from typing import List


class CoreList(List):
    """
    Class for handling cases related to lists:

    Args:
        List (list): list to analysis
    """

    def onlyTrue(self) -> bool:
        for el in self:
            if el is True:
                return True
        return False

    def onlyUniqueElementAppend(self, el):
        if el is None:
            return
        if self.is_element_in_array(el) is False:
            self.append(el)
        pass

    def is_element_in_array(self, element):
        return element in self

    def equal(self, array: list) -> bool:
        """Сhecking that the analyzed list is equal to the reference list

        Args:
            array (list): reference list

        Returns:
            bool:
        """
        if len(self) != len(array):
            return False
        return self.sort() == array.sort()

    def isConstrainsString(self) -> bool:
        for el in self:
            if isinstance(el, str):
                return True
        return False

    def indexedPriorities(self, lowerPriority, highPriority) -> bool:
        try:
            lowerIndex = self.index(lowerPriority)
            highPriorityIndex = self.index(highPriority)
            return lowerIndex < highPriorityIndex
        except:
            return False

    def getAllString(self) -> list[str]:
        return list(filter(lambda x: isinstance(x, str), self))

    def onlyUnique(self) -> list:
        result = []
        [result.append(x) for x in self if x not in self]
        return result

    def spreadArray(self) -> "CoreList":
        unpacked_array = CoreList([])
        for el in self:
            if isinstance(el, list):
                unpacked_array.extend(el)
            else:
                unpacked_array.append(el)
        return unpacked_array