# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.conf import settings
from docker import DockerClient
from docker.errors import DockerException, NotFound, APIError, ContainerError, ImageNotFound
import time

'''
'''
def get_docker_client():
    try:
        return DockerClient(base_url='unix:/%s' % settings.DOCKER_SOCK_DIR)
    except DockerException:
        return None

'''
'''
def get_all_images():
    client = get_docker_client()

    images = []

    if not client:
        return images

    for image in client.images.list():
        images.append({
            'id': image.id,
            'short_id': image.short_id,
            'tags': image.tags
        })

    return images

'''
'''
def get_all_containers():
    client = get_docker_client()

    containers = []

    if not client:
        return containers

    for container in client.containers.list(all=True):
        containers.append({
            'id': container.id,
            'short_id': container.short_id,
            'name': container.name,
            'image': container.image,
            'labels': container.labels,
            'status': container.status,
            'attrs': container.attrs
        })
        
    return containers

'''
'''
def run_container(image=None, name=None, ports=[], volumes=None, net=None):
    if not name:
        return False

    client = get_docker_client()

    if not client:
        return False

    try:
        client.containers.run(image, None, name=name, detach=True, ports=ports, volumes=volumes, network=net)
        return True
    except (ContainerError, ImageNotFound, APIError):
        return False

'''
'''
def start_container(id=None):
    if not id:
        return None

    client = get_docker_client()

    if not client:
        return None

    try:
        container = client.containers.get(id)
        container.start()

        time.sleep(1)

        container.reload()

        return {
            'id': container.id,
            'short_id': container.short_id,
            'name': container.name,
            'image': container.image,
            'labels': container.labels,
            'status': container.status
        }
    except (NotFound, APIError):
        return None

'''
'''
def restart_container(id=None):
    if not id:
        return None

    client = get_docker_client()

    if not client:
        return None

    try:
        container = client.containers.get(id)
        container.restart()

        time.sleep(1)

        container.reload()

        return {
            'id': container.id,
            'short_id': container.short_id,
            'name': container.name,
            'image': container.image,
            'labels': container.labels,
            'status': container.status
        }
    except (NotFound, APIError):
        return None

'''
'''
def stop_container(id=None):
    if not id:
        return None

    client = get_docker_client()

    if not client:
        return None

    try:
        container = client.containers.get(id)
        container.stop()

        time.sleep(1)

        container.reload()

        return {
            'id': container.id,
            'short_id': container.short_id,
            'name': container.name,
            'image': container.image,
            'labels': container.labels,
            'status': container.status
        }
    except (NotFound, APIError):
        return None

'''
'''
def execute_command(container_id_or_name=None, command=None):
    if not container_id_or_name or not command:
        return None

    client = get_docker_client()

    if not client:
        return None

    try:
        container = client.containers.get(container_id_or_name)
        (exit_code, unused_output) = container.exec_run(command)
        return (False, True)[exit_code == 0]
    except (NotFound, APIError):
        return None

'''
'''
def copy_in(container_id_or_name=None, path=None, tarfile=None):
    if not container_id_or_name or not path or not tarfile:
        return False

    client = get_docker_client()

    if not client:
        return False

    try:
        file = open(tarfile, 'r')
        container = client.containers.get(container_id_or_name)
        result = container.put_archive(path, file)
        file.close()
        return result
    except (NotFound, APIError, IOError):
        return False