from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

global garden
"""
Map of instances to list of signals
to be processed
"""
garden = {}


class Compound(FileSystemEventHandler):
    """
    File system watcher to propagate disk changes
    """

    def __init__(self, cache, isCatch: bool = False):
        """
        Parameters
        ----------
        cache: Cache
            Daisy cache to update

        isCatch: bool
            Is the cache for catchs
        """
        self.cache = cache
        self.isCatch = isCatch
        super().__init__()

    def on_any_event(self, event):
        """
        Called when a CRUD operation is performed on a record file

        Parameters
        ----------
        event
            Event object provided by watchdog
        """
        if not (".json" in event.src_path):
            if not (".md" in event.src_path):
                tpath = "/".join(event.src_path.split("/")[1:])
                if tpath != "":
                    if self.isCatch:
                        self.cache.sget(tpath)
                    else:
                        self.cache.get(tpath).get()