{
  "version": "2.2.0",
  "name": "Handle Data Table Pagination",
  "description": "Apply pagination logic to data results",
  "trigger": {
    "type": "operation",
    "op": "transform"
  },
  "nodes": [
    {
      "id": "extract_pagination_params",
      "type": "operation",
      "op": "transform_data",
      "input": "{{ $json }}",
      "output": {
        "page": "{{ Math.max($json.page || 1, 1) }}",
        "limit": "{{ Math.min($json.limit || 50, 500) }}"
      }
    },
    {
      "id": "calculate_offset",
      "type": "operation",
      "op": "transform_data",
      "output": "{{ ($steps.extract_pagination_params.output.page - 1) * $steps.extract_pagination_params.output.limit }}"
    },
    {
      "id": "slice_data",
      "type": "operation",
      "op": "transform_data",
      "input": "{{ $json.data }}",
      "output": "{{ $json.data.slice($steps.calculate_offset.output, $steps.calculate_offset.output + $steps.extract_pagination_params.output.limit) }}"
    },
    {
      "id": "calculate_total_pages",
      "type": "operation",
      "op": "transform_data",
      "output": "{{ Math.ceil($json.data.length / $steps.extract_pagination_params.output.limit) }}"
    },
    {
      "id": "return_paginated",
      "type": "action",
      "action": "emit_event",
      "event": "data_paginated",
      "data": {
        "data": "{{ $steps.slice_data.output }}",
        "pagination": {
          "page": "{{ $steps.extract_pagination_params.output.page }}",
          "limit": "{{ $steps.extract_pagination_params.output.limit }}",
          "total": "{{ $json.data.length }}",
          "totalPages": "{{ $steps.calculate_total_pages.output }}",
          "hasMore": "{{ $steps.extract_pagination_params.output.page < $steps.calculate_total_pages.output }}"
        }
      }
    }
  ]
}