1 files changed, 59 insertions, 0 deletions
diff --git a/app/models/integrations/mattermost_slash_commands.rb b/app/models/integrations/mattermost_slash_commands.rb
new file mode 100644
index 00000000000..6cd664da9e7
--- /dev/null
+++ b/app/models/integrations/mattermost_slash_commands.rb
@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+module Integrations
+  class MattermostSlashCommands < BaseSlashCommands
+    include Ci::TriggersHelper
+
+    prop_accessor :token
+
+    def can_test?
+      false
+    end
+
+    def title
+      'Mattermost slash commands'
+    end
+
+    def description
+      "Perform common tasks with slash commands."
+    end
+
+    def self.to_param
+      'mattermost_slash_commands'
+    end
+
+    def configure(user, params)
+      token = ::Mattermost::Command.new(user)
+        .create(command(params))
+
+      update(active: true, token: token) if token
+    rescue ::Mattermost::Error => e
+      [false, e.message]
+    end
+
+    def list_teams(current_user)
+      [::Mattermost::Team.new(current_user).all, nil]
+    rescue ::Mattermost::Error => e
+      [[], e.message]
+    end
+
+    def chat_responder
+      ::Gitlab::Chat::Responder::Mattermost
+    end
+
+    private
+
+    def command(params)
+      pretty_project_name = project.full_name
+
+      params.merge(
+        auto_complete: true,
+        auto_complete_desc: "Perform common operations on: #{pretty_project_name}",
+        auto_complete_hint: '[help]',
+        description: "Perform common operations on: #{pretty_project_name}",
+        display_name: "GitLab / #{pretty_project_name}",
+        method: 'P',
+        username: 'GitLab')
+    end
+  end
+end