import sys
from PyQt5.QtWidgets import QWidget, QCheckBox, QApplication, QPushButton, QLCDNumber
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QMainWindow, QLabel


class Example(QMainWindow):
    def __init__(self, *items):
        super().__init__()
        self.items = items
        self.initUI()

    def initUI(self):
        self.setGeometry(300, 300, 600, 300)
        self.setWindowTitle('Заказ в Макдональдсе 2')
        self.subjects = []
        self.k = 0
        for item in self.items:
            sb = subject(*item, self)
            sb.move(0, self.k * 60)
            self.subjects.append(sb)
            self.k += 1
        self.btn = QPushButton('рассчитать', self)
        self.btn.move(100, self.k * 60 + 50)
        self.btn.clicked.connect(self.start)

    def start(self):
        self.bill = Bill(list(filter(lambda x: x.count > 0, self.subjects)))
        self.bill.show()


class Bill(QWidget):
    def __init__(self, arg):
        super().__init__()
        self.food = arg
        self.initUI()

    def initUI(self):
        self.setGeometry(400, 400, 600, 300)
        self.setWindowTitle('Чек')
        self.count = 0

        for i in range(len(self.food)):
            self.name_label = QLabel(self)
            self.name_label.setText(str(self.food[i]))
            self.name_label.move(20, 20 * (i + 1))
            self.count += self.food[i].tp()
        self.name_fin1 = QLabel(self)
        self.name_fin1.setText('-------------------------------------')
        self.name_fin1.move(20, 20 * (i + 2))
        self.name_fin2 = QLabel(self)
        self.name_fin2.setText(str(self.count))
        self.name_fin2.move(20, 20 * (i + 3))


class subject:
    def __init__(self, title, price, screen):
        self.title = title
        self.price = price
        self.count = 0

        self.minus = QPushButton('-', screen)
        self.minus.clicked.connect(self.decrease)

        self.plus = QPushButton('+', screen)
        self.plus.clicked.connect(self.increase)

        self.title_label = QLabel(screen)
        self.title_label.setText(self.title)
        self.title_label.resize(self.title_label.sizeHint())

        self.price_label = QLabel(screen)
        self.price_label.setText('{} р.'.format(self.price))
        self.price_label.resize(self.price_label.sizeHint())

        self.disp = QLCDNumber(screen)

    def decrease(self):
        self.count = max(0, self.count - 1)
        self.disp.display(self.count)

    def increase(self):
        self.count += 1
        self.disp.display(self.count)

    def move(self, x, y):
        self.minus.move(x + 10, y + 10)
        self.minus.resize(50, 50)
        self.disp.move(x + 70, y + 20)
        self.plus.move(x + 180, y + 10)
        self.plus.resize(50, 50)
        self.title_label.move(x + 240, y + 20)
        self.price_label.move(x + 500, y + 20)

    def tp(self):
        return self.count * self.price

    def __str__(self):
        return "{} {}руб. {} шт".format(self.title, self.price, self.count)

    def __repr__(self):
        return "{} {}руб.".format(self.title, self.price)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    with open("input.txt", encoding='utf-8') as f:
        data = []
        for line in f:
            title, price = line.strip().split(';')
            data.append((title, int(price)))
        ex = Example(*data)
        ex.show()
        sys.exit(app.exec_())