# This script defines a Jupyter Notebook cell magic that appends the content of a cell to a specified file.
# It can also run the script after appending and reset the stored cells.

import hashlib
from IPython.core.magic import register_cell_magic

_cell_store = {}

def load_ipython_extension(ipython):
    ipython.register_magic_function(append_to_script, 'cell')

def append_to_script(line, cell):
    parts = line.strip().split()
    if not parts:
        return  # Silently ignore if no filename is provided

    filename = parts[0]
    run = "--run" in parts
    reset = "--reset" in parts

    cell_hash = hashlib.md5(cell.encode('utf-8')).hexdigest()

    if reset:
        _cell_store.clear()

    _cell_store[cell_hash] = cell.rstrip()

    full_script = "\n\n".join(_cell_store.values()) + "\n"

    with open(filename, "w") as f:
        f.write(full_script)

    if run:
        exec(cell, globals())