script.liquid

{% assign orders = array %}

{% if event.topic contains "shopify/orders/" %}
  {% capture query %}
    query {
      order(id: {{ order.admin_graphql_api_id | json }}) {
        id
        name
        tags
        lineItems(first: 20) {
          nodes {
            variant {
              id
              displayName
              inventoryQuantity
              inventoryItem {
                id
              }
            }
          }
        }
      }
    }
  {% endcapture %}

  {% assign result = query | shopify %}

  {% unless result.data.order.tags contains options.order_tag_to_add__required %}
    {% assign orders[0] = result.data.order %}
  {% endunless %}

{% elsif event.topic == "mechanic/user/trigger" or event.topic contains "mechanic/scheduler/" %}
  {% assign cursor = nil %}

  {% for n in (0..200) %}
    {% capture query %}
      query {
        orders(
          first: 10
          after: {{ cursor | json }}
          query: {{ options.order_tag_to_add__required | json | prepend: "fulfillment_status:unshipped tag_not:" | json }}
        ) {
          pageInfo {
            hasNextPage
            endCursor
          }
          nodes {
            id
            name
            lineItems(first: 20) {
              nodes {
                variant {
                  id
                  displayName
                  inventoryQuantity
                  inventoryItem {
                    id
                  }
                }
              }
            }
          }
        }
      }
    {% endcapture %}

    {% assign result = query | shopify %}

    {% assign orders = result.data.orders.nodes | default: array | concat: orders %}

    {% if result.data.orders.pageInfo.hasNextPage %}
      {% assign cursor = result.data.orders.pageInfo.endCursor %}
    {% else %}
      {% break %}
    {% endif %}
  {% endfor %}
{% endif %}

{% if event.preview %}
  {% capture orders_json %}
    [
      {
        "id": "gid://shopify/Order/1234567890",
        "name": "#PREVIEW",
        "lineItems": {
          "nodes": [
            {
              "variant": {
                "id": "gid://shopify/ProductVariant/1234567890",
                "displayName": "ACME Widget - Alpha",
                "inventoryQuantity": 2,
                "inventoryItem": {
                  "id": "gid://shopify/inventoryItem/1234567890"
                }
              }
            }
          ]
        }
      }
    ]
  {% endcapture %}

  {% assign orders = orders_json | parse_json %}
{% endif %}

{% for order in orders %}
  {% assign order_qualifies = nil %}

  {% for line_item in order.lineItems.nodes %}
    {% if line_item.variant == blank %}
      {% continue %}
    {% endif %}

    {% if options.ignore_line_items_not_fulfilled_manually__boolean %}
      {% capture query %}
        query {
          inventoryItem(id: {{ line_item.variant.inventoryItem.id | json }}) {
            inventoryLevels(first: 100) {
              nodes {
                location {
                  fulfillmentService {
                    handle
                    serviceName
                  }
                }
              }
            }
          }
        }
      {% endcapture %}

      {% assign result = query | shopify %}

      {% comment %}
        Note: no preview stub data needed here, as null values for the fulfillment services are literally the happy path :)
      {% endcomment %}

      {% assign fulfillment_services
        = result.data.inventoryItem.inventoryLevels.nodes
        | map: "location"
        | map: "fulfillmentService"
        | compact
      %}

      {% if fulfillment_services != blank %}
        {% log
          message: "This inventory item for this line item variant is configured to use at least one 3rd party fulfillment service'; skipping.",
          order_name: order.name,
          line_item: line_item,
          fulfillment_services: fulfillment_services
        %}
        {% continue %}
      {% endif  %}
    {% endif %}

    {% if order_qualifies == nil and line_item.variant.inventoryQuantity >= 0 %}
      {% assign order_qualifies = true %}

    {% elsif line_item.variant.inventoryQuantity < 0 %}
      {% assign order_qualifies = false %}
      {% break %}
    {% endif %}
  {% endfor %}

  {% if order_qualifies %}
    {% if options.test_mode__boolean %}
      {% log order_id_to_tag: order.id, order_name_to_tag: order.name %}

    {% else %}
      {% action "shopify" %}
        mutation {
          tagsAdd(
            id: {{ order.id | json }}
            tags: {{ options.order_tag_to_add__required | json }}
          ) {
            node {
              ... on Order {
                id
                name
              }
            }
            userErrors {
              field
              message
            }
          }
        }
      {% endaction %}
    {% endif %}
  {% endif %}
{% endfor %}