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* TaskTemplatesTab (Story 10.1 - Task 4)
*
* Tab 2 of the Admin page.
* Shows Default Templates (read-only) and Custom Templates (create/edit/delete).
*/
import React, { useState } from 'react';
import {
Alert,
Box,
Button,
Chip,
Divider,
IconButton,
List,
ListItem,
ListItemSecondaryAction,
ListItemText,
Snackbar,
Typography,
} from '@mui/material';
import { Add as AddIcon, Delete as DeleteIcon, Edit as EditIcon } from '@mui/icons-material';
import { useQuery, useQueryClient } from '@tanstack/react-query';
import { useTranslation } from 'react-i18next';
import { useAuth } from '@/hooks/useAuth';
import { taskService, TaskTemplateResponse } from '@/services/taskService';
import { CustomTaskModal } from '@/components/organizer/Tasks/CustomTaskModal';
import { TaskTemplateEditModal } from './TaskTemplateEditModal';
import { BATbernLoader } from '@components/shared/BATbernLoader';
const dueDateSummary = (template: TaskTemplateResponse): string => {
if (template.dueDateType === 'relative_to_event' && template.dueDateOffsetDays !== null) {
return `${template.dueDateOffsetDays}d before event`;
}
return template.dueDateType ?? '—';
};
export const TaskTemplatesTab: React.FC = () => {
const { t } = useTranslation();
const queryClient = useQueryClient();
const { user } = useAuth();
const {
data: templates = [],
isLoading,
error,
} = useQuery({
queryKey: ['tasks', 'templates'],
queryFn: () => taskService.listAllTemplates(),
});
const [createOpen, setCreateOpen] = useState(false);
const [editTemplate, setEditTemplate] = useState<TaskTemplateResponse | null>(null);
const [deleteError, setDeleteError] = useState<string | null>(null);
const defaultTemplates = templates.filter((tmpl) => tmpl.isDefault);
const customTemplates = templates.filter((tmpl) => !tmpl.isDefault);
const handleDelete = async (template: TaskTemplateResponse) => {
if (
!window.confirm(t('admin.taskTemplates.confirmDelete', `Delete template "${template.name}"?`))
) {
return;
}
try {
await taskService.deleteTemplate(template.id);
await queryClient.invalidateQueries({ queryKey: ['tasks', 'templates'] });
} catch {
setDeleteError(
t('admin.taskTemplates.deleteFailed', 'Failed to delete template. Please try again.')
);
}
};
if (isLoading) {
return (
<Box sx={{ textAlign: 'center', mt: 4 }}>
<BATbernLoader size={96} />
</Box>
);
}
Iif (error) {
return <Alert severity="error">{t('errors.loadFailed', 'Failed to load templates.')}</Alert>;
}
return (
<Box data-testid="task-templates-tab">
{/* Default Templates */}
<Typography variant="h6" gutterBottom>
{t('admin.taskTemplates.defaultSection', 'Default Templates')}
</Typography>
<List dense data-testid="default-templates-list">
{defaultTemplates.map((template) => (
<ListItem key={template.id} divider>
<ListItemText primary={template.name} secondary={dueDateSummary(template)} />
<ListItemSecondaryAction>
<Chip label={template.triggerState} size="small" variant="outlined" />
</ListItemSecondaryAction>
</ListItem>
))}
{defaultTemplates.length === 0 && (
<ListItem>
<ListItemText
secondary={t('admin.taskTemplates.noDefaults', 'No default templates.')}
/>
</ListItem>
)}
</List>
<Divider sx={{ my: 3 }} />
{/* Custom Templates */}
<Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 1 }}>
<Typography variant="h6">
{t('admin.taskTemplates.customSection', 'Custom Templates')}
</Typography>
<Button
startIcon={<AddIcon />}
variant="outlined"
onClick={() => setCreateOpen(true)}
data-testid="add-template-btn"
>
{t('admin.taskTemplates.addTemplate', '+ Add Template')}
</Button>
</Box>
<List dense data-testid="custom-templates-list">
{customTemplates.map((template) => (
<ListItem key={template.id} divider>
<ListItemText primary={template.name} secondary={dueDateSummary(template)} />
<ListItemSecondaryAction sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
<Chip label={template.triggerState} size="small" variant="outlined" />
<IconButton
size="small"
onClick={() => setEditTemplate(template)}
aria-label={`Edit ${template.name}`}
data-testid={`edit-template-${template.id}`}
>
<EditIcon fontSize="small" />
</IconButton>
<IconButton
size="small"
onClick={() => handleDelete(template)}
aria-label={`Delete ${template.name}`}
data-testid={`delete-template-${template.id}`}
>
<DeleteIcon fontSize="small" />
</IconButton>
</ListItemSecondaryAction>
</ListItem>
))}
{customTemplates.length === 0 && (
<ListItem>
<ListItemText
secondary={t('admin.taskTemplates.noCustom', 'No custom templates yet.')}
/>
</ListItem>
)}
</List>
{/* Create via CustomTaskModal (eventId=null → template mode) */}
<CustomTaskModal
open={createOpen}
onClose={() => setCreateOpen(false)}
eventId={null}
organizerUsername={user?.username ?? ''}
/>
{/* Edit modal */}
{editTemplate && (
<TaskTemplateEditModal
open={Boolean(editTemplate)}
onClose={() => setEditTemplate(null)}
template={editTemplate}
/>
)}
<Snackbar
open={Boolean(deleteError)}
autoHideDuration={4000}
onClose={() => setDeleteError(null)}
message={deleteError}
/>
</Box>
);
};
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