import type { ReactNode } from "react";

export interface Column<T> {
  key: string;
  header: string;
  render?: (row: T) => ReactNode;
  className?: string;
}

interface DataTableProps<T> {
  columns: Column<T>[];
  data: T[];
  keyField: string;
  loading?: boolean;
  onRowClick?: (row: T) => void;
  emptyMessage?: string;
}

export default function DataTable<T extends Record<string, unknown>>({
  columns,
  data,
  keyField,
  loading,
  onRowClick,
  emptyMessage = "No data found",
}: DataTableProps<T>) {
  if (loading) {
    return (
      <div className="flex justify-center p-8">
        <span className="loading loading-spinner loading-lg" />
      </div>
    );
  }

  return (
    <div className="overflow-x-auto">
      <table className="table table-zebra w-full">
        <thead>
          <tr>
            {columns.map((col) => (
              <th key={col.key} className={col.className}>
                {col.header}
              </th>
            ))}
          </tr>
        </thead>
        <tbody>
          {data.length === 0 ? (
            <tr>
              <td colSpan={columns.length} className="text-center py-8 text-base-content/50">
                {emptyMessage}
              </td>
            </tr>
          ) : (
            data.map((row) => (
              <tr
                key={String(row[keyField])}
                className={onRowClick ? "cursor-pointer hover" : ""}
                onClick={() => onRowClick?.(row)}
              >
                {columns.map((col) => (
                  <td key={col.key} className={col.className}>
                    {col.render ? col.render(row) : String(row[col.key] ?? "")}
                  </td>
                ))}
              </tr>
            ))
          )}
        </tbody>
      </table>
    </div>
  );
}