import os
import logging
from PySide6.QtGui import QIcon, QImage

import Kikka
from Kikka.KikkaConst import *
from Kikka.Utils.Singleton import singleton

def getDefaultImage():
    return QImage(os.path.join(RESOURCES_PATH, "default.png"))

@singleton
class KikkaStyle:
    
    def __init__(self):
        self._theme = None
    
    def getThemePath(self):
        return os.path.join(THEME_PATH, self._theme)
    
    def switchTheme(self, theme=DEFAULT_THEME):
        theme_path = os.path.join(THEME_PATH, theme)
        theme_file = os.path.join(THEME_PATH, theme, "style_sheet.qss")
        if not os.path.exists(theme_file):
            # load default theme
            theme = DEFAULT_THEME
            theme_file = os.path.join(THEME_PATH, theme, "style_sheet.qss")
        
        with open(theme_file, "r", encoding="utf8") as fp:
            content = fp.read()
        
        self._theme = theme
        Kikka.app.setStyleSheet(content)
        
        file = os.path.join(theme_path, "menu_background.png")
        if os.path.exists(file):
            self.bg_image = QImage(file)
        else:
            self.bg_image = getDefaultImage()
            logging.warning("Menu background image NOT found: %s" % file)

        file = os.path.join(theme_path, "menu_foreground.png")
        if os.path.exists(file):
            self.fg_image = QImage(file)
        else:
            self.fg_image = getDefaultImage()
            logging.warning("Menu foreground image NOT found: %s" % file)

        file = os.path.join(theme_path, "menu_sidebar.png")
        if os.path.exists(file):
            self.side_image = QImage(file)
        else:
            self.side_image = getDefaultImage()
            logging.warning("Menu sidebar image NOT found: %s" % file)
        
    
    def getMenuBGImage(self):
        return self.bg_image
    
    def getMenuFGImage(self):
        return self.fg_image
    
    def getMenuSideImage(self):
        return self.side_image