import { AdminDataTable } from '@/components/admin/AdminDataTable';
import { AdminEmptyState } from '@/components/admin/AdminEmptyState';
import { AdminHeaderPanel } from '@/components/admin/AdminHeaderPanel';
import { AdminStatsPanel } from '@/components/admin/AdminStatsPanel';
import { AdminUsersTable } from '@/components/admin/AdminUsersTable';
import { BulkActionBar } from '@/components/admin/BulkActionBar';
import { UserFilters } from '@/components/admin/UserFilters';
import { TemplateProps } from '@/lib/contracts/components/ComponentContracts';
import { AdminUsersViewData } from '@/lib/view-data/AdminUsersViewData';
import { Box } from '@/ui/Box';
import { Button } from '@/ui/Button';
import { Container } from '@/ui/Container';
import { ErrorBanner } from '@/ui/ErrorBanner';
import { Stack } from '@/ui/Stack';
import { RefreshCw, ShieldAlert, Users } from 'lucide-react';
import { Icon } from '@/ui/Icon';

// We need to add InlineNotice to UIComponents if it's used
// For now I'll assume it's a component or I'll add it to UIComponents

interface AdminUsersTemplateProps extends TemplateProps<AdminUsersViewData> {
  onRefresh: () => void;
  onSearch: (search: string) => void;
  onFilterRole: (role: string) => void;
  onFilterStatus: (status: string) => void;
  onClearFilters: () => void;
  onUpdateStatus: (userId: string, status: string) => void;
  onDeleteUser: (userId: string) => void;
  search: string;
  roleFilter: string;
  statusFilter: string;
  loading: boolean;
  error: string | null;
  deletingUser: string | null;
  // Selection state passed from wrapper
  selectedUserIds: string[];
  onSelectUser: (userId: string) => void;
  onSelectAll: () => void;
  onClearSelection: () => void;
}

export function AdminUsersTemplate({
  viewData,
  onRefresh,
  onSearch,
  onFilterRole,
  onFilterStatus,
  onClearFilters,
  onUpdateStatus,
  onDeleteUser,
  search,
  roleFilter,
  statusFilter,
  loading,
  error,
  deletingUser,
  selectedUserIds,
  onSelectUser,
  onSelectAll,
  onClearSelection
}: AdminUsersTemplateProps) {
  const stats = [
    {
      label: 'Total Users',
      value: viewData.total,
      icon: Users,
      variant: 'blue' as const
    },
    {
      label: 'Active Users',
      value: viewData.activeUserCount,
      icon: RefreshCw,
      variant: 'green' as const
    },
    {
      label: 'System Admins',
      value: viewData.adminCount,
      icon: ShieldAlert,
      variant: 'purple' as const
    }
  ];

  const bulkActions = [
    {
      label: 'Suspend Selected',
      onClick: () => {
        console.log('Bulk suspend', selectedUserIds);
      },
      variant: 'secondary' as const
    },
    {
      label: 'Delete Selected',
      onClick: () => {
        console.log('Bulk delete', selectedUserIds);
      },
      variant: 'danger' as const
    }
  ];

  return (
    <Container size="lg">
      <Box paddingY={8}>
        <Stack gap={8}>
          <AdminHeaderPanel
            title="User Management"
            description="Monitor and control system access"
            isLoading={loading}
            actions={
              <Button
                onClick={onRefresh}
                disabled={loading}
                variant="secondary"
                size="sm"
                icon={<Icon icon={RefreshCw} size={3} animate={loading ? 'spin' : 'none'} />}
              >
                Refresh Data
              </Button>
            }
          />

          {/* error notice should be a component */}
          {error && (
            <ErrorBanner title="Operation Failed" message={error} />
          )}

          <AdminStatsPanel stats={stats} />

          <UserFilters
            search={search}
            roleFilter={roleFilter}
            statusFilter={statusFilter}
            onSearch={onSearch}
            onFilterRole={onFilterRole}
            onFilterStatus={onFilterStatus}
            onClearFilters={onClearFilters}
          />

          <AdminDataTable>
            {viewData.users.length === 0 && !loading ? (
              <AdminEmptyState
                icon={Users}
                title="No users found"
                description="Try adjusting your filters or search query"
                action={
                  <Button variant="secondary" size="sm" onClick={onClearFilters}>
                    Clear All Filters
                  </Button>
                }
              />
            ) : (
              <AdminUsersTable
                users={viewData.users}
                selectedUserIds={selectedUserIds}
                onSelectUser={onSelectUser}
                onSelectAll={onSelectAll}
                onUpdateStatus={onUpdateStatus}
                onDeleteUser={onDeleteUser}
                deletingUserId={deletingUser}
              />
            )}
          </AdminDataTable>

          <BulkActionBar
            selectedCount={selectedUserIds.length}
            actions={bulkActions}
            onClearSelection={onClearSelection}
          />
        </Stack>
      </Box>
    </Container>
  );
}