#
#   cron.py
#
#   List the logged (executed) cron jobs and their commands (uses syslog file)
#
#   NOTE: This file is now deprecated in favour of the newer journald mechanism
#   used in cron-journald.py. This parser is still functional but is slower and
#   has less features. Please switch over if possible.
#

import re

from logparse.formatting import *
from logparse.util import readlog
from logparse import config
from logparse.load_parsers import Parser
from logparse.load_parsers import Parser

class Cron(Parser):

    def __init__(self):
        super().__init__()
        self.name = "cron"
        self.info = "List the logged (executed) cron jobs and their commands (uses static syslog file)"
        self.deprecated = True
        self.successor = "cron_journald"

    def parse_log(self):

        logger.warning("NOTE: This cron parser is now deprecated. Please use cron-journald if possible.")

        logger.debug("Starting cron section")
        section = Section("cron")

        matches = re.findall('.*CMD\s*\(\s*(?!.*cd)(.*)\)', readlog(config.prefs.get("logs", "cron")))
        num = len(matches)
        commands = []
        for match in matches:
            commands.append(str(match))
        logger.info("Found " + str(num) + " cron jobs")
        jobs_data = Data(str(num) + " cron jobs run")
        section.append_data(jobs_data)

        if (num > 0):
            logger.debug("Analysing cron commands")
            cmd_data = Data("Top cron commands")
            cmd_data.items = ("`{0}`".format(x) for x in commands)
            cmd_data.orderbyfreq()
            cmd_data.truncl(config.prefs.getint("logparse", "maxcmd"))
            section.append_data(cmd_data)

        logger.info("Finished cron section")
        return section