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* EventInfoTab (Epic 14, Story 14.F.2) — the "Info" sub-tab of Details.
*
* In-tab editable event identity (replaces the Phase-A read-only summary +
* edit-modal): theme image (replace via FileUpload / ✨ AI-generate), Title,
* Description (+ ✨ AI-generate), the selected Topic chip + "Change topic", and
* When & where. Reuses the shared zod schema + `useUpdateEvent` (recompose, not
* rewrite; NFR9) — saves changed fields on an explicit Save. "Change topic" is
* an interim route nav; Story 14.F.3 swaps it for the focused overlay.
*/
import React, { useEffect, useMemo, useRef, useState } from 'react';
import { useForm, Controller, type Resolver } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';
import {
Alert,
Box,
Button,
Chip,
CircularProgress,
IconButton,
Paper,
Stack,
TextField,
Tooltip,
Typography,
} from '@mui/material';
import {
AutoAwesome,
Topic as TopicIcon,
Delete as DeleteIcon,
PhotoCamera as ReplaceIcon,
} from '@mui/icons-material';
import { useTranslation } from 'react-i18next';
import { useUpdateEvent } from '@/hooks/useEvents';
import { useFeatureFlags } from '@/hooks/useFeatureFlags';
import { useFileUpload } from '@/hooks/useFileUpload/useFileUpload';
import { topicService } from '@/services/topicService';
import type { Topic } from '@/types/topic.types';
import type { Event, EventDetailUI, EventUI } from '@/types/event.types';
import { EventTypeSelector } from '@/components/organizer/EventTypeSelector/EventTypeSelector';
import { AiAssistDrawer } from './AiAssistDrawer';
import { TopicSelectionOverlay } from './topicOverlay/TopicSelectionOverlay';
import {
createEventSchema,
normalizeEventType,
transformDatesForApi,
getChangedFields,
type EventFormData,
type PartialEventFormData,
} from '@/components/organizer/EventManagement/eventFormSchema';
interface EventInfoTabProps {
event: Event | EventDetailUI;
eventCode: string;
}
/** Date-time ISO → YYYY-MM-DD for date inputs. */
function toDateInput(value?: string): string {
Iif (!value) return '';
const d = new Date(value);
return Number.isNaN(d.getTime()) ? '' : d.toISOString().slice(0, 10);
}
export const EventInfoTab: React.FC<EventInfoTabProps> = ({ event, eventCode }) => {
const { t } = useTranslation('events');
const { aiContentEnabled } = useFeatureFlags();
const updateEvent = useUpdateEvent();
const [aiDrawerOpen, setAiDrawerOpen] = useState(false);
const [topicOverlayOpen, setTopicOverlayOpen] = useState(false);
const [themeImageUploadId, setThemeImageUploadId] = useState<string | undefined>();
const [topic, setTopic] = useState<Topic | null>(null);
const [saved, setSaved] = useState(false);
const [saveError, setSaveError] = useState<string | null>(null);
// Theme image: a custom full-width preview with overlay actions (AI / replace /
// delete), driven by the shared presigned-upload hook.
const fileInputRef = useRef<HTMLInputElement>(null);
const [previewUrl, setPreviewUrl] = useState<string | null>(null);
const [imageRemoved, setImageRemoved] = useState(false);
const { uploadFile, isUploading } = useFileUpload({
uploadEndpoint: '/logos/presigned-url',
maxFileSize: 5 * 1024 * 1024,
allowedTypes: ['image/png', 'image/jpeg', 'image/svg+xml'],
onUploadSuccess: (data) => {
setThemeImageUploadId(data.uploadId);
setPreviewUrl(data.tempFileUrl ?? null);
setImageRemoved(false);
setSaved(false);
},
onUploadError: (err) => setSaveError(err.message),
});
const shownImage = imageRemoved ? null : (previewUrl ?? event.themeImageUrl ?? null);
const ev = event as EventUI;
const initialValues = useMemo<EventFormData>(
() => ({
eventNumber: ev.eventNumber ?? 0,
title: event.title ?? '',
description: event.description ?? '',
date: toDateInput(ev.date),
registrationDeadline: toDateInput(ev.registrationDeadline),
venueName: ev.venueName ?? '',
venueAddress: ev.venueAddress ?? '',
venueCapacity: ev.venueCapacity ?? 0,
workflowState: ev.workflowState,
eventType: normalizeEventType(ev.eventType),
}),
[event, ev]
);
const schema = useMemo(() => createEventSchema(t), [t]);
const {
control,
handleSubmit,
reset,
setValue,
formState: { errors, isDirty },
} = useForm<EventFormData>({
// z.coerce.number() infers `unknown` for inputs, so the resolver type needs a cast
// (same pattern as EventForm).
resolver: zodResolver(schema) as unknown as Resolver<EventFormData>,
defaultValues: initialValues,
mode: 'onBlur',
});
useEffect(() => {
reset(initialValues);
}, [initialValues, reset]);
// Resolve the selected topic for the chip.
useEffect(() => {
const code = event.topicCode;
Iif (!code) {
setTopic(null);
return;
}
topicService
.getTopicById(code)
.then(setTopic)
.catch(() => setTopic(null));
}, [event.topicCode]);
const onSave = handleSubmit(async (data) => {
setSaved(false);
setSaveError(null);
const changed: PartialEventFormData = getChangedFields(data, initialValues);
const payload = transformDatesForApi(changed);
Iif (imageRemoved) {
// The PATCH endpoint clears the theme image when themeImageUploadId is blank.
(payload as Record<string, unknown>).themeImageUploadId = '';
} else if (IthemeImageUploadId) {
(payload as Record<string, unknown>).themeImageUploadId = themeImageUploadId;
}
Iif (Object.keys(payload).length === 0) return;
try {
await updateEvent.mutateAsync({ eventCode, data: payload });
setThemeImageUploadId(undefined);
setImageRemoved(false);
setSaved(true);
} catch (e) {
setSaveError(
e instanceof Error ? e.message : t('errors.saveFailed', 'Could not save. Please try again.')
);
}
});
const dirty = isDirty || !!themeImageUploadId || imageRemoved;
const cardSx = { p: 2 } as const;
return (
<Stack spacing={2} data-testid="event-info-tab">
{/* Two columns (per prototype #p-details): identity on the left, topic + when/where on the right. */}
<Box
sx={{
display: 'grid',
gridTemplateColumns: { xs: '1fr', md: '1fr 1fr' },
gap: 2,
alignItems: 'start',
}}
>
{/* LEFT column */}
<Stack spacing={2}>
{/* Theme image card — full-width banner with overlay actions */}
<Paper variant="outlined" sx={{ overflow: 'hidden' }}>
<Box sx={{ position: 'relative' }} data-testid="info-theme-image">
{shownImage ? (
<Box
component="img"
src={shownImage}
alt={t('form.themeImageAlt', 'Event theme image')}
sx={{ width: '100%', height: 180, objectFit: 'cover', display: 'block' }}
/>
) : (
<Box
onClick={() => fileInputRef.current?.click()}
sx={{
width: '100%',
height: 180,
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
bgcolor: 'action.hover',
cursor: 'pointer',
}}
>
<Typography variant="body2" color="text.secondary">
{isUploading
? t('eventPage.details.uploadingImage', 'Uploading…')
: t('eventPage.details.uploadImage', 'Click to upload a theme image')}
</Typography>
</Box>
)}
{/* Top-right: replace */}
<Tooltip title={t('eventPage.details.replaceImage', 'Replace image')}>
<span style={{ position: 'absolute', top: 8, right: 8 }}>
<IconButton
size="small"
sx={{ bgcolor: 'background.paper', '&:hover': { bgcolor: 'background.paper' } }}
onClick={() => fileInputRef.current?.click()}
disabled={isUploading}
data-testid="info-replace-theme"
>
<ReplaceIcon fontSize="small" />
</IconButton>
</span>
</Tooltip>
{/* Bottom-left: AI-generate */}
{aiContentEnabled && (
<Tooltip title={t('eventPage.details.aiGenerateImage', '✨ Generate (AI)')}>
<IconButton
size="small"
sx={{
position: 'absolute',
bottom: 8,
left: 8,
bgcolor: 'background.paper',
'&:hover': { bgcolor: 'background.paper' },
}}
onClick={() => setAiDrawerOpen(true)}
data-testid="info-ai-theme"
>
<AutoAwesome fontSize="small" />
</IconButton>
</Tooltip>
)}
{/* Bottom-right: delete badge */}
{shownImage && (
<Tooltip title={t('form.removeThemeImage', 'Remove image')}>
<IconButton
size="small"
color="error"
sx={{
position: 'absolute',
bottom: 8,
right: 8,
bgcolor: 'background.paper',
'&:hover': { bgcolor: 'background.paper' },
}}
onClick={() => {
setImageRemoved(true);
setPreviewUrl(null);
setThemeImageUploadId('');
setSaved(false);
}}
data-testid="info-delete-theme"
>
<DeleteIcon fontSize="small" />
</IconButton>
</Tooltip>
)}
<input
ref={fileInputRef}
type="file"
hidden
accept="image/png,image/jpeg,image/svg+xml"
onChange={(e) => {
const file = e.target.files?.[0];
if (file) void uploadFile(file);
e.target.value = '';
}}
/>
</Box>
</Paper>
{/* Event details card */}
<Paper variant="outlined" sx={cardSx}>
<Typography variant="subtitle1" gutterBottom>
{t('eventPage.details.heading', 'Event details')}
</Typography>
<Stack spacing={2}>
<Controller
name="title"
control={control}
render={({ field }) => (
<TextField
{...field}
label={t('form.title', 'Title')}
fullWidth
error={!!errors.title}
helperText={errors.title?.message}
inputProps={{ 'data-testid': 'info-title-field' }}
/>
)}
/>
<Controller
name="description"
control={control}
render={({ field }) => (
<TextField
{...field}
label={t('form.description', 'Description')}
fullWidth
multiline
minRows={4}
error={!!errors.description}
helperText={errors.description?.message}
inputProps={{ 'data-testid': 'info-description-field' }}
/>
)}
/>
{aiContentEnabled && (
<Box>
<Button
size="small"
startIcon={<AutoAwesome />}
onClick={() => setAiDrawerOpen(true)}
data-testid="info-ai-assist"
>
{t(
'eventPage.details.aiGenerateDescription',
'✨ Generate description with AI'
)}
</Button>
</Box>
)}
</Stack>
</Paper>
</Stack>
{/* RIGHT column */}
<Stack spacing={2}>
{/* Topic card */}
<Paper variant="outlined" sx={cardSx}>
<Typography variant="subtitle1" gutterBottom>
{t('eventPage.overview.selectedTopic', 'Selected Topic')}
</Typography>
<Stack direction="row" spacing={1} alignItems="center" flexWrap="wrap">
{topic || event.topicCode ? (
<Chip
icon={<TopicIcon />}
label={topic?.title ?? event.topicCode}
color="primary"
variant="outlined"
/>
) : (
<Typography variant="body2" color="text.secondary">
{t('eventPage.details.noTopic', 'No topic selected yet')}
</Typography>
)}
<Button
size="small"
variant="outlined"
onClick={() => setTopicOverlayOpen(true)}
data-testid="info-change-topic"
>
{t('eventPage.details.changeTopic', 'Change topic')}
</Button>
</Stack>
</Paper>
{/* When & where card */}
<Paper variant="outlined" sx={cardSx}>
<Typography variant="subtitle1" gutterBottom>
{t('eventPage.details.whenWhere', 'When & where')}
</Typography>
<Stack spacing={2}>
{/* Date + registration deadline on one line */}
<Stack direction={{ xs: 'column', sm: 'row' }} spacing={2}>
<Controller
name="date"
control={control}
render={({ field }) => (
<TextField
{...field}
type="date"
label={t('form.eventDate', 'Event date')}
InputLabelProps={{ shrink: true }}
error={!!errors.date}
helperText={errors.date?.message}
fullWidth
inputProps={{ 'data-testid': 'info-date-field' }}
/>
)}
/>
<Controller
name="registrationDeadline"
control={control}
render={({ field }) => (
<TextField
{...field}
type="date"
label={t('form.registrationDeadline', 'Registration deadline')}
InputLabelProps={{ shrink: true }}
error={!!errors.registrationDeadline}
helperText={errors.registrationDeadline?.message}
fullWidth
inputProps={{ 'data-testid': 'info-deadline-field' }}
/>
)}
/>
</Stack>
{/* Event type + capacity on one line */}
<Stack direction={{ xs: 'column', sm: 'row' }} spacing={2} alignItems="flex-start">
<Box sx={{ flex: 1, width: '100%' }}>
<Controller
name="eventType"
control={control}
render={({ field }) => (
<EventTypeSelector
value={normalizeEventType(field.value)}
onChange={field.onChange}
/>
)}
/>
</Box>
<Controller
name="venueCapacity"
control={control}
render={({ field }) => (
<TextField
{...field}
type="number"
label={t('form.capacity', 'Venue capacity')}
error={!!errors.venueCapacity}
helperText={errors.venueCapacity?.message}
fullWidth
inputProps={{ 'data-testid': 'info-capacity-field' }}
/>
)}
/>
</Stack>
<Controller
name="venueName"
control={control}
render={({ field }) => (
<TextField
{...field}
label={t('form.venue', 'Venue name')}
error={!!errors.venueName}
helperText={errors.venueName?.message}
fullWidth
inputProps={{ 'data-testid': 'info-venue-name-field' }}
/>
)}
/>
<Controller
name="venueAddress"
control={control}
render={({ field }) => (
<TextField
{...field}
label={t('form.venueAddress', 'Venue address')}
error={!!errors.venueAddress}
helperText={errors.venueAddress?.message}
fullWidth
inputProps={{ 'data-testid': 'info-venue-address-field' }}
/>
)}
/>
</Stack>
</Paper>
</Stack>
</Box>
{saveError && (
<Alert severity="error" data-testid="info-save-error">
{saveError}
</Alert>
)}
{saved && (
<Alert severity="success" onClose={() => setSaved(false)} data-testid="info-saved">
{t('eventPage.details.saved', 'Changes saved')}
</Alert>
)}
<Box>
<Button
variant="contained"
onClick={onSave}
disabled={!dirty || updateEvent.isPending}
startIcon={updateEvent.isPending ? <CircularProgress size={16} /> : undefined}
data-testid="info-save-button"
>
{t('eventPage.details.save', 'Save changes')}
</Button>
</Box>
<AiAssistDrawer
eventCode={eventCode}
open={aiDrawerOpen}
onClose={() => setAiDrawerOpen(false)}
onDescriptionGenerated={(text: string) =>
setValue('description', text, { shouldDirty: true })
}
onImageGenerated={() => setAiDrawerOpen(false)}
/>
<TopicSelectionOverlay
open={topicOverlayOpen}
eventCode={eventCode}
currentTopicCode={event.topicCode ?? undefined}
onClose={() => setTopicOverlayOpen(false)}
/>
</Stack>
);
};
export default EventInfoTab;
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