from types import SimpleNamespace
from unittest.mock import MagicMock, patch

from app.services.wechat_login_service import resolve_wechat_login_user


def test_openid_bound_phone_mismatch_rejects():
    bound = SimpleNamespace(id="u1", phone_no="13800138000", wx_openid="oid-a")
    db = MagicMock()
    with patch(
        "app.services.wechat_login_service.user_crud.get_by_wx_openid",
        return_value=bound,
    ):
        user, err, code = resolve_wechat_login_user(
            db, openid="oid-a", phone="13900139000"
        )
    assert user is None
    assert code == 401
    assert "不一致" in err or "不匹配" in err


def test_openid_bound_phone_match_ok():
    bound = SimpleNamespace(id="u1", phone_no="13800138000", wx_openid="oid-a")
    db = MagicMock()
    with patch(
        "app.services.wechat_login_service.user_crud.get_by_wx_openid",
        return_value=bound,
    ):
        user, err, code = resolve_wechat_login_user(
            db, openid="oid-a", phone="+8613800138000"
        )
    assert user is bound
    assert err is None
    assert code is None


def test_unbound_no_user_rejects():
    db = MagicMock()
    with patch(
        "app.services.wechat_login_service.user_crud.get_by_wx_openid",
        return_value=None,
    ), patch(
        "app.services.wechat_login_service.user_crud.list_active_by_phone_no",
        return_value=[],
    ):
        user, err, code = resolve_wechat_login_user(
            db, openid="oid-new", phone="13800138000"
        )
    assert user is None
    assert code == 401


def test_unbound_multi_user_rejects():
    db = MagicMock()
    u1 = SimpleNamespace(id="a", phone_no="13800138000", wx_openid=None)
    u2 = SimpleNamespace(id="b", phone_no="13800138000", wx_openid=None)
    with patch(
        "app.services.wechat_login_service.user_crud.get_by_wx_openid",
        return_value=None,
    ), patch(
        "app.services.wechat_login_service.user_crud.list_active_by_phone_no",
        return_value=[u1, u2],
    ):
        user, err, code = resolve_wechat_login_user(
            db, openid="oid-new", phone="13800138000"
        )
    assert user is None
    assert code == 400
    assert "多个" in err


def test_unbound_unique_binds_openid():
    db = MagicMock()
    u = SimpleNamespace(id="a", phone_no="13800138000", wx_openid=None, update_time=None)
    with patch(
        "app.services.wechat_login_service.user_crud.get_by_wx_openid",
        side_effect=[None, None],
    ), patch(
        "app.services.wechat_login_service.user_crud.list_active_by_phone_no",
        return_value=[u],
    ):
        user, err, code = resolve_wechat_login_user(
            db, openid="oid-new", phone="13800138000"
        )
    assert err is None
    assert user is u
    assert u.wx_openid == "oid-new"
    db.commit.assert_called()