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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
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# specific language governing permissions and limitations
# under the License.

from __future__ import annotations

import csv
from datetime import datetime
from io import BytesIO, StringIO
from typing import Any

import pandas as pd
import pytest


@pytest.fixture
def dttm() -> datetime:
    return datetime.strptime("2019-01-02 03:04:05.678900", "%Y-%m-%d %H:%M:%S.%f")


def create_csv_file(data: list[list[str]] | None = None) -> BytesIO:
    data = (
        [
            ["Name", "Age", "City"],
            ["John", "30", "New York"],
        ]
        if not data
        else data
    )

    output = StringIO()
    writer = csv.writer(output)
    for row in data:
        writer.writerow(row)
    output.seek(0)
    bytes_buffer = BytesIO(output.getvalue().encode("utf-8"))
    return bytes_buffer


def create_excel_file(data: dict[str, list[Any]] | None = None) -> BytesIO:
    data = {"Name": ["John"], "Age": [30], "City": ["New York"]} if not data else data
    excel_buffer = BytesIO()
    df = pd.DataFrame(data)
    df.to_excel(excel_buffer, index=False)
    excel_buffer.seek(0)
    return excel_buffer