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#
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import pandas as pd
import pytest
from sqlalchemy import String

from superset import db
from superset.connectors.sqla.models import SqlaTable
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.integration_tests.dashboard_utils import (
    create_dashboard,
    create_slice,
    create_table_metadata,
)
from tests.integration_tests.test_app import app

UNICODE_TBL_NAME = "unicode_test"


@pytest.fixture(scope="session")
def load_unicode_data():
    with app.app_context():
        _get_dataframe().to_sql(
            UNICODE_TBL_NAME,
            get_example_database().get_sqla_engine(),
            if_exists="replace",
            chunksize=500,
            dtype={"phrase": String(500)},
            index=False,
            method="multi",
            schema=get_example_default_schema(),
        )

    yield
    with app.app_context():
        engine = get_example_database().get_sqla_engine()
        engine.execute("DROP TABLE IF EXISTS unicode_test")


@pytest.fixture()
def load_unicode_dashboard_with_slice(load_unicode_data):
    slice_name = "Unicode Cloud"
    with app.app_context():
        dash = _create_unicode_dashboard(slice_name, None)
        yield
        _cleanup(dash, slice_name)


@pytest.fixture()
def load_unicode_dashboard_with_position(load_unicode_data):
    slice_name = "Unicode Cloud"
    position = "{}"
    with app.app_context():
        dash = _create_unicode_dashboard(slice_name, position)
        yield
        _cleanup(dash, slice_name)


def _get_dataframe():
    data = _get_unicode_data()
    return pd.DataFrame.from_dict(data)


def _get_unicode_data():
    return [
        {"phrase": "Под"},
        {"phrase": "řšž"},
        {"phrase": "視野無限廣"},
        {"phrase": "微風"},
        {"phrase": "中国智造"},
        {"phrase": "æøå"},
        {"phrase": "ëœéè"},
        {"phrase": "いろはにほ"},
    ]


def _create_unicode_dashboard(slice_title: str, position: str) -> Dashboard:
    table = create_table_metadata(UNICODE_TBL_NAME, get_example_database())
    table.fetch_metadata()

    if slice_title:
        slice = _create_and_commit_unicode_slice(table, slice_title)

    return create_dashboard("unicode-test", "Unicode Test", position, [slice])


def _create_and_commit_unicode_slice(table: SqlaTable, title: str):
    slice = create_slice(title, "word_cloud", table, {})
    o = db.session.query(Slice).filter_by(slice_name=slice.slice_name).one_or_none()
    if o:
        db.session.delete(o)
    db.session.add(slice)
    db.session.commit()
    return slice


def _cleanup(dash: Dashboard, slice_name: str) -> None:
    db.session.delete(dash)
    if slice_name:
        slice = db.session.query(Slice).filter_by(slice_name=slice_name).one_or_none()
        db.session.delete(slice)
    db.session.commit()
