#!/usr/bin/env python3
import argparse
import sys
import traceback
import warnings

from cloudflarepycli import cloudflareclass

import checker.nagios as nagios


def main():
    """
    Copied from __main__.py
    https://github.com/tevslin/cloudflarepycli/blob/main/src/cloudflarepycli/__main__.py
    """
    parser = argparse.ArgumentParser(description='Check internet speed.')
    parser.add_argument('--warn-up', type=int, default=0, help='Warn level of upload speed in Mbps.')
    parser.add_argument('--critical-up', type=int, default=0, help='Critical level of upload speed in Mbps.')
    parser.add_argument('--warn-down', type=int, default=0, help='Warn level of download speed in Mbps.')
    parser.add_argument('--critical-down', type=int, default=0, help='Critical level of download speed in Mbps.')
    parser.add_argument('--warn-latency', type=int, default=60, help='Warn level of latency in ms.')
    parser.add_argument('--critical-latency', type=int, default=100, help='Critical level of latency in ms.')
    args = parser.parse_args()

    # Silence this error:
    """
    lib/python3.10/site-packages/numpy/core/fromnumeric.py:3464: RuntimeWarning: Mean of empty slice.
      return _methods._mean(a, axis=axis, dtype=dtype,
    lib/python3.10/site-packages/numpy/core/_methods.py:192: RuntimeWarning: invalid value encountered in scalar divide
      ret = ret.dtype.type(ret / rcount)
    """
    with warnings.catch_warnings():
        warnings.simplefilter("ignore", category=RuntimeWarning)
        speedtest_results = cloudflareclass.cloudflare(printit=False).runalltests()

    out_str = f"upload: {speedtest_results['90th_percentile_upload_speed']['value']} Mbps, download: {speedtest_results['90th_percentile_download_speed']['value']} Mbps, latency: {speedtest_results['latency_ms']['value']} ms, jitter: {speedtest_results['Jitter_ms']['value']} ms"
    perf_data = f"'upload'={speedtest_results['90th_percentile_upload_speed']['value'] * 1e+6}B;{args.warn_up * 1e+6};{args.critical_up * 1e+6};0; 'download'={speedtest_results['90th_percentile_download_speed']['value'] * 1e+6}B;{args.warn_down * 1e+6};{args.critical_down * 1e+6};0; 'latency_ms'={speedtest_results['latency_ms']['value']}ms;{args.warn_latency};{args.critical_latency};0; 'jitter_ms'={speedtest_results['Jitter_ms']['value']}ms;;;0;"

    exit_code = nagios.OK

    if speedtest_results['90th_percentile_upload_speed']['value'] <= args.critical_up and exit_code < nagios.CRITICAL:
        exit_code = nagios.CRITICAL
    elif speedtest_results['90th_percentile_upload_speed']['value'] <= args.warn_up and exit_code < nagios.WARNING:
        exit_code = nagios.WARNING

    if speedtest_results['90th_percentile_download_speed']['value'] <= args.critical_down and exit_code < nagios.CRITICAL:
        exit_code = nagios.CRITICAL
    elif speedtest_results['90th_percentile_download_speed']['value'] <= args.warn_down and exit_code < nagios.WARNING:
        exit_code = nagios.WARNING

    if speedtest_results['latency_ms']['value'] >= args.warn_latency and exit_code < nagios.CRITICAL:
        exit_code = nagios.CRITICAL
    elif speedtest_results['latency_ms']['value'] >= args.warn_latency and exit_code < nagios.WARNING:
        exit_code = nagios.WARNING

    if exit_code == nagios.OK:
        status_str = 'OK'
    elif exit_code == nagios.WARNING:
        status_str = 'WARN'
    elif exit_code == nagios.CRITICAL:
        status_str = 'CRITICAL'
    else:
        status_str = 'UNKNOWN'

    print(f'{status_str} - {out_str} |{perf_data}')
    sys.exit(exit_code)


if __name__ == "__main__":
    try:
        main()
    except Exception as e:
        print(f'UNKNOWN: exception "{e}"')
        print(traceback.format_exc())
        sys.exit(nagios.UNKNOWN)