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* CustomTaskModal Component (Story 5.5 Phase 6)
*
* AC22: Add/edit custom tasks modal
*
* Modes:
* - Create mode (no existingTask): create a new ad-hoc task or template
* - Edit mode (existingTask provided): update existing task's notes, due date, and assignee
*
* When eventId is null (task board context), shows an event selector so the user
* can pick which event the ad-hoc task belongs to, OR they can check "Save as
* reusable template" to create a template instead.
*/
import React, { useState, useEffect } from 'react';
import {
Dialog,
DialogTitle,
DialogContent,
DialogActions,
Button,
TextField,
MenuItem,
FormControl,
FormLabel,
RadioGroup,
Radio,
FormControlLabel,
Checkbox,
Stack,
Alert,
CircularProgress,
Typography,
useMediaQuery,
useTheme,
} from '@mui/material';
import { useTranslation } from 'react-i18next';
import { useMutation, useQueryClient } from '@tanstack/react-query';
import {
taskService,
type CreateTaskTemplateRequest,
type CreateEventTaskRequest,
type EventTaskResponse,
type UpdateEventTaskRequest,
} from '@/services/taskService';
import { OrganizerSelect } from '@/components/shared/OrganizerSelect';
import { useEvents } from '@/hooks/useEvents';
// Event workflow states — lowercase matches what the backend stores in task_templates
const WORKFLOW_STATE_VALUES = [
'topic_selection',
'speaker_brainstorming',
'speaker_outreach',
'agenda_published',
'event_live',
'post_event_wrap_up',
'archived',
] as const;
const DUE_DATE_TYPE_VALUES = ['immediate', 'relative_to_event', 'absolute'] as const;
interface CustomTaskModalProps {
open: boolean;
onClose: () => void;
eventId: string | null; // If null, shows event selector
organizerUsername: string;
existingTask?: EventTaskResponse; // For edit mode
}
export const CustomTaskModal: React.FC<CustomTaskModalProps> = ({
open,
onClose,
eventId,
organizerUsername,
existingTask,
}) => {
const { t } = useTranslation('events');
const queryClient = useQueryClient();
const theme = useTheme();
const isMobile = useMediaQuery(theme.breakpoints.down('md'));
const isEditMode = !!existingTask;
// Form state
const [taskName, setTaskName] = useState('');
const [triggerState, setTriggerState] = useState('topic_selection');
const [dueDateType, setDueDateType] = useState<'immediate' | 'relative_to_event' | 'absolute'>(
'relative_to_event'
);
const [offsetDays, setOffsetDays] = useState<number>(-30);
const [absoluteDueDate, setAbsoluteDueDate] = useState('');
const [assignedOrganizer, setAssignedOrganizer] = useState('');
const [saveAsTemplate, setSaveAsTemplate] = useState(false);
const [notes, setNotes] = useState('');
const [selectedEventCode, setSelectedEventCode] = useState<string>('');
const [errors, setErrors] = useState<Record<string, string>>({});
// Fetch events for the event selector (only needed when no eventId provided and not edit mode)
const showEventSelector = !eventId && !isEditMode;
const { data: eventsData } = useEvents({ page: 1, limit: 100 }, undefined, undefined);
const events = eventsData?.data ?? [];
// Populate form when opening in edit mode
useEffect(() => {
Iif (open && isEditMode && existingTask) {
setTaskName(existingTask.taskName);
setTriggerState(existingTask.triggerState);
setAssignedOrganizer(existingTask.assignedOrganizerUsername ?? '');
setNotes(existingTask.notes ?? '');
setSaveAsTemplate(false);
setErrors({});
// Pre-populate due date from existing task
if (existingTask.dueDate) {
setAbsoluteDueDate(existingTask.dueDate.slice(0, 10));
setDueDateType('absolute');
} else {
setAbsoluteDueDate('');
setDueDateType('relative_to_event');
}
} else if (Iopen && !isEditMode) {
// Reset to defaults for create mode
setTaskName('');
setTriggerState('topic_selection');
setDueDateType('relative_to_event');
setOffsetDays(-30);
setAbsoluteDueDate('');
setAssignedOrganizer(organizerUsername);
setSaveAsTemplate(false);
setNotes('');
setSelectedEventCode('');
setErrors({});
}
}, [open, isEditMode, existingTask, organizerUsername]);
// Update task mutation (edit mode)
const updateTaskMutation = useMutation({
mutationFn: ({ taskId, request }: { taskId: string; request: UpdateEventTaskRequest }) =>
taskService.updateTask(taskId, request),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ['tasks'] });
handleClose();
},
});
// Create task template mutation
const createTemplateMutation = useMutation({
mutationFn: (request: CreateTaskTemplateRequest) => taskService.createTemplate(request),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ['tasks', 'templates'] });
handleClose();
},
});
// Create ad-hoc task mutation
const createAdHocTaskMutation = useMutation({
mutationFn: ({ eventCode, request }: { eventCode: string; request: CreateEventTaskRequest }) =>
taskService.createAdHocTask(eventCode, request),
onSuccess: () => {
queryClient.invalidateQueries({ queryKey: ['tasks'] });
handleClose();
},
});
const handleClose = () => {
setErrors({});
onClose();
};
const validateForm = (): boolean => {
const newErrors: Record<string, string> = {};
if (!isEditMode) {
if (!taskName.trim()) {
newErrors.taskName = t('tasks.errors.taskNameRequired');
}
if (!triggerState) {
newErrors.triggerState = t('tasks.errors.triggerStateRequired');
}
if (dueDateType === 'relative_to_event' && offsetDays === undefined) {
newErrors.offsetDays = t('tasks.errors.offsetDaysRequired');
}
// If no eventId and not template mode, require event selection
if (!eventId && !saveAsTemplate && !selectedEventCode) {
newErrors.event = t('tasks.errors.eventRequired');
}
}
setErrors(newErrors);
return Object.keys(newErrors).length === 0;
};
const handleSubmit = async () => {
if (!validateForm()) {
return;
}
if (isEditMode && existingTask) {
// Edit mode: patch existing task
const request: UpdateEventTaskRequest = {
notes: notes || undefined,
assignedOrganizerUsername: assignedOrganizer || undefined,
dueDate: absoluteDueDate ? new Date(absoluteDueDate).toISOString() : undefined,
};
updateTaskMutation.mutate({ taskId: existingTask.id, request });
return;
}
// Create mode
const effectiveEventId = eventId ?? (selectedEventCode || null);
if (saveAsTemplate || !effectiveEventId) {
// Create as template
const request: CreateTaskTemplateRequest = {
name: taskName,
triggerState,
dueDateType,
dueDateOffsetDays: dueDateType === 'relative_to_event' ? offsetDays : undefined,
saveAsTemplate: true,
};
createTemplateMutation.mutate(request);
} else {
// Create as ad-hoc task for specific event
let dueDate: string | undefined;
if (dueDateType === 'immediate') {
dueDate = new Date().toISOString();
} else if (dueDateType === 'absolute' && absoluteDueDate) {
dueDate = new Date(absoluteDueDate).toISOString();
}
const request: CreateEventTaskRequest = {
taskName,
triggerState,
dueDate,
assignedOrganizerUsername: assignedOrganizer || undefined,
notes: notes || undefined,
};
createAdHocTaskMutation.mutate({ eventCode: effectiveEventId, request });
}
};
const isLoading =
updateTaskMutation.isPending ||
createTemplateMutation.isPending ||
createAdHocTaskMutation.isPending;
const error =
updateTaskMutation.error || createTemplateMutation.error || createAdHocTaskMutation.error;
// Determine effective event ID for button label
const effectiveEventId = eventId ?? (selectedEventCode || null);
const isTemplateMode = !isEditMode && (saveAsTemplate || !effectiveEventId);
const submitLabel = isEditMode
? t('common.saveChanges')
: isTemplateMode
? t('tasks.createTemplate')
: t('tasks.createTask');
return (
<Dialog
open={open}
onClose={handleClose}
maxWidth="md"
fullWidth
fullScreen={isMobile}
data-testid="custom-task-modal"
>
<DialogTitle>{isEditMode ? t('tasks.editTask') : t('tasks.addCustomTask')}</DialogTitle>
<DialogContent>
<Stack spacing={3} sx={{ mt: 2 }}>
{/* Error Alert */}
{error && (
<Alert severity="error">
{isEditMode ? t('tasks.errors.updateTaskFailed') : t('tasks.errors.createTaskFailed')}
: {error.message}
</Alert>
)}
{/* Edit mode: show read-only task name */}
{isEditMode ? (
<Typography variant="subtitle1" fontWeight="bold">
{existingTask?.taskName}
</Typography>
) : (
/* Create mode: task name field */
<TextField
label={t('tasks.taskName')}
value={taskName}
onChange={(e) => setTaskName(e.target.value)}
error={!!errors.taskName}
helperText={errors.taskName}
required
fullWidth
placeholder={t('tasks.taskNamePlaceholder')}
inputProps={{ 'data-testid': 'custom-task-name-input' }}
/>
)}
{/* Event Selector (create mode, no eventId prop) */}
{showEventSelector && (
<TextField
select
label={t('tasks.selectEvent')}
value={selectedEventCode}
onChange={(e) => setSelectedEventCode(e.target.value)}
error={!!errors.event}
helperText={errors.event || t('tasks.selectEventHelp')}
fullWidth
>
<MenuItem value="">
<em>{t('tasks.noEvent')}</em>
</MenuItem>
{events.map((event) => (
<MenuItem key={event.eventCode} value={event.eventCode}>
{event.eventCode} — {event.title}
</MenuItem>
))}
</TextField>
)}
{/* Trigger State (create mode only) */}
{!isEditMode && (
<TextField
select
label={t('tasks.triggerState')}
value={triggerState}
onChange={(e) => setTriggerState(e.target.value)}
error={!!errors.triggerState}
helperText={errors.triggerState || t('tasks.triggerStateHelp')}
required
fullWidth
>
{WORKFLOW_STATE_VALUES.map((value) => (
<MenuItem key={value} value={value}>
{t(`tasks.workflowStates.${value}`)}
</MenuItem>
))}
</TextField>
)}
{/* Due Date Type (create mode, or absolute date edit in edit mode) */}
{!isEditMode && (
<FormControl component="fieldset">
<FormLabel component="legend">{t('tasks.dueDateType')}</FormLabel>
<RadioGroup
value={dueDateType}
onChange={(e) =>
setDueDateType(e.target.value as 'immediate' | 'relative_to_event' | 'absolute')
}
>
{DUE_DATE_TYPE_VALUES.map((value) => (
<FormControlLabel
key={value}
value={value}
control={<Radio />}
label={t(`tasks.dueDateTypes.${value}`)}
/>
))}
</RadioGroup>
</FormControl>
)}
{/* Offset Days (create mode, relative_to_event) */}
{!isEditMode && dueDateType === 'relative_to_event' && (
<TextField
label={t('tasks.offsetDays')}
type="number"
value={offsetDays}
onChange={(e) => setOffsetDays(parseInt(e.target.value, 10))}
error={!!errors.offsetDays}
helperText={errors.offsetDays || t('tasks.offsetDaysHelp')}
required
fullWidth
placeholder="-30"
/>
)}
{/* Absolute Date picker — always shown in edit mode, or when type is absolute in create mode */}
{(isEditMode || dueDateType === 'absolute') && (
<TextField
label={t('tasks.absoluteDueDate')}
type="date"
value={absoluteDueDate}
onChange={(e) => setAbsoluteDueDate(e.target.value)}
fullWidth
InputLabelProps={{ shrink: true }}
/>
)}
{/* Assigned Organizer — dropdown */}
<OrganizerSelect
value={assignedOrganizer}
onChange={(val) => setAssignedOrganizer(val)}
includeUnassigned={true}
includeAllOption={false}
label={t('tasks.assignedOrganizer')}
fullWidth
/>
{/* Notes */}
<TextField
label={t('tasks.notes')}
value={notes}
onChange={(e) => setNotes(e.target.value)}
multiline
rows={3}
fullWidth
placeholder={t('tasks.notesPlaceholder')}
/>
{/* Save as Template (create mode, only when no event selected or eventId) */}
{!isEditMode && (
<FormControlLabel
control={
<Checkbox
checked={saveAsTemplate}
onChange={(e) => setSaveAsTemplate(e.target.checked)}
data-testid="custom-task-save-as-template"
/>
}
label={t('tasks.saveAsTemplate')}
/>
)}
</Stack>
</DialogContent>
<DialogActions>
<Button onClick={handleClose} disabled={isLoading}>
{t('common:actions.cancel')}
</Button>
<Button
onClick={handleSubmit}
variant="contained"
disabled={isLoading}
data-testid="custom-task-submit"
>
{isLoading ? <CircularProgress size={20} /> : submitLabel}
</Button>
</DialogActions>
</Dialog>
);
};
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