users/{stuck.id}/activate").status_code == 200


def test_a_suspended_account_is_not_offered_as_stuck(db, make_user, as_user):
    # It cannot sign in either, but that is a decision already made — not a person waiting on one.
    admin = make_user(email="admin@example.com", role="admin")
    db.add(Invite(email="banned@example.com", status="approved", decided_by=admin.email))
    db.commit()
    make_user(email="banned@example.com", password=_PW, is_active=False, is_suspended=True)

    assert "banned@example.com" not in _pending_access(as_user(admin))


# --- the confirmation resend ---------------------------------------------------------------------


def test_an_unconfirmed_account_is_listed_and_can_be_sent_a_fresh_link(
    db, make_user, as_user, monkeypatch
):
    from app.routes import admin as admin_routes
    from app.routes import auth as auth_routes

    monkeypatch.setattr(admin_routes.email_mod, "email_enabled", lambda db=None: True)
    sent: list[tuple[str, str]] = []
    monkeypatch.setattr(
        auth_routes.email_mod,
        "send_verify_email",
        lambda to, lang, link, **kw: sent.append((to, link)) is None,
    )
    admin = make_user(email="admin@example.com", role="admin")
    # Active but unconfirmed — a real state since E9.5 S1 made the two gates order-independent. It is
    # not the admin's to decide, but the mail may simply never have arrived, so it is theirs to help
    # with. The approved invite is what puts them on this screen at all: the list is "the address may
    # sign in, this account still can't", so an undecided request stays with the queue that owns it.
    db.add(Invite(email="unconfirmed@example.com", status="approved", decided_by=admin.email))
    db.commit()
    u = make_user(email="unconfirmed@example.com", password=_PW, email_verified=False)

    assert "unconfirmed@example.com" in _pending_access(as_user(admin))
    r = as_user(admin).post(f"/api/admin/users/{u.id}/resend-verification")

    assert r.status_code == 200 and r.json()["email"] == "unconfirmed@example.com"
    assert [to for to, _ in sent] == ["unconfirmed@example.com"]
    tokens = db.execute(select(AuthToken).where(AuthToken.user_id == u.id)).scalars().all()
    assert [t.kind for t in tokens] == ["verify"]


def test_the_resend_says_so_when_the_instance_cannot_send_mail(db, make_user, as_user, monkeypatch):
    from app.routes import admin as admin_routes

    monkeypatch.setattr(admin_routes.email_mod, "email_enabled", lambda db=None: False)
    admin = make_user(email="admin@example.com", role="admin")
    u = make_user(email="unconfirmed@example.com", password=_PW, email_verified=False)

    r = as_user(admin).post(f"/api/admin/users/{u.id}/resend-verification")

    # Mail is fail-soft everywhere else, which is exactly what left the 0.78.5 sign-ups with nothing
    # to fall back on. An admin pressing a button gets the failure, not a success toast.
    assert r.status_code == 409 and r.json()["detail"]["reason"] == "email_off"


def test_resending_to_an_already_confirmed_account_is_refused(db, make_user, as_user):
    admin = make_user(email="admin@example.com", role="admin")
    u = make_user(email="fine@example.com", password=_PW)

    r = as_user(admin).post(f"/api/admin/users/{u.id}/resend-verification")

    assert r.status_code == 409 and r.json()["detail"]["reason"] == "not_applicable"


# --- the badge -----------------------------------------------------------------------------------


def test_the_badge_counts_stuck_sign_ups_but_not_ones_the_queue_already_shows(
    db, make_user, client
):
    # Signed in for real, not via the as_user override: /api/me resolves its user through
    # optional_current_user, which that override does not cover (see test_me_email_flag).
    admin = make_user(email="admin@example.com", password=_PW, role="admin")
    _stuck_registrant(db, make_user, admin)  # approved first → counts
    db.add(Invite(email="normal@example.com", status="pending"))  # already in the queue → doesn't
    db.commit()
    make_user(email="normal@example.com", password=_PW, is_active=False)
    make_user(email="unconfirmed@example.com", password=_PW, email_verified=False)  # not ours

    assert (
        client.post(
            "/auth/password-login", json={"email": admin.email, "password": _PW}
        ).status_code
        == 200
    )
    me = client.get("/api/me").json()
    assert me["authenticated"] is True

    # An unconfirmed account waits on its OWNER, not on the admin — listing it is help, badging it
    # would be nagging about something the admin did not cause.
    assert me["pending_activations"] == 1
    assert me["pending_invites"] == 1  # unchanged meaning: still just the undecided requests