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from typing import Callable, Optional

import pytest

from superset import db
from superset.connectors.sqla.models import SqlaTable
from superset.models.core import Database
from superset.models.dashboard import Dashboard
from superset.models.slice import Slice
from superset.utils.core import get_example_default_schema
from superset.utils.database import get_example_database
from tests.example_data.data_loading.base_data_loader import DataLoader
from tests.example_data.data_loading.data_definitions.types import Table
from tests.integration_tests.dashboard_utils import create_table_metadata
from tests.integration_tests.test_app import app

BIRTH_NAMES_TBL_NAME = "birth_names"


@pytest.fixture(scope="session")
def load_birth_names_data(
    birth_names_table_factory: Callable[[], Table], data_loader: DataLoader
):
    birth_names_table: Table = birth_names_table_factory()
    data_loader.load_table(birth_names_table)
    yield
    data_loader.remove_table(birth_names_table.table_name)


@pytest.fixture()
def load_birth_names_dashboard_with_slices(load_birth_names_data):
    with app.app_context():
        dash_id_to_delete, slices_ids_to_delete = _create_dashboards()
        yield
        _cleanup(dash_id_to_delete, slices_ids_to_delete)


@pytest.fixture(scope="module")
def load_birth_names_dashboard_with_slices_module_scope(load_birth_names_data):
    with app.app_context():
        dash_id_to_delete, slices_ids_to_delete = _create_dashboards()
        yield
        _cleanup(dash_id_to_delete, slices_ids_to_delete)


@pytest.fixture(scope="class")
def load_birth_names_dashboard_with_slices_class_scope(load_birth_names_data):
    with app.app_context():
        dash_id_to_delete, slices_ids_to_delete = _create_dashboards()
        yield
        _cleanup(dash_id_to_delete, slices_ids_to_delete)


def _create_dashboards():
    table = _create_table(
        table_name=BIRTH_NAMES_TBL_NAME,
        database=get_example_database(),
        fetch_values_predicate="123 = 123",
    )

    from superset.examples.birth_names import create_dashboard, create_slices

    slices, _ = create_slices(table)
    dash = create_dashboard(slices)
    slices_ids_to_delete = [slice.id for slice in slices]
    dash_id_to_delete = dash.id
    return dash_id_to_delete, slices_ids_to_delete


def _create_table(
    table_name: str,
    database: "Database",
    fetch_values_predicate: Optional[str] = None,
):
    table = create_table_metadata(
        table_name=table_name,
        database=database,
        fetch_values_predicate=fetch_values_predicate,
    )
    from superset.examples.birth_names import _add_table_metrics, _set_table_metadata

    _set_table_metadata(table, database)
    _add_table_metrics(table)
    db.session.commit()
    return table


def _cleanup(dash_id: int, slice_ids: list[int]) -> None:
    schema = get_example_default_schema()
    for datasource in db.session.query(SqlaTable).filter_by(
        table_name="birth_names", schema=schema
    ):
        for col in datasource.columns + datasource.metrics:
            db.session.delete(col)

    for dash in db.session.query(Dashboard).filter_by(id=dash_id):
        db.session.delete(dash)
    for slc in db.session.query(Slice).filter(Slice.id.in_(slice_ids)):
        db.session.delete(slc)
    db.session.commit()