import json
import requests
import datetime
from cvp_checks import utils


def test_elasticsearch_cluster(local_salt_client):
    salt_output = local_salt_client.cmd(
        'elasticsearch:client',
        'pillar.get',
        ['_param:haproxy_elasticsearch_bind_host'],
        expr_form='pillar')
    for node in salt_output.keys():
        IP = salt_output[node]
        assert requests.get('http://{}:9200/'.format(IP)).status_code == 200, \
            'Cannot check elasticsearch url on {}.'.format(IP)
        resp = requests.get('http://{}:9200/_cat/health'.format(IP)).content
        assert resp.split()[3] == 'green', \
            'elasticsearch status is not good {}'.format(
            json.dumps(resp, indent=4))
        assert resp.split()[4] == '3', \
            'elasticsearch status is not good {}'.format(
            json.dumps(resp, indent=4))
        assert resp.split()[5] == '3', \
            'elasticsearch status is not good {}'.format(
            json.dumps(resp, indent=4))
        assert resp.split()[10] == '0', \
            'elasticsearch status is not good {}'.format(
            json.dumps(resp, indent=4))
        assert resp.split()[13] == '100.0%', \
            'elasticsearch status is not good {}'.format(
            json.dumps(resp, indent=4))


def test_elasticsearch_node_count(local_salt_client):
    now = datetime.datetime.now()
    today = now.strftime("%Y.%m.%d")
    active_nodes = utils.get_active_nodes()
    salt_output = local_salt_client.cmd(
        'elasticsearch:client',
        'pillar.get',
        ['_param:haproxy_elasticsearch_bind_host'],
        expr_form='pillar')
    IP = salt_output.values()[0]
    resp = requests.post('http://{0}:9200/log-{1}/_search?pretty'.
                         format(IP, today), data='{"size": 500, "aggs": '
                         '{"group_by_hostname": {"terms": {"size": 500, '
                         '"field": "Hostname"}}}}').text
    # TODO
    # we should check every node in output, not simply # of entries
    assert resp.count('"key"') > len(active_nodes), \
        'Not all nodes are in Elasticsearch. Found {0} keys, ' \
        'expected {1}.'.format(resp.count('"key"'), len(active_nodes))


def test_stacklight_services_replicas(local_salt_client):
    salt_output = local_salt_client.cmd(
        'docker:client:stack:monitoring',
        'cmd.run',
        ['docker service ls'],
        expr_form='pillar')
    wrong_items = []
    for line in salt_output[salt_output.keys()[0]].split('\n'):
        if line[line.find('/') - 1] != line[line.find('/') + 1] \
           and 'replicated' in line:
            wrong_items.append(line)
    assert len(wrong_items) == 0, \
        '''Some monitoring services doesn't have expected number of replicas:
              {}'''.format(json.dumps(wrong_items, indent=4))


def test_prometheus_alert_count(local_salt_client):
    IP = utils.get_monitoring_ip('cluster_public_host')
    # keystone:server can return 3 nodes instead of 1
    # this will be fixed later
    # TODO
    nodes_info = local_salt_client.cmd(
        'keystone:server',
        'cmd.run',
        ['curl -s http://{}:15010/alerts | grep icon-chevron-down | '
         'grep -v "0 active"'.format(IP)],
        expr_form='pillar')
    result = nodes_info[nodes_info.keys()[0]].replace('</td>', '').replace(
        '<td><i class="icon-chevron-down"></i> <b>', '').replace('</b>', '')
    assert result == '', 'AlertManager page has some alerts! {}'.format(
                         json.dumps(result), indent=4)


def test_stacklight_containers_status(local_salt_client):
    salt_output = local_salt_client.cmd(
        'docker:swarm:role:master',
        'cmd.run',
        ['docker service ps $(docker stack services -q monitoring)'],
        expr_form='pillar')
    result = {}
    # for old reclass models, docker:swarm:role:master can return
    # 2 nodes instead of one. Here is temporary fix.
    # TODO
    if len(salt_output.keys()) > 1:
        if 'CURRENT STATE' not in salt_output[salt_output.keys()[0]]:
            del salt_output[salt_output.keys()[0]]
    for line in salt_output[salt_output.keys()[0]].split('\n')[1:]:
        shift = 0
        if line.split()[1] == '\\_':
            shift = 1
        if line.split()[1 + shift] not in result.keys():
            result[line.split()[1]] = 'NOT OK'
        if line.split()[4 + shift] == 'Running' \
           or line.split()[4 + shift] == 'Ready':
            result[line.split()[1 + shift]] = 'OK'
    assert 'NOT OK' not in result.values(), \
        '''Some containers are in incorrect state:
              {}'''.format(json.dumps(result, indent=4))