import abc

from PyQt6.QtWidgets import QWidget, QDialog, QDialogButtonBox
from PyQt6.QtGui import QPixmap, QImage, QColor, QPainter, QPen
from PyQt6.QtCore import Qt, QPoint, QThread


class ImageParameterDialog(QDialog):

    def __init__(self, image, worker_factory):
        super().__init__()
        self._image = image
        self.last_processed = image
        self.worker_factory = worker_factory
        self.setup_worker()

        self.button_box = QDialogButtonBox(QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel)
        self.button_box.accepted.connect(self.accept)
        self.button_box.rejected.connect(self.reject)

    def setup_worker(self):
        self.worker = self.worker_factory(self._image, self.process_image)
        self.worker.result_ready.connect(self._update_last_processed)
        self.update_values_signal = self.worker.update_values  
        self.update_values_signal.connect(self.worker.process_image)

        self.worker.start()

    def _update_last_processed(self, new_image):
        self.last_processed = new_image

    def _on_accepted(self):
        self.worker.stop()
        self.accept()


    # @abc.abstractmethod
    def process_image(self,image, values):
        pass


    def result_ready(self):
        return self.worker.result_ready

    def send_to_process(self, values):
        self.update_values_signal.emit(values)
        
    def set_accept_enable(self, value):
        self.button_box.button(QDialogButtonBox.StandardButton.Ok).setEnabled(value)


    @classmethod
    def dialog_name(cls):
        return cls.__name__

    @classmethod
    def dialog_icon(cls):
        return None