src/rule_based_system/TextLengthRule.py

from src.rule_based_system.Rule import Rule
from src.rule_based_system.Verdict import Verdict

TEXT_SIZE_LIMIT = 500


class TextLengthRule(Rule):

    def get_verdict(self, comment_text: str) -> Verdict:
        allows = True \
            and not self.is_empty(comment_text) \
            and not self.is_too_long(comment_text, TEXT_SIZE_LIMIT)

        return Verdict(allows, [])

    @staticmethod
    def is_empty(text):
        return len(text) == 0

    @staticmethod
    def is_too_long(text, limit):
        return len(text) > limit

    def is_strict(self) -> bool:
        return True

    @staticmethod
    def get_rule_description() -> str:
        return 'Inappropriate text length'