from dataclasses import dataclass
from core.tokenizer import TokenKind, Keywords


@dataclass()
class Node:
    pass


@dataclass()
class NopNode(Node):
    pass

    def __repr__(self):
        return "nop"


class NotInitializedNode(Node):
    pass

    def __repr__(self):
        return "**N/A**"


@dataclass()
class ErrorNode(Node):
    pass


class BaseParser:
    PREFIX = "Parsers:"

    def __init__(self, name):
        self.name = self.PREFIX + name
        self.has_error = False
        self.error_sink = []

    def __eq__(self, other):
        if not isinstance(other, self.__class__):
            return False
        return self.name == other.name

    def __hash__(self):
        return hash(self.name)

    def parse(self, context, text):
        pass

    @staticmethod
    def get_text_from_tokens(tokens):
        if tokens is None:
            return ""
        res = ""

        if not hasattr(tokens, "__iter__"):
            tokens = [tokens]

        for token in tokens:
            value = Keywords(token.value).value if token.type == TokenKind.KEYWORD else token.value
            res += value
        return res

    @staticmethod
    def log_result(log, text, ret):
        if ret.status:
            log.debug(f"Recognized '{text}' as {ret.value}")
        else:
            log.debug(f"Failed to recognize '{text}'")