Add enable auto merge action

lib/fastlane/plugin/revenuecat_internal/helper/github_helper.rb

@@ -73,6 +73,64 @@ def self.get_releases_between_tags(github_token, start_tag_version, end_tag_vers
           start_tag < version && version <= end_tag && !release["prerelease"]
         end
       end
+
+      def self.get_pull_request_id(pull_request_number, github_token)
+        query_id = <<-GRAPHQL
+          query QueryId {
+            repository(name: "revenuecat-docs", owner: "RevenueCat") {
+              pullRequest(number: #{pull_request_number}) {
+                id
+              }
+            }
+          }
+        GRAPHQL
+
+        execute_github_graphql_request(
+          github_token,
+          query_id,
+          "Pull request ID queried successfully!",
+          "Error querying pull request. Pull request ID is nil."
+        ) do |response|
+          pull_request_id = JSON.parse(response.body)["data"]["repository"]["pullRequest"]["id"]
+          return pull_request_id unless pull_request_id.nil?
+        end
+      end
+
+      def self.enable_auto_merge(pull_request_id, github_token)
+        query_id = <<-GRAPHQL
+          mutation EnableAutoMerge {
+            enablePullRequestAutoMerge(input: {pullRequestId: "#{pull_request_id}", mergeMethod: SQUASH}) {
+                clientMutationId
+            }
+          }
+        GRAPHQL
+
+        execute_github_graphql_request(
+          github_token,
+          query_id,
+          "Auto merge enabled successfully!",
+          "Failed to enable auto merge."
+        )
+      end
+
+      private_class_method def self.execute_github_graphql_request(github_token, graphql_query, success_message, error_message)
+        url = URI('https://api.github.com/graphql')
+        http = Net::HTTP.new(url.host, url.port)
+        http.use_ssl = true
+
+        request = Net::HTTP::Post.new(url.request_uri)
+        request.basic_auth(github_token, '')
+        request.body = { query: graphql_query }.to_json
+
+        response = http.request(request)
+        if response.is_a?(Net::HTTPSuccess)
+          Fastlane::UI.message(success_message)
+          yield(response) if block_given?
+        else
+          Fastlane::UI.user_error!("#{error_message}\nCode: #{response.code}\nBody: #{response.read_body}")
+        end
+      end
+
     end
   end
 end