diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000000000000000000000000000000000000..5a07474da4b4e84d35dc54d9ba7e7290bbceea53
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,32 @@
+{
+ "name": "wpdesk/wp-builder",
+ "authors": [
+ {
+ "name": "Krzysiek",
+ "email": "krzysiek@wpdesk.pl"
+ }
+ ],
+ "require": {
+ "php": ">=5.5"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "<7",
+ "wp-coding-standards/wpcs": "^0.14.1",
+ "squizlabs/php_codesniffer": "^3.0.2",
+ "mockery/mockery": "*",
+ "10up/wp_mock": "*",
+ "wimg/php-compatibility": "^8"
+ },
+ "autoload": {
+ "psr-4": {"WPDesk\\PluginBuilder\\": "src/"}
+ },
+ "autoload-dev": {
+ },
+ "scripts": {
+ "phpcs": "phpcs",
+ "phpunit-unit": "phpunit --configuration phpunit-unit.xml --coverage-text --colors=never",
+ "phpunit-unit-fast": "phpunit --configuration phpunit-unit.xml --no-coverage",
+ "phpunit-integration": "phpunit --configuration phpunit-integration.xml --coverage-text --colors=never",
+ "phpunit-integration-fast": "phpunit --configuration phpunit-integration.xml --no-coverage"
+ }
+}
diff --git a/src/Builder/AbstractBuilder.php b/src/Builder/AbstractBuilder.php
new file mode 100644
index 0000000000000000000000000000000000000000..951e9a06102dc41f2f5fafb161f241cb65e5fb25
--- /dev/null
+++ b/src/Builder/AbstractBuilder.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace WPDesk\PluginBuilder\Builder;
+
+use WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+
+class AbstractBuilder
+{
+ const FILTER_PLUGIN_CLASS = 'wpdesk_plugin_class';
+ const HOOK_BEFORE_PLUGIN_INIT = 'wpdesk_before_plugin_init';
+ const HOOK_AFTER_PLUGIN_INIT = 'wpdesk_before_afterinit';
+
+ protected static $instances = [];
+
+ /**
+ * @param string $class
+ * @param AbstractPlugin $object
+ */
+ protected function addToStorage($class, $object) {
+ if (isset(self::$instances[$class])) {
+ throw new Exception\ClassAlreadyExists("Class {$class} already exists");
+ }
+ self::$instances[$class] = $object;
+ }
+
+ /**
+ * @param string $class
+ *
+ * @return AbstractPlugin
+ */
+ protected function getFromStorage($class) {
+ if (isset(self::$instances[$class])) {
+ return self::$instances[$class];
+ } else {
+ throw new Exception\ClassNotExists("Class {$class} not exists in storage");
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/Builder/Exception/ClassAlreadyExists.php b/src/Builder/Exception/ClassAlreadyExists.php
new file mode 100644
index 0000000000000000000000000000000000000000..2b69111bc281e6f2882ea2a0f1d2570d3867f500
--- /dev/null
+++ b/src/Builder/Exception/ClassAlreadyExists.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace WPDesk\PluginBuilder\Builder\Exception;
+
+class ClassAlreadyExists extends \RuntimeException
+{
+
+}
\ No newline at end of file
diff --git a/src/Builder/Exception/ClassNotExists.php b/src/Builder/Exception/ClassNotExists.php
new file mode 100644
index 0000000000000000000000000000000000000000..bbcfe32efed7b4946626d581d5844f25e6bfae20
--- /dev/null
+++ b/src/Builder/Exception/ClassNotExists.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace WPDesk\PluginBuilder\Builder\Exception;
+
+class ClassNotExists extends \RuntimeException
+{
+
+}
\ No newline at end of file
diff --git a/src/Builder/InfoBuilder.php b/src/Builder/InfoBuilder.php
new file mode 100644
index 0000000000000000000000000000000000000000..be03ad7646ec7b1a0462c2b3c88fa7c5044c66c8
--- /dev/null
+++ b/src/Builder/InfoBuilder.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace WPDesk\PluginBuilder\Builder;
+
+use WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+
+class InfoBuilder extends AbstractBuilder
+{
+ const FILTER_PLUGIN_CLASS = 'wpdesk_plugin_class';
+ const HOOK_BEFORE_PLUGIN_INIT = 'wpdesk_before_plugin_init';
+ const HOOK_AFTER_PLUGIN_INIT = 'wpdesk_before_afterinit';
+
+ /**
+ * Builds instance of plugin
+ *
+ * @return AbstractPlugin
+ */
+ public function build_from_info(\WPDesk_Plugin_Info $info)
+ {
+ $class_name = apply_filters( self::FILTER_PLUGIN_CLASS, $info->get_class_name() );
+
+ /** @var AbstractPlugin $plugin */
+ $plugin = new $class_name($info);
+ $this->addToStorage($info->get_class_name(), $plugin);
+
+ do_action(self::HOOK_BEFORE_PLUGIN_INIT, $plugin);
+ $plugin->init();
+ do_action(self::HOOK_AFTER_PLUGIN_INIT, $plugin);
+
+ return $plugin;
+ }
+
+ /**
+ * @param string $class
+ *
+ * @return AbstractPlugin
+ */
+ public function get_plugin_instance($class) {
+ return $this->getFromStorage($class);
+ }
+}
\ No newline at end of file
diff --git a/src/Plugin/AbstractPlugin.php b/src/Plugin/AbstractPlugin.php
new file mode 100644
index 0000000000000000000000000000000000000000..1c10b1c933097346c9f73acc8a07ed799877d429
--- /dev/null
+++ b/src/Plugin/AbstractPlugin.php
@@ -0,0 +1,152 @@
+<?php
+
+namespace WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Base plugin class for WP Desk plugins
+ *
+ * @author Grzegorz
+ *
+ */
+abstract class AbstractPlugin {
+
+ /** @var \WPDesk_PluginInfo */
+ protected $plugin_info;
+
+ /** @var string */
+ protected $plugin_namespace;
+
+ /** @var string */
+ protected $plugin_url;
+
+ /** @var string */
+ protected $docs_url;
+
+ /** @var string */
+ protected $settings_url;
+
+ /**
+ * AbstractPlugin constructor.
+ *
+ * @param \WPDesk_Plugin_Info $plugin_info
+ */
+ public function __construct( $plugin_info ) {
+ $this->plugin_info = $plugin_info;
+ $this->plugin_namespace = strtolower($plugin_info->get_class_name()); // ?? NOT SURE
+ }
+
+ public function init() {
+ $this->init_base_variables();
+ $this->load_plugin_text_domain();
+ $this->hooks();
+ }
+
+ /**
+ * @return $this
+ */
+ public function get_plugin() {
+ return $this;
+ }
+
+ /**
+ * @return string
+ */
+ public function get_text_domain() {
+ return $this->get_namespace();
+ }
+
+ /**
+ * @return void
+ */
+ public function load_plugin_text_domain() {
+ $plugin_translation = load_plugin_textdomain( $this->get_text_domain(), false, $this->get_namespace() . '/lang/' );
+ }
+
+ public function init_base_variables( ) {
+ $this->plugin_url = plugin_dir_url( $this->plugin_info->get_plugin_dir() );
+ }
+
+ /**
+ * @return void
+ */
+ protected function hooks() {
+ add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
+
+ add_action( 'wp_enqueue_scripts', array( $this, 'wp_enqueue_scripts' ) );
+
+ add_action( 'plugins_loaded', array( $this, 'load_plugin_text_domain' ) );
+ add_filter( 'plugin_action_links_' . plugin_basename( $this->get_plugin_file_path() ), array(
+ $this,
+ 'links_filter'
+ ) );
+
+ }
+
+ /**
+ *
+ * @return string
+ */
+ public function get_plugin_url() {
+ return esc_url( trailingslashit( $this->plugin_url ) );
+ }
+
+ public function get_plugin_assets_url() {
+ return esc_url( trailingslashit( $this->get_plugin_url() . 'assets' ) );
+ }
+
+ /**
+ * @return string
+ */
+ public function get_plugin_file_path() {
+ return $this->plugin_info->get_plugin_dir();
+ }
+
+ /**
+ * @return string
+ */
+ public function get_namespace() {
+ return $this->plugin_namespace;
+ }
+
+ public function admin_enqueue_scripts( ) {
+ }
+
+ public function wp_enqueue_scripts() {
+ }
+
+ /**
+ * action_links function.
+ *
+ * @access public
+ *
+ * @param mixed $links
+ *
+ * @return array
+ */
+ public function links_filter( $links ) {
+ $support_link = get_locale() === 'pl_PL' ? 'https://www.wpdesk.pl/support/' : 'https://www.wpdesk.net/support';
+
+ $plugin_links = array(
+ '<a href="' . $support_link . '">' . __( 'Support', 'wpdesk-plugin' ) . '</a>',
+ );
+ $links = array_merge( $plugin_links, $links );
+
+ if ( $this->docs_url ) {
+ $plugin_links = array(
+ '<a href="' . $this->docs_url . '">' . __( 'Docs', 'wpdesk-plugin' ) . '</a>',
+ );
+ $links = array_merge( $plugin_links, $links );
+ }
+
+ if ( $this->settings_url ) {
+ $plugin_links = array(
+ '<a href="' . $this->settings_url . '">' . __( 'Settings', 'wpdesk-plugin' ) . '</a>',
+ );
+ $links = array_merge( $plugin_links, $links );
+ }
+
+ return $links;
+ }
+
+}
+