import demistomock as demisto  # noqa: F401
from CommonServerPython import *  # noqa: F401

""" IMPORTS """
import urllib3

# disable insecure warnings
urllib3.disable_warnings()

""" GLOBAL VARS """
SERVER_NAME = demisto.params()["server"]
USERNAME = demisto.params()["credentials"]["identifier"]
PASSWORD = demisto.params()["credentials"]["password"]

BASE_URL = SERVER_NAME + "centreon/api/index.php?"
USE_SSL = not demisto.params().get("insecure")
DEFAULT_HEADERS = {"Content-Type": "application/json"}

""" HELPER FUNCTIONS """


def httpRequest(method, urlSuffix, data, headers):  # pragma: no cover
    data = {} if data is None else data

    url = BASE_URL + urlSuffix
    LOG(f"running {method} request with url={url}\theaders={headers}")

    try:
        res = requests.request(method, url, verify=USE_SSL, params=data, headers=headers)
        res.raise_for_status()
        return res.json()

    except Exception as e:
        LOG(e)
        raise e


def httpPost(urlSuffix, data=None, files=None):  # pragma: no cover
    data = {} if data is None else data
    url = BASE_URL + urlSuffix
    LOG(f"running request with url={url}\tdata={data}\tfiles={files}")
    try:
        res = requests.post(url, data=data, verify=USE_SSL)
        res.raise_for_status()
        return res.json()

    except Exception as e:
        LOG(e)
        raise e


def login():
    # retrieves an authentication token from Centreon
    cmd_url = "action=authenticate"
    data = {"username": USERNAME, "password": PASSWORD}
    result = httpPost(cmd_url, data=data)
    return result["authToken"]


def transform_host_vals(key, value):
    # "down" and "unreachable" states can be added here after their value would be known
    host_service_status = {"0": "Up", "4": "Pending"}
    if key == "State" and value in host_service_status:
        return host_service_status[value]
    return value


def to_upper_camel_case(word):
    return "".join(x.capitalize() or "_" for x in word.split("_"))


""" COMMANDS FUNCTIONS """


def get_host_status():
    """Returns the status of the connected hosts."""

    args = demisto.args()
    token = login()
    DEFAULT_HEADERS["centreon-auth-token"] = token
    cmd_url = "object=centreon_realtime_hosts&action=list"
    return httpRequest("GET", cmd_url, args, DEFAULT_HEADERS)


def get_host_status_command():
    """corresponds to 'centreon-get-host-status' command. Brings the status of the connected hosts."""

    response = get_host_status()
    if len(response) == 0:
        return "No Hosts found"

    # changing the keys from underscore notation to UpperCamelCase notation
    camel_case_response = [{to_upper_camel_case(k): v for k, v in dic.items()} for dic in response]
    # for the human readable - only including keys which has values. Also, transforming values from ints to readable text
    list_for_md = [{k: transform_host_vals(k, v) for k, v in dic.items() if v == 0 or v} for dic in camel_case_response]

    entry = {
        "Type": entryTypes["note"],
        "Contents": camel_case_response,
        "ContentsFormat": formats["json"],
        "ReadableContentsFormat": formats["markdown"],
        "HumanReadable": tableToMarkdown("Centreon Hosts status", list_for_md),
        "EntryContext": {"Centreon.Host(val.Id==obj.Id)": camel_case_response},
    }

    return entry


def get_service_status():
    """Returns the status of the connected services."""

    args = demisto.args()
    token = login()
    DEFAULT_HEADERS["centreon-auth-token"] = token
    cmd_url = "object=centreon_realtime_services&action=list"
    return httpRequest("GET", cmd_url, args, DEFAULT_HEADERS)


def get_service_status_command():
    """corresponds to 'centreon-get-service-status' command. Brings the status of the connected services."""

    response = get_service_status()
    if len(response) == 0:
        return "No Services found"

    # changing the keys from underscore notation to UpperCamelCase notation
    camel_case_response = [{to_upper_camel_case(k): v for k, v in dic.items()} for dic in response]
    # for the human readable - only including keys which has values. Also, transforming values from ints to readable text
    list_for_md = [{k: transform_host_vals(k, v) for k, v in dic.items() if v == 0 or v} for dic in camel_case_response]

    entry = {
        "Type": entryTypes["note"],
        "Contents": camel_case_response,
        "ContentsFormat": formats["json"],
        "ReadableContentsFormat": formats["markdown"],
        "HumanReadable": tableToMarkdown("Centreon Services status", list_for_md),
        "EntryContext": {"Centreon.Service(val.ServiceId==obj.ServiceId)": camel_case_response},
    }

    return entry


""" EXECUTION CODE """
LOG(f"command is {demisto.command()}")
try:
    handle_proxy()
    if demisto.command() == "test-module":
        # This is the call made when pressing the integration test button.
        if get_host_status():
            demisto.results("ok")
        else:
            demisto.results("test failed")
    elif demisto.command() == "centreon-get-host-status":
        demisto.results(get_host_status_command())
    elif demisto.command() == "centreon-get-service-status":
        demisto.results(get_service_status_command())

except Exception as e:
    LOG(str(e))
    LOG.print_log()
    raise