# -*- coding: utf-8 -*-
import widgetUtils
import config
from . import wx_ui
from . import constants
from pubsub import pub

class KeystrokeEditor(object):
    def __init__(self):
        super(KeystrokeEditor, self).__init__()
        self.changed = False # Change it if the keyboard shorcuts are reassigned.
        self.dialog = wx_ui.keystrokeEditorDialog()
        self.map = config.keymap["keymap"]
        # we need to  copy the keymap before modify it, for unregistering the old keystrokes if is needed.
        self.hold_map = self.map.copy()
        self.dialog.put_keystrokes(constants.actions, self.map)
        widgetUtils.connect_event(self.dialog.edit, widgetUtils.BUTTON_PRESSED, self.edit_keystroke)
        widgetUtils.connect_event(self.dialog.undefine, widgetUtils.BUTTON_PRESSED, self.undefine_keystroke)
        widgetUtils.connect_event(self.dialog.execute, widgetUtils.BUTTON_PRESSED, self.execute_action)
        self.dialog.get_response()

    def edit_keystroke(self, *args, **kwargs):
        action = self.dialog.actions[self.dialog.get_action()]
        edit_dialog = wx_ui.editKeystrokeDialog()
        self.set_keystroke(self.map[action], edit_dialog)
        answer = edit_dialog.get_response()
        if answer == widgetUtils.OK:
            new_keystroke = self.get_edited_keystroke(edit_dialog)
            if new_keystroke != self.map[action]:
                self.changed = True
                self.map[action] = new_keystroke
                self.dialog.put_keystrokes(constants.actions, self.map)

    def undefine_keystroke(self, *args, **kwargs):
        action = self.dialog.actions[self.dialog.get_action()]
        keystroke = self.map.get(action)
        if keystroke == None:
            return
        answer = self.dialog.undefine_keystroke_confirmation()
        if answer == widgetUtils.YES:
            self.map[action] = ""
            self.changed = True
            self.dialog.put_keystrokes(constants.actions, self.map)

    def set_keystroke(self, keystroke, dialog):
        for i in keystroke.split("+"):
            if hasattr(dialog, i):
                dialog.set(i, True)
        dialog.set("key", keystroke.split("+")[-1])

    def get_edited_keystroke(self, dialog):
        keys = []
        if dialog.get("control") == True:
            keys.append("control")
        if dialog.get("win") == True:
            keys.append("win")
        if dialog.get("alt") == True:
            keys.append("alt")
        if dialog.get("shift") == True:
            keys.append("shift")
        if dialog.get("key") != "":
            keys.append(dialog.get("key"))
        else:
            wx_ui.no_key()
            return
        return "+".join(keys)

    def execute_action(self, *args, **kwargs):
        action = self.dialog.actions[self.dialog.get_action()]
        pub.sendMessage("execute-action", action=action)