import glob
import os
import sys
from datetime import datetime

import frontmatter

articles = glob.glob("_posts/*.md")
articles.sort(reverse=True)
titles = []

if len(articles) == 0:
    print("No articles found")
    sys.exit(1)

for article in articles:
    fm = frontmatter.load(article)
    titles.append(fm.get("title"))

print("\nAvailable articles:\n")

for index, title in enumerate(titles):
    print(f"\t[{index + 1}] {title}")

print("")

article = ""
selection = ""
index = -1

while index < 0 or index > len(articles):
    try:
        index = int(selection) - 1

        if index == -1:
            sys.exit(0)

        article = articles[index]

    except (ValueError, IndexError):
        selection = input("Enter a number (0 to exit): ")

fm = frontmatter.load(article)
file_date = datetime.fromisoformat(fm.metadata["date"]).strftime("%Y-%m-%d")
del fm.metadata["date"]

with open(
    article.replace(f"_posts/{file_date}-", "_drafts/"),
    mode="w",
    encoding="utf8",
) as file:
    file.write(frontmatter.dumps(fm))

try:
    os.remove(article)
except PermissionError:
    print(f"Permission denied to delete '{article}'.")
except Exception as e:
    print(f"An error occurred: {e}")