import os
from PyQt5 import QtCore, QtGui, QtWidgets
import configparser

# Load configuration from file
config = configparser.ConfigParser()
config.read('dbgr.conf')

class ConfigEditor(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setGeometry(100, 100, 600, 150) # Set window size to 600x150 pixels
        self.create_widgets()

    def create_widgets(self):
        central_widget = QtWidgets.QWidget(self)
        self.setCentralWidget(central_widget)

        # Create labels and entry fields for each config variable
        dosbox_path_label = QtWidgets.QLabel('DOSBox Path', central_widget)
        self.dosbox_path_entry = QtWidgets.QLineEdit(central_widget)
        self.dosbox_path_entry.setText(config['DEFAULT']['dosbox_path'])

        game_path_label = QtWidgets.QLabel('Game Path', central_widget)
        self.game_path_entry = QtWidgets.QLineEdit(central_widget)
        self.game_path_entry.setText(config['DEFAULT']['game_path'])
        self.browse_button = QtWidgets.QPushButton('Browse', central_widget)
        self.browse_button.clicked.connect(self.browse_game_path)

        working_directory_label = QtWidgets.QLabel('Working Directory', central_widget)
        self.working_directory_entry = QtWidgets.QLineEdit(central_widget)
        self.working_directory_entry.setText(config['DEFAULT']['working_directory'])

        cycles_label = QtWidgets.QLabel('Cycles', central_widget)
        self.cycles_entry = QtWidgets.QLineEdit(central_widget)
        self.cycles_entry.setText(config['DEFAULT']['-cycles'])

        memsize_label = QtWidgets.QLabel('Memsize', central_widget)
        self.memsize_entry = QtWidgets.QLineEdit(central_widget)
        self.memsize_entry.setText(config['DEFAULT']['-memsize'])

        # Create save button
        save_button = QtWidgets.QPushButton('Save', central_widget)
        save_button.clicked.connect(self.save_config)

        # Set layout
        layout = QtWidgets.QGridLayout(central_widget)
        layout.addWidget(dosbox_path_label, 0, 0)
        layout.addWidget(self.dosbox_path_entry, 0, 1)
        layout.addWidget(game_path_label, 1, 0)
        layout.addWidget(self.game_path_entry, 1, 1)
        layout.addWidget(self.browse_button, 1, 2)
        layout.addWidget(working_directory_label, 2, 0)
        layout.addWidget(self.working_directory_entry, 2, 1)
        layout.addWidget(cycles_label, 3, 0)
        layout.addWidget(self.cycles_entry, 3, 1)
        layout.addWidget(memsize_label, 4, 0)
        layout.addWidget(self.memsize_entry, 4, 1)
        layout.addWidget(save_button, 5, 0, 1, 2)

    def browse_game_path(self):
        # Set initial directory to script directory
        initial_dir = os.path.dirname(__file__)

        # Open file dialog to select game file
        filetypes = [('All files', '*.*')]
        game_file, _ = QtWidgets.QFileDialog.getOpenFileName(self, 'Select game file', initial_dir, ';;'.join(['{} (*.{})'.format(ft.upper(), ft) for ft in ['exe', 'com', 'bat']]))
        if game_file:
            self.game_path_entry.setText(game_file)
            self.working_directory_entry.setText(os.path.dirname(game_file))

    def save_config(self):
        # Update configuration with values from entry fields
        config['DEFAULT']['dosbox_path'] = self.dosbox_path_entry.text()
        config['DEFAULT']['game_path'] = self.game_path_entry.text()
        config['DEFAULT']['working_directory'] = self.working_directory_entry.text()
        config['DEFAULT']['-cycles'] = self.cycles_entry.text()
        config['DEFAULT']['-memsize'] = self.memsize_entry.text()

        # Write updated configuration to file
        with open('dbgr.conf', 'w') as configfile:
            config.write(configfile)

        # Close GUI window
        self.close()

# Create and run GUI application
if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    editor = ConfigEditor()
    editor.show()
    sys.exit(app.exec_())