#!/usr/bin/env python3
import re
from dataclasses import dataclass
from datetime import datetime
from typing import List

dateformat = lambda x: x.strftime("%Y-%m-%d %H:%M")
now = datetime.now()

default_slug = lambda x: re.sub(r'[^a-z0-9_]', '', x.lower().replace(' ', '_'))

existing_authors = []

# def scan_metadata():
#     metadata = {}
#     for _, _, files in os.walk('./content'):
#         for file in files:
#             with open(file) as fh:
#                 content = filter(fh.readlines())
# 
# 
# 
# 
# def read_authors():

@dataclass
class ContentMetadata: 
    title: str
    date: str
    modified: str
    tags: List[str]
    category: str
    slug: str
    authors: str
    summary: str

    def __repr__(self):
        return f"""
{self.title}
{'#' * len(self.title)}

:date: {self.date}
:modified: {self.date}
:tags: {', '.join(self.tags)}
:category: {self.category}
:slug: {self.slug}
:authors: {self.authors}
:summary: {self.summary}
"""


def main():
    title = input("Title?")
    date = input(f"Creation date? [{dateformat(now)}]")
    if len(date) == 0:
        date = dateformat(now)

    tags = []
    tag = None
    while tag is None or len(tag) > 0:
        if tag is not None:
            tags.append(tag)

        tag = input("Add tag")

    category = input("Category?")
    slug = input(f"Slug? [{default_slug(title)}]")

    if len(slug) == 0:
        slug = default_slug(title)

    authors = input("Authors?")
    summary = input("Summary?")

    content = ContentMetadata(
        title,
        date,
        date,
        tags,
        category,
        slug,
        authors,
        summary
    )

    with open(f'./{slug}.rst', 'w') as fh:
        fh.write(str(content))




if __name__ == '__main__':
    main()