Add BWF XML export

app/graphql/types/item_bwf_xml_type.rb

@@ -0,0 +1,8 @@
+class Types::ItemBwfXmlType < Types::BaseObject
+  field :full_identifier, String, null: false
+  field :collection_identifier, String, null: false
+  field :item_identifier, String, null: false
+  field :xml, String, null: false
+  field :created_at, GraphQL::Types::ISO8601DateTime
+  field :updated_at, GraphQL::Types::ISO8601DateTime
+end

app/graphql/types/query_type.rb

@@ -27,6 +27,34 @@ def item(full_identifier:)
       collection.items.find_by(identifier: item_identifier)
     end
 
+    field :item_bwf_xml, ItemBwfXmlType, 'Get the BWF XML for an item' do
+      argument :full_identifier, ID
+    end
+    def item_bwf_xml(full_identifier:)
+      raise(GraphQL::ExecutionError, 'Not authorised') unless context[:current_user]&.admin?
+
+      collection_identifier, item_identifier = full_identifier.split('-')
+      collection = Collection.find_by(identifier: collection_identifier)
+      raise(GraphQL::ExecutionError, 'Not found') unless collection
+
+      item = collection.items.find_by(identifier: item_identifier)
+      raise(GraphQL::ExecutionError, 'Not found') unless item
+
+      warden = Warden::Proxy.new({}, Warden::Manager.new({})).tap do |i|
+        i.set_user(context[:current_user], scope: :user)
+      end
+      item_renderer = ItemsController.renderer.new('warden' => warden)
+
+      {
+        full_identifier: item.full_identifier,
+        collection_identifier: collection.identifier,
+        item_identifier: item.identifier,
+        xml: item_renderer.render('items/show_bwf', formats: [:xml], assigns: { item: }),
+        created_at: item.created_at,
+        updated_at: item.updated_at
+      }
+    end
+
     field :items, Types::ItemResultType, null: true do
       argument :limit, Integer, default_value: 10, required: false
       argument :page, Integer, default_value: 1, required: false

app/models/essence.rb

@@ -25,6 +25,9 @@
 #
 # * `index_essences_on_item_id`:
 #     * **`item_id`**
+# * `index_essences_on_item_id_and_filename` (_unique_):
+#     * **`item_id`**
+#     * **`filename`**
 #
 
 class Essence < ApplicationRecord

app/views/items/show_bwf.xml.haml

@@ -0,0 +1,31 @@
+%REPORT
+  %BEXTDATA
+  %QUALITYREPORT
+    %BASICDATA
+      %ARCHIVENUMBER= @item.full_identifier
+      %TITLE= @item.title
+      %OPERATOR= @item.operator_name
+    %QUALITYEVENTS
+      %EVENT
+        %TYPE IngestNotes0
+        %COMMENT= @item.ingest_notes
+        %SAMPLECOUNT 0
+
+%Core
+  %Description
+    = "# Notes
+    = "Reference: https://catalog.paradisec.org.au/repository/#{@item.collection.identifier}/#{@item.identifier}"
+    = ""
+    = "Description: #{@item.description}."
+    = ""
+
+    - unless @item.subject_languages.empty?
+      = "Language: \"#{@item.subject_languages.first.name}\" #{@item.subject_languages.first.code};"
+
+    - unless @item.countries.empty?
+      = "Country: #{@item.countries.first.code};"
+
+  %Originator= @item.collector_name
+  %OriginationDate= @item.originated_on
+  %BextVersion 1
+  %CodingHistory A=PCM,F=96000,W=24,M=stereo,T=Paragest Pipeline

config/environments/test.rb

@@ -69,4 +69,6 @@
   config.active_job.queue_adapter = :inline
 
   config.action_mailer.default_url_options = { host: 'example.com' }
+
+  config.hosts << 'www.example.com'
 end

spec/graphql/item_bwf_xml_query_spec.rb

@@ -0,0 +1,54 @@
+require 'rails_helper'
+
+describe 'graphql' do
+  describe 'item_bwf_xml' do
+    let(:user) { create(:user) }
+    let(:admin_user) { create(:admin_user) }
+    let(:item) { create(:item) }
+
+    let(:query) do
+      <<-GRAPHQL
+          query GetItemBwfXmlQuery($fullIdentifier: ID!) {
+            itemBwfXml(fullIdentifier: $fullIdentifier) {
+              fullIdentifier
+              itemIdentifier
+              collectionIdentifier
+              xml
+              createdAt
+              updatedAt
+            }
+          }
+      GRAPHQL
+    end
+
+    context 'when standard user' do
+      it 'loads bwf xml' do
+        result = NabuSchema.execute(query, variables: { fullIdentifier: item.full_identifier })
+        expect(result['errors'].first['message']).to eq('Not authorised')
+      end
+    end
+
+    context 'when admin' do
+      it 'loads bwf xml' do
+        result = NabuSchema.execute(query, variables: { fullIdentifier: item.full_identifier },
+                                           context: { current_user: admin_user })
+
+        item_result = result['data']['itemBwfXml']
+        expect(item_result['itemIdentifier']).to eq(item.identifier)
+      end
+
+      it 'Missing item' do
+        result = NabuSchema.execute(query, variables: { fullIdentifier: 'FOO-001' },
+                                           context: { current_user: admin_user })
+        expect(result['errors'].first['message']).to eq('Not found')
+      end
+    end
+
+    context 'when not logged in' do
+      it 'throws an error' do
+        result = NabuSchema.execute(query, variables: { fullIdentifier: item.full_identifier })
+        expect(result['errors'].first['message']).to eq('Not authorised')
+      end
+    end
+  end
+end

spec/models/essence_spec.rb

@@ -25,6 +25,9 @@
 #
 # * `index_essences_on_item_id`:
 #     * **`item_id`**
+# * `index_essences_on_item_id_and_filename` (_unique_):
+#     * **`item_id`**
+#     * **`filename`**
 #
 
 require 'rails_helper'