Source code for pykubegrader.widgets_base.select

import time
from typing import Callable, Optional, Tuple

import numpy as np
import panel as pn

from ..telemetry import ensure_responses, score_question, update_responses
from ..utils import shuffle_options, shuffle_questions
from ..widgets.style import drexel_colors

# Pass custom CSS to Panel
pn.extension(design="material", global_css=[drexel_colors])




class SelectQuestion:
    def __init__(
        self,
        title: str,
        style: Callable[
            [list[str], list, list[str]],
            Tuple[list[pn.pane.HTML], list[pn.widgets.Select]],
        ],
        question_number: int,
        keys: list[str],
        options: list[Optional[str]] | list[list[Optional[str]]],
        descriptions: list[str],
        points: int,
        shuffle_answers: bool = True,
    ):
        responses = ensure_responses()

        self.points = points
        self.question_number = question_number
        self.keys = keys
        self.style = style

        try:
            seed: int = responses["seed"]
        except ValueError:
            raise ValueError(
                "You must submit your student info before starting the exam"
            )

        # Dynamically assign attributes based on keys, with default values from responses
        for key in self.keys:
            setattr(self, key, responses.get(key, None))

        self.initial_vals: list = [getattr(self, key) for key in self.keys]

        if shuffle_answers:
            shuffle_options(options, seed)

        desc_widgets, self.widgets = style(descriptions, options, self.initial_vals)

        self.submit_button = pn.widgets.Button(name="Submit", button_type="primary")
        self.submit_button.on_click(self.submit)

        widget_pairs = shuffle_questions(desc_widgets, self.widgets, seed)

        self.layout = pn.Column(
            f"# Question {self.question_number} (Points {np.sum(points)}): {title}",
            *(
                pn.Column(desc_widget, pn.Row(dropdown))
                for desc_widget, dropdown in widget_pairs
            ),
            self.submit_button,
        )



    def submit(self, _) -> None:
        selections = {key: widget.value for key, widget in zip(self.keys, self.widgets)}

        for value in selections.values():
            if value is None:
                raise ValueError("Please answer all questions before submitting")

        for key, value in selections.items():
            update_responses(key, value)

        score_question()  # Debugging; update later

        # Temporarily change button text to indicate submission
        self.submit_button.name = "Responses Submitted"
        time.sleep(1)
        self.submit_button.name = "Submit"




    def show(self):
        return self.layout