import abc
import ImageProcessingWorker


import numpy as np

from PyQt6.QtWidgets import QApplication, QLabel, QVBoxLayout, QHBoxLayout, QPushButton, QWidget, QFileDialog, QSlider, QLineEdit, QDialog
from PyQt6.QtGui import QPixmap, QImage, QColor, QPainter, QPen
from PyQt6.QtCore import Qt, QPoint, QThread

from .ImageParameterDialog import ImageParameterDialog


class HCLDialog(ImageParameterDialog):
    def __init__(self, hsv_image):
        super().__init__(hsv_image, ImageProcessingWorker.HLSImageProcessingWorker)
        self.setWindowTitle("HCL Correction")
        self.layout = QVBoxLayout()

        self.hue_slider = QSlider(Qt.Orientation.Horizontal)
        self.hue_slider.setRange(-180, 180)

        self.chroma_slider = QSlider(Qt.Orientation.Horizontal)
        self.chroma_slider.setRange(-100, 100)
        
        self.lightness_slider = QSlider(Qt.Orientation.Horizontal)
        self.lightness_slider.setRange(-100, 100)


        self.label1 = QLabel("Hue Value: 0")
        self.label2 = QLabel("Chroma Value: 0")
        self.label3 = QLabel("Lightness Value: 0")

        self.hue_slider.valueChanged.connect(lambda value: self.update(self.label1, value, "Hue"))
        self.chroma_slider.valueChanged.connect(lambda value: self.update(self.label2, value, "Chroma"))
        self.lightness_slider.valueChanged.connect(lambda value: self.update(self.label3, value, "Lightness"))

        self.layout.addWidget(self.label1)
        self.layout.addWidget(self.hue_slider)
        self.layout.addWidget(self.label2)
        self.layout.addWidget(self.chroma_slider)
        self.layout.addWidget(self.label3)
        self.layout.addWidget(self.lightness_slider)
        self.layout.addWidget(self.button_box)

        self.setLayout(self.layout)

    def update(self, label, value, slider_name):
        label.setText(f"{slider_name} Value: {value}")
        self.send_to_process({
            'hue': self.hue_slider.value(),
            'chroma': self.chroma_slider.value() / 100.0,
            'lightness': self.lightness_slider.value() / 100.0
        })

    

    def process_image(self,hsv_image, values):
        hue = values.get('hue', 0.0) / 2
        chroma = values.get('chroma', 0.0)
        lightness = values.get('lightness', 0.0)

        hsv_image[..., 0] = (hsv_image[..., 0] + hue) % 180

        hsv_image[..., 1] += (255 * lightness)
        hsv_image[..., 1] = np.clip(hsv_image[..., 1], 0, 255)

        hsv_image[..., 2] += (255 * chroma)
        hsv_image[..., 2] = np.clip(hsv_image[..., 2], 0, 255)


        return hsv_image

    @classmethod
    def dialog_name(cls):
        return "Hue-Chroma-Lightness"