# ~*~ coding: utf-8 ~*~
import os

from django.utils.translation import ugettext_lazy as _

from common.utils import get_logger, get_object_or_none
from common.tasks import send_mail_async
from orgs.utils import org_aware_func

from .models import Task, AdHoc

logger = get_logger(__file__)

DEFAULT_TASK_OPTIONS = {
    'timeout': 10,
    'forks': 10,
}


def get_task_by_id(task_id):
    return get_object_or_none(Task, id=task_id)


@org_aware_func("hosts")
def update_or_create_ansible_task(
        task_name, hosts, tasks,
        interval=None, crontab=None, is_periodic=False,
        callback=None, pattern='all', options=None,
        run_as_admin=False, run_as=None, become_info=None,
    ):
    if not hosts or not tasks or not task_name:
        return None, None
    if options is None:
        options = DEFAULT_TASK_OPTIONS
    defaults = {
        'name': task_name,
        'interval': interval,
        'crontab': crontab,
        'is_periodic': is_periodic,
        'callback': callback,
    }

    created = False
    task, ok = Task.objects.update_or_create(
        defaults=defaults, name=task_name
    )
    adhoc = task.get_latest_adhoc()
    new_adhoc = AdHoc(task=task, pattern=pattern,
                      run_as_admin=run_as_admin,
                      run_as=run_as)
    new_adhoc.tasks = tasks
    new_adhoc.options = options
    new_adhoc.become = become_info

    hosts_same = True
    if adhoc:
        old_hosts = set([str(asset.id) for asset in adhoc.hosts.all()])
        new_hosts = set([str(asset.id) for asset in hosts])
        hosts_same = old_hosts == new_hosts

    if not adhoc or not adhoc.same_with(new_adhoc) or not hosts_same:
        logger.debug(_("Update task content: {}").format(task_name))
        new_adhoc.save()
        new_adhoc.hosts.set(hosts)
        task.latest_adhoc = new_adhoc
        created = True
    return task, created


def send_server_performance_mail(path, usage, usages):
    from users.models import User
    subject = _("Disk used more than 80%: {} => {}").format(path, usage.percent)
    message = subject
    admins = User.objects.filter(role=User.ROLE.ADMIN)
    recipient_list = [u.email for u in admins if u.email]
    logger.info(subject)
    send_mail_async(subject, message, recipient_list, html_message=message)


def get_task_log_path(base_path, task_id, level=2):
    task_id = str(task_id)
    rel_path = os.path.join(*task_id[:level], task_id + '.log')
    path = os.path.join(base_path, rel_path)
    os.makedirs(os.path.dirname(path), exist_ok=True)
    return path