from anime_downloader.util import is_running
if is_running(regex=r'python|anime|config', expected_matches=3):
    raise Exception('Another instance of "anime config" is already running!')

import os
import click
from tabulate import tabulate
from anime_downloader.config import APP_DIR, Config  # noqa

data = Config._CONFIG


def create_table(_list, previous):
    newList = list(enumerate(_list, 1))
    headers = ['SlNo', f'{previous} settings'.strip()]
    table = tabulate(newList, headers, tablefmt="psql")
    table = "\n".join(table.split("\n")[::-1])
    return table


def traverse_json(data, previous=''):
    click.clear()
    keys = list(data.keys())
    click.echo(create_table(keys, previous))
    val = click.prompt("Select Option", type=int, default=1) - 1

    if isinstance(data[keys[val]], dict):
        traverse_json(data[keys[val]], keys[val])
    else:
        click.echo(f"Current value: {data[keys[val]]}")
        newVal = click.prompt(f"Input new value for {keys[val]}", type=str)

        # Normal strings cause an error
        try:
            newVal = eval(newVal)
        except (SyntaxError, NameError) as e:
            pass

        if not isinstance(newVal, type(data[keys[val]])):
            choice = click.confirm(
                f"{newVal} appears to be of an incorrect type. Continue")

            if not choice:
                exit()
            elif data[keys[val]] is not None:
                try:
                    newVal = type(data[keys[val]])(newVal)
                except TypeError:
                    click.echo(
                        f"'{newVal}' could not be converted to the correct type")
                    exit()

        data[keys[val]] = newVal


def remove_config():
    os.remove(os.path.join(APP_DIR, 'config.json'))


@click.command()
@click.option(
    '--remove',
    '-r',
    is_flag=True,
    help='Delete the config file if this flag is set'
)
def command(remove):
    """
    Presents a list based on the keys in the dictionary.
    If the value of said key is not a dictionary, the user will be able to edit the value.
    """

    if remove:
        remove_config()
    else:
        traverse_json(data)
        Config._CONFIG = data
        Config.write()