created cart system

mirzaev/arming_bot/system/controllers/cart.php

@@ -0,0 +1,121 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\arming_bot\controllers;
+
+// Files of the project
+use mirzaev\arming_bot\controllers\core,
+	mirzaev\arming_bot\models\product,
+	mirzaev\arming_bot\models\cart as model;
+
+// Framework for ArangoDB
+use mirzaev\arangodb\document;
+
+/**
+ * Controller of cart
+ *
+ * @package mirzaev\arming_bot\controllers
+ *
+ * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
+ * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
+ */
+final class cart extends core
+{
+	/**
+	 * Registry of errors
+	 */
+	protected array $errors = [
+		'session' => [],
+		'account' => [],
+		'cart' => []
+	];
+
+	/**
+	 * Write or delete from the cart
+	 *
+	 * @param array $parameters Parameters of the request (POST + GET)
+	 */
+	public function write(array $parameters = []): ?string
+	{
+		if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+			// POST request
+
+			// The cart contains the product?
+			$status = false;
+
+			// Validating @todo add throwing errors
+			if (!empty($parameters['product']) && preg_match('/[\d]+/', urldecode($parameters['product']), $matches)) $product = (int) $matches[0];
+
+			if (isset($product)) {
+				// Received and validated identfier of the product
+
+				// Search for the product
+				$product = product::read(
+					filter: "d.identifier == @identifier && d.deleted != true && d.hidden != true",
+					sort: 'd.created DESC',
+					amount: 1,
+					parameters: ['identifier' => $product],
+					errors: $this->errors['cart']
+				);
+
+				if ($product instanceof product) {
+					// Initialized the product
+
+					// Initializing of the cart
+					$cart = $this->session->cart(errors: $this->errors['cart']);
+
+					if ($cart instanceof model) {
+						// Initialized the cart
+
+						if (0 < $amount = $cart->has($product, errors: $this->errors['cart'])) {
+							// The cart contains the product
+
+							// temporary
+							/* $cart->disconnect($product, errors: $this->errors['cart']); */
+							$cart->cancel($product, errors: $this->errors['cart']);
+
+							$status = false;
+						} else {
+							// The cart not contains the product
+
+							// temporary
+							$cart->connect($product, errors: $this->errors['cart']);
+
+							$status = true;
+						}
+					}
+				}
+			}
+
+			// Initializing a response headers
+			header('Content-Type: application/json');
+			header('Content-Encoding: none');
+			header('X-Accel-Buffering: no');
+
+			// Initializing of the output buffer
+			ob_start();
+
+			// Generating the reponse
+			echo json_encode(
+				[
+					'status' => $status ?? false,
+					'errors' => $this->errors
+				]
+			);
+
+			// Initializing a response headers
+			header('Content-Length: ' . ob_get_length());
+
+			// Sending and deinitializing of the output buffer
+			ob_end_flush();
+			flush();
+
+			// Exit (success)
+			return null;
+		}
+
+		// Exit (fail)
+		return null;
+	}
+}

mirzaev/arming_bot/system/controllers/catalog.php

@@ -42,61 +42,11 @@ final class catalog extends core
 	 */
 	public function index(array $parameters = []): ?string
 	{
-		// Validating
+		// validating
-		if (!empty($parameters['category']) && preg_match('/[\d]+/', $parameters['category'], $matches)) $category = (int) $matches[0];
-
-		if (isset($category)) {
-			// Received and validated identifier of the category 
-
-			// Initialize of category
-			$category = category::_read('d.identifier == @identifier', parameters: ['identifier' => $category], errors: $this->errors['catalog']);
-
-			if ($category instanceof category) {
-				// Found the category
-
-				// Write to the response buffer
-				$response['category'] = ['name' => $category->name ?? null];
-
-				// Search for categories that are descendants of $category
-				$entries = entry::search(
-					document: $category,
-					amount: 50,
-					errors: $this->errors['catalog']
-				);
-				/* var_dump($entries); die; */
-
-				// Initialize buffers of entries (in singular, by parameter from ArangoDB)
-				$category = $product = [];
-
-				foreach ($entries as $entry) {
-					// Iterate over entries (descendands)
-
-					// Write entry to the buffer of entries (sort by $category and $product)
-					${$entry->_type}[] = $entry;
-				}
-
-				// Write to the buffer of global variables of view templater
-				$this->view->categories = $category ?? null;
-
-				// Write to the buffer of global variables of view templater
-				$this->view->products = $product ?? null;
-
-				/* var_dump($this->view->products); die; */
-
-				// Delete buffers
-				unset($category, $product);
-			}
-		} else if (!isset($parameters['category'])) {
-			// Not received identifie of the category
-
-			// Search for root ascendants categories
-			$this->view->categories = entry::ascendants(descendant: new category, errors: $this->errors['catalog']) ?? null;
-		}
-		// Validating
 		if (!empty($parameters['product']) && preg_match('/[\d]+/', $parameters['product'], $matches)) $product = (int) $matches[0];
 
 		if (isset($product)) {
-			// Received and validated identifier of the product
+			// received and validated identifier of the product
 
 			// Search for the product data and write to the buffer of global variables of view templater
 			$this->view->product = product::read(
@@ -116,14 +66,6 @@ final class catalog extends core
 		// Initializing buffer of filters query (AQL)
 		$_filters = 'd.deleted != true && d.hidden != true';
 
-		// Search among products in the $category
-		if (isset($this->view->products) && count($this->view->products) > 0) {
-			// Amount of rendered products is more than 0
-
-			// Write to the buffer of filters query (AQL)
-			$_filters .= ' && POSITION(["' . implode('", "', array_map(fn(_document $document): string => $document->getId(), $this->view->products)) . '"], d._id)';
-		}
-
 		// Validating
 		if (!empty($parameters['brand']) && preg_match('/[\w\s]+/u', urldecode($parameters['brand']), $matches)) $brand = $matches[0];
 
@@ -264,18 +206,6 @@ final class catalog extends core
 					]
 				]
 			);
-
-			// Search for products and write to the buffer of global variables of view templater
-			$this->view->products = product::read(
-				search: $text ?? null,
-				filter: $_filters,
-				sort: $_sort,
-				amount: 50, // @todo pagination
-				language: $this->language,
-				parameters: $_parameters,
-				return: 'DISTINCT MERGE(d, {name: d.name.@language, description: d.description.@language, compatibility: d.compatibility.@language})',
-				errors: $this->errors['catalog']
-			);
 		} else {
 			// Not received or not validated filter by brand
 
@@ -302,6 +232,62 @@ final class catalog extends core
 			);
 		}
 
+		// Validating
+		if (!empty($parameters['category']) && preg_match('/[\d]+/', $parameters['category'], $matches)) $category = (int) $matches[0];
+
+		if (isset($category)) {
+			// Received and validated identifier of the category 
+
+			// Initialize of category
+			$category = category::_read('d.identifier == @identifier', parameters: ['identifier' => $category], errors: $this->errors['catalog']);
+
+			if ($category instanceof category) {
+				// Found the category
+
+				// Write to the response buffer
+				$response['category'] = ['name' => $category->name ?? null];
+
+				// Search for categories that are descendants of $category
+				$entries = entry::search(
+					document: $category,
+					amount: 50,
+					errors: $this->errors['catalog']
+				);
+
+				// Initialize buffers of entries (in singular, by parameter from ArangoDB)
+				$category = $product = [];
+
+				foreach ($entries as $entry) {
+					// Iterate over entries (descendands)
+
+					// Write entry to the buffer of entries (sort by $category and $product)
+					${$entry->_type}[] = $entry;
+				}
+
+				// Write to the buffer of global variables of view templater
+				$this->view->categories = $category;
+
+				// Write to the buffer of global variables of view templater
+				$this->view->products = $product;
+
+				if (isset($this->view->products) && count($this->view->products) > 0) {
+					// Amount of rendered products is more than 0				
+
+					// Write to the buffer of filters query (AQL)
+					$_filters .= ' && POSITION(["' . implode('", "', array_map(fn(_document $document): string => $document->getId(), $this->view->products)) . '"], d._id)';
+				}
+
+				// Deleting buffers
+				unset($category, $product);
+			}
+		} else if (!isset($parameters['category'])) {
+			// Not received identifier of the category
+
+			// search for root ascendants categories
+			$this->view->categories = entry::ascendants(descendant: new category, errors: $this->errors['catalog']) ?? null;
+		}
+
+		// Search among products in the $category
 		if (isset($this->view->products) && count($this->view->products) > 0) {
 			// Amount of rendered products is more than 0
 
@@ -314,6 +300,18 @@ final class catalog extends core
 					errors: $this->errors['catalog']
 				)
 			];
+
+			// Search for products and write to the buffer of global variables of view templater
+			$this->view->products = product::read(
+				search: $text ?? null,
+				filter: $_filters,
+				sort: $_sort,
+				amount: 50, // @todo pagination
+				language: $this->language,
+				parameters: $_parameters,
+				return: 'DISTINCT MERGE(d, {name: d.name.@language, description: d.description.@language, compatibility: d.compatibility.@language})',
+				errors: $this->errors['catalog']
+			);
 		}
 
 		if (isset($menu)) {
@@ -347,7 +345,9 @@ final class catalog extends core
 			}
 
 			// Exit (success)
-			return $this->view->render('catalog/page.html');
+			return $this->view->render('catalog/page.html', [
+				'h2' => $this->language === language::ru ? 'Каталог' : 'Catalog' // @see https://git.mirzaev.sexy/mirzaev/huesos/issues/1
+			]);
 		} else if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 			// POST request
 

mirzaev/arming_bot/system/controllers/core.php

@@ -119,8 +119,8 @@ class core extends controller
 			$this->settings = settings::active();
 
 			// Initializing of language
-			if ($this->account?->language) $this->language = $this->account->language ?? language::en->name;
+			if ($this->account?->language) $this->language = $this->account->language ?? language::en;
-			else if ($this->settings?->language) $this->language = $this->settings->language ?? language::en->name;
+			else if ($this->settings?->language) $this->language = $this->settings->language ?? language::en;
 
 			// Initializing of preprocessor of views
 			$this->view = new templater(

mirzaev/arming_bot/system/controllers/session.php

@@ -161,6 +161,8 @@ final class session extends core
 	 * @param array $parameters Parameters of the request (POST + GET)
 	 *
 	 * @return void
+   *
+   * @todo переделать под trait buffer
 	 */
 	public function write(array $parameters = []): void
 	{

mirzaev/arming_bot/system/models/account.php

@@ -7,9 +7,10 @@ namespace mirzaev\arming_bot\models;
 // Files of the project
 use mirzaev\arming_bot\models\core,
 	mirzaev\arming_bot\models\traits\status,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
 	mirzaev\arming_bot\models\traits\buffer,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface,
+	mirzaev\arming_bot\models\traits\document as document_trait,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface,
 	mirzaev\arming_bot\models\enumerations\language;
 
 // Framework for ArangoDB
@@ -33,9 +34,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class account extends core implements arangodb_document_interface
+final class account extends core implements document_interface, collection_interface
 {
-	use status, arangodb_document_trait, buffer {
+	use status, document_trait, buffer {
 		buffer::write as write;
 	}
 
@@ -77,20 +78,20 @@ final class account extends core implements arangodb_document_interface
 					// Initialized the account
 
 					// Initializing the object
-					$account = new account;
+					$account = new static;
 
 					if (method_exists($account, '__document')) {
 						// Object can implement a document from ArangoDB
 
 						// Abstractioning of parameters
-						$result->language = language::{$result->language} ?? 'en';
+						if (isset($result->language)) $result->language = language::{$result->language};
 
 						// Writing the instance of account document from ArangoDB to the implement object
 						$account->__document($result);
 
 						// Exit (success)
 						return $account;
-					}
+					} else throw new exception('Class ' . static::class . ' does not implement a document from ArangoDB');
 				} else if ($registration) {
 					// Not found the account and registration is requested
 

mirzaev/arming_bot/system/models/cart.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace mirzaev\arming_bot\models;
+
+// Files of the project
+use mirzaev\arming_bot\models\core,
+	mirzaev\arming_bot\models\traits\document as document_trait,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
+
+/**
+ * Model of cart
+ *
+ * @package mirzaev\arming_bot\models
+ *
+ * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
+ * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
+ */
+final class cart extends core implements document_interface, collection_interface
+{
+	use document_trait;
+
+	/**
+	 * Name of the collection in ArangoDB
+	 */
+	final public const string COLLECTION = 'cart';
+}

mirzaev/arming_bot/system/models/category.php

@@ -6,8 +6,9 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface;
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
 
 // Framework for ArangoDB
 use mirzaev\arangodb\collection,
@@ -25,9 +26,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class category extends core implements arangodb_document_interface
+final class category extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB

mirzaev/arming_bot/system/models/connect.php

@@ -6,8 +6,9 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface;
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
 
 // Framework for ArangoDB
 use mirzaev\arangodb\enumerations\collection\type;
@@ -20,9 +21,9 @@ use mirzaev\arangodb\enumerations\collection\type;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class connect extends core implements arangodb_document_interface
+final class connect extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB

mirzaev/arming_bot/system/models/core.php

@@ -4,9 +4,6 @@ declare(strict_types=1);
 
 namespace mirzaev\arming_bot\models;
 
-// Files of the project
-use mirzaev\arming_bot\models\interfaces\collection as collection_interface;
-
 // Framework for PHP
 use mirzaev\minimal\model;
 
@@ -28,7 +25,7 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-class core extends model implements collection_interface
+class core extends model
 {
 	/**
 	 * Postfix for name of models files

mirzaev/arming_bot/system/models/entry.php

@@ -6,8 +6,9 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface;
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
 
 // Library for ArangoDB
 use ArangoDBClient\Document as _document;
@@ -28,9 +29,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class entry extends core implements arangodb_document_interface
+final class entry extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB

mirzaev/arming_bot/system/models/menu.php

@@ -6,9 +6,9 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface;
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
-
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
 
 /**
  * Model of menu
@@ -18,9 +18,9 @@ use mirzaev\arming_bot\models\core,
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class menu extends core implements arangodb_document_interface
+final class menu extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB

mirzaev/arming_bot/system/models/product.php

@@ -7,12 +7,17 @@ namespace mirzaev\arming_bot\models;
 // Files of the project
 use mirzaev\arming_bot\models\core,
 	mirzaev\arming_bot\models\enumerations\language,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait;
+	mirzaev\arming_bot\models\traits\document as document_trait,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface;
 
 // Framework for ArangoDB
 use mirzaev\arangodb\collection,
 	mirzaev\arangodb\document;
 
+// Library for ArangoDB
+use ArangoDBClient\Document as _document;
+
 // Built-in libraries
 use exception;
 
@@ -24,9 +29,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class product extends core
+final class product extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB
@@ -118,11 +123,11 @@ final class product extends core
 	 * @param int $page Page
 	 * @param int $amount Amount per page
 	 * @param string|null $return Return (AQL)
-	 * @param language $language Language code (en, ru...)
+	 * @param language|null $language Language code (en, ru...)
 	 * @param array $parameters Binded parameters for placeholders ['placeholder' => parameter]
 	 * @param array &$errors Registry of errors
 	 *
-	 * @return array Found products (can be empty)
+	 * @return array|static Found products or instance of the product from ArangoDB (can be empty)
 	 */
 	public static function read(
 		?string $search = null,
@@ -131,22 +136,25 @@ final class product extends core
 		int $page = 1,
 		int $amount = 100,
 		?string $return = 'DISTINCT d',
-		language $language = language::en,
+		?language $language = null,
 		array $parameters = [],
 		array &$errors = []
-	): array {
+	): array|static {
 		try {
 			if (collection::initialize(static::COLLECTION, static::TYPE, errors: $errors)) {
 				// Initialized the collection
 
+				// Initializing of the language parameter
+				if ($language instanceof language) $parameters['language'] = $language->name;
+
 				// Initializing parameters for search
 				if ($search) $parameters += [
 					'search' => $search,
-					'analyzer' => 'text_' . $language->name
+					'analyzer' => 'text_' . $language->name ?? language::en->name
 				];
 
-				// Reading products
+				// Search for products
-				$documents = collection::execute(
+				$result = collection::execute(
 					sprintf(
 						<<<'AQL'
 						FOR d IN @@collection %s
@@ -182,19 +190,31 @@ final class product extends core
 					),
 					[
 						'@collection' => empty($search) ? static::COLLECTION : static::COLLECTION . 's_search',
-						'language' => $language->name,
 						'offset' => --$page <= 0 ? $page = 0 : $page * $amount,
 						'amount' => $amount,
 					] + $parameters,
 					errors: $errors
 				);
 
-				if ($documents) {
+				if ($result instanceof _document) {
-					// Found products
+					// Found product
+
+					// Initializing the object
+					$product = new static;
+
+					if (method_exists($product, '__document')) {
+						// Object can implement a document from ArangoDB
+
+						// Writing the instance of product document from ArangoDB to the implement object
+						$product->__document($result);
 
 						// Exit (success)
-					return is_array($documents) ? $documents : [$documents];
+						return $product;
-				} else return [];
+					} else throw new exception('Class ' . static::class . ' does not implement a document from ArangoDB');
+				}
+
+				// Exit (success)
+				return $result ?? [];
 			} else throw new exception('Failed to initialize ' . static::TYPE . ' collection: ' . static::COLLECTION);
 		} catch (exception $e) {
 			// Writing to the registry of errors

mirzaev/arming_bot/system/models/session.php

@@ -7,11 +7,13 @@ namespace mirzaev\arming_bot\models;
 // Files of the project
 use mirzaev\arming_bot\models\account,
 	mirzaev\arming_bot\models\connect,
+	mirzaev\arming_bot\models\cart,
 	mirzaev\arming_bot\models\enumerations\session as verification,
 	mirzaev\arming_bot\models\traits\status,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
 	mirzaev\arming_bot\models\traits\buffer,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface,
+	mirzaev\arming_bot\models\traits\document as document_trait,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface,
 	mirzaev\arming_bot\models\enumerations\language;
 
 // Framework for ArangoDB
@@ -32,9 +34,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class session extends core implements arangodb_document_interface
+final class session extends core implements document_interface, collection_interface
 {
-	use status, arangodb_document_trait, buffer {
+	use status, document_trait, buffer {
 		buffer::write as write;
 	}
 
@@ -148,6 +150,7 @@ final class session extends core implements arangodb_document_interface
 						$result = collection::execute(
 							<<<AQL
 							FOR v IN INBOUND @session GRAPH sessions
+								FILTER IS_SAME_COLLECTION(account, v._id)
 								SORT v.created DESC
 								LIMIT 1
 								RETURN v  
@@ -159,7 +162,7 @@ final class session extends core implements arangodb_document_interface
 						);
 
 						if ($result instanceof _document) {
-							// Found active settings
+							// Found the account
 
 							// Initializing the object
 							$account = new account;
@@ -168,14 +171,14 @@ final class session extends core implements arangodb_document_interface
 								// Object can implement a document from ArangoDB
 
 								// Abstractioning of parameters
-								$result->language = language::{$result->language} ?? 'en';
+								if (isset($result->language)) $result->language = language::{$result->language};
 
 								// Writing the instance of account document from ArangoDB to the implement object
 								$account->__document($result);
 
 								// Exit (success)
 								return $account;
-							}
+							} else throw new exception('Class ' . account::class . ' does not implement a document from ArangoDB');
 						} else return null;
 					} else throw new exception('Failed to initialize ' . account::TYPE . ' collection: ' . account::COLLECTION);
 				} else throw new exception('Failed to initialize ' . connect::TYPE . ' collection: ' . connect::COLLECTION);
@@ -195,34 +198,97 @@ final class session extends core implements arangodb_document_interface
 	}
 
 	/**
-	 * Connect account to session
+	 * Search for a connected cart
 	 *
-	 * @param account $account Account
 	 * @param array &$errors Registry of errors
 	 *
-	 * @return string|null The identifier of the created edge of the "connect" collection, if created
+	 * @return cart|null An object implements the instance of the cart document from ArangoDB, if found
 	 */
-	public function connect(account $account, array &$errors = []): ?string
+	public function cart(array &$errors = []): ?cart
 	{
 		try {
 			if (collection::initialize(static::COLLECTION, static::TYPE, errors: $errors)) {
 				if (collection::initialize(connect::COLLECTION, connect::TYPE, errors: $errors)) {
-					if (collection::initialize(account::COLLECTION, account::TYPE, errors: $errors)) {
+					if (collection::initialize(cart::COLLECTION, cart::TYPE, errors: $errors)) {
-						// Collections initialized
+						// Initialized collections
 
-						// The instance of the session document from ArangoDB is initialized?
+						// Search for connected cart
-						isset($this->document) || throw new exception('The instance of the sessoin document from ArangoDB is not initialized');
+						$result = collection::execute(
-
+							<<<AQL
-						// Writing document and exit (success)
+							FOR v IN INBOUND @session GRAPH sessions
-						return document::write(
+								FILTER IS_SAME_COLLECTION(cart, v._id) && v.active == true && v.ordered != true
-							connect::COLLECTION,
+								SORT v.updated DESC, v.created DESC
+								LIMIT 1
+								RETURN v  
+							AQL,
 							[
-								'_from' => $account->getId(),
+								'session' => $this->getId()
-								'_to' => $this->document->getId()
 							],
 							errors: $errors
 						);
-					} else throw new exception('Failed to initialize ' . account::TYPE . ' collection: ' . account::COLLECTION);
+
+						if ($result instanceof _document) {
+							// Found the cart
+
+							// Initializing the object
+							$cart = new cart;
+
+							if (method_exists($cart, '__document')) {
+								// Object can implement a document from ArangoDB
+
+								// Writing the instance of cart document from ArangoDB to the implement object
+								$cart->__document($result);
+
+								// Exit (success)
+								return $cart;
+							}
+						} else {
+							// Not found the cart
+
+							// Initializing a new cart and write they into ArangoDB
+							$_id = document::write(
+								cart::COLLECTION,
+								[
+									'active' => true,
+								]
+							);
+
+							if ($result = collection::execute(
+								<<<'AQL'
+								FOR d IN @@collection
+									FILTER d._id == @_id && d.active == true
+									RETURN d
+								AQL,
+								[
+									'@collection' => cart::COLLECTION,
+									'_id' => $_id
+								],
+								errors: $errors
+							)) {
+								// Found the instance of just created new cart
+
+								// Initializing the object
+								$cart = new cart;
+
+								if (method_exists($cart, '__document')) {
+									// Object can implement a document from ArangoDB
+
+									// Writing the instance of cart document from ArangoDB to the implement object
+									$cart->__document($result);
+
+									// Connecting the cart to the session
+									$connected = $this->connect($cart, $errors);
+
+									if ($connected) {
+										// The cart has been connected to the session
+
+										// Exit (success)
+										return $cart;
+									} else throw new exception('Failed to connect the cart to the session');
+								} else throw new exception('Class ' . cart::class . ' does not implement a document from ArangoDB');
+							} else throw new exception('Failed to create or find just created session');
+						}
+					} else throw new exception('Failed to initialize ' . cart::TYPE . ' collection: ' . cart::COLLECTION);
 				} else throw new exception('Failed to initialize ' . connect::TYPE . ' collection: ' . connect::COLLECTION);
 			} else throw new exception('Failed to initialize ' . static::TYPE . ' collection: ' . static::COLLECTION);
 		} catch (exception $e) {

mirzaev/arming_bot/system/models/settings.php

@@ -6,15 +6,16 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface,
 	mirzaev\arming_bot\models\enumerations\language;
 
 // Framework for ArangoDB
 use mirzaev\arangodb\collection,
 	mirzaev\arangodb\document;
 
-// Library для ArangoDB
+// Library for ArangoDB
 use ArangoDBClient\Document as _document;
 
 // Built-in libraries
@@ -28,9 +29,9 @@ use exception;
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class settings extends core implements arangodb_document_interface
+final class settings extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB
@@ -76,14 +77,14 @@ final class settings extends core implements arangodb_document_interface
 						// Object can implement a document from ArangoDB
 
 						// Abstractioning of parameters
-						$result->language = language::{$result->language} ?? 'en';
+						if (isset($result->language)) $result->language = language::{$result->language};
 
 						// Writing the instance of settings document from ArangoDB to the implement object
 						$settings->__document($result);
 
 						// Exit (success)
 						return $settings;
-					}
+					} else throw new exception('Class ' . static::class . ' does not implement a document from ArangoDB');
 				} else if ($create) {
 					// Not found active settings and requested their creating
 

mirzaev/arming_bot/system/models/suspension.php

@@ -6,9 +6,10 @@ namespace mirzaev\arming_bot\models;
 
 // Files of the project
 use mirzaev\arming_bot\models\core,
-	mirzaev\arming_bot\models\enumerations\language,
+	mirzaev\arming_bot\models\traits\document as document_trait,
-	mirzaev\arming_bot\models\traits\document as arangodb_document_trait,
+	mirzaev\arming_bot\models\interfaces\document as document_interface,
-	mirzaev\arming_bot\models\interfaces\document as arangodb_document_interface;
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface,
+	mirzaev\arming_bot\models\enumerations\language;
 
 // Framework for ArangoDB
 use mirzaev\arangodb\collection,
@@ -29,9 +30,9 @@ use exception,
  * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
  * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
  */
-final class suspension extends core implements arangodb_document_interface
+final class suspension extends core implements document_interface, collection_interface
 {
-	use arangodb_document_trait;
+	use document_trait;
 
 	/**
 	 * Name of the collection in ArangoDB
@@ -81,7 +82,7 @@ final class suspension extends core implements arangodb_document_interface
 
 						// Exit (success)
 						return $suspension;
-					}
+					} else throw new exception('Class ' . static::class . ' does not implement a document from ArangoDB');
 				} else return null;
 			} else throw new exception('Failed to initialize ' . static::TYPE . ' collection: ' . static::COLLECTION);
 		} catch (exception $e) {

mirzaev/arming_bot/system/models/traits/document.php

@@ -5,13 +5,17 @@ declare(strict_types=1);
 namespace mirzaev\arming_bot\models\traits;
 
 // Files of the project
-use mirzaev\arming_bot\models\core;
+use mirzaev\arming_bot\models\interfaces\document as document_interface,
+	mirzaev\arming_bot\models\interfaces\collection as collection_interface,
+	mirzaev\arming_bot\models\connect;
 
 // Library для ArangoDB
 use ArangoDBClient\Document as _document;
 
 // Framework for ArangoDB
-use mirzaev\arangodb\connection as arangodb;
+use mirzaev\arangodb\connection as arangodb,
+	mirzaev\arangodb\document as framework_document,
+	mirzaev\arangodb\collection;
 
 // Built-in libraries
 use exception;
@@ -19,6 +23,8 @@ use exception;
 /**
  * Trait for implementing a document instance from ArangoDB
  *
+ * @uses document_interface
+ *
  * @var protected readonly _document|null $document An instance of the ArangoDB document
  *
  * @package mirzaev\arming_bot\models\traits
@@ -71,6 +77,52 @@ trait document
 		return $this->document ?? null;
 	}
 
+	/**
+	 * Connect
+	 *
+	 * @param collecton_interface $document Document
+	 * @param array &$errors Registry of errors
+	 *
+	 * @return string|null The identifier of the created edge of the "connect" collection, if created
+	 */
+	public function connect(collection_interface $document, array &$errors = []): ?string
+	{
+		try {
+			if (collection::initialize(static::COLLECTION, static::TYPE, errors: $errors)) {
+				if (collection::initialize(connect::COLLECTION, connect::TYPE, errors: $errors)) {
+					if (collection::initialize($document::COLLECTION, $document::TYPE, errors: $errors)) {
+						// Initialized collections 
+
+						if ($this->document instanceof _document) {
+							// Initialized instance of the document from ArangoDB
+
+							// Writing document and exit (success)
+							return framework_document::write(
+								connect::COLLECTION,
+								[
+									'_from' => $document->getId(),
+									'_to' => $this->document->getId()
+								],
+								errors: $errors
+							);
+						} else  throw new exception('The instance of the document from ArangoDB is not initialized');
+					} else throw new exception('Failed to initialize ' . $document::TYPE . ' collection: ' . $document::COLLECTION);
+				} else throw new exception('Failed to initialize ' . connect::TYPE . ' collection: ' . connect::COLLECTION);
+			} else throw new exception('Failed to initialize ' . static::TYPE . ' collection: ' . static::COLLECTION);
+		} catch (exception $e) {
+			// Writing to the registry of errors
+			$errors[] = [
+				'text' => $e->getMessage(),
+				'file' => $e->getFile(),
+				'line' => $e->getLine(),
+				'stack' => $e->getTrace()
+			];
+		}
+
+		// Exit (fail)
+		return null;
+	}
+
 	/**
 	 * Write
 	 *

mirzaev/arming_bot/system/public/index.php

@@ -40,6 +40,8 @@ $router = new router;
 $router
 	->write('/', 'catalog', 'index', 'GET')
 	->write('/', 'catalog', 'index', 'POST')
+	->write('/cart', 'cart', 'index', 'GET')
+	->write('/cart/write', 'cart', 'write', 'POST')
 	->write('/account/write', 'account', 'write', 'POST')
 	->write('/session/write', 'session', 'write', 'POST')
 	->write('/session/connect/telegram', 'session', 'telegram', 'POST')

mirzaev/arming_bot/system/public/js/cart.js

@@ -35,9 +35,90 @@ import("/js/core.js").then(() =>
 				 */
 				core.cart = class cart {
 					/**
-					 * Products in cart ["product/148181", "product/148181", "product/148181"...]
+					 * Write or delete product from the cart  (interface)
+					 *
+					 * @param {HTMLElement} button Button of the product <a>
+					 * @param {bool} force Ignore the damper? (false)
+					 *
+					 * @return {bool} True if an error occurs to continue the event execution
 					 */
-					static cart = [];
+					static toggle(button, force = false) {
+						// Blocking the button
+						button.setAttribute("disabled", "true");
+
+						// Execute under damper
+						this.toggle_damper(button, force);
+
+						// Exit (success)
+						return false;
+					}
+
+					/**
+					 * Write or delete product from the cart (damper)
+					 *
+					 * @param {HTMLElement} button Button of the product <a>
+					 * @param {bool} force Ignore the damper? (false)
+					 *
+					 * @return {void}
+					 */
+					static toggle_damper = core.damper(
+						(...variables) => this.toggle_system(...variables),
+						800,
+						1,
+					);
+
+					/**
+					 * Write or delete product from the cart (system)
+					 *
+					 * @param {HTMLElement} button Button of the product <a>
+					 *
+					 * @return {Promise} Request to the server
+					 *
+					 * @todo add unblocking button by timer + everywhere
+					 */
+					static async toggle_system(button) {
+						if (button instanceof HTMLElement) {
+							// Validated
+
+							// Initializing of identifier of the product
+							const identifier = button.getAttribute("data-product-identifier");
+
+							if (typeof identifier === "string" && identifier.length > 0) {
+								// Validated identifier
+
+								return await core.request(
+									"/cart/write",
+									`product=${identifier}`,
+								)
+									.then((json) => {
+										if (
+											json.errors !== null &&
+											typeof json.errors === "object" &&
+											json.errors.length > 0
+										) {
+											// Fail (received errors)
+										} else {
+											// Success (not received errors)
+
+											// Unblocking the button
+											button.removeAttribute("disabled");
+
+											if (json.status) {
+												// The product in the cart
+
+												// Writing style of added to the cart button
+												button.classList.add("cart");
+											} else {
+												// The product is not in the cart
+
+												// Deleting style of added to the cart button
+												button.classList.remove("cart");
+											}
+										}
+									});
+							}
+						}
+					}
 				};
 			}
 		}

mirzaev/arming_bot/system/public/js/catalog.js

@@ -797,7 +797,7 @@ import("/js/core.js").then(() =>
 								 *
 								 * @return {Promise} Request to the server
 								 */
-								static product_system(identifier) {
+								static async product_system(identifier) {
 									if (typeof identifier === "string") {
 										// Validated identifier
 
@@ -807,7 +807,7 @@ import("/js/core.js").then(() =>
 										// Write parameter to the buffer of URN parameters
 										parameters.set("product", identifier);
 
-										return core.request("?" + parameters).then((json) => {
+										return await core.request("?" + parameters).then((json) => {
 											if (
 												json.errors !== null &&
 												typeof json.errors === "object" &&

mirzaev/arming_bot/system/public/themes/default/css/catalog.css

@@ -137,6 +137,10 @@ main>section#products>div.column>article.product>a>p.title {
 	background-color: var(--tg-theme-secondary-bg-color);
 }
 
+main>section#products>div.column>article.product>button.cart {
+	filter: hue-rotate(120deg);
+}
+
 main>section#products>div.column>article.product>button:last-of-type {
 	z-index: 100;
 	height: 33px;

mirzaev/arming_bot/system/views/themes/default/catalog/elements/products.html

@@ -1,13 +1,17 @@
 {% macro card(product) %}
-{% set title = product.name[language] ~ ' ' ~ product.brand[language] ~ format_dimensions(product.dimensions.x, product.dimensions.y, product.dimensions.z, ' ') ~ ' ' ~ product.weight ~ 'г' %}
+{% set title = product.name[language] ~ ' ' ~ product.brand[language] ~ format_dimensions(product.dimensions.x,
+product.dimensions.y, product.dimensions.z, ' ') ~ ' ' ~ product.weight ~ 'г' %}
 <article id="{{ product.getId() }}" class="product unselectable">
-	<a data-product-identifier="{{ product.identifier }}" href="?product={{ product.identifier }}" onclick="return core.catalog.product(this);" onkeydown="event.keyCode === 13 && core.catalog.product(this)" tabindex="10">
+	<a data-product-identifier="{{ product.identifier }}" href="?product={{ product.identifier }}"
+		onclick="return core.catalog.product(this);" onkeydown="event.keyCode === 13 && core.catalog.product(this)"
+		tabindex="10">
 		<img src="{{ product.images.0.storage }}" alt="{{ product.name[language] }}" ondrugstart="return false;">
 		<p class="title" title="{{ product.name[language] }}">
 			{{ title | length > 45 ? title | slice(0, 45) ~ '...' : title }}
 		</p>
 	</a>
-	<button title="Добавить в корзину" onclick="catalog.cart.add(this)" tabindex="15">
+	<button title="Добавить в корзину" onclick="core.cart.toggle(this)" data-product-identifier="{{ product.identifier }}"
+		data-product-cost="{{ product.cost }}" tabindex="15">
 		{{ product.cost }}р
 	</button>
 </article>