app/src/pages/exam/MarkSchemePage.tsx

502 lines
20 KiB
TypeScript

import React, { useCallback, useEffect, useMemo, useState } from 'react';
import { useNavigate, useParams } from 'react-router-dom';
import {
Alert,
Autocomplete,
Box,
Button,
Card,
CardContent,
Chip,
CircularProgress,
Container,
Divider,
FormControl,
Grid,
InputLabel,
MenuItem,
Paper,
Select,
Stack,
Tab,
Tabs,
TextField,
Typography,
} from '@mui/material';
import ArrowBackIcon from '@mui/icons-material/ArrowBack';
import SaveIcon from '@mui/icons-material/Save';
import SyncIcon from '@mui/icons-material/Sync';
import { logger } from '../../debugConfig';
import { examRepository } from '../../services/exam/examRepository';
import type {
ExamQuestion,
ExamTemplateDetail,
MarkScheme,
MarkSchemeType,
SpecPoint,
} from '../../types/exam.types';
type Drafts = Record<string, PartDraft>;
interface PartDraft {
max_marks: string;
answer_type: 'written' | 'mcq' | 'short' | 'diagram';
spec_ref: string;
schemeType: MarkSchemeType;
body: string;
notes: string;
}
const ANSWER_TYPES: Array<PartDraft['answer_type']> = ['written', 'short', 'mcq', 'diagram'];
const SCHEME_TYPES: Array<{ value: MarkSchemeType; label: string; helper: string }> = [
{ value: 'points', label: 'Points', helper: 'One mark point per line, e.g. "1 | Mentions resultant force".' },
{ value: 'levels', label: 'Levels', helper: 'One level per line, e.g. "L2 | 3-4 | Clear linked explanation".' },
{ value: 'parts', label: 'Parts', helper: 'One sub-part per line, e.g. "a | 2 | Correct substitution".' },
{ value: 'checklist', label: 'Checklist', helper: 'One checklist item per line, e.g. "1 | Correct unit".' },
{ value: 'free', label: 'Free text', helper: 'Paste or type the mark scheme exactly as it should be stored.' },
];
function deriveSpecCode(template: ExamTemplateDetail | null): string {
const examCode = template?.exam_code ?? '';
const match = examCode.match(/^([A-Z]+-[A-Z]+-\d+)/i);
return match?.[1] ?? '';
}
function schemeToDraft(scheme: MarkScheme | null | undefined): Pick<PartDraft, 'schemeType' | 'body' | 'notes'> {
const type = (scheme?.type as MarkSchemeType | undefined) ?? 'points';
const notes = typeof scheme?.notes === 'string' ? scheme.notes : '';
if (type === 'levels' && Array.isArray(scheme?.levels)) {
return {
schemeType: 'levels',
body: scheme.levels.map((l) => `${l.level ?? ''} | ${l.min ?? 0}-${l.max ?? 0} | ${l.descriptor ?? ''}`).join('\n'),
notes,
};
}
if (type === 'parts' && Array.isArray(scheme?.parts)) {
return {
schemeType: 'parts',
body: scheme.parts.map((p) => `${p.label ?? ''} | ${p.marks ?? 0} | ${p.guidance ?? ''}`).join('\n'),
notes,
};
}
if (type === 'checklist' && Array.isArray(scheme?.checklist)) {
return {
schemeType: 'checklist',
body: scheme.checklist.map((item) => `${item.marks ?? 1} | ${item.text ?? ''}`).join('\n'),
notes,
};
}
if (type === 'free') {
return { schemeType: 'free', body: typeof scheme?.text === 'string' ? scheme.text : '', notes };
}
if (Array.isArray(scheme?.points)) {
return {
schemeType: 'points',
body: scheme.points.map((p) => `${p.mark ?? 1} | ${p.text ?? ''}`).join('\n'),
notes,
};
}
return { schemeType: type, body: '', notes };
}
function parseNumber(value: string, fallback = 0): number {
const parsed = Number(value);
return Number.isFinite(parsed) ? parsed : fallback;
}
function splitLine(line: string): string[] {
return line.split('|').map((part) => part.trim());
}
function draftToScheme(draft: PartDraft): MarkScheme {
const lines = draft.body.split('\n').map((line) => line.trim()).filter(Boolean);
if (draft.schemeType === 'free') return { type: 'free', text: draft.body, notes: draft.notes || undefined };
if (draft.schemeType === 'levels') {
return {
type: 'levels',
levels: lines.map((line, idx) => {
const [level, range, descriptor] = splitLine(line);
const [minRaw, maxRaw] = (range || '').split('-').map((part) => part.trim());
return {
level: level || `L${idx + 1}`,
min: parseNumber(minRaw, 0),
max: parseNumber(maxRaw, parseNumber(minRaw, 0)),
descriptor: descriptor || line,
};
}),
notes: draft.notes || undefined,
};
}
if (draft.schemeType === 'parts') {
return {
type: 'parts',
parts: lines.map((line, idx) => {
const [label, marks, guidance] = splitLine(line);
return { label: label || String(idx + 1), marks: parseNumber(marks, 1), guidance: guidance || line };
}),
notes: draft.notes || undefined,
};
}
if (draft.schemeType === 'checklist') {
return {
type: 'checklist',
checklist: lines.map((line) => {
const [marks, text] = splitLine(line);
return { marks: parseNumber(marks, 1), text: text || line };
}),
notes: draft.notes || undefined,
};
}
return {
type: 'points',
points: lines.map((line) => {
const [mark, text] = splitLine(line);
return { mark: parseNumber(mark, 1), text: text || line };
}),
notes: draft.notes || undefined,
};
}
function makeDraft(question: ExamQuestion): PartDraft {
const scheme = schemeToDraft(question.mark_scheme);
return {
max_marks: String(question.max_marks ?? 0),
answer_type: (question.answer_type as PartDraft['answer_type'] | null) ?? 'written',
spec_ref: question.spec_ref ?? '',
schemeType: scheme.schemeType,
body: scheme.body,
notes: scheme.notes,
};
}
const MarkSchemePage: React.FC = () => {
const navigate = useNavigate();
const { templateId } = useParams<{ templateId: string }>();
const [template, setTemplate] = useState<ExamTemplateDetail | null>(null);
const [selectedId, setSelectedId] = useState<string | null>(null);
const [drafts, setDrafts] = useState<Drafts>({});
const [specCode, setSpecCode] = useState('');
const [specPoints, setSpecPoints] = useState<SpecPoint[]>([]);
const [loading, setLoading] = useState(true);
const [savingId, setSavingId] = useState<string | null>(null);
const [syncing, setSyncing] = useState(false);
const [error, setError] = useState<string | null>(null);
const [notice, setNotice] = useState<string | null>(null);
const [specEndpointMissing, setSpecEndpointMissing] = useState(false);
const load = useCallback(async () => {
if (!templateId) return;
setLoading(true);
setError(null);
try {
const detail = await examRepository.getTemplate(templateId);
const leafParts = detail.questions.filter((q) => !q.is_container).sort((a, b) => a.order - b.order || a.label.localeCompare(b.label));
setTemplate(detail);
setSelectedId((prev) => prev ?? leafParts[0]?.id ?? null);
setDrafts(Object.fromEntries(leafParts.map((q) => [q.id, makeDraft(q)])));
setSpecCode((prev) => prev || deriveSpecCode(detail));
} catch (e) {
const msg = e instanceof Error ? e.message : String(e);
logger.error('cc-exam-marker', 'Failed to load mark scheme template', { message: msg, templateId });
setError(msg);
} finally {
setLoading(false);
}
}, [templateId]);
useEffect(() => {
void load();
}, [load]);
const loadSpecPoints = useCallback(async () => {
if (!specCode.trim()) return;
setSpecEndpointMissing(false);
try {
setSpecPoints(await examRepository.listSpecPoints(specCode.trim()));
} catch (e) {
const msg = e instanceof Error ? e.message : String(e);
logger.warn('cc-exam-marker', 'SpecPoint endpoint unavailable; falling back to manual spec_ref entry', { message: msg, specCode });
setSpecEndpointMissing(true);
setSpecPoints([]);
}
}, [specCode]);
useEffect(() => {
void loadSpecPoints();
}, [loadSpecPoints]);
const parts = useMemo(
() => (template?.questions ?? []).filter((q) => !q.is_container).sort((a, b) => a.order - b.order || a.label.localeCompare(b.label)),
[template],
);
const selected = parts.find((p) => p.id === selectedId) ?? null;
const draft = selected ? drafts[selected.id] : null;
const selectedSpecPoint = draft?.spec_ref ? specPoints.find((p) => p.ref === draft.spec_ref) ?? null : null;
const updateDraft = (questionId: string, patch: Partial<PartDraft>) => {
setDrafts((prev) => ({ ...prev, [questionId]: { ...prev[questionId], ...patch } }));
};
const savePart = async (question: ExamQuestion) => {
const partDraft = drafts[question.id];
if (!partDraft) return;
setSavingId(question.id);
setError(null);
setNotice(null);
try {
await examRepository.patchQuestion(question.id, {
max_marks: parseNumber(partDraft.max_marks, question.max_marks),
answer_type: partDraft.answer_type,
mark_scheme: draftToScheme(partDraft),
spec_ref: partDraft.spec_ref.trim() || null,
});
setTemplate((prev) => {
if (!prev) return prev;
return {
...prev,
questions: prev.questions.map((q) => q.id === question.id ? {
...q,
max_marks: parseNumber(partDraft.max_marks, question.max_marks),
answer_type: partDraft.answer_type,
mark_scheme: draftToScheme(partDraft),
spec_ref: partDraft.spec_ref.trim() || null,
} : q),
};
});
setNotice(`Saved mark scheme for Part ${question.label}.`);
} catch (e) {
const msg = e instanceof Error ? e.message : String(e);
logger.error('cc-exam-marker', 'Save mark scheme failed', { message: msg, questionId: question.id });
setError(msg);
} finally {
setSavingId(null);
}
};
const syncGraph = async () => {
if (!templateId) return;
setSyncing(true);
setError(null);
setNotice(null);
try {
const res = await examRepository.syncTemplateToGraph(templateId);
setNotice(`Neo4j projection ${res.status}; ${JSON.stringify(res.projection ?? {})}`);
} catch (e) {
const msg = e instanceof Error ? e.message : String(e);
logger.error('cc-exam-marker', 'Neo4j sync failed', { message: msg, templateId });
setError(msg);
} finally {
setSyncing(false);
}
};
if (loading) {
return <Box sx={{ display: 'flex', justifyContent: 'center', py: 10 }}><CircularProgress /></Box>;
}
return (
<Container maxWidth="xl" sx={{ py: 4 }}>
<Stack spacing={3}>
<Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', flexWrap: 'wrap', gap: 2 }}>
<Box>
<Button startIcon={<ArrowBackIcon />} onClick={() => navigate('/exam-marker')} sx={{ mb: 1 }}>
Back to templates
</Button>
<Typography variant="h3" component="h1">Mark Scheme editor</Typography>
<Typography variant="body1" color="text.secondary">
{template?.title ?? 'Template'} · Edit per-Part mark schemes and link assessed specification points.
</Typography>
</Box>
<Stack direction="row" spacing={1}>
{templateId && <Button variant="outlined" onClick={() => navigate(`/exam-marker/${templateId}/setup`)}>Setup canvas</Button>}
<Button variant="outlined" startIcon={<SyncIcon />} onClick={syncGraph} disabled={syncing || !templateId}>
{syncing ? 'Syncing…' : 'Sync to graph'}
</Button>
</Stack>
</Box>
{error && <Alert severity="error" onClose={() => setError(null)}>{error}</Alert>}
{notice && <Alert severity="success" onClose={() => setNotice(null)}>{notice}</Alert>}
{specEndpointMissing && (
<Alert severity="warning">
SpecPoint picker endpoint was not available from this API build. You can still type a spec_ref manually; the backend projection resolves it during neo4j-sync.
</Alert>
)}
<Paper variant="outlined" sx={{ p: 2 }}>
<Grid container spacing={2} alignItems="center">
<Grid item xs={12} md={4}>
<TextField
label="Specification code"
value={specCode}
onChange={(e) => setSpecCode(e.target.value)}
fullWidth
helperText="Example: AQA-PHYS-8463. Used by the SpecPoint picker."
/>
</Grid>
<Grid item xs={12} md={8}>
<Typography variant="body2" color="text.secondary">
Save writes PATCH /api/exam/questions/:id. Spec refs are persisted on the Part and projected as (:Part)-[:ASSESSES]-&gt;(:SpecPoint).
</Typography>
</Grid>
</Grid>
</Paper>
{parts.length === 0 ? (
<Alert severity="info">
This template has no Parts yet. Draw Part boxes on the setup canvas first, then return here to enter mark schemes.
</Alert>
) : (
<Grid container spacing={3}>
<Grid item xs={12} md={3}>
<Card variant="outlined">
<CardContent>
<Typography variant="h6" gutterBottom>Parts</Typography>
<Tabs
orientation="vertical"
value={selectedId ?? false}
onChange={(_, value) => setSelectedId(value)}
variant="scrollable"
sx={{ borderRight: 1, borderColor: 'divider', maxHeight: '65vh' }}
>
{parts.map((part) => (
<Tab
key={part.id}
value={part.id}
label={
<Box sx={{ textAlign: 'left', width: '100%' }}>
<Typography variant="body2">Part {part.label}</Typography>
<Stack direction="row" spacing={0.5} sx={{ mt: 0.5, flexWrap: 'wrap' }}>
<Chip size="small" label={`${drafts[part.id]?.max_marks ?? part.max_marks} marks`} />
{(drafts[part.id]?.spec_ref || part.spec_ref) && <Chip size="small" color="info" label={drafts[part.id]?.spec_ref || part.spec_ref || ''} />}
</Stack>
</Box>
}
/>
))}
</Tabs>
</CardContent>
</Card>
</Grid>
<Grid item xs={12} md={9}>
{selected && draft && (
<Card variant="outlined">
<CardContent>
<Stack spacing={3}>
<Box sx={{ display: 'flex', justifyContent: 'space-between', gap: 2, flexWrap: 'wrap' }}>
<Box>
<Typography variant="h5">Part {selected.label}</Typography>
<Typography variant="body2" color="text.secondary">
{selected.parent_id ? `Parent question ${selected.parent_id}` : 'No parent question'}
</Typography>
</Box>
<Button
variant="contained"
startIcon={<SaveIcon />}
disabled={savingId === selected.id}
onClick={() => savePart(selected)}
>
{savingId === selected.id ? 'Saving…' : 'Save part'}
</Button>
</Box>
<Grid container spacing={2}>
<Grid item xs={12} sm={4}>
<TextField
label="Max marks"
value={draft.max_marks}
onChange={(e) => updateDraft(selected.id, { max_marks: e.target.value })}
type="number"
inputProps={{ min: 0, step: 0.5 }}
fullWidth
/>
</Grid>
<Grid item xs={12} sm={4}>
<FormControl fullWidth>
<InputLabel id="answer-type-label">Answer type</InputLabel>
<Select
labelId="answer-type-label"
label="Answer type"
value={draft.answer_type}
onChange={(e) => updateDraft(selected.id, { answer_type: e.target.value as PartDraft['answer_type'] })}
>
{ANSWER_TYPES.map((type) => <MenuItem key={type} value={type}>{type}</MenuItem>)}
</Select>
</FormControl>
</Grid>
<Grid item xs={12} sm={4}>
<FormControl fullWidth>
<InputLabel id="scheme-type-label">Scheme form</InputLabel>
<Select
labelId="scheme-type-label"
label="Scheme form"
value={draft.schemeType}
onChange={(e) => updateDraft(selected.id, { schemeType: e.target.value as MarkSchemeType })}
>
{SCHEME_TYPES.map((type) => <MenuItem key={type.value} value={type.value}>{type.label}</MenuItem>)}
</Select>
</FormControl>
</Grid>
</Grid>
<Autocomplete
options={specPoints}
value={selectedSpecPoint}
onChange={(_, value) => updateDraft(selected.id, { spec_ref: value?.ref ?? '' })}
getOptionLabel={(option) => `${option.ref}${option.description}`}
isOptionEqualToValue={(option, value) => option.ref === value.ref}
renderInput={(params) => (
<TextField
{...params}
label="SpecPoint picker"
helperText={specPoints.length ? 'Choose a seeded SpecPoint, or type below to override.' : 'No picker results loaded; type spec_ref manually below.'}
/>
)}
/>
<TextField
label="spec_ref"
value={draft.spec_ref}
onChange={(e) => updateDraft(selected.id, { spec_ref: e.target.value })}
helperText="Persisted to exam_questions.spec_ref; graph sync creates the ASSESSES edge when the ref matches a seeded SpecPoint."
fullWidth
/>
<Divider />
<TextField
label={`${SCHEME_TYPES.find((type) => type.value === draft.schemeType)?.label ?? 'Mark scheme'} body`}
value={draft.body}
onChange={(e) => updateDraft(selected.id, { body: e.target.value })}
helperText={SCHEME_TYPES.find((type) => type.value === draft.schemeType)?.helper}
multiline
minRows={10}
fullWidth
/>
<TextField
label="Internal marking notes"
value={draft.notes}
onChange={(e) => updateDraft(selected.id, { notes: e.target.value })}
multiline
minRows={3}
fullWidth
/>
</Stack>
</CardContent>
</Card>
)}
</Grid>
</Grid>
)}
</Stack>
</Container>
);
};
export default MarkSchemePage;