'use client';

import { useMemo } from 'react';
import type { ColumnDef } from '@tanstack/react-table';
import { Edit, RotateCcw } from 'lucide-react';

import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import { PERMISSIONS } from '@/constants/permissions';
import { usePermissions } from '@/hooks/usePermissions';
import type { AdministrationUser } from '@/types';

function formatDate(value?: string | null) {
  if (!value) return '-';
  return new Intl.DateTimeFormat('en-IN', {
    day: '2-digit',
    month: 'short',
    year: 'numeric',
  }).format(new Date(value));
}

interface UseUserColumnsParams {
  onEdit: (user: AdministrationUser) => void;
  onToggleStatus: (user: AdministrationUser) => void;
  pendingUserId?: number;
}

export function useUserColumns({
  onEdit,
  onToggleStatus,
  pendingUserId,
}: UseUserColumnsParams): ColumnDef<AdministrationUser>[] {
  const { hasPermission } = usePermissions();
  const canEdit = hasPermission(PERMISSIONS.USER.UPDATE);
  const canDelete = hasPermission(PERMISSIONS.USER.DELETE);

  return useMemo(() => {
    const columns: ColumnDef<AdministrationUser>[] = [
      {
        accessorKey: 'first_name',
        header: 'Name',
        cell: ({ row }) => (
          <span className="font-medium">
            {[row.original.first_name, row.original.last_name].filter(Boolean).join(' ') ||
              row.original.username}
          </span>
        ),
      },
      {
        accessorKey: 'email',
        header: 'Email',
      },
      {
        accessorKey: 'phone_number',
        header: 'Phone',
        cell: ({ row }) => row.original.phone_number || '-',
      },
      {
        accessorKey: 'roles',
        header: 'Roles',
        cell: ({ row }) => (
          <div className="flex flex-wrap gap-1">
            {row.original.roles?.length ? (
              row.original.roles.map((role) => (
                <Badge key={role.id ?? role.name} variant="outline">
                  {role.display_name || role.name}
                </Badge>
              ))
            ) : (
              <span className="text-muted-foreground">-</span>
            )}
          </div>
        ),
      },
      {
        accessorKey: 'created_at',
        header: 'Created',
        cell: ({ row }) => formatDate(row.original.created_at),
      },
      {
        accessorKey: 'effective_status',
        header: 'Status',
        cell: ({ row }) => (
          <Badge variant={row.original.effective_status === 'active' ? 'default' : 'secondary'}>
            {row.original.effective_status}
          </Badge>
        ),
      },
    ];

    if (!canEdit && !canDelete) return columns;

    columns.push({
      id: 'actions',
      header: () => <div className="text-right">Actions</div>,
      cell: ({ row }) => {
        const user = row.original;
        return (
          <div className="flex justify-end gap-2">
            {canEdit ? (
              <Button variant="outline" size="sm" onClick={() => onEdit(user)}>
                <Edit className="size-4" />
              </Button>
            ) : null}
            {canDelete ? (
              <Button
                variant="outline"
                size="sm"
                disabled={pendingUserId === user.id || user.effective_status === 'pending'}
                onClick={() => onToggleStatus(user)}
              >
                <RotateCcw className="mr-2 size-4" />
                {user.effective_status === 'active' ? 'Deactivate' : 'Activate'}
              </Button>
            ) : null}
          </div>
        );
      },
    });

    return columns;
  }, [canDelete, canEdit, onEdit, onToggleStatus, pendingUserId]);
}