firefly-iii/app/Repositories/Currency/CurrencyRepositoryInterface.php

<?php
declare(strict_types = 1);

namespace FireflyIII\Repositories\Currency;


use FireflyIII\Models\Preference;
use FireflyIII\Models\TransactionCurrency;
use Illuminate\Support\Collection;

/**
 * Interface CurrencyRepositoryInterface
 *
 * @package FireflyIII\Repositories\Currency
 */
interface CurrencyRepositoryInterface
{
    /**
     * @param TransactionCurrency $currency
     *
     * @return int
     */
    public function countJournals(TransactionCurrency $currency);

    /**
     * Find by ID
     *
     * @param int $currencyId
     *
     * @return TransactionCurrency
     */
    public function find(int $currencyId) : TransactionCurrency;

    /**
     * Find by currency code
     *
     * @param string $currencyCode
     *
     * @return TransactionCurrency
     */
    public function findByCode(string $currencyCode) : TransactionCurrency;

    /**
     * Find by currency name
     *
     * @param string $currencyName
     *
     * @return TransactionCurrency
     */
    public function findByName(string $currencyName) : TransactionCurrency;

    /**
     * Find by currency symbol
     *
     * @param string $currencySymbol
     *
     * @return TransactionCurrency
     */
    public function findBySymbol(string $currencySymbol) : TransactionCurrency;

    /**
     * @return Collection
     */
    public function get();

    /**
     * @param Preference $preference
     *
     * @return TransactionCurrency
     */
    public function getCurrencyByPreference(Preference $preference);

    /**
     * @param array $data
     *
     * @return TransactionCurrency
     */
    public function store(array $data);

    /**
     * @param TransactionCurrency $currency
     * @param array               $data
     *
     * @return TransactionCurrency
     */
    public function update(TransactionCurrency $currency, array $data);

}