import argparse
from os import fdopen, path
import os
import re
import shutil
from sys import argv
import tempfile

def main():
    original_recipe = path.abspath(argv[1])
    original_meta = path.join(original_recipe, "meta.yaml")    
    new_fd, new_file_path = tempfile.mkstemp()
    with fdopen(new_fd, "w") as new_file_handle:
        with open(original_meta, "r") as original_file_handle:
            for line in original_file_handle:
                matches = re.finditer(r"\{\{\s*name\|lower()\s+\}\}", line)
                modified_line = line
                for match in matches:
                    modified_line = modified_line[:match.start(1)] + r'|replace(".", "-")' + modified_line[match.end(1):]
                new_file_handle.write(modified_line)
    shutil.move(new_file_path, original_meta)
    new_recipe_name = path.join(
                    path.dirname(original_recipe),
                    path.basename(original_recipe).replace(".", "-").lower())
    shutil.rmtree(new_recipe_name, ignore_errors=True)
    os.replace(original_recipe, 
                new_recipe_name)

if __name__ == "__main__":
    main()