FEATURE: Merge discourse-automation (#26432)

Automation (previously known as discourse-automation) is now a core plugin.

plugins/automation/lib/discourse_automation/scripts/send_pms.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+DiscourseAutomation::Scriptable.add(DiscourseAutomation::Scripts::SEND_PMS) do
+  version 1
+
+  placeholder :sender_username
+  placeholder :receiver_username
+
+  field :sender, component: :user
+  field :receiver, component: :user, triggerable: :recurring
+  field :sendable_pms, component: :pms, accepts_placeholders: true, required: true
+
+  triggerables %i[
+                 user_badge_granted
+                 user_added_to_group
+                 stalled_wiki
+                 recurring
+                 user_promoted
+                 api_call
+                 user_removed_from_group
+               ]
+
+  script do |context, fields, automation|
+    sender_username = fields.dig("sender", "value") || Discourse.system_user.username
+
+    placeholders = { sender_username: sender_username }.merge(context["placeholders"] || {})
+
+    usernames = context["usernames"] || []
+
+    # optional field when using recurring triggerable
+    if u = fields.dig("receiver", "value")
+      usernames << u
+    end
+
+    usernames.compact.uniq.each do |username|
+      placeholders[:receiver_username] = username
+      Array(fields.dig("sendable_pms", "value")).each do |sendable|
+        next if !sendable["title"] || !sendable["raw"]
+
+        pm = {}
+        pm["title"] = utils.apply_placeholders(sendable["title"], placeholders)
+        pm["raw"] = utils.apply_placeholders(sendable["raw"], placeholders)
+        pm["target_usernames"] = Array(username)
+
+        utils.send_pm(
+          pm,
+          sender: sender_username,
+          automation_id: automation.id,
+          delay: sendable["delay"],
+          prefers_encrypt: !!sendable["prefers_encrypt"],
+        )
+      end
+    end
+  end
+end