# frozen_string_literal: true

class Api::V1::Statuses::ReferredByStatusesController < Api::BaseController
  include Authorization

  before_action -> { doorkeeper_authorize! :read, :'read:statuses' }
  before_action :set_status
  after_action :insert_pagination_headers

  def index
    @statuses = load_statuses

    if compact?
      render json: CompactStatusesPresenter.new(statuses: @statuses), serializer: REST::CompactStatusesSerializer
    else
      account_ids = @statuses.filter(&:quote?).map { |status| status.quote.account_id }.uniq

      render json: @statuses, each_serializer: REST::StatusSerializer, relationships: StatusRelationshipsPresenter.new(@statuses, current_user&.account_id), account_relationships: AccountRelationshipsPresenter.new(account_ids, current_user&.account_id)
    end
  end

  private

  def load_statuses
    cached_referred_by_statuses
  end

  def cached_referred_by_statuses
    cache_collection(results, Status)
  end

  def results
    @_results ||= Status.where(id: referred_by_statuses).to_a_paginated_by_id(
      limit_param(DEFAULT_STATUSES_LIMIT),
      params_slice(:max_id, :since_id, :min_id)
    )
  end

  def referred_by_statuses
    @status.referred_by_statuses(current_user&.account)
  end

  def compact?
    truthy_param?(:compact)
  end

  def insert_pagination_headers
    set_pagination_headers(next_path, prev_path)
  end

  def next_path
    api_v1_status_referred_by_index_url pagination_params(max_id: pagination_max_id) if records_continue?
  end

  def prev_path
    api_v1_status_referred_by_index_url pagination_params(min_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 set_status
    @status = Status.include_expired.find(params[:status_id])
    authorize @status, :show?
  rescue Mastodon::NotPermittedError
    not_found
  end

  def pagination_params(core_params)
    params.slice(:limit, :compact).permit(:limit, :compact).merge(core_params)
  end
end
