import os
import re
from modpack_changelogger import generate_changelog


def extract_version(filename):
    match = re.search(r"(\d+\.\d+\.\d+)", filename)
    if match:
        return tuple(map(int, match.group(1).split(".")))
    return (0, 0, 0)


directory = "mrpack"
changelog_directory = "changelogs"
files = [f for f in os.listdir(directory) if f.endswith(".mrpack")]
print(f"Found mrpack files: {files}")

files_sorted = sorted(files, key=lambda f: extract_version(f), reverse=True)

if len(files_sorted) > 1:
    newest_file = files_sorted[0]
    previous_file = files_sorted[1]
    print(f"Generating changelog for {previous_file} -> {newest_file}")
    newest_version = ".".join(map(str, extract_version(newest_file)))

    changelog_filename = f"changelog_{newest_version}.md"

    generate_changelog(
        f"{directory}/{previous_file}",
        f"{directory}/{newest_file}",
        None,
        f"{changelog_directory}/{changelog_filename}",
    )

    print(f"Changelog generated: {changelog_directory}/{changelog_filename}")
else:
    print("Not enough .mrpack files found in the directory to generate a changelog.")