import logging
from services.similarity import cosine_lists

logger = logging.getLogger(__name__)


class Headline:
    display_text: str
    normalized_text: list[str]

    def __init__(self, display_text: str, normalized_text: list[str]):
        self.display_text = display_text
        self.normalized_text = normalized_text
        logger.debug("Initialized Headline instance (display_text=%r, token_count=%d): %s",
                     self.display_text, len(self.normalized_text), self.normalized_text)

    def compare_headlines(self, other_headline):
        if not isinstance(other_headline, Headline):
            logger.warning("Comparing Headline %r with incompatible object of type %s: %r",
                           self.display_text, type(other_headline).__name__, other_headline)
        logger.debug("Comparing Headline %r against %r",
                     self.display_text, getattr(other_headline, 'display_text', repr(other_headline)))

        try:
            score = cosine_lists(self.normalized_text, other_headline.normalized_text)
            logger.debug("Headline comparison score: %.4f between %r and %r",
                         score, self.display_text, getattr(other_headline, 'display_text', repr(other_headline)))
            return score
        except Exception as e:
            logger.error("Error comparing headlines (%r vs %r): %s",
                         self.display_text, getattr(other_headline, 'display_text', repr(other_headline)), e, exc_info=True)
            raise