<?php

namespace App\Service\Campaign;

use App\Entity\Campaign\Keyword;

interface KeywordRepositoryInterface
{
    /**
     * @param int $id
     *
     * @return Keyword
     */
    public function findById(int $id): ?Keyword;

    /**
     * @param Keyword $keyword
     */
    public function save(Keyword $keyword): void;

    /**
     * @param Keyword $keyword
     */
    public function delete(Keyword $keyword): void;

    public function getLowestCPCValue();

    public function getHighestCPCValue();
}