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* TaskWidget Component (Story 5.5 Phase 6 - Modified for routing)
*
* AC24: Critical tasks widget for dashboard sidebar
* Wireframe: docs/wireframes/5.5-content-review-task-system-ux-flow.md
*
* Features:
* - Displays all active tasks (pending, todo, in_progress)
* - Shows task name, event, due date, assignee
* - "View All Tasks" button navigates to /organizer/tasks page
* - Auto-refreshes on task completion
*/
import React, { useState } from 'react';
import { List, ListItem, Typography, Box, Button, Chip, Stack, Skeleton } from '@mui/material';
import { CheckCircle as CheckCircleIcon, OpenInNew as OpenInNewIcon } from '@mui/icons-material';
import { useTranslation } from 'react-i18next';
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
import { useNavigate } from 'react-router-dom';
import { de, enUS } from 'date-fns/locale';
import { taskService, type EventTaskResponse } from '@/services/taskService';
import { TaskCard } from './TaskCard';
import { CustomTaskModal } from './CustomTaskModal';
interface TaskWidgetProps {
organizerUsername: string;
}
export const TaskWidget: React.FC<TaskWidgetProps> = ({ organizerUsername }) => {
const { t, i18n } = useTranslation('events');
const queryClient = useQueryClient();
const navigate = useNavigate();
const locale = i18n.language === 'de' ? de : enUS;
const [editingTask, setEditingTask] = useState<EventTaskResponse | null>(null);
// Fetch critical tasks
const {
data: criticalTasks = [],
isLoading,
isError,
} = useQuery({
queryKey: ['tasks', 'critical', organizerUsername],
queryFn: () => taskService.getMyTasks(true),
refetchInterval: 60000, // Auto-refresh every 60 seconds
});
// Complete task mutation
const completeTaskMutation = useMutation({
mutationFn: ({ taskId, notes }: { taskId: string; notes?: string }) =>
taskService.completeTask(taskId, { notes }),
onSuccess: () => {
// Invalidate critical tasks query to refresh the list
queryClient.invalidateQueries({ queryKey: ['tasks', 'critical'] });
queryClient.invalidateQueries({ queryKey: ['tasks', 'my-tasks'] });
},
});
const handleCompleteTask = (taskId: string) => {
completeTaskMutation.mutate({ taskId });
};
const handleViewAllTasks = () => {
navigate('/organizer/tasks');
};
// Show all non-completed tasks (backend already filters)
const activeTasks = criticalTasks.filter((task) => task.status !== 'completed');
// Loading state
if (isLoading) {
return (
<Box>
<Typography variant="h6" gutterBottom>
{t('tasks.criticalTasks', 'Critical Tasks')}
</Typography>
<List>
{[1, 2, 3].map((index) => (
<ListItem key={index} data-testid={`skeleton-task-${index}`}>
<Skeleton variant="rectangular" width="100%" height={80} />
</ListItem>
))}
</List>
</Box>
);
}
// Error state
Iif (isError) {
return (
<Box textAlign="center" py={4}>
<Typography variant="h6" gutterBottom>
{t('tasks.criticalTasks', 'Critical Tasks')}
</Typography>
<Typography variant="body2" color="error">
{t('tasks.errorLoadingTasks', 'Failed to load tasks')}
</Typography>
</Box>
);
}
// Empty state
Iif (activeTasks.length === 0) {
return (
<Box textAlign="center" py={4}>
<Typography variant="h6" gutterBottom>
{t('tasks.criticalTasks', 'Critical Tasks')}
</Typography>
<CheckCircleIcon color="success" sx={{ fontSize: 48, mb: 2 }} />
<Typography variant="body2" color="text.secondary">
{t('tasks.noCriticalTasks', 'No critical tasks')}
</Typography>
<Typography variant="body2" color="text.secondary" gutterBottom>
{t('tasks.greatJob', 'Great job!')}
</Typography>
<Button
variant="outlined"
size="small"
onClick={handleViewAllTasks}
sx={{ mt: 2 }}
endIcon={<OpenInNewIcon />}
>
{t('tasks.viewAllTasks', 'View All Tasks')}
</Button>
</Box>
);
}
return (
<Box aria-label={t('tasks.criticalTasksWidget', 'Critical tasks widget')}>
<Stack direction="row" justifyContent="space-between" alignItems="center" mb={2}>
<Typography variant="h6">{t('tasks.criticalTasks', 'Critical Tasks')}</Typography>
<Chip
label={`${activeTasks.length} ${activeTasks.length === 1 ? t('tasks.task', 'task') : t('tasks.tasks', 'tasks')}`}
size="small"
color="primary"
aria-label={t('tasks.activeAriaLabel', {
count: activeTasks.length,
taskLabel: activeTasks.length === 1 ? t('tasks.task') : t('tasks.tasks'),
})}
/>
</Stack>
<List sx={{ maxHeight: 400, overflow: 'auto' }} data-testid="critical-tasks-list">
{activeTasks.map((task) => (
<TaskCard
key={task.id}
task={task}
locale={locale}
onComplete={handleCompleteTask}
onEdit={(t) => setEditingTask(t)}
showCompleteButton={true}
showEventCode={true}
showTriggerState={false}
showCompletionInfo={false}
t={t}
/>
))}
</List>
{/* View All Tasks Button */}
<Box mt={2}>
<Button
variant="outlined"
fullWidth
size="small"
onClick={handleViewAllTasks}
endIcon={<OpenInNewIcon />}
>
{t('tasks.viewAllTasks', 'View All Tasks')}
</Button>
</Box>
{/* Edit Task Modal */}
<CustomTaskModal
open={editingTask !== null}
onClose={() => setEditingTask(null)}
eventId={null}
organizerUsername={organizerUsername}
existingTask={editingTask ?? undefined}
/>
</Box>
);
};
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