from PySide6.QtWidgets import QApplication, QDialog, QVBoxLayout, QLabel, QLineEdit, QPushButton, QHBoxLayout, QTextEdit

from gui.LibrarySystemUI import LibrarySystemUI


class LoginDialog(QDialog):
    def __init__(self, user_manager):
        super().__init__()

        self.user_manager = user_manager

        self.layout = QVBoxLayout()

        self.setWindowTitle("请登录")

        self.label = QLabel("请输入您的用户名称和密码")
        self.layout.addWidget(self.label)

        self.userID_line_edit = QLineEdit()
        self.userID = QHBoxLayout()
        self.userID.addWidget(QLabel("账户"))
        self.userID.addWidget(self.userID_line_edit)
        self.layout.addLayout(self.userID)

        self.password_line_edit = QLineEdit()
        self.password = QHBoxLayout()
        self.password.addWidget(QLabel("密码"))
        self.password.addWidget(self.password_line_edit)
        self.layout.addLayout(self.password)

        self.login_button = QPushButton("登录")
        self.login_button.clicked.connect(self.login)
        self.layout.addWidget(self.login_button)

        self.setLayout(self.layout)

    def login(self):
        userID = self.userID_line_edit.text()
        password = self.password_line_edit.text()
        login = self.user_manager.login(userID, password)
        if login:
            self.hide()
            self.lsu = LibrarySystemUI(self.user_manager)
            self.lsu.show()