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# Copyright (c) Cloud Linux Software, Inc
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENCE.TXT

import json
import base64
import os
import time
import platform
import zlib

from . import kcare
from . import platform_utils
from . import http_utils
from . import utils
from . import constants
from . import auth

if False:  # pragma: no cover
    from typing import Dict, Any  # noqa: F401


def server_info(reason, now=None):
    data = dict()  # type: Dict[str, Any]
    data['ts'] = int(now or time.time())
    data['reason'] = reason

    data['machine'] = platform.machine()
    data['processor'] = platform.processor()
    data['release'] = platform.release()
    data['system'] = platform.system()
    data['version'] = platform.version()

    distro = platform_utils.get_distro()
    data['distro'] = distro[0]
    data['distro_version'] = distro[1]

    data['euname'] = kcare.kcare_uname()
    data['kcare_version'] = utils.strip_version_timestamp(constants.VERSION)
    data['last_stop'] = kcare.get_last_stop()
    data['node'] = platform_utils.get_hostname()
    data['uptime'] = platform_utils.get_uptime()
    data['virt'] = platform_utils.get_virt()
    data['proxy'] = http_utils.proxy_is_used()

    description = kcare.parse_patch_description(kcare.loaded_patch_description())
    data['ltimestamp'] = description['last-update']
    data['patch_level'] = description['patch-level']
    data['patch_type'] = description['patch-type']
    data['kmod'] = kcare.get_current_kmod_version() or ''
    data['crashreporter_ts'] = kcare.crashreporter_latest_event_timestamp()
    data['kdump_status'] = kcare.kdump_status()

    try:
        data['kdump_ts'] = kcare.kdumps_latest_event_timestamp()
    except Exception:
        # Not critical data
        pass

    server_id = auth.get_serverid()
    if server_id:
        data['server_id'] = server_id

    state = kcare.get_state()
    if state is not None:
        data['state'] = state

    return data


def server_lib_info(reason, patch_level, now=None):
    data = dict()  # type: Dict[str, Any]
    data['ts'] = int(now or time.time())
    data['reason'] = reason
    data['patch_level'] = patch_level

    distro = platform_utils.get_distro()
    data['distro'] = distro[0]
    data['distro_version'] = distro[1]
    data['machine'] = platform.machine()

    data['kcare_version'] = utils.strip_version_timestamp(constants.VERSION)
    data['node'] = platform_utils.get_hostname()
    data['uptime'] = platform_utils.get_uptime()
    data['virt'] = platform_utils.get_virt()

    stop_ts = 0.0
    if os.path.exists('/var/lib/libcare/stop'):
        stop_ts = os.path.getctime('/var/lib/libcare/stop')
    data['stop_ts'] = stop_ts

    return data


def based_server_info(reason):
    return utils.nstr(base64.b16encode(utils.bstr(str(server_info(reason)))))


def encode_server_lib_info(info):
    data = json.dumps(info, ensure_ascii=False, separators=(',', ':'))
    return utils.nstr(base64.urlsafe_b64encode(zlib.compress(utils.bstr(data, 'utf-8'))))