Gab Social. All are welcome.

app/controllers/api/v1/notifications_controller.rb

@@ -0,0 +1,91 @@
+# frozen_string_literal: true
+
+class Api::V1::NotificationsController < Api::BaseController
+  before_action -> { doorkeeper_authorize! :read, :'read:notifications' }, except: [:clear, :dismiss]
+  before_action -> { doorkeeper_authorize! :write, :'write:notifications' }, only: [:clear, :dismiss]
+  before_action :require_user!
+  after_action :insert_pagination_headers, only: :index
+
+  respond_to :json
+
+  DEFAULT_NOTIFICATIONS_LIMIT = 15
+
+  def index
+    @notifications = load_notifications
+    render json: @notifications, each_serializer: REST::NotificationSerializer, relationships: StatusRelationshipsPresenter.new(target_statuses_from_notifications, current_user&.account_id)
+  end
+
+  def show
+    @notification = current_account.notifications.find(params[:id])
+    render json: @notification, serializer: REST::NotificationSerializer
+  end
+
+  def clear
+    current_account.notifications.delete_all
+    render_empty
+  end
+
+  def dismiss
+    current_account.notifications.find_by!(id: params[:id]).destroy!
+    render_empty
+  end
+
+  private
+
+  def load_notifications
+    cache_collection paginated_notifications, Notification
+  end
+
+  def paginated_notifications
+    browserable_account_notifications.paginate_by_id(
+      limit_param(DEFAULT_NOTIFICATIONS_LIMIT),
+      params_slice(:max_id, :since_id, :min_id)
+    )
+  end
+
+  def browserable_account_notifications
+    current_account.notifications.browserable(exclude_types, from_account)
+  end
+
+  def target_statuses_from_notifications
+    @notifications.reject { |notification| notification.target_status.nil? }.map(&:target_status)
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    unless @notifications.empty?
+      api_v1_notifications_url pagination_params(max_id: pagination_max_id)
+    end
+  end
+
+  def prev_path
+    unless @notifications.empty?
+      api_v1_notifications_url pagination_params(min_id: pagination_since_id)
+    end
+  end
+
+  def pagination_max_id
+    @notifications.last.id
+  end
+
+  def pagination_since_id
+    @notifications.first.id
+  end
+
+  def exclude_types
+    val = params.permit(exclude_types: [])[:exclude_types] || []
+    val = [val] unless val.is_a?(Enumerable)
+    val
+  end
+
+  def from_account
+    params[:account_id]
+  end
+
+  def pagination_params(core_params)
+    params.slice(:limit, :exclude_types).permit(:limit, exclude_types: []).merge(core_params)
+  end
+end