Add content element "skills"

Allow editors to add new content element "skills".
The element contains an input for a comma separated list of skill IDs.
A preview in backend is shown.
Frontend rendering is provided.

.gitignore

@@ -0,0 +1,3 @@
+/.Build/
+/composer.lock
+/vendor/

Classes/Backend/Preview.php

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+<?php
+
+namespace SkillDisplay\Typo3Extension\Backend;
+
+/*
+ * Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use SkillDisplay\PHPToolKit\Api\Skill;
+use TYPO3\CMS\Backend\View\PageLayoutView;
+use TYPO3\CMS\Backend\View\PageLayoutViewDrawItemHookInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+class Preview implements PageLayoutViewDrawItemHookInterface
+{
+    /**
+     * @var Skill
+     */
+    protected $skillApi;
+
+    public function __construct(
+        Skill $skillApi
+    ) {
+        $this->skillApi = $skillApi;
+    }
+
+    public function preProcess(
+        PageLayoutView &$parentObject,
+        &$drawItem,
+        &$headerContent,
+        &$itemContent,
+        array &$row
+    ) {
+        $row['skills'] = [];
+        $skills = GeneralUtility::intExplode(',', $row['skilldisplay_skills'], true);
+        foreach ($skills as $skillId) {
+            $row['skills'][] = $this->skillApi->getById($skillId);
+        }
+    }
+}

Classes/Frontend/DataProcessing/Skills.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace SkillDisplay\Typo3Extension\Frontend\DataProcessing;
+
+/*
+ * Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use SkillDisplay\PHPToolKit\Api\Skill;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+use TYPO3\CMS\Frontend\ContentObject\DataProcessorInterface;
+
+class Skills implements DataProcessorInterface
+{
+    /**
+     * @var Skill
+     */
+    protected $skillApi;
+
+    public function __construct(
+        Skill $skillApi
+    ) {
+        $this->skillApi = $skillApi;
+    }
+
+    public function process(
+        ContentObjectRenderer $cObj,
+        array $contentObjectConfiguration,
+        array $processorConfiguration,
+        array $processedData
+    ) {
+        $as = $cObj->stdWrapValue('as', $processorConfiguration, 'skills');
+        $skillIds = GeneralUtility::intExplode(
+            ',',
+            $cObj->stdWrapValue('skills', $processorConfiguration, ''),
+            true
+        );
+        $skills = [];
+
+        foreach ($skillIds as $skillId) {
+            $skills[] = $this->skillApi->getById($skillId);
+        }
+
+        $processedData[$as] = $skills;
+        return $processedData;
+    }
+}

Classes/SettingsFactory.php

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+<?php
+
+namespace SkillDisplay\Typo3Extension;
+
+/*
+ * Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use SkillDisplay\PHPToolKit\Configuration\Settings;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Http\ServerRequest;
+use TYPO3\CMS\Core\Site\SiteFinder;
+
+class SettingsFactory
+{
+    /**
+     * @var SiteFinder
+     */
+    private $siteFinder;
+
+    /**
+     * @var Context
+     */
+    private $context;
+
+
+    public function __construct(
+        SiteFinder $siteFinder,
+        Context $context
+    ) {
+        $this->siteFinder = $siteFinder;
+        $this->context = $context;
+    }
+
+    public function createFromCurrentSiteConfiguration(): Settings
+    {
+        $site = $this->getRequest()->getAttribute('site');
+        if ($site === null) {
+            throw new \Exception('Could not determine current site.', 1599721652);
+        }
+
+        $config = $site->getConfiguration();
+
+        return new Settings(
+            $config['skilldisplay_api_key'] ?? '',
+            ((int)$config['skilldisplay_verifier_id']) ?? 0,
+            $config['skilldisplay_user_secret'] ?? ''
+        );
+    }
+
+    private function getRequest(): ServerRequest
+    {
+        return $GLOBALS['TYPO3_REQUEST'];
+    }
+}

Classes/ViewHelpers/Verification/ButtonViewHelper.php

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+<?php
+
+namespace SkillDisplay\Typo3Extension\ViewHelpers\Verification;
+
+/*
+ * Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use SkillDisplay\PHPToolKit\Verification\Link;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+class ButtonViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    protected $escapeOutput = false;
+
+    public function initializeArguments()
+    {
+        $this->registerArgument('skill', 'integer', 'ID of the skill.', true);
+        $this->registerArgument('type', 'string', 'Type of verification', false, 'self');
+    }
+
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ) {
+        /** @var Link $link */
+        $link = GeneralUtility::makeInstance(Link::class);
+        return $link->getVerificationButton(
+            $arguments['type'],
+            $arguments['skill']
+        );
+    }
+}

Classes/ViewHelpers/Verification/UrlViewHelper.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace SkillDisplay\Typo3Extension\ViewHelpers\Verification;
+
+/*
+ * Copyright (C) 2020 Daniel Siepmann <coding@daniel-siepmann.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+use SkillDisplay\PHPToolKit\Verification\Link;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+class UrlViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    protected $escapeOutput = false;
+
+    public function initializeArguments()
+    {
+        $this->registerArgument('skill', 'integer', 'ID of the skill.', true);
+        $this->registerArgument('type', 'string', 'Type of verification', false, 'self');
+    }
+
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ) {
+        /** @var Link $link */
+        $link = GeneralUtility::makeInstance(Link::class);
+        return $link->getVerificationLink(
+            $arguments['type'],
+            $arguments['skill']
+        );
+    }
+}

Configuration/PageTSconfig/Index.tsconfig

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+@import 'EXT:skilldisplay/Configuration/PageTSconfig/Mod/Wizards/*.tsconfig'

Configuration/PageTSconfig/Mod/Wizards/Index.tsconfig

@@ -0,0 +1,6 @@
+mod {
+    wizards.newContentElement.wizardItems.skilldisplay {
+        header = LLL:EXT:skilldisplay/Resources/Private/Language/locallang_be.xlf:newContentElement.skilldisplay.header
+        show = *
+    }
+}

Configuration/PageTSconfig/Mod/Wizards/Skills.tsconfig

@@ -0,0 +1,15 @@
+mod {
+    wizards.newContentElement.wizardItems.skilldisplay {
+        elements {
+            skilldisplay_skills {
+                iconIdentifier = skilldisplay-skill
+                title = LLL:EXT:skilldisplay/Resources/Private/Language/locallang_tca.xlf:tt_content.skilldisplay_skills
+                description = LLL:EXT:skilldisplay/Resources/Private/Language/locallang_be.xlf:newContentElement.skilldisplay.skills.description
+                tt_content_defValues {
+                    CType = skilldisplay_skills
+                }
+            }
+        }
+    }
+    web_layout.tt_content.preview.skilldisplay_skills = EXT:skilldisplay/Resources/Private/Templates/Backend/ContentElements/Skills.html
+}

Configuration/Services.yaml

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+services:
+    _defaults:
+        autowire: true
+        autoconfigure: true
+        public: false
+
+    SkillDisplay\Typo3Extension\:
+        resource: '../Classes/*'
+
+    SkillDisplay\Typo3Extension\Frontend\DataProcessing\:
+        resource: '../Classes/Frontend/DataProcessing/*'
+        public: true
+
+    skilldisplay.settings:
+        class: 'SkillDisplay\PHPToolKit\Configuration\Settings'
+        factory:
+            - '@SkillDisplay\Typo3Extension\SettingsFactory'
+            - 'createFromCurrentSiteConfiguration'
+
+    SkillDisplay\PHPToolKit\Configuration\Settings:
+        alias: '@skilldisplay.settings'
+
+    SkillDisplay\PHPToolKit\Api\Skill:
+        arguments:
+            $settings: '@skilldisplay.settings'
+
+    SkillDisplay\PHPToolKit\Verification\Link:
+        public: true
+        arguments:
+            $settings: '@skilldisplay.settings'
+
+    SkillDisplay\Typo3Extension\Backend\Preview:
+        public: true

Configuration/SiteConfiguration/Overrides/sites.php

@@ -0,0 +1,39 @@
+<?php
+
+(function (string $extensionKey, string $tableName) {
+    $languagePath = 'LLL:EXT:' . $extensionKey . '/Resources/Private/Language/locallang_be.xlf:' . $tableName . '.';
+
+    \TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($GLOBALS['SiteConfiguration']['site'], [
+        'columns' => [
+            'skilldisplay_user_secret' => [
+                'label' => $languagePath . 'skilldisplay_user_secret',
+                'config' => [
+                    'type' => 'input',
+                ],
+            ],
+            'skilldisplay_api_key' => [
+                'label' => $languagePath . 'skilldisplay_api_key',
+                'config' => [
+                    'type' => 'input',
+                ],
+            ],
+            'skilldisplay_verifier_id' => [
+                'label' => $languagePath . 'skilldisplay_verifier_id',
+                'config' => [
+                    'type' => 'input',
+                ],
+            ],
+        ],
+        'types' => [
+            '0' => [
+                'showitem' => $GLOBALS['SiteConfiguration']['site']['types']['0']['showitem']
+                . ', ' . implode(',', [
+                    '--div--;' . $languagePath . 'div.skilldisplay',
+                    'skilldisplay_user_secret',
+                    'skilldisplay_api_key',
+                    'skilldisplay_verifier_id',
+                ]),
+            ],
+        ],
+    ]);
+})('skilldisplay', 'site');

Configuration/TCA/Overrides/sys_template.php

@@ -0,0 +1,9 @@
+<?php
+
+(function (string $extensionKey, string $tableName) {
+    \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addStaticFile(
+        $extensionKey,
+        'Configuration/TypoScript/',
+        'SkillDisplay'
+    );
+})('skilldisplay', 'sys_template');

Configuration/TCA/Overrides/tt_content.php

@@ -0,0 +1,27 @@
+<?php
+
+(function (string $extensionKey, string $tableName) {
+    $languagePath = 'LLL:EXT:' . $extensionKey . '/Resources/Private/Language/locallang_tca.xlf:' . $tableName . '.';
+
+    \TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($GLOBALS['TCA'][$tableName], [
+        'columns' => [
+            'CType' => [
+                'config' => [
+                    'itemGroups' => [
+                        'skilldisplay' => $languagePath . 'CType.itemGroups.skilldisplay',
+                    ],
+                ],
+            ],
+            'skilldisplay_skills' => [
+                'exclude' => 1,
+                'label' => $languagePath . 'skilldisplay_skills',
+                'description' => $languagePath . 'skilldisplay_skills.description',
+                'config' => [
+                    'type' => 'input',
+                    'eval' => 'required',
+                    'size' => 10,
+                ],
+            ],
+        ],
+    ]);
+})('skilldisplay', 'tt_content');

Configuration/TCA/Overrides/tt_content_skills.php

@@ -0,0 +1,46 @@
+<?php
+
+(function (string $extensionKey, string $tableName, string $contentType) {
+    $languagePath = 'LLL:EXT:' . $extensionKey . '/Resources/Private/Language/locallang_tca.xlf:' . $tableName . '.';
+
+    \TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($GLOBALS['TCA'][$tableName], [
+        'ctrl' => [
+            'typeicon_classes' => [
+                $contentType => 'skilldisplay-skill',
+            ],
+        ],
+        'types' => [
+            $contentType => [
+                'showitem' => implode(',', [
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:general',
+                    '--palette--;;general',
+                    'skilldisplay_skills',
+                    '--div--;LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:tabs.appearance',
+                    '--palette--;;frames',
+                    '--palette--;;appearanceLinks',
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:language',
+                    '--palette--;;language',
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:access',
+                    '--palette--;;hidden',
+                    '--palette--;;access',
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:categories',
+                    'categories',
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:notes',
+                    'rowDescription',
+                    '--div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:extended',
+                ]),
+            ],
+        ],
+    ]);
+
+    \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTcaSelectItem(
+        $tableName,
+        'CType',
+        [
+            $languagePath . $contentType,
+            $contentType,
+            'skilldisplay-skill',
+            'skilldisplay'
+        ]
+    );
+})('skilldisplay', 'tt_content', 'skilldisplay_skills');

Configuration/TypoScript/setup.typoscript

@@ -0,0 +1,11 @@
+tt_content.skilldisplay_skills = < lib.contentElement
+tt_content.skilldisplay_skills {
+    templateName = SkillDisplaySkills
+
+    dataProcessing {
+        10 = SkillDisplay\Typo3Extension\Frontend\DataProcessing\Skills
+        10 {
+            skills.field = skilldisplay_skills
+        }
+    }
+}

Resources/Private/Language/locallang_be.xlf

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+    <file source-language="en" datatype="plaintext">
+        <header/>
+        <body>
+            <trans-unit id="newContentElement.skilldisplay.header">
+                <source>SkillDisplay</source>
+            </trans-unit>
+            <trans-unit id="newContentElement.skilldisplay.skills.description">
+                <source>Renders one or multiple skills.</source>
+            </trans-unit>
+
+            <trans-unit id="site.div.skilldisplay">
+                <source>SkillDisplay</source>
+            </trans-unit>
+            <trans-unit id="site.skilldisplay_user_secret">
+                <source>User secret</source>
+            </trans-unit>
+            <trans-unit id="site.skilldisplay_api_key">
+                <source>API Key</source>
+            </trans-unit>
+            <trans-unit id="site.skilldisplay_verifier_id">
+                <source>Verifier ID</source>
+            </trans-unit>
+        </body>
+    </file>
+</xliff>

Resources/Private/Language/locallang_tca.xlf

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xliff version="1.0" xmlns:t3="http://typo3.org/schemas/xliff">
+    <file source-language="en" datatype="plaintext">
+        <header/>
+        <body>
+            <trans-unit id="tt_content.skilldisplay_skills">
+                <source>SkillDisplay: Skills</source>
+            </trans-unit>
+            <trans-unit id="tt_content.skilldisplay_skills.description">
+                <source>Comma separated list of UIDs.</source>
+            </trans-unit>
+            <trans-unit id="tt_content.CType.itemGroups.skilldisplay">
+                <source>SkillDisplay</source>
+            </trans-unit>
+        </body>
+    </file>
+</xliff>

Resources/Private/Templates/Backend/ContentElements/Skills.html

@@ -0,0 +1,19 @@
+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
+    xmlns:be="http://typo3.org/ns/TYPO3/CMS/Backend/ViewHelpers"
+    xmlns:sd="http://typo3.org/ns/SkillDisplay/Typo3Extension/ViewHelpers"
+    data-namespace-typo3-fluid="true">
+
+    <a href="{be:uri.editRecord(
+        uid: uid,
+        table: 'tt_content'
+    )}">
+        <ol>
+            <f:for each="{skills}" as="skill">
+                <li>
+                    <strong>{skill.title}</strong><br>
+                    {sd:verification.url(skill: skill.id)}
+                </li>
+            </f:for>
+        </ol>
+    </a>
+</html>

Resources/Private/Templates/ContentElements/SkillDisplaySkills.html

@@ -0,0 +1,13 @@
+<html xmlns:f="http://typo3.org/ns/TYPO3/CMS/Fluid/ViewHelpers"
+    xmlns:sd="http://typo3.org/ns/SkillDisplay/Typo3Extension/ViewHelpers"
+    data-namespace-typo3-fluid="true">
+    <f:for each="{skills}" as="skill">
+        <div class="card">
+            <div class="card-body">
+                <h5 class="card-title">{skill.title}</h5>
+                <p class="card-text">{skill.description -> f:format.html()}</p>
+                <sd:verification.button skill="{skill.id}"/>
+            </div>
+        </div>
+    </f:for>
+</html>

composer.json

@@ -0,0 +1,62 @@
+{
+    "name": "skilldisplay/typo3-skilldisplay",
+    "description": "SkillDisplay integration for TYPO3",
+    "type": "typo3-cms-extension",
+    "license": "GPL-2.0-or-later",
+    "homepage": "https://daniel-siepmann.de/projects/typo3-extension-skilldisplay.html",
+    "support": {
+        "email": "coding@daniel-siepmann.de",
+        "source": "https://github.com/DanielSiepmann/SkillDisplay/",
+        "issues": "https://github.com/DanielSiepmann/SkillDisplay/issues"
+    },
+    "authors": [
+        {
+            "name": "Daniel Siepmann",
+            "email": "coding@daniel-siepmann.de"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "SkillDisplay\\Typo3Extension\\": "Classes/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "SkillDisplay\\Typo3Extension\\Tests\\": "Tests/"
+        }
+    },
+    "require": {
+        "php": "^7.3.0",
+        "typo3/cms-core": "^10.4",
+        "skilldisplay/phptoolkit": "^1.0",
+        "typo3/cms-backend": "^10.4",
+        "typo3/cms-frontend": "^10.4"
+    },
+    "require-dev": {
+        "squizlabs/php_codesniffer": "^3.5",
+        "phpstan/phpstan": "^0.12.18",
+        "phpstan/extension-installer": "^1.0",
+        "maglnet/composer-require-checker": "^2.1",
+        "phpspec/prophecy-phpunit": "^2.0",
+        "saschaegerer/phpstan-typo3": "^0.13.1",
+        "sensiolabs/security-checker": "^6.0"
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "scripts": {
+        "post-autoload-dump": [
+            "mkdir -p .Build/web/typo3conf/ext/",
+            "[ -L .Build/web/typo3conf/ext/skilldisplay ] || ln -snvf ../../../../. .Build/web/typo3conf/ext/skilldisplay"
+        ]
+    },
+    "extra": {
+        "typo3/cms": {
+            "cms-package-dir": "{$vendor-dir}/typo3/cms",
+            "extension-key": "skilldisplay",
+            "web-dir": ".Build/web"
+        },
+        "branch-alias": {
+            "dev-main": "1.0.x-dev"
+        }
+    }
+}

ext_emconf.php

@@ -0,0 +1,21 @@
+<?php
+$EM_CONF[$_EXTKEY] = [
+    'title' => 'SkillDisplay',
+    'description' => 'Integrates SkillDisplay',
+    'category' => 'fe',
+    'state' => 'alpha',
+    'uploadfolder' => 0,
+    'createDirs' => '',
+    'clearCacheOnLoad' => 0,
+    'author' => 'Daniel Siepmann',
+    'author_email' => 'coding@daniel-siepmann.de',
+    'author_company' => '',
+    'version' => '0.1.0',
+    'constraints' => [
+        'depends' => [
+            'core' => '',
+        ],
+        'conflicts' => [],
+        'suggests' => [],
+    ],
+];

ext_localconf.php

@@ -0,0 +1,26 @@
+<?php
+
+(function (string $extKey) {
+    \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addPageTSConfig(
+        "@import 'EXT:" . $extKey . "/Configuration/PageTSconfig/*.tsconfig'"
+    );
+
+    $icons = [
+        'skill',
+    ];
+    $iconRegistry = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(
+        \TYPO3\CMS\Core\Imaging\IconRegistry::class
+    );
+    foreach ($icons as $icon) {
+        $iconRegistry->registerIcon(
+            'skilldisplay-' . $icon,
+            \TYPO3\CMS\Core\Imaging\IconProvider\BitmapIconProvider::class,
+            [
+                'source' => 'EXT:' . $extKey . '/Resources/Public/Icons/' . $icon . '.png',
+            ]
+        );
+    }
+
+    $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['cms/layout/class.tx_cms_layout.php']['tt_content_drawItem'][$extKey] =
+        \SkillDisplay\Typo3Extension\Backend\Preview::class;
+})('skilldisplay');

ext_tables.sql

@@ -0,0 +1,3 @@
+CREATE TABLE tt_content (
+    skilldisplay_skills TEXT,
+);

phpcs.xml.dist

@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<ruleset name="project">
+    <description>This project coding standard</description>
+
+    <file>Classes/</file>
+    <file>Tests/</file>
+
+    <!-- Set default settings -->
+    <arg value="sp"/>
+    <arg name="colors"/>
+    <arg name="encoding" value="utf-8" />
+    <arg name="extensions" value="php" />
+
+    <!-- Base rules -->
+    <rule ref="PSR12" />
+    <rule ref="Generic.Files.LineLength.TooLong">
+        <exclude-pattern>/Tests/*</exclude-pattern>
+    </rule>
+</ruleset>

phpstan.neon

@@ -0,0 +1,23 @@
+parameters:
+    level: max
+    paths:
+        - Classes
+        - Tests
+    checkMissingIterableValueType: false
+    reportUnmatchedIgnoredErrors: true
+    ignoreErrors:
+        - '#Cannot call method fetch\(\) on Doctrine\\DBAL\\Driver\\Statement\|int\.#'
+        - '#Cannot call method fetchAll\(\) on Doctrine\\DBAL\\Driver\\Statement\|int\.#'
+        - '#Cannot call method fetchColumn\(\) on Doctrine\\DBAL\\Driver\\Statement\|int\.#'
+        -
+            message: '#\$timestamp of function date expects int, int\|false given\.#'
+            path: Classes/Dashboard/Provider/PageviewsPerDay.php
+            count: 1
+        -
+            message: '#Parameter \#1 \$start of method DanielSiepmann\\Tracking\\Dashboard\\Provider\\PageviewsPerDay::getPageviewsInPeriod\(\) expects int, int\|false given\.#'
+            path: Classes/Dashboard/Provider/PageviewsPerDay.php
+            count: 1
+        -
+            message: '#Parameter \#2 \$end of method DanielSiepmann\\Tracking\\Dashboard\\Provider\\PageviewsPerDay::getPageviewsInPeriod\(\) expects int, int\|false given\.#'
+            path: Classes/Dashboard/Provider/PageviewsPerDay.php
+            count: 1