Added bookmarks

• Added:
- bookmarks for GabPRO members only
- migration for creation of StatusBookmarks
- all necessary routes, controllers
- redux for adding, removing, fetching and displaying bookmarks
- bookmark icon
- doorkeeper scopes
- backend and frontend support

Bookmarks behave like likes/favorites, except they aren't shared with other users and do not have an associated counter.

dfea7368c9

app/controllers/api/v1/bookmarks_controller.rb

@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+class Api::V1::BookmarksController < Api::BaseController
+  before_action -> { doorkeeper_authorize! :read, :'read:bookmarks' }
+  before_action :require_user!
+  after_action :insert_pagination_headers
+
+  respond_to :json
+
+  def index
+    @statuses = []
+    if current_account.is_pro
+      @statuses = load_statuses
+    end
+    render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)
+  end
+
+  private
+
+  def load_statuses
+    cached_bookmarks
+  end
+
+  def cached_bookmarks
+    cache_collection(
+      Status.reorder(nil).joins(:status_bookmarks).merge(results),
+      Status
+    )
+  end
+
+  def results
+    @_results ||= account_bookmarks.paginate_by_id(
+      limit_param(DEFAULT_STATUSES_LIMIT),
+      params_slice(:max_id, :since_id, :min_id)
+    )
+  end
+
+  def account_bookmarks
+    current_account.status_bookmarks
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    api_v1_bookmarks_url pagination_params(max_id: pagination_max_id) if records_continue?
+  end
+
+  def prev_path
+    api_v1_bookmarks_url pagination_params(since_id: pagination_since_id) unless results.empty?
+  end
+
+  def pagination_max_id
+    results.last.id
+  end
+
+  def pagination_since_id
+    results.first.id
+  end
+
+  def records_continue?
+    results.size == limit_param(DEFAULT_STATUSES_LIMIT)
+  end
+
+  def pagination_params(core_params)
+    params.slice(:limit).permit(:limit).merge(core_params)
+  end
+end