Create Report record when a Flag activity comes in

app/services/federails/moderation/report_creation_service.rb

@@ -5,7 +5,10 @@ def initialize(activity)
     end
 
     def call
-      Rails.logger.debug @activity.inspect
+      Report.create!(
+        federated_url: @activity["id"],
+        content: @activity["content"]
+      )
     end
   end
 end

spec/services/report_creation_service_spec.rb

@@ -0,0 +1,30 @@
+RSpec.describe Federails::Moderation::ReportCreationService do
+  let(:object) { create :user }
+  let(:actor) { create :distant_actor }
+  let(:valid_activity) { {
+    "@context" => "https://www.w3.org/ns/activitystreams",
+    "id" => "https://mastodon.me.uk/d977f377-214b-4efd-8a47-70a37fb7ea20",
+    "type" => "Flag",
+    "actor" => actor.federated_url,
+    "content" => "I don't like spiders",
+    "object" => [
+      object.federails_actor.federated_url
+    ]
+  } }
+
+  it "should create a new Report when passed a valid activity" do
+    expect { described_class.call(valid_activity) }.to change(Federails::Moderation::Report, :count).by(1)
+  end
+
+  context "when creating a new report" do
+    let(:report) { described_class.call(valid_activity) }
+
+    it "stores activity content in new report" do
+      expect(report.content).to eq "I don't like spiders"
+    end
+
+    it "stores activity id in new report" do
+      expect(report.federated_url).to eq "https://mastodon.me.uk/d977f377-214b-4efd-8a47-70a37fb7ea20"
+    end
+  end
+end