import click
import os

from zope import component
from ceo_common.interfaces import IConfig

from ..utils import http_post, http_get
from .utils import handle_sync_response, check_file_path


def mysql_create_info_file(file, username, password):
    cfg_srv = component.getUtility(IConfig)
    mysql_host = cfg_srv.get('mysql_host')
    info = f"""MySQL Database Information for {username}

    Your new MySQL database was created. To connect, use the following options:

    Database: {username}
    Username: {username}
    Password: {password}
    Host: {mysql_host}

    On {mysql_host} to connect using the MySQL command-line client use

      mysql {username} -u {username} -p

    From other CSC machines you can connect using

      mysql {username} -h {mysql_host} -u {username} -p

    """
    with click.open_file(file, "w") as f:
        f.write(info)
    os.chown(file, username, username)
    os.chmod(file, 0o640)


@click.group(short_help='Perform operations on MySQL')
def mysql():
    pass


@mysql.command(short_help='Create a MySQL database for a user')
@click.argument('username')
def create(username):
    resp = http_get(f'/api/members/{username}')
    result = handle_sync_response(resp)
    info_file_path = os.path.join(result['home_directory'], "ceo-mysql-info")

    check_file_path(info_file_path)

    resp = http_post(f'/api/db/mysql/{username}')
    result = handle_sync_response(resp)
    password = result['password']

    mysql_create_info_file(info_file_path, username, password)

    click.echo(f"""
    MySQL database {username} with password {password} has been created
    This password and more details have been written to {info_file_path}""")


@mysql.command(short_help='Reset the password of a MySQL user')
@click.argument('username')
def pwreset(username):
    resp = http_get(f'/api/members/{username}')
    result = handle_sync_response(resp)
    info_file_path = os.path.join(result['home_directory'], "ceo-mysql-info")

    check_file_path(info_file_path)

    resp = http_post(f'/api/db/mysql/{username}/pwreset')
    result = handle_sync_response(resp)
    password = result['password']

    mysql_create_info_file(info_file_path, username, password)

    click.echo(f"""
    MySQL database {username} now has the password {password}
    This password and more details have been written to {info_file_path}""")