| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # 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 |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| """Get the ISO standard day number of the week from a given day string.""" |
| from __future__ import annotations |
| |
| import enum |
| from typing import Iterable |
| |
| |
| @enum.unique |
| class WeekDay(enum.IntEnum): |
| """Python Enum containing Days of the Week.""" |
| |
| MONDAY = 1 |
| TUESDAY = 2 |
| WEDNESDAY = 3 |
| THURSDAY = 4 |
| FRIDAY = 5 |
| SATURDAY = 6 |
| SUNDAY = 7 |
| |
| @classmethod |
| def get_weekday_number(cls, week_day_str: str): |
| """ |
| Return the ISO Week Day Number for a Week Day. |
| |
| :param week_day_str: Full Name of the Week Day. Example: "Sunday" |
| :return: ISO Week Day Number corresponding to the provided Weekday |
| """ |
| sanitized_week_day_str = week_day_str.upper() |
| |
| if sanitized_week_day_str not in cls.__members__: |
| raise AttributeError(f'Invalid Week Day passed: "{week_day_str}"') |
| |
| return cls[sanitized_week_day_str] |
| |
| @classmethod |
| def convert(cls, day: str | WeekDay) -> int: |
| """Helper function that returns the day number in the week.""" |
| if isinstance(day, WeekDay): |
| return day |
| return cls.get_weekday_number(week_day_str=day) |
| |
| @classmethod |
| def validate_week_day( |
| cls, |
| week_day: str | WeekDay | Iterable[str] | Iterable[WeekDay], |
| ) -> set[int]: |
| """Validate each item of iterable and create a set to ease compare of values.""" |
| if not isinstance(week_day, Iterable): |
| if isinstance(week_day, WeekDay): |
| week_day = {week_day} |
| else: |
| raise TypeError( |
| f"Unsupported Type for week_day parameter: {type(week_day)}." |
| "Input should be iterable type:" |
| "str, set, list, dict or Weekday enum type" |
| ) |
| if isinstance(week_day, str): |
| week_day = {week_day} |
| |
| return {cls.convert(item) for item in week_day} |