from abc import abstractmethod
from typing import Iterable

from cpl_query.base.queryable_abc import QueryableABC


class IterableABC(QueryableABC):
    r"""ABC to define functions on list
    """

    @abstractmethod
    def __init__(self, t: type = None, values: Iterable = None):
        QueryableABC.__init__(self, t, values)

    def __setitem__(self, i, val):
        self._check_type(val)
        values = [*self._values]
        values[i] = val
        self._set_values(values)

    def __delitem__(self, i):
        values = [*self._values]
        del values[i]
        self._set_values(values)

    @property
    def type(self) -> type:
        return self._type

    def __str__(self):
        return str(self.to_list())

    def append(self, _object: object):
        self.add(_object)

    def add(self, _object: object):
        r"""Adds element to list
        Parameter
        ---------
            _object: :class:`object`
                value
        """
        self._check_type(_object)
        values = [*self._values, _object]
        self._set_values(values)

    def extend(self, __iterable: Iterable) -> 'IterableABC':
        r"""Adds elements of given list to list
        Parameter
        ---------
            __iterable: :class: `cpl_query.extension.iterable.Iterable`
                index
        """
        for value in __iterable:
            self.append(value)

        return self

    def to_enumerable(self) -> 'EnumerableABC':
        r"""Converts :class: `cpl_query.iterable.iterable_abc.IterableABC` to :class: `cpl_query.enumerable.enumerable_abc.EnumerableABC`

        Returns
        -------
            :class: `cpl_query.enumerable.enumerable_abc.EnumerableABC`
        """
        from cpl_query.enumerable.enumerable import Enumerable
        return Enumerable(self._type, self.to_list())