""" Pseudo provides static monitor support for file alteration events """

import os
import stat
import logging
from Bcfg2.Server.FileMonitor import FileMonitor, Event

logger = logging.getLogger(__name__)

class Pseudo(FileMonitor):
    __priority__ = 99

    def AddMonitor(self, path, obj):
        """add a monitor to path, installing a callback to obj.HandleEvent"""
        handleID = len(list(self.handles.keys()))
        mode = os.stat(path)[stat.ST_MODE]
        handle = Event(handleID, path, 'exists')
        if stat.S_ISDIR(mode):
            dirList = os.listdir(path)
            self.pending_events.append(handle)
            for includedFile in dirList:
                self.pending_events.append(Event(handleID,
                                                 includedFile,
                                                 'exists'))
            self.pending_events.append(Event(handleID, path, 'endExist'))
        else:
            self.pending_events.append(Event(handleID, path, 'exists'))
        if obj != None:
            self.handles[handleID] = obj
        return handleID