from __future__ import unicode_literals
from django.conf import settings
from random import randint
from jinja2 import Environment, PackageLoader, select_autoescape
import os
import socket
import time

'''
'''
def randomize_port():
    ports = settings.ODOO_PORTS_RANGE
    port = 0

    while not check_port(port):
        time.sleep(1)
        port = randint(ports[0], ports[1])

    return port
    
    
'''
'''
def check_port(port=0):
    if port == 0:
        return False

    ok = False
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    try:
        s.bind((settings.DOCKER_NETWORK, port))
        ok = True
    except socket.error:
        ok = False
    
    s.close()
    return ok

'''
'''
def check_name(name=None):
    if not name:
        return False

    full_path = os.path.join(settings.ODOO_ROOT_PATH, name)
    return os.path.exists(full_path)

'''
'''
def create_folders(name=None):
    if not name:
        return False

    folders = settings.ODOO_DEFAULT_FOLDERS
    for folder in folders:
        full_path = os.path.join(settings.ODOO_ROOT_PATH, name, folder)
        os.makedirs(full_path)
        time.sleep(1)

'''
'''
def create_configuration(name=None):
    if not name:
        return False

    conf_path = os.path.join(settings.ODOO_ROOT_PATH, name, 'config')

    if not os.path.exists(conf_path):
        return False

    env = Environment(
        loader=PackageLoader('api', 'templates'),
        autoescape=select_autoescape(['j2'])
    )

    template = env.get_template(settings.ODOO_CONF_FILENAME + '.j2')

    template_rendered = template.stream({
        'admin_password': settings.ODOO_ADMIN_PASSWORD, 
        'db_name': name, 
        'db_user': settings.ODOO_DB_USER, 
        'db_password': settings.ODOO_DB_PASSWORD
    })

    template_rendered.dump(os.path.join(conf_path, settings.ODOO_CONF_FILENAME + '.conf'))

    return True