Input validation

src/Pyz/Zed/LeapYear/Business/Checker/LeapYearChecker.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear\Business\Checker;
+
+class LeapYearChecker
+{
+    public function checkLeapYear($year)
+    {
+        return ($year % 4 === 0 && ($year % 100 !== 0 || $year % 400 === 0));
+    }
+}

src/Pyz/Zed/LeapYear/Business/LeapYearBusinessFactory.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear\Business;
+
+use Pyz\Zed\LeapYear\Business\Checker\LeapYearChecker;
+use Spryker\Zed\Kernel\Business\AbstractBusinessFactory;
+
+/**
+ * @method \Pyz\Zed\LeapYear\LeapYearConfig getConfig()
+ */
+class LeapYearBusinessFactory extends AbstractBusinessFactory
+{
+    public function createLeapYearChecker()
+    {
+        return new LeapYearChecker();
+    }
+}

src/Pyz/Zed/LeapYear/Business/LeapYearFacade.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear\Business;
+
+use Spryker\Zed\Kernel\Business\AbstractFacade;
+
+/**
+ * @method \Pyz\Zed\LeapYear\Business\LeapYearBusinessFactory getFactory()
+ */
+class LeapYearFacade extends AbstractFacade implements LeapYearFacadeInterface
+{
+    /**
+     * Specification:
+     * Converts any roman number from 1 to 3999 to integer
+     *
+     * @param $year
+     * @return bool
+     */
+    public function checkLeapYear($year): bool
+    {
+        return $this->getFactory()->createLeapYearChecker()->checkLeapYear($year);
+    }
+}

src/Pyz/Zed/LeapYear/Business/LeapYearFacadeInterface.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear\Business;
+
+interface LeapYearFacadeInterface
+{
+    public function checkLeapYear($year): bool;
+}

src/Pyz/Zed/LeapYear/LeapYearConfig.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear;
+
+use Spryker\Zed\Kernel\AbstractBundleConfig;
+
+class LeapYearConfig extends AbstractBundleConfig
+{
+}

src/Pyz/Zed/LeapYear/LeapYearDependencyProvider.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\LeapYear;
+
+use Spryker\Zed\Kernel\AbstractBundleDependencyProvider;
+
+class LeapYearDependencyProvider extends AbstractBundleDependencyProvider
+{
+}

src/Pyz/Zed/RomanNumbers/Business/Converter/RomanNumbersConverter.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers\Business\Converter;
+
+use function PHPUnit\Framework\throwException;
+use Pyz\Zed\RomanNumbers\Business\Exception\NotARomanNumberException;
+class RomanNumbersConverter
+{
+    private const NUMBERS = [
+    'I' => 1,
+    'V' => 5,
+    'X' => 10,
+    'L' => 50,
+    'C' => 100,
+    'D' => 500,
+    'M' => 1000,
+    ];
+
+    /**
+     * @param string $romanNumbers
+     * @return int
+     * @throws NotARomanNumberException
+     */
+    public function convert(string $romanNumbers): int
+    {
+        if (!$this->isValidRomanNumber($romanNumbers)) {
+            throw new NotARomanNumberException($romanNumbers);
+        }
+
+        $romanNumbers = str_replace('IV', 'IIII', $romanNumbers);
+        $romanNumbers = str_replace('IX', 'VIIII', $romanNumbers);
+        $romanNumbers = str_replace('XL', 'XXXX', $romanNumbers);
+        $romanNumbers = str_replace('XC', 'LXXXX', $romanNumbers);
+        $romanNumbers = str_replace('CD', 'CCCC', $romanNumbers);
+        $romanNumbers = str_replace('CM', 'DCCCC', $romanNumbers);
+        $romanNumbers = str_replace('XD', 'CCCCLXXXX', $romanNumbers);
+
+        $result = 0;
+        $result += substr_count($romanNumbers, 'I');
+        $result += substr_count($romanNumbers, 'V') * 5;
+        $result += substr_count($romanNumbers, 'X') * 10;
+        $result += substr_count($romanNumbers, 'L') * 50;
+        $result += substr_count($romanNumbers, 'C') * 100;
+        $result += substr_count($romanNumbers, 'D') * 500;
+        $result += substr_count($romanNumbers, 'M') * 1000;
+
+        return $result;
+    }
+
+    /**
+     * @param string $romanNumbers
+     * @return bool
+     */
+    private function isValidRomanNumber(string $romanNumbers): bool
+    {
+        if (empty($romanNumbers)) {
+            return false;
+        }
+        $split_romanNumbers = str_split($romanNumbers);
+        foreach ($split_romanNumbers as $romanNumber) {
+            $validcharacters = ["I", "V", "X", "L", "C", "D", "M"];
+            if (!in_array($romanNumber, $validcharacters)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
+

src/Pyz/Zed/RomanNumbers/Business/Exception/NotARomanNumberException.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers\Business\Exception;
+
+use Exception;
+
+class NotARomanNumberException extends Exception
+{
+}

src/Pyz/Zed/RomanNumbers/Business/RomanNumbersBusinessFactory.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers\Business;
+
+use Pyz\Zed\RomanNumbers\Business\Converter\RomanNumbersConverter;
+use Spryker\Zed\Kernel\Business\AbstractBusinessFactory;
+
+/**
+ * @method \Pyz\Zed\RomanNumbers\RomanNumbersConfig getConfig()
+ */
+class RomanNumbersBusinessFactory extends AbstractBusinessFactory
+{
+    public function createRomanNumbersConverter()
+    {
+        return new RomanNumbersConverter();
+    }
+}

src/Pyz/Zed/RomanNumbers/Business/RomanNumbersFacade.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers\Business;
+
+use Spryker\Zed\Kernel\Business\AbstractFacade;
+
+/**
+ * @method \Pyz\Zed\RomanNumbers\Business\RomanNumbersBusinessFactory getFactory()
+ */
+class RomanNumbersFacade extends AbstractFacade implements RomanNumbersFacadeInterface
+{
+    /**
+     * Specification:
+     * Converts any roman number from 1 to 3999 to integer
+     *
+     * @param string $romanNumbers
+     *
+     * @return int
+     */
+    public function convertRomanToInteger(string $romanNumber): int
+    {
+        return $this->getFactory()->createRomanNumbersConverter()->convert($romanNumber);
+    }
+}

src/Pyz/Zed/RomanNumbers/Business/RomanNumbersFacadeInterface.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers\Business;
+
+interface RomanNumbersFacadeInterface
+{
+    public function convertRomanToInteger(string $romanNumber): int;
+}

src/Pyz/Zed/RomanNumbers/RomanNumbersConfig.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers;
+
+use Spryker\Zed\Kernel\AbstractBundleConfig;
+
+class RomanNumbersConfig extends AbstractBundleConfig
+{
+}

src/Pyz/Zed/RomanNumbers/RomanNumbersDependencyProvider.php

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+<?php
+
+/**
+ * This file is part of the Spryker Commerce OS.
+ * For full license information, please view the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types = 1);
+
+namespace Pyz\Zed\RomanNumbers;
+
+use Spryker\Zed\Kernel\AbstractBundleDependencyProvider;
+use Spryker\Zed\Kernel\Container;
+
+/**
+ * @method \Pyz\Zed\RomanNumbers\RomanNumbersConfig getConfig()
+ */
+class RomanNumbersDependencyProvider extends AbstractBundleDependencyProvider
+{
+    /**
+     * @param \Spryker\Zed\Kernel\Container $container
+     *
+     * @return \Spryker\Zed\Kernel\Container
+     */
+    public function provideCommunicationLayerDependencies(Container $container): Container
+    {
+        $container = parent::provideCommunicationLayerDependencies($container);
+
+        return $container;
+    }
+
+    /**
+     * @param \Spryker\Zed\Kernel\Container $container
+     *
+     * @return \Spryker\Zed\Kernel\Container
+     */
+    public function provideBusinessLayerDependencies(Container $container): Container
+    {
+        $container = parent::provideBusinessLayerDependencies($container);
+
+        return $container;
+    }
+
+    /**
+     * @param \Spryker\Zed\Kernel\Container $container
+     *
+     * @return \Spryker\Zed\Kernel\Container
+     */
+    public function providePersistenceLayerDependencies(Container $container): Container
+    {
+        $container = parent::providePersistenceLayerDependencies($container);
+
+        return $container;
+    }
+}