import argparse
import re


def split_paragraphs_awfully(line: str) -> str:
    num_separators = 20
    done = False
    split_lines = []
    index = 0
    while not done:
        splita = line.split(' ')
        if len(splita[index:index+num_separators]) < num_separators:
            done = True
        split_lines.append(' '.join(splita[index:index+num_separators]))
        index = index + num_separators
    return '\n            '.join(split_lines)

def sub_header(match) -> str:
    return f"""<sectionhead>{match.group(1)}</sectionhead>"""


def sub_link(match) -> str:
    return f"""<a href="{match.group(2)}">{match.group(1)}</a> <a href="https://nullbrook.org/web/{match.group(2)}"><sup>mirror</sup></a>"""


def sub_img(match) -> str:
    return f"""
        <center>
            <a href="https://wol.fm/img/{match.group(1)}">
                <img src="https://wol.fm/img/thumb_{match.group(1)}"/>
            </a>
        </center>"""

def sub_italics(match) -> str:
    return f"""<i>{match.group(1)}</i>"""

def format_paragraph(paragraph: str) -> str:
    return f"""
        <p>
            {split_paragraphs_awfully(paragraph)}        </p>"""

def main(input_file: str, output_file: str):
    with open(input_file, 'r') as f:
        file = f.readlines()
        for line in file:
            line = re.sub(r"\#\# (.*)", sub_header, line)
            if len(line) > 5 and line[0] != "!" and line[0] != "<":
                line = format_paragraph(line)

            
            line = re.sub(r"\*(.*)\*]", sub_italics, line)
            line = re.sub(r"\!\[\[(.*)\]\]", sub_img, line)
            line = re.sub(r"\[(.*?)\]\((.*?)\)", sub_link, line)
            print(line)

if __name__ == '__main__':
    parser = argparse.ArgumentParser(
                prog='Obsidian to HTML',
                description='Converts an obsidian markdown file to html for the blog',
                )
    parser.add_argument('input_file')
    parser.add_argument('output_file')
    args = parser.parse_args()
    main(args.input_file, args.output_file)