from __future__ import annotations

from app import customers
from app.models import Customer


async def test_remember_finds_or_creates_and_merges(db_session):
    c1 = await customers.remember(db_session, 1, shopify_customer_id="C9", name="María")
    assert c1 is not None and c1.shopify_customer_id == "C9" and c1.name == "María"
    # same Shopify id -> same record, fills in the newly-known email
    c2 = await customers.remember(db_session, 1, shopify_customer_id="C9", email="Maria@X.com")
    assert c2.id == c1.id and c2.email == "maria@x.com"  # normalized
    # by email -> same record
    c3 = await customers.remember(db_session, 1, email="maria@x.com")
    assert c3.id == c1.id
    # no identifying key -> None
    assert await customers.remember(db_session, 1) is None


async def test_remember_is_tenant_isolated(db_session):
    a = await customers.remember(db_session, 1, email="x@x.com", name="A")
    b = await customers.remember(db_session, 2, email="x@x.com", name="B")
    assert a.id != b.id  # same email, different tenant -> different customer (no cross-store)
    found2 = await customers.remember(db_session, 2, email="x@x.com")
    assert found2.id == b.id and found2.id != a.id


def test_returning_note_only_for_returning():
    assert customers.returning_note(None) == ""
    assert customers.returning_note(Customer(tenant_id=1, name="Ana", chats=0)) == ""  # first-timer
    note = customers.returning_note(Customer(tenant_id=1, name="Ana", chats=2, last_topic="envíos"))
    assert "CLIENTE QUE VUELVE" in note and "Ana" in note and "envíos" in note