# Python imports
import os, signal

# Lib imports
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('Gdk', '3.0')
from gi.repository import Gtk, Gdk, GLib

# Application imports
from . import View



class Controller_Data:
    def clear_children(self, widget):
        ''' Clear children of a gtk widget. '''
        for child in widget.get_children():
            widget.remove(child)

    def clear_console(self):
        os.system('cls' if os.name == 'nt' else 'clear')

    def call_method(self, _method_name, data = None):
        method_name = str(_method_name)
        method      = getattr(self, method_name, lambda data: f"No valid key passed...\nkey={method_name}\nargs={data}")
        return method(data) if data else method()

    def has_method(self, obj, name):
        return callable(getattr(obj, name, None))

    def setup_controller_data(self, _settings):
        self.settings      = _settings
        self.builder       = self.settings.get_builder()
        self.window        = self.settings.get_main_window()
        self.logger        = self.settings.get_logger()

        self.home_path     = self.settings.get_home_path()
        self.success_color = self.settings.get_success_color()
        self.warning_color = self.settings.get_warning_color()
        self.error_color   = self.settings.get_error_color()


        self.current_path_label = self.builder.get_object("current_path_label")
        self.thumbnails_view = self.builder.get_object("thumbnails_view")
        self.thumbnail_store = self.builder.get_object("thumbnail_store")
        self.image_area      = self.builder.get_object("image_area")
        self.blank_image     = self.settings.get_blank_image()


        self.thumbnails_view.connect("drag-data-received", self._on_drag_data_received)
        URI_TARGET_TYPE  = 80
        uri_target       = Gtk.TargetEntry.new('text/uri-list', Gtk.TargetFlags(0), URI_TARGET_TYPE)
        targets          = [ uri_target ]
        action           = Gdk.DragAction.COPY
        self.thumbnails_view.enable_model_drag_dest(targets, action)
        self.thumbnails_view.enable_model_drag_source(0, targets, action)

        self.images_filter = self.settings.get_images_filter()
        self.view          = View(self.images_filter, self.blank_image)
        self.current_img   = None
        self.image_update_lock = False



        self.window.connect("delete-event", self.tear_down)
        GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, self.tear_down)