Gab Social. All are welcome.

app/controllers/api/v1/accounts/statuses_controller.rb

@@ -0,0 +1,112 @@
+# frozen_string_literal: true
+
+class Api::V1::Accounts::StatusesController < Api::BaseController
+  before_action -> { authorize_if_got_token! :read, :'read:statuses' }
+  before_action :set_account
+  after_action :insert_pagination_headers
+
+  respond_to :json
+
+  def index
+    @statuses = load_statuses
+    render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id)
+  end
+
+  private
+
+  def set_account
+    @account = Account.find(params[:account_id])
+  end
+
+  def load_statuses
+    cached_account_statuses
+  end
+
+  def cached_account_statuses
+    cache_collection account_statuses, Status
+  end
+
+  def account_statuses
+    statuses = truthy_param?(:pinned) ? pinned_scope : permitted_account_statuses
+    statuses = statuses.paginate_by_id(limit_param(DEFAULT_STATUSES_LIMIT), params_slice(:max_id, :since_id, :min_id))
+
+    statuses.merge!(only_media_scope) if truthy_param?(:only_media)
+    statuses.merge!(no_replies_scope) if truthy_param?(:exclude_replies)
+    statuses.merge!(no_reblogs_scope) if truthy_param?(:exclude_reblogs)
+    statuses.merge!(hashtag_scope)    if params[:tagged].present?
+
+    statuses
+  end
+
+  def permitted_account_statuses
+    @account.statuses.permitted_for(@account, current_account)
+  end
+
+  def only_media_scope
+    Status.where(id: account_media_status_ids)
+  end
+
+  def account_media_status_ids
+    # `SELECT DISTINCT id, updated_at` is too slow, so pluck ids at first, and then select id, updated_at with ids.
+    # Also, Avoid getting slow by not narrowing down by `statuses.account_id`.
+    # When narrowing down by `statuses.account_id`, `index_statuses_20180106` will be used
+    # and the table will be joined by `Merge Semi Join`, so the query will be slow.
+    @account.statuses.joins(:media_attachments).merge(@account.media_attachments).permitted_for(@account, current_account)
+            .paginate_by_max_id(limit_param(DEFAULT_STATUSES_LIMIT), params[:max_id], params[:since_id])
+            .reorder(id: :desc).distinct(:id).pluck(:id)
+  end
+
+  def pinned_scope
+    @account.pinned_statuses
+  end
+
+  def no_replies_scope
+    Status.without_replies
+  end
+
+  def no_reblogs_scope
+    Status.without_reblogs
+  end
+
+  def hashtag_scope
+    tag = Tag.find_normalized(params[:tagged])
+
+    if tag
+      Status.tagged_with(tag.id)
+    else
+      Status.none
+    end
+  end
+
+  def pagination_params(core_params)
+    params.slice(:limit, :only_media, :exclude_replies).permit(:limit, :only_media, :exclude_replies).merge(core_params)
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    if records_continue?
+      api_v1_account_statuses_url pagination_params(max_id: pagination_max_id)
+    end
+  end
+
+  def prev_path
+    unless @statuses.empty?
+      api_v1_account_statuses_url pagination_params(min_id: pagination_since_id)
+    end
+  end
+
+  def records_continue?
+    @statuses.size == limit_param(DEFAULT_STATUSES_LIMIT)
+  end
+
+  def pagination_max_id
+    @statuses.last.id
+  end
+
+  def pagination_since_id
+    @statuses.first.id
+  end
+end