#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (C) 2019 tribe29 GmbH - License: GNU General Public License v2
# This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
# conditions defined in the file COPYING, which is part of this source code package.

# NOTE: Careful when replacing the *-import below with a more specific import. This can cause
# problems because it might remove variables from the check-context which are necessary for
# resolving legacy discovery results such as [("SUMMARY", "diskstat_default_levels")]. Furthermore,
# it might also remove variables needed for accessing discovery rulesets.
from cmk.base.check_legacy_includes.aws import *  # pylint: disable=wildcard-import,unused-wildcard-import

factory_settings["aws_ebs_limits_default_levels"] = {
    "block_store_snapshots": (None, 80.0, 90.0),
    "block_store_space_standard": (None, 80.0, 90.0),
    "block_store_space_io1": (None, 80.0, 90.0),
    "block_store_iops_io1": (None, 80.0, 90.0),
    "block_store_space_io2": (None, 80.0, 90.0),
    "block_store_iops_io2": (None, 80.0, 90.0),
    "block_store_space_gp2": (None, 80.0, 90.0),
    "block_store_space_gp3": (None, 80.0, 90.0),
    "block_store_space_sc1": (None, 80.0, 90.0),
    "block_store_space_st1": (None, 80.0, 90.0),
}


def parse_aws_ebs_limits(info):
    limits_by_region: AWSLimitsByRegion = {}
    for line in parse_aws(info):
        resource_key, resource_title, limit, amount, region = line

        if resource_key in [
            "block_store_space_standard",
            "block_store_space_io1",
            "block_store_space_io2",
            "block_store_space_gp2",
            "block_store_space_gp3",
            "block_store_space_sc1",
            "block_store_space_st1",
        ]:
            # Limit has unit TiB, amount is measured in GiB
            limit *= 1024**4
            amount *= 1024**3
            human_readable_func = get_bytes_human_readable
        elif resource_key in {"block_store_iops_io1", "block_store_iops_io2"}:
            human_readable_func = lambda x: "%s/s" % x
        else:
            human_readable_func = int
        limits_by_region.setdefault(region, []).append(
            [resource_key, resource_title, limit, amount, human_readable_func]
        )
    return limits_by_region


@get_parsed_item_data
def check_aws_ebs_limits(item, params, parsed):
    return check_aws_limits("ebs", params, parsed)


check_info["aws_ebs_limits"] = {
    "parse_function": parse_aws_ebs_limits,
    "inventory_function": discover(),
    "check_function": check_aws_ebs_limits,
    "service_description": "AWS/EBS Limits %s",
    "group": "aws_ebs_limits",
    "default_levels_variable": "aws_ebs_limits_default_levels",
    "has_perfdata": True,
}
