GraphQL: add deleteBaseImage mutation

Allow removing an existing base image.

Update CHANGELOG since Base Image support is now complete.

Signed-off-by: Riccardo Binetti <riccardo.binetti@secomind.com>

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Allow creating and managing groups based on selectors.
 - Add support for device's `network_interfaces` ([#231](https://github.com/edgehog-device-manager/edgehog/pull/231))
 - Add support for base image collections ([#229](https://github.com/edgehog-device-manager/edgehog/pull/229), [#230](https://github.com/edgehog-device-manager/edgehog/pull/230)).
+- Add support for base images ([#240](https://github.com/edgehog-device-manager/edgehog/pull/240))
 
 ### Changed
 - Handle Device part numbers for nonexistent system models

backend/lib/edgehog_web/resolvers/base_images.ex

@@ -100,6 +100,13 @@ defmodule EdgehogWeb.Resolvers.BaseImages do
     end
   end
 
+  def delete_base_image(args, _resolution) do
+    with {:ok, %BaseImage{} = base_image} <- BaseImages.fetch_base_image(args.base_image_id),
+         {:ok, %BaseImage{} = base_image} <- BaseImages.delete_base_image(base_image) do
+      {:ok, %{base_image: base_image}}
+    end
+  end
+
   # TODO: consider extracting all this functions dealing with locale wrapping/unwrapping
   # in a dedicated resolver/helper module
 

backend/lib/edgehog_web/schema/base_images_types.ex

@@ -254,5 +254,22 @@ defmodule EdgehogWeb.Schema.BaseImagesTypes do
 
       resolve &Resolvers.BaseImages.update_base_image/2
     end
+
+    @desc "Deletes a base image."
+    payload field :delete_base_image do
+      input do
+        @desc "The ID of the base image to be deleted."
+        field :base_image_id, non_null(:id)
+      end
+
+      output do
+        @desc "The deleted base image."
+        field :base_image, non_null(:base_image)
+      end
+
+      middleware Absinthe.Relay.Node.ParseIDs, base_image_id: :base_image
+
+      resolve &Resolvers.BaseImages.delete_base_image/2
+    end
   end
 end

backend/test/edgehog_web/schema/mutation/delete_base_image_test.exs

@@ -0,0 +1,78 @@
+#
+# This file is part of Edgehog.
+#
+# Copyright 2023 SECO Mind Srl
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+defmodule EdgehogWeb.Schema.Mutation.DeleteBaseImageTest do
+  use EdgehogWeb.ConnCase
+  use Edgehog.BaseImagesStorageMockCase
+
+  alias Edgehog.BaseImages
+  import Edgehog.BaseImagesFixtures
+
+  describe "deleteBaseImage mutation" do
+    setup do
+      {:ok, base_image: base_image_fixture()}
+    end
+
+    test "deletes existing base image", %{
+      conn: conn,
+      api_path: api_path,
+      base_image: base_image
+    } do
+      response = delete_base_image_mutation(conn, api_path, base_image.id)
+      assert response["data"]["deleteBaseImage"]["baseImage"]["version"] == base_image.version
+      assert BaseImages.fetch_base_image(base_image.id) == {:error, :not_found}
+    end
+
+    test "fails with non-existing base image", %{
+      conn: conn,
+      api_path: api_path
+    } do
+      response = delete_base_image_mutation(conn, api_path, "123456")
+      assert %{"errors" => [%{"status_code" => 404, "code" => "not_found"}]} = response
+    end
+  end
+
+  @query """
+  mutation DeleteBaseImage($input: DeleteBaseImageInput!) {
+    deleteBaseImage(input: $input) {
+      baseImage {
+        id
+        version
+        url
+        startingVersionRequirement
+        description
+        releaseDisplayName
+        baseImageCollection {
+          handle
+        }
+      }
+    }
+  }
+  """
+  defp delete_base_image_mutation(conn, api_path, db_id) do
+    base_image_id = Absinthe.Relay.Node.to_global_id(:base_image, db_id, EdgehogWeb.Schema)
+
+    variables = %{input: %{base_image_id: base_image_id}}
+
+    conn = post(conn, api_path, query: @query, variables: variables)
+
+    json_response(conn, 200)
+  end
+end