import base64
import json
import logging
import pytest
import requests_mock

CONF = {
    "openstack": {
        "keystone": {
            "url": "http://keystone:5000/v3",
            "user": "admin",
            "check_token": False,
            "password": "p4ssw0rd",
            "domain": "default",
            "certificate": False,
            "project": "admin"
        }
    },
    "components": {
        "wrapper": {
            "bind": "0.0.0.0",
            "port": 8080,
            "container": "wukongsun/moon_wrapper:v4.3",
            "timeout": 5,
            "hostname": "wrapper"
        },
        "manager": {
            "bind": "0.0.0.0",
            "port": 8082,
            "container": "wukongsun/moon_manager:v4.3",
            "hostname": "manager"
        },
        "port_start": 31001,
        "orchestrator": {
            "bind": "0.0.0.0",
            "port": 8083,
            "container": "wukongsun/moon_orchestrator:v4.3",
            "hostname": "orchestrator"
        },
        "pipeline": {
            "interface": {
                "bind": "0.0.0.0",
                "port": 8080,
                "container": "wukongsun/moon_interface:v4.3",
                "hostname": "interface"
            },
            "authz": {
                "bind": "0.0.0.0",
                "port": 8081,
                "container": "wukongsun/moon_authz:v4.3",
                "hostname": "authz"
            },
        }
    },
    "logging": {
        "handlers": {
            "file": {
                "filename": "/tmp/moon.log",
                "class": "logging.handlers.RotatingFileHandler",
                "level": "DEBUG",
                "formatter": "custom",
                "backupCount": 3,
                "maxBytes": 1048576
            },
            "console": {
                "class": "logging.StreamHandler",
                "formatter": "brief",
                "level": "INFO",
                "stream": "ext://sys.stdout"
            }
        },
        "formatters": {
            "brief": {
                "format": "%(levelname)s %(name)s %(message)-30s"
            },
            "custom": {
                "format": "%(asctime)-15s %(levelname)s %(name)s %(message)s"
            }
        },
        "root": {
            "handlers": [
                "console"
            ],
            "level": "ERROR"
        },
        "version": 1,
        "loggers": {
            "moon": {
                "handlers": [
                    "console",
                    "file"
                ],
                "propagate": False,
                "level": "DEBUG"
            }
        }
    },
    "slave": {
        "name": None,
        "master": {
            "url": None,
            "login": None,
            "password": None
        }
    },
    "docker": {
        "url": "tcp://172.88.88.1:2376",
        "network": "moon"
    },
    "database": {
        "url": "sqlite:///database.db",
        # "url": "mysql+pymysql://moon:p4sswOrd1@db/moon",
        "driver": "sql"
    },
    "messenger": {
        "url": "rabbit://moon:p4sswOrd1@messenger:5672/moon"
    },
}

COMPONENTS = (
    "logging",
    "openstack/keystone",
    "database",
    "slave",
    "components/manager",
    "components/orchestrator"
)

PODS = {
    "pods": {
        "721760dd-de5f-11e7-8001-3863bbb766f3": [
            {
                "pdp_id": "b3d3e18abf3340e8b635fd49e6634ccd",
                "port": 8080,
                "genre": "interface",
                "name": "interface-paltry",
                "keystone_project_id": "a64beb1cc224474fb4badd43173e7101",
                "namespace": "moon",
                "container": "wukongsun/moon_interface:v4.3"
            },
            {
                "pdp_id": "b3d3e18abf3340e8b635fd49e6634ccd",
                "meta_rule_id": "f8f49a779ceb47b3ac810f01ef71b4e0",
                "port": 8081,
                "genre": "authz",
                "name": "authz-economic",
                "policy_id": "f8f49a779ceb47b3ac810f01ef71b4e0",
                "keystone_project_id": "a64beb1cc224474fb4badd43173e7101",
                "namespace": "moon",
                "container": "wukongsun/moon_authz:v4.3"
            }
        ]
    }
}

SLAVES = {
    "slaves": [
        {
            "context":
                {
                    "cluster": "kubernetes",
                    "user": "kubernetes-admin"
                },
            "name": "kubernetes-admin@kubernetes",
            "configured": True,
            "wrapper_name": "mywrapper",
            "ip": "NC",
            "port": 31002,
            "internal_port": 8080
        }
    ]
}


def get_b64_conf(component=None):
    if component in CONF:
        return base64.b64encode(
            json.dumps(
                CONF[component]).encode('utf-8') + b"\n").decode('utf-8')
    elif "/" in component:
        key1, _, key2 = component.partition("/")
        return base64.b64encode(
            json.dumps(
                CONF[key1][key2]).encode('utf-8') + b"\n").decode('utf-8')
    else:
        return base64.b64encode(
            json.dumps(CONF).encode('utf-8') + b"\n").decode('utf-8')


@pytest.fixture(autouse=True)
def no_requests(monkeypatch):
    """ Modify the response from Requests module
    """
    with requests_mock.Mocker(real_http=True) as m:
        for component in COMPONENTS:
            m.register_uri(
                'GET', 'http://consul:8500/v1/kv/{}'.format(component),
                json=[{'Key': component, 'Value': get_b64_conf(component)}]
            )
        m.register_uri(
            'POST', 'http://keystone:5000/v3/auth/tokens',
            headers={'X-Subject-Token': "111111111"}
        )
        m.register_uri(
            'DELETE', 'http://keystone:5000/v3/auth/tokens',
            headers={'X-Subject-Token': "111111111"}
        )

        def match_request_text(request):
            # request.url may be None, or '' prevents a TypeError.
            return 'http://keystone:5000/v3/users?name=testuser' in request.url

        m.register_uri(
            requests_mock.ANY, '/v3/users',
            additional_matcher=match_request_text,
            json={"users": {}}
        )
        m.register_uri(
            'POST', 'http://keystone:5000/v3/users/',
            json={"users": [{"id": "1111111111111"}]}
        )
        m.register_uri(
            'POST', 'http://orchestrator:8083/pods',
            json=PODS,
            headers={"content-type": "application/json"}
        )
        m.register_uri(
            'GET', 'http://orchestrator:8083/pods',
            json=PODS
        )
        m.register_uri(
            'GET', 'http://localhost/slaves',
            json=SLAVES
        )
        m.register_uri(
            'DELETE', 'http://orchestrator:8083/pods/{}'.format(list([PODS['pods'].keys()])[0]),
            headers={"content-type": "application/json"}
        )

        print("Start populating the DB.")
        from python_moondb.db_manager import init_engine, main
        engine = init_engine()
        print("engine={}".format(engine))
        main("upgrade", logging.getLogger("db_manager"), engine)
        print("End populating the DB.")
        yield m

# @pytest.fixture(autouse=True, scope="session")
# def manage_database():
#     from moon_db.db_manager import init_engine, run
#     engine = init_engine()
#     run("upgrade", logging.getLogger("db_manager"), engine)
#     yield
#     print("Will close the DB")