Add in-progress labeling for draft PRs when opened

Ref #20

lib/custodian/github/processor.ex

@@ -68,6 +68,22 @@ defmodule Custodian.Github.Processor do
   - Removes all labels
   """
   @spec pr(map) :: {:ok, Bot.t()}
+  def pr(%{"pull_request" => %{"state" => "open", "draft" => true}} = params) do
+    Appsignal.increment_counter("event_pr_open_count", 1)
+    bot = Bots.get_bot_by!(repo_id: params["repository"]["id"])
+
+    labels = @github.Labels.all({bot, params["pull_request"]["number"]})
+
+    if !Enum.member?(labels, "ready-to-merge") && !Enum.member?(labels, "needs-review") do
+      @github.Labels.add(
+        {bot, params["pull_request"]["number"]},
+        "in-progress"
+      )
+    end
+
+    {:ok, bot}
+  end
+
   def pr(%{"pull_request" => %{"state" => "open"}} = params) do
     Appsignal.increment_counter("event_pr_open_count", 1)
     bot = Bots.get_bot_by!(repo_id: params["repository"]["id"])

test/custodian/github/processor_test.exs

@@ -96,6 +96,29 @@ defmodule Custodian.Github.ProcessorTest do
     assert_received {:add, ["needs-review"]}
   end
 
+  test "labels draft pr when opened" do
+    Bots.create_bot(%{
+      repo_id: 1,
+      owner: "lleger",
+      name: "gh-api-test",
+      installation_id: 1
+    })
+
+    params = %{
+      "repository" => %{
+        "id" => 1
+      },
+      "pull_request" => %{
+        "number" => "open",
+        "state" => "open",
+        "draft" => true
+      }
+    }
+
+    assert {:ok, bot} = Processor.pr(params)
+    assert_received {:add, ["in-progress"]}
+  end
+
   test "labels pr when closed" do
     Bots.create_bot(%{
       repo_id: 1,