import os
import logging

import hou

from pyblish import api as pyblish

from avalon import api as avalon
from avalon.houdini import pipeline as houdini

from pype.houdini import lib

from pype.lib import (
    any_outdated,
    update_task_from_path
)


PARENT_DIR = os.path.dirname(__file__)
PACKAGE_DIR = os.path.dirname(PARENT_DIR)
PLUGINS_DIR = os.path.join(PACKAGE_DIR, "plugins")

PUBLISH_PATH = os.path.join(PLUGINS_DIR, "houdini", "publish")
LOAD_PATH = os.path.join(PLUGINS_DIR, "houdini", "load")
CREATE_PATH = os.path.join(PLUGINS_DIR, "houdini", "create")

log = logging.getLogger("pype.houdini")


def install():

    pyblish.register_plugin_path(PUBLISH_PATH)
    avalon.register_plugin_path(avalon.Loader, LOAD_PATH)
    avalon.register_plugin_path(avalon.Creator, CREATE_PATH)

    log.info("Installing callbacks ... ")
    avalon.on("init", on_init)
    avalon.on("save", on_save)
    avalon.on("open", on_open)

    log.info("Overriding existing event 'taskChanged'")

    log.info("Setting default family states for loader..")
    avalon.data["familiesStateToggled"] = ["imagesequence"]


def on_init(*args):
    houdini.on_houdini_initialize()


def on_save(*args):

    avalon.logger.info("Running callback on save..")

    update_task_from_path(hou.hipFile.path())

    nodes = lib.get_id_required_nodes()
    for node, new_id in lib.generate_ids(nodes):
        lib.set_id(node, new_id, overwrite=False)


def on_open(*args):

    avalon.logger.info("Running callback on open..")

    update_task_from_path(hou.hipFile.path())

    if any_outdated():
        from ..widgets import popup

        log.warning("Scene has outdated content.")

        # Get main window
        parent = hou.ui.mainQtWindow()

        if parent is None:
            log.info("Skipping outdated content pop-up "
                     "because Maya window can't be found.")
        else:

            # Show outdated pop-up
            def _on_show_inventory():
                import avalon.tools.cbsceneinventory as tool
                tool.show(parent=parent)

            dialog = popup.Popup(parent=parent)
            dialog.setWindowTitle("Maya scene has outdated content")
            dialog.setMessage("There are outdated containers in "
                              "your Maya scene.")
            dialog.on_show.connect(_on_show_inventory)
            dialog.show()