From 0b5818943f662378a5d4187da743e634bd04c3f7 Mon Sep 17 00:00:00 2001
From: Kassio Borges <kborges@gitlab.com>
Date: Wed, 7 Apr 2021 21:55:58 +0100
Subject: [PATCH] WIP

---
 .../resolvers/exportable_type_resolver.rb     | 15 ++++++++
 app/graphql/types/exportable_entities_type.rb | 18 ++++++++++
 app/graphql/types/exportable_type_enum.rb     | 11 ++++++
 app/graphql/types/group_type.rb               |  6 ++++
 doc/api/graphql/reference/index.md            | 34 +++++++++++++++++++
 5 files changed, 84 insertions(+)
 create mode 100644 app/graphql/resolvers/exportable_type_resolver.rb
 create mode 100644 app/graphql/types/exportable_entities_type.rb
 create mode 100644 app/graphql/types/exportable_type_enum.rb

diff --git a/app/graphql/resolvers/exportable_type_resolver.rb b/app/graphql/resolvers/exportable_type_resolver.rb
new file mode 100644
index 00000000000000..d0ac1ffa832e78
--- /dev/null
+++ b/app/graphql/resolvers/exportable_type_resolver.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class ExportableTypeResolver < BaseResolver
+    argument :types, [Types::ExportableTypeEnum],
+      required: true,
+      description: 'What types to list.'
+
+    def resolve(**args)
+      args[:types].flat_map do |model|
+        model.where(group_id: object.id)
+      end
+    end
+  end
+end
diff --git a/app/graphql/types/exportable_entities_type.rb b/app/graphql/types/exportable_entities_type.rb
new file mode 100644
index 00000000000000..a9588eb06cf30a
--- /dev/null
+++ b/app/graphql/types/exportable_entities_type.rb
@@ -0,0 +1,18 @@
+module Types
+  class ExportableEntitiesType < ::Types::BaseUnion
+    possible_types ::Types::EpicType,
+                   ::Types::LabelType #,
+                   # ::Types::EventType,
+                   # ::Types::AwardEmojis::AwardEmojiType,
+                   # ::Types::Notes::NoteType
+
+    def self.resolve_type(object, _context)
+      case object
+      when Epic
+        ::Types::EpicType
+      when GroupLabel
+        ::Types::LabelType
+      end
+    end
+  end
+end
diff --git a/app/graphql/types/exportable_type_enum.rb b/app/graphql/types/exportable_type_enum.rb
new file mode 100644
index 00000000000000..84ee61495ea299
--- /dev/null
+++ b/app/graphql/types/exportable_type_enum.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+module Types
+  class ExportableTypeEnum < BaseEnum
+    value 'Epic', value: Epic, description: 'Epic.'
+    value 'Label', value: GroupLabel, description: 'Label.'
+    # value 'Event', value: ::Resolvers::EventResolver, description: 'Event.'
+    # value 'Note', value: ::Resolvers::Notes::NoteResolver, description: 'Note.'
+    # value 'AwardEmoji', value: ::Resolvers::AwardEmojis::AwardEmojiResolver, description: 'AwardEmoji.'
+  end
+end
diff --git a/app/graphql/types/group_type.rb b/app/graphql/types/group_type.rb
index a44281b2bdfdf0..7950a9536d6a71 100644
--- a/app/graphql/types/group_type.rb
+++ b/app/graphql/types/group_type.rb
@@ -161,6 +161,12 @@ def container_repositories_count
       group.container_repositories.size
     end
 
+    field :exportable_entities,
+          ::Types::ExportableEntitiesType.connection_type,
+          null: true,
+          description: 'Exportable Types',
+          resolver: Resolvers::ExportableTypeResolver
+
     private
 
     def group
diff --git a/doc/api/graphql/reference/index.md b/doc/api/graphql/reference/index.md
index 2e52cea7a3d6c4..4475db6902cead 100644
--- a/doc/api/graphql/reference/index.md
+++ b/doc/api/graphql/reference/index.md
@@ -3024,6 +3024,25 @@ Autogenerated return type of ExportRequirements.
 | `clientMutationId` | [`String`](#string) | A unique identifier for the client performing the mutation. |
 | `errors` | [`[String!]!`](#string) | Errors encountered during execution of the mutation. |
 
+### `ExportableEntitiesConnection`
+
+The connection type for ExportableEntities.
+
+| Field | Type | Description |
+| ----- | ---- | ----------- |
+| `edges` | [`[ExportableEntitiesEdge]`](#exportableentitiesedge) | A list of edges. |
+| `nodes` | [`[ExportableEntities]`](#exportableentities) | A list of nodes. |
+| `pageInfo` | [`PageInfo!`](#pageinfo) | Information to aid in pagination. |
+
+### `ExportableEntitiesEdge`
+
+An edge in a connection.
+
+| Field | Type | Description |
+| ----- | ---- | ----------- |
+| `cursor` | [`String!`](#string) | A cursor for use in pagination. |
+| `node` | [`ExportableEntities`](#exportableentities) | The item at the end of the edge. |
+
 ### `ExternalIssue`
 
 Represents an external issue.
@@ -3108,6 +3127,7 @@ Autogenerated return type of GitlabSubscriptionActivate.
 | `epicBoards` | [`EpicBoardConnection`](#epicboardconnection) | Find epic boards. |
 | `epics` | [`EpicConnection`](#epicconnection) | Find epics. |
 | `epicsEnabled` | [`Boolean`](#boolean) | Indicates if Epics are enabled for namespace. |
+| `exportableEntities` | [`ExportableEntitiesConnection`](#exportableentitiesconnection) | Exportable Types. |
 | `fullName` | [`String!`](#string) | Full name of the namespace. |
 | `fullPath` | [`ID!`](#id) | Full path of the namespace. |
 | `groupMembers` | [`GroupMemberConnection`](#groupmemberconnection) | A membership of a user within this group. |
@@ -7694,6 +7714,13 @@ Event action.
 | `REOPENED` | Reopened action. |
 | `UPDATED` | Updated action. |
 
+### `ExportableTypeEnum`
+
+| Value | Description |
+| ----- | ----------- |
+| `Epic` | Epic. |
+| `Label` | Label. |
+
 ### `GroupMemberRelation`
 
 Group member relation.
@@ -8829,6 +8856,13 @@ abstract types.
 
 ### Unions
 
+#### `ExportableEntities`
+
+One of:
+
+- [`Epic`](#epic)
+- [`Label`](#label)
+
 #### `PackageMetadata`
 
 Represents metadata associated with a Package.
-- 
GitLab