import re
from dataclasses import dataclass
from html.parser import HTMLParser
from pathlib import Path

from exclude import EXCLUDED_WORDS

upper_check = re.compile(r'[A-Z]')


@dataclass
class Tag:
    name: str
    score: int


class FileScanner(HTMLParser):
    def __init__(self, file: Path):
        super().__init__()
        self.file = file
        self.texte = []
    
    def scan_file(self):
        content = read_file(self.file)
        self.feed(content)
        
        words_with_usage = {}
        words = []
        for text in self.texte:
            words += re.split(r'[ /\-_#\n]', text)
        print(f'\nFile {self.file.parent.name} contains {len(words)} words')
        title_words = set(self.file.parent.name.split('-'))
        for word in words:
            tag_name = word.strip(".,:;!\"'<>()")
            word = tag_name.lower()
            if not word:
                continue
            score = 10
            if word in EXCLUDED_WORDS:
                score = 0
            if word in title_words:
                score *= 4
            if len(word) <= 3:
                score //= 2
            upper_letters_count = len(upper_check.findall(tag_name))
            score += upper_letters_count * 5
            if word not in words_with_usage:
                words_with_usage[word] = Tag(name=tag_name, score=score)
            else:
                words_with_usage[word].score += score
        sorted_list = sorted(words_with_usage.values(), key=lambda tag: tag.score, reverse=True)
        display_result(sorted_list)
    
    def handle_starttag(self, tag, attrs):
        if tag != "a":
            return
        for attr_name, attr_value in attrs:
            if attr_name == "href":
                self.texte.append(attr_value)
                break
    
    def handle_data(self, data):
        self.texte.append(data)


def display_result(result):
    for tag in result:
        if tag.score <= 10:
            continue
        print(f"Score: {tag.score:>3} Word: {tag.name}")


def read_file(file: Path) -> str:
    with open(file, 'r') as file:
        return file.read()


def main(source=Path('data')):
    for index, file in enumerate(source.glob('**/index.txt')):
        scanner = FileScanner(file)
        scanner.scan_file()
        # if index == 3:
        #     break


if __name__ == '__main__':
    main()