#!/usr/bin/env python3
"""


See EOF for license/metadata/notes as applicable
"""

##-- builtin imports
from __future__ import annotations

# import abc
import datetime
import enum
import functools as ftz
import itertools as itz
import logging as logmod
import pathlib as pl
import re
import time
import types
import weakref
# from copy import deepcopy
# from dataclasses import InitVar, dataclass, field
from typing import (TYPE_CHECKING, Any, Callable, ClassVar, Final, Generic,
                    Iterable, Iterator, Mapping, Match, MutableMapping,
                    Protocol, Sequence, Tuple, TypeAlias, TypeGuard, TypeVar,
                    cast, final, overload, runtime_checkable, Generator)
from uuid import UUID, uuid1

##-- end builtin imports

##-- lib imports
import more_itertools as mitz
##-- end lib imports

##-- logging
logging = logmod.getLogger(__name__)
##-- end logging

@dataclass
class TimelineEntry:

    when     : datetime       = field()
    what     : str            = field()
    where    : str            = field()
    duration : None|timedelta = field(default=None)
    tags     : set[str]       = field(default=set)
    urls     : set[str]       = field(default=set)
    who      : set[str]       = field(default=set)

    def __str__(self):
        return ""

    def range(self) -> tuple[datetime, datetime]:
        if self.duration is None:
            return (self.when , self.when)
        return (self.when, self.when + self.duration)
