# coding: utf-8

from jasset.models import *
from jumpserver.api import *
import uuid
import re
from ansible.playbook import PlayBook
from ansible import callbacks, utils

from jumpserver.models import Setting


def get_object_list(model, id_list):
    """根据id列表获取对象列表"""
    object_list = []
    for object_id in id_list:
        if object_id:
            object_list.extend(model.objects.filter(id=int(object_id)))

    return object_list


def get_rand_file_path(base_dir=os.path.join(BASE_DIR, 'tmp')):
    """获取随机文件路径"""
    filename = uuid.uuid1().hex
    return os.path.join(base_dir, filename)


def get_inventory(host_group):
    """生成资产表库存清单"""
    path = get_rand_file_path()
    f = open(path, 'w')
    for group, host_list in host_group.items():
        f.write('[%s]\n' % group)
        for ip in host_list:
            asset = get_object(Asset, ip=ip)
            if asset.use_default:
                f.write('%s\n' % ip)
            else:
                f.write('%s ansible_ssh_port=%s ansible_ssh_user=%s ansible_ssh_pass=%s\n' %
                        (ip, asset.port, asset.username, CRYPTOR.decrypt(asset.password)))
    f.close()
    return path


def get_playbook(template, var):
    """根据playbook模板，生成playbook"""
    str_playbook = open(template).read()
    for k, v in var.items():
        str_playbook = re.sub(r'%s' % k, v, str_playbook)  # 正则来替换传入的字符
    path = get_rand_file_path()
    f = open(path, 'w')
    f.write(str_playbook)
    return path


def playbook_run(inventory, playbook, settings):
    stats = callbacks.AggregateStats()
    playbook_cb = callbacks.PlaybookCallbacks(verbose=utils.VERBOSITY)
    runner_cb = callbacks.PlaybookRunnerCallbacks(stats, verbose=utils.VERBOSITY)
    # run the playbook
    if settings:
        playbook = PlayBook(host_list=inventory,
                            playbook=playbook,
                            forks=5,
                            remote_user=settings.default_user,
                            remote_port=settings.default_port,
                            private_key_file=settings.default_pri_key_path,
                            callbacks=playbook_cb,
                            runner_callbacks=runner_cb,
                            stats=stats,
                            become=True,
                            become_user='root')
    else:
        playbook = PlayBook(host_list=inventory,
                            playbook=playbook,
                            forks=5,
                            callbacks=playbook_cb,
                            runner_callbacks=runner_cb,
                            stats=stats,
                            become=True,
                            become_user='root')

    results = playbook.run()
    results_r = {'unreachable': [], 'failures': [], 'success': []}
    for hostname, result in results.items():
        if result.get('unreachable', 2):
            results_r['unreachable'].append(hostname)
            print "%s >>> unreachable" % hostname
        elif result.get('failures', 2):
            results_r['failures'].append(hostname)
            print "%s >>> Failed" % hostname
        else:
            results_r['success'].append(hostname)
            print "%s >>> Success" % hostname

    return results_r


def perm_user_api(perm_info):
    """
    用户授权api，通过调用ansible API完成用户新建等,传入参数必须如下,列表中可以是对象，也可以是用户名和ip
    perm_info = {'del': {'users': [],
                         'assets': [],
                        },
                 'new': {'users': [],
                         'assets': []}}
    """
    try:
        new_users = perm_info['new']['users']
        new_assets = perm_info['new']['assets']
        del_users = perm_info['del']['users']
        del_assets = perm_info['del']['assets']
    except IndexError:
        raise ServerError("Error: function perm_user_api传入参数错误")

    # 检查传入的是字符串还是对象
    check_users = new_users + del_users
    try:
        if isinstance(check_users[0], str):
            var_type = 'str'
        else:
            var_type = 'obj'

    except IndexError:
        raise ServerError("Error: function perm_user_api传入参数错误")

    print new_assets, del_assets
    print new_users, del_users
    try:
        if var_type == 'str':
            new_ip = new_assets
            del_ip = del_assets
            new_username = new_users
            del_username = del_users
        else:
            new_ip = [asset.ip for asset in new_assets if isinstance(asset, Asset)]
            del_ip = [asset.ip for asset in del_assets if isinstance(asset, Asset)]
            new_username = [user.username for user in new_users if isinstance(user, User)]
            del_username = [user.username for user in del_users if isinstance(user, User)]
    except IndexError:
        raise ServerError("Error: function perm_user_api传入参数类型错误")

    print new_ip, del_ip
    print new_username, del_username

    host_group = {'new': new_ip, 'del': del_ip}
    inventory = get_inventory(host_group)

    the_new_users = ','.join(new_username)
    the_del_users = ','.join(del_username)

    playbook = get_playbook(os.path.join(BASE_DIR, 'playbook', 'user_perm.yaml'),
                            {'the_new_group': 'new', 'the_del_group': 'del',
                             'the_new_users': the_new_users, 'the_del_users': the_del_users,
                             'the_pub_key': '/tmp/id_rsa.pub'})

    settings = get_object(Setting, name='default')
    results_r = playbook_run(inventory, playbook, settings)
    return results_r


def refresh_group_api(user_group=None, asset_group=None):
    """用户组添加删除用户，主机组添加删除主机触发"""
    pass