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import "./MultipleChoiceEditor.scss";
import {
Alert,
Box,
Button,
Card,
CardContent,
Checkbox,
Chip,
Collapse,
Divider,
Fab,
FormControlLabel,
IconButton,
LinearProgress,
Paper,
Radio,
RadioGroup,
Stack,
Step,
StepLabel,
Stepper,
TextField,
Tooltip,
Typography,
} from "@mui/material";
import { useTheme } from "@mui/material/styles";
import { DragDropContext, Droppable, Draggable } from "@hello-pangea/dnd";
import "@atlaskit/css-reset";
import tinyMCEUtility from "@/utils/helpers/tinyMCEUtility";
// Icons
import AddIcon from "@mui/icons-material/Add";
import DeleteOutlineIcon from "@mui/icons-material/DeleteOutline";
import EditIcon from "@mui/icons-material/Edit";
import DragIndicatorIcon from "@mui/icons-material/DragIndicator";
import CheckCircleIcon from "@mui/icons-material/CheckCircle";
import CheckCircleOutlineIcon from "@mui/icons-material/CheckCircleOutline";
import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
import ExpandLessIcon from "@mui/icons-material/ExpandLess";
import SaveIcon from "@mui/icons-material/Save";
import CloseIcon from "@mui/icons-material/Close";
import HelpOutlineIcon from "@mui/icons-material/HelpOutline";
import QuizIcon from "@mui/icons-material/Quiz";
import SettingsIcon from "@mui/icons-material/Settings";
import ListAltIcon from "@mui/icons-material/ListAlt";
import NoteAddIcon from "@mui/icons-material/NoteAdd";
import RestartAltIcon from "@mui/icons-material/RestartAlt";
import {
letters,
useQuestionForm,
TextEditorDialog,
QuestionSettings,
QuickTipsCard,
getClassificationProgress,
editorContainerSx,
editorHeaderSx,
cardHeaderHoverSx,
editorCardSx,
emptyStateSx,
choiceItemBorderSx,
choiceBadgeSx,
correctAnswerBadgeSx,
tipsCardSx,
dragHandleSx,
} from "../utils";
import ReadOnlyMathEditor from "@/utils/components/TinyMCETextEditorReadOnly";
import RichTextContent from "@/utils/components/question-bank/question-display/utils/RichTextContent";
import UnsavedChangesDialog from "@/utils/components/UnsavedChangesDialog";
import { choiceRowSurfaceBg } from "@/utils/components/question-bank/question-display/utils/questionCardStyles";
const MainV2 = ({ role = "teacher" }) => {
const {
displayError,
setDisplayError,
editQuestion,
isEditMode,
setEditMode,
questionText,
setQuestionText,
questionTextEditor,
setQuestionTextEditor,
showQuestionTextEditor,
questionDetailsText,
setQuestionDetailsText,
questionDetailsTextEditor,
setQuestionDetailsTextEditor,
showQuestionDetailsTextEditor,
answerDetailsText,
setAnswerDetailsText,
answerDetailsTextEditor,
setAnswerDetailsTextEditor,
showAnswerDetailsTextEditor,
values,
touched,
errors,
handleChange,
handleBlur,
setFieldValue,
setFieldTouched,
handleCancel,
clickQuestionButton,
saveQuestion,
cancelQuestion,
clickQuestionDetailsButton,
saveQuestionDetails,
cancelQuestionDetails,
clickEditAnswerDetails,
saveAnswerDetails,
cancelEditAnswerDetails,
deleteAnswerDetails,
submitQuestion,
buildBasePayload,
loadEditData,
resetFields,
handleImageUpload,
SaveProgress,
navigationBlocker,
} = useQuestionForm(role);
const { getChoiceComparisonKey } = tinyMCEUtility();
const theme = useTheme();
// Stepper state
const [activeStep, setActiveStep] = useState(0);
// Expandable sections
const [questionDetailsExpanded, setQuestionDetailsExpanded] = useState(false);
const [answerDetailsExpanded, setAnswerDetailsExpanded] = useState(false);
const [settingsExpanded, setSettingsExpanded] = useState(true);
// Multiple-choice specific state
const [selectedAnswers, setSelectedAnswers] = useState([]);
const [addedChoices, setAddedChoices] = useState([]);
const [selectedChoice, setSelectedChoice] = useState(null);
const [choiceTextEditor, setChoiceTextEditor] = useState("");
const [showChoiceTextEditor, setShowChoiceTextEditor] = useState(false);
const [selectionMode, setSelectionMode] = useState("single"); // 'single' or 'multiple'
// Progress calculation
const getProgress = () => {
let progress = 0;
if (questionText) progress += 25;
if (addedChoices.length >= 2) progress += 25;
if (selectedAnswers.length > 0) progress += 25;
progress += (getClassificationProgress(values) / 100) * 25;
return Math.round(progress);
};
// Drag and drop handler
const handleOnDragEnd = (result) => {
if (!result.destination) return;
const newItems = Array.from(addedChoices);
const [reorderedItem] = newItems.splice(result.source.index, 1);
newItems.splice(result.destination.index, 0, reorderedItem);
setAddedChoices(newItems);
};
// Choice handlers
const saveChoices = () => {
if (isEditMode && selectedChoice) {
const updatedItems = addedChoices.map((choice) =>
choice.id === selectedChoice.id ? { ...choice, text: choiceTextEditor } : choice
);
setAddedChoices(updatedItems);
setEditMode(false);
} else {
setAddedChoices([...addedChoices, { id: Date.now(), text: choiceTextEditor }]);
}
setChoiceTextEditor("");
setSelectedChoice(null);
setShowChoiceTextEditor(false);
};
const clickEditChoice = (choice) => {
setShowChoiceTextEditor(true);
setChoiceTextEditor(choice.text);
setSelectedChoice(choice);
setEditMode(true);
};
const cancelChoices = () => {
setChoiceTextEditor("");
setShowChoiceTextEditor(false);
setSelectedChoice(null);
setEditMode(false);
};
const deleteChoice = (choice) => {
setAddedChoices(addedChoices.filter((c) => c.id !== choice.id));
setSelectedAnswers(selectedAnswers.filter((answer) => answer !== choice.text));
};
const toggleAnswer = (choiceText) => {
if (selectionMode === "single") {
setSelectedAnswers([choiceText]);
} else {
setSelectedAnswers((prev) =>
prev.includes(choiceText) ? prev.filter((c) => c !== choiceText) : [...prev, choiceText]
);
}
};
const hasSelectedAnswer = () => {
if (addedChoices.length < 2) {
setDisplayError({ status: true, message: "Please add at least 2 choices before saving." });
return false;
}
const seen = new Set();
const hasDuplicates = addedChoices.some((choice) => {
const key = getChoiceComparisonKey(choice.text);
if (seen.has(key)) return true;
seen.add(key);
return false;
});
if (hasDuplicates) {
setDisplayError({
status: true,
message: "Duplicate choices detected. Please ensure all choices are unique.",
});
return false;
}
if (selectedAnswers.length === 0) {
setDisplayError({ status: true, message: "Please select at least one correct answer." });
return false;
}
setDisplayError({ status: false, message: "" });
return true;
};
const getCorrectLetter = () => {
const correctChoices = addedChoices?.filter((choice) => selectedAnswers.includes(choice.text));
return correctChoices?.map((choice) => letters[addedChoices?.indexOf(choice)]).join(", ");
};
// Reset all values
const handleReset = () => {
setQuestionText("");
setQuestionDetailsText("");
setAnswerDetailsText("");
setAddedChoices([]);
setSelectedAnswers([]);
setSelectionMode("single");
setDisplayError({ status: false, message: "" });
resetFields();
};
// Submit handler - SAME PAYLOAD STRUCTURE
const createNewQuestion = async () => {
if (!hasSelectedAnswer()) return;
const payload = {
...buildBasePayload("Multiple-choice", [...selectedAnswers]),
choices: [...addedChoices],
};
await submitQuestion(payload, () => {
setAddedChoices([]);
setSelectedAnswers([]);
});
};
// Dialog management
const getActiveDialog = () => {
if (showQuestionTextEditor)
return {
type: "question",
content: questionTextEditor,
setContent: setQuestionTextEditor,
save: saveQuestion,
cancel: cancelQuestion,
};
if (showChoiceTextEditor)
return {
type: "choice",
content: choiceTextEditor,
setContent: setChoiceTextEditor,
save: saveChoices,
cancel: cancelChoices,
};
Iif (showAnswerDetailsTextEditor)
return {
type: "answerDetails",
content: answerDetailsTextEditor,
setContent: setAnswerDetailsTextEditor,
save: saveAnswerDetails,
cancel: cancelEditAnswerDetails,
};
Iif (showQuestionDetailsTextEditor)
return {
type: "questionDetails",
content: questionDetailsTextEditor,
setContent: setQuestionDetailsTextEditor,
save: saveQuestionDetails,
cancel: cancelQuestionDetails,
};
return null;
};
const activeDialog = getActiveDialog();
// Load edit data
useEffect(() => {
loadEditData((data) => {
setAddedChoices(data.choices || []);
setSelectedAnswers(data.correctAnswer?.answers || []);
});
}, []);
// Step validation
const isStepComplete = (step) => {
switch (step) {
case 0:
return !!questionText;
case 1:
return addedChoices.length >= 2 && selectedAnswers.length > 0;
case 2:
return values.assignmentType && values.questionPoints;
default:
return false;
}
};
return (
<Box className="mcq-v2-container" sx={editorContainerSx()}>
<SaveProgress />
<UnsavedChangesDialog blocker={navigationBlocker} />
{/* Dialog */}
{activeDialog && (
<TextEditorDialog
open={true}
editorType={activeDialog.type}
isEditMode={isEditMode}
editContent={activeDialog.content}
setEditContent={activeDialog.setContent}
onSave={activeDialog.save}
onCancel={activeDialog.cancel}
onImageUpload={handleImageUpload}
/>
)}
{/* Header */}
<Paper className="mcq-v2-header" elevation={0} sx={editorHeaderSx()}>
<Box className="mcq-v2-header-content">
<Box className="mcq-v2-header-left">
<QuizIcon sx={{ fontSize: 28, color: "primary.main" }} />
<Box>
<Typography variant="h5" fontWeight={600}>
{editQuestion ? "Edit Question" : "Create Multiple Choice Question"}
</Typography>
<Typography variant="body2" color="text.secondary">
{editQuestion
? "Update your question details"
: "Build an engaging multiple choice question"}
</Typography>
</Box>
</Box>
<Box className="mcq-v2-header-actions">
<Button variant="outlined" color="inherit" onClick={handleCancel} startIcon={<CloseIcon />}>
Cancel
</Button>
<Button variant="outlined" color="warning" onClick={handleReset} startIcon={<RestartAltIcon />}>
Reset
</Button>
<Box sx={{ display: "flex", alignItems: "center", gap: 0.5 }}>
<Button
variant="contained"
color="primary"
onClick={createNewQuestion}
startIcon={<SaveIcon />}
>
{editQuestion ? "Update" : "Save Question"}
</Button>
<Tooltip
title={
<Box sx={{ p: 1 }}>
<Typography variant="subtitle2" sx={{ fontWeight: 600, mb: 1 }}>
Required Fields:
</Typography>
<Stack spacing={0.5}>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{questionText ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
Question text
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{addedChoices.length >= 2 ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
At least 2 answer choices
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{selectedAnswers.length > 0 ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
Mark correct answer(s)
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{values.assignmentType ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
Assignment type
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{values.questionPoints ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
Question points
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{values.keywords?.length > 0 ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
At least 1 keyword
</Typography>
<Typography
variant="caption"
sx={{ display: "flex", alignItems: "center", gap: 0.5 }}
>
{values.assignmentDifficulty ? (
<CheckCircleIcon fontSize="small" color="success" />
) : (
<CheckCircleOutlineIcon fontSize="small" />
)}
Difficulty level
</Typography>
</Stack>
</Box>
}
arrow
placement="bottom-end"
>
<IconButton size="small" sx={{ color: "primary.main" }}>
<HelpOutlineIcon fontSize="small" />
</IconButton>
</Tooltip>
</Box>
</Box>
</Box>
{/* Progress bar */}
<Box className="mcq-v2-progress">
<LinearProgress
variant="determinate"
value={getProgress()}
color="success"
sx={{ height: 6, borderRadius: 3 }}
/>
<Typography variant="caption" color="text.secondary" sx={{ mt: 0.5 }}>
{getProgress()}% complete
</Typography>
</Box>
</Paper>
{/* Error Alert */}
{displayError.status && (
<Alert
severity="error"
sx={{ mx: 3, mt: 2 }}
onClose={() => setDisplayError({ status: false, message: "" })}
>
{displayError.message}
</Alert>
)}
{/* Question Settings Validation Errors */}
{Object.keys(errors).some((key) => touched[key]) && (
<Alert severity="error" sx={{ mx: 3, mt: 2 }}>
<Typography variant="body2" fontWeight={600} sx={{ mb: 0.5 }}>
Please complete the required question settings:
</Typography>
<Stack spacing={0.25}>
{Object.entries(errors).map(([key, message]) =>
touched[key] ? (
<Typography key={key} variant="caption">
• {message}
</Typography>
) : null
)}
</Stack>
</Alert>
)}
{/* Main Content */}
<Box className="mcq-v2-main">
{/* Left Panel - Question & Choices */}
<Box className="mcq-v2-left-panel">
{/* Question Card */}
<Card className="mcq-v2-card" sx={editorCardSx(theme)}>
<CardContent>
<Box className="mcq-v2-card-header">
<Box className="mcq-v2-card-title">
<HelpOutlineIcon color="primary" />
<Typography variant="h6">Question</Typography>
{questionText && <CheckCircleIcon color="success" fontSize="small" />}
</Box>
<Button
variant={questionText ? "outlined" : "contained"}
size="small"
startIcon={questionText ? <EditIcon /> : <AddIcon />}
onClick={clickQuestionButton}
>
{questionText ? "Edit" : "Add Question"}
</Button>
</Box>
{questionText ? (
<RichTextContent content={questionText} sx={{ padding: "6px 10px" }} />
) : (
<Box className="mcq-v2-empty-state" sx={emptyStateSx(theme)}>
<NoteAddIcon sx={{ fontSize: 48, color: "action.disabled" }} />
<Typography color="text.secondary">
Click "Add Question" to write your question
</Typography>
</Box>
)}
{/* Question Details - Collapsible */}
<Box sx={{ mt: 2 }}>
<Button
size="small"
onClick={() => setQuestionDetailsExpanded(!questionDetailsExpanded)}
endIcon={questionDetailsExpanded ? <ExpandLessIcon /> : <ExpandMoreIcon />}
sx={{ textTransform: "none" }}
>
Question Details (Optional)
{questionDetailsText && (
<CheckCircleIcon color="success" fontSize="small" sx={{ ml: 1 }} />
)}
</Button>
<Collapse in={questionDetailsExpanded}>
<Box sx={{ mt: 1 }}>
{questionDetailsText ? (
<Box>
<ReadOnlyMathEditor content={questionDetailsText} />
<IconButton
size="small"
onClick={clickQuestionDetailsButton}
sx={{ position: "absolute", top: 8, right: 8 }}
>
<EditIcon fontSize="small" />
</IconButton>
</Box>
) : (
<Button
variant="text"
size="small"
startIcon={<AddIcon />}
onClick={clickQuestionDetailsButton}
>
Add details or hints
</Button>
)}
</Box>
</Collapse>
</Box>
</CardContent>
</Card>
{/* Choices Card */}
<Card className="mcq-v2-card" sx={editorCardSx(theme)}>
<CardContent>
<Box className="mcq-v2-card-header">
<Box className="mcq-v2-card-title">
<ListAltIcon color="primary" />
<Typography variant="h6">Answer Choices</Typography>
<Chip
size="small"
label={`${addedChoices.length} choices`}
color={addedChoices.length >= 2 ? "success" : "warning"}
variant="filled"
sx={{ fontWeight: 500 }}
/>
</Box>
<Box sx={{ display: "flex", gap: 1, alignItems: "center" }}>
<Tooltip title="Single answer allows only one correct choice. Multiple allows selecting several.">
<Box sx={{ display: "flex", alignItems: "center", gap: 0.5 }}>
<Typography variant="caption" color="text.secondary">
Mode:
</Typography>
<Chip
size="small"
label={selectionMode === "single" ? "Single" : "Multiple"}
onClick={() => {
setSelectionMode(
selectionMode === "single" ? "multiple" : "single"
);
setSelectedAnswers([]);
}}
color="primary"
variant="filled"
sx={{ fontWeight: 500, cursor: "pointer" }}
/>
</Box>
</Tooltip>
</Box>
</Box>
{/* Choices List */}
<DragDropContext onDragEnd={handleOnDragEnd}>
<Droppable droppableId="choices-list">
{(provided) => (
<Box
{...provided.droppableProps}
ref={provided.innerRef}
className="mcq-v2-choices-list"
>
{addedChoices.length > 0 ? (
addedChoices.map((choice, index) => {
const isAnswer = selectedAnswers.includes(choice.text);
const surfaceBg = choiceRowSurfaceBg(theme, isAnswer);
return (
<Draggable
key={choice.id}
draggableId={choice.id.toString()}
index={index}
>
{(provided, snapshot) => (
<Paper
ref={provided.innerRef}
{...provided.draggableProps}
className={`mcq-v2-choice-item ${isAnswer ? "correct" : ""} ${snapshot.isDragging ? "dragging" : ""}`}
sx={{
bgcolor: `${surfaceBg} !important`,
...choiceItemBorderSx(theme, {
correct: isAnswer,
}),
}}
>
<Box
{...provided.dragHandleProps}
className="mcq-v2-drag-handle"
sx={dragHandleSx(theme)}
>
<DragIndicatorIcon fontSize="small" />
</Box>
<Box
className="mcq-v2-choice-letter"
sx={choiceBadgeSx(theme, {
correct: isAnswer,
})}
>
{letters[index]}
</Box>
<Box
className="mcq-v2-choice-content"
onClick={() => toggleAnswer(choice.text)}
>
<RichTextContent
key={`${choice.id}-${index}`}
content={choice.text}
/>
</Box>
<Box className="mcq-v2-choice-actions">
<Tooltip
title={
isAnswer
? "Correct answer"
: "Mark as correct"
}
>
<IconButton
size="small"
onClick={() =>
toggleAnswer(choice.text)
}
color={isAnswer ? "success" : "default"}
>
{isAnswer ? (
<CheckCircleIcon />
) : (
<CheckCircleOutlineIcon />
)}
</IconButton>
</Tooltip>
<IconButton
size="small"
onClick={() => clickEditChoice(choice)}
>
<EditIcon fontSize="small" />
</IconButton>
<IconButton
size="small"
onClick={() => deleteChoice(choice)}
color="error"
>
<DeleteOutlineIcon fontSize="small" />
</IconButton>
</Box>
</Paper>
)}
</Draggable>
);
})
) : (
<Box className="mcq-v2-empty-state" sx={emptyStateSx(theme)}>
<ListAltIcon sx={{ fontSize: 48, color: "action.disabled" }} />
<Typography color="text.secondary">
Add at least 2 answer choices
</Typography>
</Box>
)}
{provided.placeholder}
</Box>
)}
</Droppable>
</DragDropContext>
<Button
variant="outlined"
startIcon={<AddIcon />}
onClick={() => {
setShowChoiceTextEditor(true);
setEditMode(false);
}}
fullWidth
sx={{ mt: 2 }}
>
Add New Choice
</Button>
{/* Correct Answer Display */}
{selectedAnswers.length > 0 && (
<Box className="mcq-v2-correct-answer-badge" sx={correctAnswerBadgeSx(theme)}>
<CheckCircleIcon color="success" fontSize="small" />
<Typography variant="body2">
Correct Answer: <strong>{getCorrectLetter()}</strong>
</Typography>
</Box>
)}
</CardContent>
</Card>
{/* Answer Details Card - Collapsible */}
<Card className="mcq-v2-card" sx={editorCardSx(theme)}>
<CardContent>
<Box
className="mcq-v2-card-header clickable"
onClick={() => setAnswerDetailsExpanded(!answerDetailsExpanded)}
sx={cardHeaderHoverSx(theme)}
>
<Box className="mcq-v2-card-title">
<NoteAddIcon color="primary" />
<Typography variant="h6">Answer Explanation (Optional)</Typography>
{answerDetailsText && <CheckCircleIcon color="success" fontSize="small" />}
</Box>
{answerDetailsExpanded ? <ExpandLessIcon /> : <ExpandMoreIcon />}
</Box>
<Collapse in={answerDetailsExpanded}>
<Box sx={{ mt: 2 }}>
{answerDetailsText ? (
<Paper variant="outlined" sx={{ position: "relative" }}>
<ReadOnlyMathEditor content={answerDetailsText} />
<Box
sx={{
position: "absolute",
top: 8,
right: 8,
display: "flex",
gap: 0.5,
}}
>
<IconButton
size="small"
onClick={() => clickEditAnswerDetails(answerDetailsText)}
>
<EditIcon fontSize="small" />
</IconButton>
<IconButton size="small" onClick={deleteAnswerDetails} color="error">
<DeleteOutlineIcon fontSize="small" />
</IconButton>
</Box>
</Paper>
) : (
<Button
variant="outlined"
startIcon={<AddIcon />}
onClick={() => clickEditAnswerDetails("")}
fullWidth
>
Add Answer Explanation
</Button>
)}
</Box>
</Collapse>
</CardContent>
</Card>
</Box>
{/* Right Panel - Tips + Settings */}
<Box className="mcq-v2-right-panel">
<QuickTipsCard
className="mcq-v2-card mcq-v2-tips-card"
sx={{ ...editorCardSx(theme), ...tipsCardSx(theme) }}
tips={[
"Drag choices to reorder them",
"Click the checkmark to mark correct answers",
"Add at least 2 choices for a valid question",
'Use "Multiple" mode for questions with multiple correct answers',
]}
/>
<Card className="mcq-v2-card mcq-v2-settings-card" sx={editorCardSx(theme)}>
<CardContent>
<Box
className="mcq-v2-card-header clickable"
onClick={() => setSettingsExpanded(!settingsExpanded)}
sx={cardHeaderHoverSx(theme)}
>
<Box className="mcq-v2-card-title">
<SettingsIcon color="primary" />
<Typography variant="h6">Question Settings</Typography>
</Box>
{settingsExpanded ? <ExpandLessIcon /> : <ExpandMoreIcon />}
</Box>
<Collapse in={settingsExpanded}>
<Box sx={{ mt: 2 }}>
<QuestionSettings
values={values}
touched={touched}
errors={errors}
handleChange={handleChange}
handleBlur={handleBlur}
setFieldValue={setFieldValue}
setFieldTouched={setFieldTouched}
/>
</Box>
</Collapse>
</CardContent>
</Card>
</Box>
</Box>
</Box>
);
};
export default MainV2;
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