import sys

from PyQt6.QtCore import Qt

import RegressionModel
from pyqtgraph import PlotWidget, plot
import pyqtgraph as pg
from PyQt6.QtWidgets import (QApplication, QMainWindow, QWidget,
                             QVBoxLayout, QHBoxLayout, QGridLayout,
                             QLabel, QPushButton, QSlider, QDateTimeEdit,
                             QLineEdit, QComboBox, QDateEdit, QTabWidget, QCheckBox)
from PyQt6.QtGui import QPalette, QColor, QIcon


class MyTabs(QMainWindow):
    def __init__(self):
        super().__init__()

        # Create your custom pages (e.g., TradeView and OrderView)
        trade_view = MainWindow()
        order_view = Advanced()

        # Create a tab widget
        tab_widget = QTabWidget(self)
        tab_widget.addTab(trade_view, "Main")
        tab_widget.addTab(order_view, "Advanced")

        # Set the central widget
        self.setCentralWidget(tab_widget)


class MainWindow(QMainWindow):

    def __init__(self):
        super().__init__()
        self.setWindowIcon(QIcon("icon.ico"))
        self.setMinimumSize(720, 640)

        # Create a central widget
        central_widget = QWidget(self)
        self.setCentralWidget(central_widget)

        # Create a grid layout and set it to the central widget
        grid_layout = QGridLayout(central_widget)

        # Create labels and input fields
        self.labels_text = ['Cut', 'Colour', 'Clarity', 'Carat', 'Depth', 'Table', 'X', 'Y', 'Z']
        self.input_fields = [QComboBox(self), QComboBox(self), QComboBox(self), QLineEdit(self),
                             QLineEdit(self), QLineEdit(self), QLineEdit(self), QLineEdit(self),
                             QLineEdit(self)]
        self.input_fields[0].addItems(RegressionModel.cut)
        self.input_fields[1].addItems(RegressionModel.colors)
        self.input_fields[2].addItems(RegressionModel.clarity)
        # add a button to capture all the data
        self.calculate_button = QPushButton('Calculate Price', self)
        self.calculate_button.clicked.connect(self.update_values)

        # Add labels and input fields to the grid layout
        for i in range(len(self.labels_text)):
            label = QLabel(self.labels_text[i], self)
            grid_layout.addWidget(label, 0, i)
            grid_layout.addWidget(self.input_fields[i], 1, i)

        # Create a plot widget
        graphWidget = pg.PlotWidget(self)
        graphWidget.setBackground('w')
        graphWidget.plot(RegressionModel.diamonds['carat'], RegressionModel.diamonds['price'])

        # Add the plot widget to the grid layout
        grid_layout.addWidget(self.calculate_button, 2, 0, 1, 2)
        grid_layout.addWidget(graphWidget, 3, 0, 1, 9)
        grid_layout.addWidget(QLabel("Predicted Price: ", self), 4, 0, 1, 1)
        grid_layout.addWidget(QLabel(str(RegressionModel.price), self), 4, 2, 1, 1)
        # Remember to add the predicted price

        self.setWindowTitle('Assistance Systems')
        self.show()

    def update_values(self):
        menu_items = {0: 'cut', 1: 'color', 2: 'clarity', 3: 'carat', 4: 'depth', 5: 'table',
                      6: 'x', 7: 'y', 8: 'z'}
        for key, value in menu_items.items():
            print(key)
            if key < 3:
                RegressionModel.GUI_selections[value] = self.input_fields[key].currentText()
            else:
                RegressionModel.GUI_selections[value] = self.input_fields[key].text()
            print(RegressionModel.GUI_selections)


class Advanced(QMainWindow):

    def __init__(self):
        super().__init__()
        self.setWindowIcon(QIcon("icon.ico"))
        self.setMinimumSize(720, 640)

        central_widget = QWidget(self)
        self.setCentralWidget(central_widget)
        # Create a grid layout and set it to the central widget
        grid_layout = QGridLayout(central_widget)

        self.graph_selector_X = QComboBox(self)
        self.graph_selector_Y = QComboBox(self)
        self.regression_model = QComboBox(self)
        self.check_labels = ['Cut', 'Colour', 'Clarity', 'Carat', 'Depth', 'Table', 'X', 'Y', 'Z']
        self.graph_selector_X.addItems((self.check_labels + ['price']))
        self.graph_selector_Y.addItems((self.check_labels + ['price']))
        self.regression_model.addItems(["Linear Regression", "Gradient Descent", "Random Forest"])
        self.checkboxes = []


        grid_layout.addWidget(QLabel("select features to include in Modelling"), 0, 0, 1, 0)
        # grid_layout.addWidget(self.graph_selector_X, 1, 2)
        # grid_layout.addWidget(self.graph_selector_Y, 1, 3)
        grid_layout.addWidget(self.regression_model, 2, 1)
        # grid_layout.addWidget(QLabel("X-PLOT", self), 0, 2)
        # grid_layout.addWidget(QLabel("Y-PLOT", self), 0, 3)
        grid_layout.addWidget(QLabel("Regression Model : ", self), 2, 0,1,1)


        for i, label in enumerate(self.check_labels):
            checkbox = QCheckBox(label, self)
            checkbox.setChecked(True)
            checkbox.stateChanged.connect(self.handle_checkbox_state)  # Connect signal
            grid_layout.addWidget(checkbox, 1, i)
            self.checkboxes.append(checkbox)  # Store checkboxes in the list

    def handle_checkbox_state(self):
        for i, checkbox in enumerate(self.checkboxes):
            state = checkbox.checkState()
            RegressionModel.Advanced_selections[checkbox.text()] = (state == Qt.CheckState.Checked)


app = QApplication(sys.argv)

window = MyTabs()
window.show()

app.exec()