import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QLabel, QLineEdit, QPushButton, QColorDialog, QTableWidget, QTableWidgetItem, QHeaderView
from PyQt5.QtGui import QColor
import pyqtgraph as pg
import random


class FuzzyScaleApp(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Оценка прибыли")
        self.setGeometry(100, 100, 800, 600)

        self.plot_widget = pg.PlotWidget()
        self.table_widget = QTableWidget()
        self.table_widget.setColumnCount(6)
        self.table_widget.setHorizontalHeaderLabels(["Название", "Тип", "a", "b", "c", "d"])
        self.table_widget.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)

        self.add_btn = QPushButton("Добавить")
        self.remove_btn = QPushButton("Удалить")
        self.update_btn = QPushButton("Обновить график")

        main_widget = QWidget()
        main_layout = QVBoxLayout()
        main_layout.addWidget(self.plot_widget)
        main_layout.addWidget(self.table_widget)
        button_layout = QVBoxLayout()
        button_layout.addWidget(self.add_btn)
        button_layout.addWidget(self.remove_btn)
        button_layout.addWidget(self.update_btn)
        main_layout.addLayout(button_layout)
        main_widget.setLayout(main_layout)
        self.setCentralWidget(main_widget)

        self.membership_functions = [
            ["Низкая", "Треугольная", 10, 20, 30, None],
            ["Средняя", "Трапециевидная", 15, 25, 35, 45],
            ["Высокая", "Треугольная", 40, 50, 60, None],
        ]
        self.update_table()
        self.update_plot()

        self.add_btn.clicked.connect(self.add_function)
        self.remove_btn.clicked.connect(self.remove_function)
        self.table_widget.cellChanged.connect(self.update_data)
        self.update_btn.clicked.connect(self.update_plot)

    def update_data(self):
        print(self.membership_functions)
        for row in range(self.table_widget.rowCount()):
            for column in range(6):
                index = self.table_widget.model().index(row, column)
                data = self.table_widget.model().data(index)
                if column == 5:
                    if self.membership_functions[row][1] == 'Треугольная' and data != '':
                        self.membership_functions[row][1] = 'Трапециевидная'
                    elif self.membership_functions[row][column] == 'Трапециевидная' and data == '':
                        self.membership_functions[row][1] = 'Треугольная'
                if data == '':
                    self.membership_functions[row][column] = None
                    continue
                try:
                    self.membership_functions[row][column] = int(data)
                except ValueError:
                    self.membership_functions[row][column] = data
        print(self.membership_functions)

    def add_function(self):
        print("чмо")
        row_count = self.table_widget.rowCount()
        self.table_widget.insertRow(row_count)
        self.table_widget.setItem(row_count, 0, QTableWidgetItem("Новая функция"))
        self.table_widget.setItem(row_count, 1, QTableWidgetItem("Треугольная"))
        self.membership_functions.append(["Новая функция", "Треугольная", 0, 25, 50, None])
        self.update_table()
        self.update_plot()

    def remove_function(self):
        selected_rows = self.table_widget.selectionModel().selectedRows()
        rows_to_remove = [index.row() for index in selected_rows]
        rows_to_remove.sort(reverse=True)
        for row in rows_to_remove:
            self.table_widget.removeRow(row)
            del self.membership_functions[row]
        self.update_plot()

    def update_table(self):
        self.table_widget.setRowCount(len(self.membership_functions))
        row = 0
        for (name, mf_type, a, b, c, d) in self.membership_functions:
            self.table_widget.setItem(row, 0, QTableWidgetItem(name))
            self.table_widget.setItem(row, 1, QTableWidgetItem(mf_type))
            self.table_widget.setItem(row, 2, QTableWidgetItem(str(a)))
            self.table_widget.setItem(row, 3, QTableWidgetItem(str(b)))
            self.table_widget.setItem(row, 4, QTableWidgetItem(str(c)))
            self.table_widget.setItem(row, 5, QTableWidgetItem(str(d) if d is not None else ""))
            row += 1

    def update_plot(self):
        self.plot_widget.clear()
        print('лох')
        x = [-10, 110]
        y = [0, 0]
        self.plot_widget.plot(x, y)
        for (name, mf_type, a, b, c, d) in self.membership_functions:
            print(name, mf_type, a, b, c, d)
            if mf_type == "Треугольная":
                x = [a, b, c]
                y = [0, 1, 0]
                self.plot_widget.plot(x, y, name=name, pen=pg.mkPen(QColor(random.randint(0,255), random.randint(0,255), random.randint(0,255)), width=2))
            else:
                x = [a, b, c, d]
                y = [0, 1, 1, 0]
                self.plot_widget.plot(x, y, name=name, pen=pg.mkPen(QColor(random.randint(0,255), random.randint(0,255), random.randint(0,255)), width=2))


if __name__ == "__main__":
    app = QApplication(sys.argv)
    fuzzy_scale_app = FuzzyScaleApp()
    fuzzy_scale_app.show()
    sys.exit(app.exec_())