Initial commit

author/project/system/controllers/core.php

@@ -0,0 +1,121 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\controllers;
+
+// Files of the project
+use mirzaev\notchat\views\manager,
+	mirzaev\notchat\models\core as models,
+	mirzaev\notchat\models\account_model as account,
+	mirzaev\notchat\models\session_model as session;
+
+// Library for ArangoDB
+use ArangoDBClient\Document as _document;
+
+// Framework for PHP
+use mirzaev\minimal\controller;
+
+/**
+ * Core of controllers
+ *
+ * @package mirzaev\notchat\controllers
+ * @author mirzaev < mail >
+ */
+class core extends controller
+{
+	/**
+	 * Postfix for name of controllers files
+	 */
+	final public const POSTFIX = '';
+
+	/**
+	 * Instance of a session
+	 */
+	protected readonly session session;
+
+	/**
+	 * Instance of an account
+	 */
+	protected readonly ?account account;
+
+	/**
+	 * Registry of errors
+	 */
+	protected array errors = [
+		'session' => [],
+		'account' => []
+	];
+
+	/**
+	 * Constructor of an instance
+	 *
+	 * @param bool initialize Initialize a controller?
+	 *
+	 * @return void
+	 */
+	public function __construct(bool initialize = true)
+	{
+		// Blocking requests from CloudFlare (better to write this blocking into nginx config file)
+		if (_SERVER['HTTP_USER_AGENT'] === 'nginx-ssl early hints') return;
+
+		// For the extends system
+		parent::__construct(initialize);
+
+		if (initialize) {
+			// Initializing is requested
+
+			// Initializing of models core (connect to ArangoDB...)
+			new models();
+
+			// Initializing of the date until which the session will be active
+			expires = strtotime('+1 week');
+
+			// Initializing of default value of hash of the session
+			_COOKIE["session"] ??= null;
+
+			// Initializing of session
+			this->session = new session(_COOKIE["session"], expires, this->errors['session']);
+
+			// Handle a problems with initializing a session
+			if (!empty(this->errors['session'])) die;
+			else if (_COOKIE["session"] !== this->session->hash) {
+				// Hash of the session is changed (implies that the session has expired and recreated)
+
+				// Write a new hash of the session to cookies
+				setcookie(
+					'session',
+					this->session->hash,
+					[
+						'expires' => expires,
+						'path' => '/',
+						'secure' => true,
+						'httponly' => true,
+						'samesite' => 'strict'
+					]
+				);
+			}
+
+			// Initializing of preprocessor of views
+			this->view = new templater(this->session);
+		}
+	}
+
+	/**
+	 * Check of initialization
+	 *
+	 * Checks whether a property is initialized in a document instance from ArangoDB
+	 *
+	 * @param string name Name of the property from ArangoDB
+	 *
+	 * @return bool The property is initialized?
+	 */
+	public function __isset(string name): bool
+	{
+		// Check of initialization of the property and exit (success)
+		return match (name) {
+			default => isset(this->{name})
+		};
+	}
+
+}

author/project/system/controllers/index.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\controllers;
+
+// Files of the project
+use mirzaev\notchat\controllers\core;
+
+/**
+ * Index controller
+ *
+ * @package mirzaev\notchat\controllers
+ * @author mirzaev < mail >
+ */
+final class index extends core
+{
+	/**
+	 * Render the main page
+	 *
+	 * @param array parameters Parameters of the request (POST + GET)
+	 */
+	public function index(array parameters = []): ?string
+	{
+		// Exit (success)
+		if (_SERVER['REQUEST_METHOD'] === 'GET') return this->view->render(DIRECTORY_SEPARATOR . 'index.html');
+		else if (_SERVER['REQUEST_METHOD'] === 'POST') return main;
+
+		// Exit (fail)
+		return null;
+	}
+}

author/project/system/models/core.php

@@ -0,0 +1,289 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\models;
+
+// Framework for PHP
+use mirzaev\minimal\model;
+
+// Framework for ArangoDB
+use mirzaev\arangodb\connection as arangodb,
+	mirzaev\arangodb\collection,
+	mirzaev\arangodb\document;
+
+// Libraries for ArangoDB
+use ArangoDBClient\Document as _document,
+	ArangoDBClient\DocumentHandler as _document_handler;
+
+// Built-in libraries
+use exception;
+
+/**
+ * Core of models
+ *
+ * @package mirzaev\notchat\controllers
+ * @author mirzaev < mail >
+ */
+class core extends model
+{
+	/**
+	 * Postfix for name of models files
+	 */
+	final public const POSTFIX = '';
+
+	/**
+	 * Path to the file with settings of connecting to the ArangoDB
+	 */
+	final public const ARANGODB = '../settings/arangodb.php';
+
+	/**
+	 * Instance of the session of ArangoDB
+	 */
+	protected static arangodb arangodb;
+
+	/**
+	 * Name of the collection in ArangoDB
+	 */
+	public const COLLECTION = 'THIS_COLLECTION_SHOULD_NOT_EXIST_REPLACE_IT_IN_THE_MODEL';
+
+	/**
+	 * Constructor of an instance
+	 *
+	 * @param bool initialize Initialize a model?
+	 * @param ?arangodb arangodb Instance of a session of ArangoDB
+	 *
+	 * @return void
+	 */
+	public function __construct(bool initialize = true, ?arangodb arangodb = null)
+	{
+		// For the extends system
+		parent::__construct(initialize);
+
+		if (initialize) {
+			// Initializing is requested
+
+			if (isset(arangodb)) {
+				// Recieved an instance of a session of ArangoDB
+
+				// Write an instance of a session of ArangoDB to the property
+				this->__set('arangodb', arangodb);
+			} else {
+				// Not recieved an instance of a session of ArangoDB
+
+				// Initializing of an instance of a session of ArangoDB
+				this->__get('arangodb');
+			}
+		}
+	}
+
+	/**
+	 * Read from ArangoDB
+	 *
+	 * @param string filter Expression for filtering (AQL)
+	 * @param string sort Expression for sorting (AQL)
+	 * @param int amount Amount of documents for collect
+	 * @param int page Page
+	 * @param string return Expression describing the parameters to return (AQL)
+	 * @param array &errors The registry on errors
+	 *
+	 * @return _document|array|null An array of instances of documents from ArangoDB, if they are found
+	 */
+	public static function read(
+		string filter = '',
+		string sort = 'd.created DESC, d._key DESC',
+		int amount = 1,
+		int page = 1,
+		string return = 'd',
+		array &errors = []
+	): _document|array|null {
+		try {
+			if (collection::init(static::arangodb->session, static::COLLECTION)) {
+				// Initialized the collection
+
+				// Read from ArangoDB and exit (success)
+				return collection::search(
+					static::arangodb->session,
+					sprintf(
+						<<<'AQL'
+							FOR d IN %s
+								%s
+								%s
+								LIMIT %d, %d
+								RETURN %s
+						AQL,
+						static::COLLECTION,
+						empty(filter) ? '' : "FILTER filter",
+						empty(sort) ? '' : "SORT sort",
+						--page <= 0 ? 0 : amount * page,
+						amount,
+						return
+					)
+				);
+			} else throw new exception('Failed to initialize the collection');
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+
+		// Exit (fail)
+		return null;
+	}
+
+	/**
+	 * Delete from ArangoDB
+	 *
+	 * @param _document instance Instance of the document from ArangoDB
+	 * @param array &errors The registry on errors
+	 *
+	 * @return bool Deleted from ArangoDB without errors?
+	 */
+	public static function delete(_document instance, array &errors = []): bool
+	{
+		try {
+			if (collection::init(static::arangodb->session, static::COLLECTION)) {
+				// Initialized the collection
+
+				// Delete from ArangoDB and exit (success)
+				return (new _document_handler(static::arangodb->session))->remove(instance);
+			} else throw new exception('Failed to initialize the collection');
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+
+		// Exit (fail)
+		return false;
+	}
+
+	/**
+	 * Update in ArangoDB
+	 *
+	 * @param _document instance Instance of the document from ArangoDB
+	 *
+	 * @return bool Writed to ArangoDB without errors?
+	 */
+	public static function update(_document instance): bool
+	{
+    // Update in ArangoDB and exit (success)
+		return document::update(static::arangodb->session, instance);
+	}
+
+	/**
+	 * Write
+	 *
+	 * @param string name Name of the property
+	 * @param mixed value Value of the property
+	 *
+	 * @return void
+	 */
+	public function __set(string name, mixed value = null): void
+	{
+		match (name) {
+			'arangodb' => (function () use (value) {
+				if (this->__isset('arangodb')) {
+					// Is alredy initialized
+
+					// Exit (fail)
+					throw new exception('Forbidden to reinitialize the session of ArangoDB (this::arangodb)', 500);
+				} else {
+					// Is not already initialized
+
+					if (value instanceof arangodb) {
+						// Recieved an appropriate value
+
+						// Write the property and exit (success)
+						self::arangodb = value;
+					} else {
+						// Recieved an inappropriate value
+
+						// Exit (fail)
+						throw new exception('Session of ArangoDB (this::arangodb) is need to be mirzaev\arangodb\connection', 500);
+					}
+				}
+			})(),
+			default => parent::__set(name, value)
+		};
+	}
+
+	/**
+	 * Read
+	 *
+	 * @param string name Name of the property
+	 *
+	 * @return mixed Content of the property, if they are found
+	 */
+	public function __get(string name): mixed
+	{
+		return match (name) {
+			'arangodb' => (function () {
+				try {
+					if (!this->__isset('arangodb')) {
+						// Is not initialized
+
+						// Initializing of a default value from settings
+						this->__set('arangodb', new arangodb(require static::ARANGODB));
+					}
+
+					// Exit (success)
+					return self::arangodb;
+				} catch (exception) {
+					// Exit (fail)
+					return null;
+				}
+			})(),
+			default => parent::__get(name)
+		};
+	}
+
+	/**
+	 * Delete
+	 *
+	 * @param string name Name of the property 
+	 *
+	 * @return void
+	 */
+	public function __unset(string name): void
+	{
+		// Deleting a property and exit (success)
+		parent::__unset(name);
+	}
+
+	/**
+	 * Check of initialization
+	 *
+	 * @param string name Name of the property
+	 *
+	 * @return bool The property is initialized?
+	 */
+	public function __isset(string name): bool
+	{
+		// Check of initialization of the property and exit (success)
+		return parent::__isset(name);
+	}
+
+	/**
+	 * Call a static property or method
+	 *
+	 * @param string name Name of the property or the method
+	 * @param array arguments Arguments for the method
+	 */
+	public static function __callStatic(string name, array arguments): mixed
+	{
+		match (name) {
+			'arangodb' => (new static)->__get('arangodb'),
+			default => throw new exception("Not found: name", 500)
+		};
+	}
+}
+

author/project/system/models/session.php

@@ -0,0 +1,276 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\models;
+
+// Files of the project
+use mirzaev\ebala\models\account,
+	mirzaev\ebala\models\traits\status;
+
+// Framework for ArangoDB
+use mirzaev\arangodb\collection,
+	mirzaev\arangodb\document;
+
+// Library для ArangoDB
+use ArangoDBClient\Document as _document;
+
+// Built-in libraries
+use exception;
+
+/**
+ * Model of session
+ *
+ * @package mirzaev\notchat\controllers
+ * @author mirzaev < mail >
+ */
+final class session extends core
+{
+	/**
+	 * Name of the collection in ArangoDB
+	 */
+	final public const COLLECTION = 'session';
+
+	/**
+	 * An instance of the ArangoDB document from ArangoDB
+	 */
+	protected readonly _document document;
+
+	/**
+	 * Constructor of an instance
+	 *
+	 * Initialize of a session and write them to the this->document property
+	 *
+	 * @param ?string hash Hash of the session in ArangoDB
+	 * @param ?int expires Date of expiring of the session (used for creating a new session)
+	 * @param array &errors Registry of errors
+	 *
+	 * @return static instance of the ArangoDB document of session
+	 */
+	public function __construct(?string hash = null, ?int expires = null, array &errors = [])
+	{
+		try {
+			if (collection::init(static::arangodb->session, self::COLLECTION)) {
+				// Initialized the collection
+
+				if (this->search(hash, errors)) {
+					// Found an instance of the ArangoDB document of session and received a session hash
+				} else {
+					// Not found an instance of the ArangoDB document of session
+
+					// Initializing a new session and write they into ArangoDB
+					_id = document::write(this::arangodb->session, self::COLLECTION, [
+						'active' => true,
+						'expires' => expires ?? time() + 604800,
+						'ip' => _SERVER['REMOTE_ADDR'],
+						'x-forwarded-for' => _SERVER['HTTP_X_FORWARDED_FOR'] ?? null,
+						'referer' => _SERVER['HTTP_REFERER'] ?? null,
+						'useragent' => _SERVER['HTTP_USER_AGENT'] ?? null
+					]);
+
+					if (session = collection::search(this::arangodb->session, sprintf(
+						<<<AQL
+							FOR d IN %s
+								FILTER d._id == '%s' && d.expires > %d && d.active == true
+								RETURN d
+						AQL,
+						self::COLLECTION,
+						_id,
+						time()
+					))) {
+						// Found an instance of just created new session
+
+						// Generate a hash and write into an instance of the ArangoDB document of session property
+						session->hash = sodium_bin2hex(sodium_crypto_generichash(_id));
+
+						if (document::update(this::arangodb->session, session)) {
+							// Is writed update
+
+							// Write instance of the ArangoDB document of session into property and exit (success)
+							this->document = session;
+						} else throw new exception('Could not write the session data');
+					} else throw new exception('Could not create or find just created session');
+				}
+			} else throw new exception('Could not initialize the collection');
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+	}
+
+	/**
+	 * Search
+	 *
+	 * Search for the session in ArangoDB by hash and write they into this->document property if they are found
+	 *
+	 * @param ?string hash Hash of the session in ArangoDB
+	 * @param array &errors Registry of errors
+	 *
+	 * @return static instance of the ArangoDB document of session
+	 */
+	public function search(?string hash, array &errors = []): bool
+	{
+		try {
+			if (isset(hash)) {
+				// Recieved a hash
+
+				// Search the session data in ArangoDB
+				_document = session = collection::search(this::arangodb->session, sprintf(
+					<<<AQL
+					FOR d IN %s
+						FILTER d.hash == '%s' && d.expires > %d && d.active == true
+						RETURN d
+				AQL,
+					self::COLLECTION,
+					hash,
+					time()
+				));
+
+				if (_document instanceof _document) {
+					// An instance of the ArangoDB document of session is found
+
+					// Write the session data to the property
+					this->document = _document;
+
+					// Exit (success)
+					return true;
+				}
+			}
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+
+		// Exit (fail)
+		return false;
+	}
+
+	/**
+	 * 	Write to buffer of the session
+	 *
+	 * @param array data Data for merging
+	 * @param array &errors Registry of errors
+	 *
+	 * @return bool Is data has written into the session buffer?
+	 */
+	public function write(array data, array &errors = []): bool
+	{
+		try {
+			if (collection::init(this::arangodb->session, self::COLLECTION)) {
+				// Initialized the collection
+
+				// An instance of the ArangoDB document of session is initialized?
+				if (!isset(this->document)) throw new exception('An instance of the ArangoDB document of session is not initialized');
+
+				// Write data into buffwer of an instance of the ArangoDB document of session
+				this->document->buffer = array_replace_recursive(
+					this->document->buffer ?? [],
+					[_SERVER['INTERFACE'] => array_replace_recursive(this->document->buffer[_SERVER['INTERFACE']] ?? [], data)]
+				);
+
+				// Write to ArangoDB and exit (success)
+				return document::update(this::arangodb->session, this->document) ? true : throw new exception('Не удалось записать данные в буфер сессии');
+			} else throw new exception('Could not initialize the collection');
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+
+		return false;
+	}
+
+	/**
+	 * Write
+	 *
+	 * Write a property into an instance of the ArangoDB document
+	 *
+	 * @param string name Name of the property
+	 * @param mixed value Content of the property
+	 *
+	 * @return void
+	 */
+	public function __set(string name, mixed value = null): void
+	{
+		// Write to the property into an instance of the ArangoDB document and exit (success)
+		this->document->{name} = value;
+	}
+
+	/**
+	 * Read
+	 *
+	 * Read a property from an instance of the ArangoDB docuemnt
+	 * 
+	 * @param string name Name of the property
+	 *
+	 * @return mixed Content of the property
+	 */
+	public function __get(string name): mixed
+	{
+		// Read a property from an instance of the ArangoDB document and exit (success)
+		return match (name) {
+			'arangodb' => this::arangodb,
+			default => this->document->{name}
+		};
+	}
+
+	/**
+	 * Delete
+	 *
+	 * Deinitialize the property in an instance of the ArangoDB document
+	 *
+	 * @param string name Name of the property
+	 *
+	 * @return void
+	 */
+	public function __unset(string name): void
+	{
+		// Delete the property in an instance of the ArangoDB document and exit (success)
+		unset(this->document->{name});
+	}
+
+	/**
+	 * Check of initialization
+	 *
+	 * Check of initialization of the property into an instance of the ArangoDB document
+	 *
+	 * @param string name Name of the property
+	 *
+	 * @return bool The property is initialized?
+	 */
+	public function __isset(string name): bool
+	{
+		// Check of initializatio nof the property and exit (success)
+		return isset(this->document->{name});
+	}
+
+	/**
+	 * Execute a method
+	 *
+	 * Execute a method from an instance of the ArangoDB document
+	 *
+	 * @param string name Name of the method
+	 * @param array arguments Arguments for the method
+	 *
+	 * @return mixed Result of execution of the method
+	 */
+	public function __call(string name, array arguments = []): mixed
+	{
+		// Execute the method and exit (success)
+		if (method_exists(this->document, name)) return this->document->{name}(arguments);
+	}
+}

author/project/system/models/traits/status.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\models\traits;
+
+// Built-in libraries
+use exception;
+
+/**
+ * Trait fo initialization of a status
+ *
+ * @package mirzaev\notchat\models\traits
+ *
+ * @author mirzaev < mail >
+ */
+trait status
+{
+	/**
+	 * Initialize of a status
+	 *
+	 * @param array &errors Registry of errors
+	 *
+	 * @return ?bool Status, if they are found
+	 */
+	public function status(array &errors = []): ?bool
+	{
+		try {
+			// Read from ArangoDB and exit (success)
+			return this->document->active ?? false;
+		} catch (exception e) {
+			// Write to the registry of errors
+			errors[] = [
+				'text' => e->getMessage(),
+				'file' => e->getFile(),
+				'line' => e->getLine(),
+				'stack' => e->getTrace()
+			];
+		}
+
+		// Exit (fail)
+		return null;
+	}
+}
+

author/project/system/public/css/themes/default/main.css

@@ -0,0 +1,47 @@
+@charset "UTF-8";
+
+* {
+	text-decoration: none;
+	outline: none;
+	border: none;
+	/* font-family: , system-ui, sans-serif; */
+	font-family: "dejavu";
+	transition: 0.1s ease-out;
+}
+
+body {
+	margin: 0;
+	min-height: 100vh;
+	padding: 0;
+	display: flex;
+	flex-direction: column;
+	background-color: var(--background, #fafafa);
+}
+
+
+aside {
+}
+
+header {
+}
+
+main {
+	display: flex;
+	flex-direction: column;
+	align-items: center;
+	gap: 10px;
+	transition: 0s;
+}
+
+footer {
+}
+
+.unselectable {
+	-webkit-touch-callout: none;
+	-webkit-user-select: none;
+	-khtml-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+}
+

author/project/system/public/index.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat;
+
+use mirzaev\minimal\core;
+use mirzaev\minimal\router;
+
+/* ini_set('error_reporting', E_ALL);
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1); */
+
+define('VIEWS', realpath('..' . DIRECTORY_SEPARATOR . 'views'));
+define('STORAGE', realpath('..' . DIRECTORY_SEPARATOR . 'storage'));
+define('INDEX', __DIR__);
+
+// Автозагрузка
+require __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
+
+// Инициализация маршрутизатора
+router = new router;
+
+// Запись маршрутов
+router->write('/', 'index', 'index');
+
+// Инициализация ядра
+core = new core(namespace: __NAMESPACE__, router: router);
+
+// Обработка запроса
+echo core->start();
+

author/project/system/settings/.gitignore

@@ -0,0 +1,3 @@
+*
+!.gitignore
+!*.sample

author/project/system/settings/arangodb.php.sample

@@ -0,0 +1,8 @@
+<?php
+
+return [
+    'endpoint' => 'unix:///var/run/arangodb3/arango.sock',
+    'database' => 'notchat',
+    'name' => 'notchat',
+    'password' => ''
+];

author/project/system/views/templater.php

@@ -0,0 +1,202 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\notchat\views;
+
+// Files of the project
+use mirzaev\notchat\models\session,
+	mirzaev\notchat\models\account;
+
+// Framework for PHP
+use mirzaev\minimal\controller;
+
+// Templater of views
+use Twig\Loader\FilesystemLoader,
+	Twig\Environment as twig,
+	Twig\Extra\Intl\IntlExtension as intl,
+	Twig\TwigFilter;
+
+
+// Built-in libraries
+use ArrayAccess;
+
+/**
+ * Templater core
+ *
+ * @package mirzaev\notchat\views
+ * @author mirzaev < mail >
+ */
+final class templater extends controller implements ArrayAccess
+{
+	/**
+	 * Registry of global variables of view
+	 */
+	public array variables = [];
+
+	/**
+	 * Instance of twig templater 
+	 */
+	readonly public twig twig;
+
+	/**
+	 * Constructor of an instance
+	 *
+	 * @param ?session session Instance of the session of ArangoDB
+	 *
+	 * @return void
+	 */
+	public function __construct(?session &session = null): void
+	{
+		// Initializing of an instance of twig
+		this->twig = new twig(new FilesystemLoader(VIEWS));
+
+		// Initializing of global variables
+		this->twig->addGlobal('theme', 'default');
+		this->twig->addGlobal('server', _SERVER);
+		this->twig->addGlobal('cookies', _COOKIE);
+		if (!empty(session->status())) {
+			this->twig->addGlobal('session', session);
+		}
+
+		// Initializing of twig extensions
+		this->twig->addExtension(new intl());
+	}
+
+	/**
+	 * Render a HTML-document
+	 *
+	 * @param string file Related path to a HTML-document
+	 * @param ?array variables Registry of variables to push into registry of global variables
+	 *
+	 * @return ?string HTML-документ
+	 */
+	public function render(string file, ?array variables = null): ?string
+	{
+		// Generation and exit (success)
+		return this->twig->render('themes' . DIRECTORY_SEPARATOR . this->twig->getGlobal('theme') . DIRECTORY_SEPARATOR . file, variables + this->variables);
+	}
+
+	/**
+	 * Write
+	 *
+	 * Write a variable into registry of global variables
+	 *
+	 * @param string name Name of the variable
+	 * @param mixed value Value of the variable
+	 *
+	 * @return void
+	 */
+	public function __set(string name, mixed value = null): void
+	{
+		// Write the variable and exit (success)
+		this->variables[name] = value;
+	}
+
+	/**
+	 * Read
+	 *
+	 * Read a variable from registry of global variables
+	 *
+	 * @param string name Name of the variable
+	 *
+	 * @return mixed Content of the variable, if they are found
+	 */
+	public function __get(string name): mixed
+	{
+    // Read the variable and exit (success)
+		return this->variables[name];
+	}
+
+	/**
+	 * Delete
+	 *
+	 * Delete a variable from the registry of global variables
+	 *
+	 * @param string name Name of the variable 
+	 *
+	 * @return void
+	 */
+	public function __unset(string name): void
+	{
+	 // Delete the variable and exit (success)
+		unset(this->variables[name]);
+	}
+
+	/**
+	 * Check of initialization
+	 *
+	 * Check of initialization in registry of global variables
+	 *
+	 * @param string name Name of the variable
+	 *
+	 * @return bool The variable is initialized?
+	 */
+	public function __isset(string name): bool
+	{
+		// Check of initialization of the variable and exit (success)
+		return isset(this->variables[name]);
+	}
+
+	/**
+	 * Write
+	 *
+	 * Write a variable into registry of global variables
+	 *
+	 * @param mixed name Name of an offset of the variable
+	 * @param mixed value Value of the variable
+	 *
+	 * @return void
+	 */
+	public function offsetSet(mixed name, mixed value): void
+	{
+		// Write the variable and exit (success)
+		this->variables[name] = value;
+	}
+
+	/**
+	 * Read
+	 *
+	 * Read a variable from registry of global variables
+	 *
+	 * @param mixed name Name of the variable
+	 *
+	 * @return mixed Content of the variable, if they are found
+	 */
+	public function offsetGet(mixed name): mixed
+	{
+    // Read the variable and exit (success)
+		return this->variables[name];
+	}
+
+	/**
+	 * Delete
+	 *
+	 * Delete a variable from the registry of global variables
+	 *
+	 * @param mixed name Name of the variable 
+	 *
+	 * @return void
+	 */
+	public function offsetUnset(mixed name): void
+	{
+	 // Delete the variable and exit (success)
+		unset(this->variables[name]);
+	}
+
+	/**
+	 * Check of initialization
+	 *
+	 * Check of initialization in registry of global variables
+	 *
+	 * @param mixed name Name of the variable
+	 *
+	 * @return bool The variable is initialized?
+	 */
+	public function offsetExists(mixed name): bool
+	{
+		// Check of initialization of the variable and exit (success)
+		return isset(this->variables[name]);
+	}
+}
+

author/project/system/views/themes/default/core.html

@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+
+<html lang="ru">
+
+<head>
+	{% use 'head.html' with title as head_title, meta as head_meta, css as head_css %}
+
+	{% block title %}
+	{{ block('head_title') }}
+	{% endblock %}
+
+	{% block meta %}
+	{{ block('head_meta') }}
+	{% endblock %}
+
+	{{ block('head_css') }}
+	{% block css %}
+	{% endblock %}
+</head>
+
+<body>
+	{% block body %}
+	{% endblock %}
+
+	{% include 'js.html' %}
+	{% block js %}
+	{% endblock %}
+</body>
+
+</html>
+

author/project/system/views/themes/default/footer.html

@@ -0,0 +1,10 @@
+{% block css %}
+{% endblock %}
+
+{% block body %}
+<footer>
+</footer>
+{% endblock %}
+
+{% block js %}
+{% endblock %}

author/project/system/views/themes/default/head.html

@@ -0,0 +1,15 @@
+{% block title %}
+<title>{% if head.title != empty %}{{head.title}}{% else %}notchat by mirzaev{% endif %}</title>
+{% endblock %}
+
+{% block meta %}
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+{% for meta in head.metas %}
+<meta {% for name, value in meta.attributes %}{{name}}="{{value}}" {% endfor %}>
+{% endfor %}
+{% endblock %}
+
+{% block css %}
+<link type="text/css" rel="stylesheet" href="/css/themes/default/main.css" />
+{% endblock %}

author/project/system/views/themes/default/header.html

@@ -0,0 +1,10 @@
+{% block css %}
+{% endblock %}
+
+{% block body %}
+<header>
+</header>
+{% endblock %}
+
+{% block js %}
+{% endblock %}

author/project/system/views/themes/default/index.html

@@ -0,0 +1,27 @@
+{% extends "core.html" %}
+
+{% use "core.html" with css as core_css, body as core, js as core_js %}
+{% use "header.html" with css as header_css, body as header, js as header_js %}
+{% use "footer.html" with css as footer_css, body as footer, js as footer_js %}
+
+{% block css %}
+{{ block('core_css') }}
+{{ block('header_css') }}
+{{ block('footer_css') }}
+{% endblock %}
+
+{% block body %}
+{{ block('header') }}
+<main>
+	{% block main %}
+	{{ main|raw }}
+	{% endblock %}
+</main>
+{{ block('footer') }}
+{% endblock %}
+
+{% block js %}
+{{ block('footer_js') }}
+{{ block('header_js') }}
+{{ block('core_js') }}
+{% endblock %}

author/project/system/views/themes/default/js.html

@@ -0,0 +1,2 @@
+{% block js %}
+{% endblock %}