from PyQt6.QtCore import QThread, pyqtSignal


class PageDataWorker(QThread):
    data_ready = pyqtSignal(str, object)
    failed = pyqtSignal(str, str)

    def __init__(self, name, fn, *args):
        super().__init__()
        self.name = name
        self.fn = fn
        self.args = args

    def run(self):
        try:
            payload = self.fn(*self.args)
            self.data_ready.emit(self.name, payload)
        except Exception as error:
            self.failed.emit(self.name, f"{type(error).__name__}: {error}")