<?php
/**
 * Affilivice Theme
 * Copyright (C) 2016-2017, Affilivice Theme - support@affilicioustheme.de
 *
 * Affilivice Theme 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
 * any later version.
 *
 * Affilivice Theme 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 Affilivice Theme. If not, see <http://www.gnu.org/licenses/>.
 */
if(!defined('ABSPATH')) {
    exit('Not allowed to access pages directly.');
}

define('AFFILICIOUS_THEME_ROOT_PATH', get_template_directory());
define('AFFILICIOUS_THEME_ROOT_URL', get_template_directory_uri());

if(!class_exists('Affc_Affilivice_Theme')) {

    final class Affc_Affilivice_Theme
    {
        const NAME = 'affilivice';
        const VERSION = '0.7.2';
        const MIN_PHP_VERSION = '5.6';

        /**
         * Stores the singleton instance.
         *
         * @var \Affc_Affilivice_Theme
         */
        private static $instance;

        /**
         * A reference to the main plugin.
         *
         * @see https://github.com/affilicious-theme/affilicious
         * @var Affilicious_Plugin
         */
        private $affilicious;

        /**
         * Register all services and parameters for the pimple dependency injection.
         * This container is just a reference to the container of the _affilicious plugin.
         *
         * @see http://pimple.sensiolabs.org
         * @var Pimple\Container
         */
        private $container;

        /**
         * Get the instance of the affilicious theme.
         *
         * @since 0.3
         * @return Affc_Affilivice_Theme
         */
        public static function get_instance()
        {
            if (self::$instance === null) {
                self::$instance = new \Affc_Affilivice_Theme();
            }

            return self::$instance;
        }

        /**
         * Get the root path of the affilicious theme.
         *
         * @since 0.2
         * @return string
         */
        public static function get_root_path()
        {
            return AFFILICIOUS_THEME_ROOT_PATH;
        }

        /**
         * Get the root url of the affilicious theme.
         *
         * @since 0.2
         * @return string
         */
        public static function get_root_url()
        {
            return AFFILICIOUS_THEME_ROOT_URL;
        }

        /**
         * Prepare the plugin with for usage with Wordpress and namespaces.
         *
         * @since 0.2
         */
        public function __construct()
        {
            // Gracefully fail the theme, if the PHP Version is not sufficient.
            if(version_compare(phpversion(), self::MIN_PHP_VERSION, '<')) {
                return;
            }

            // Make namespaces and autoloading available
            if (file_exists(__DIR__ . '/vendor/autoload.php')) {
                require(__DIR__ . '/vendor/autoload.php');
            }

            spl_autoload_register(array($this, 'autoload'));

            // Load the affilicious plugin and the dependency container on existence
            if(class_exists('\Affilicious_Plugin')) {
                $this->affilicious = \Affilicious_Plugin::get_instance();
                $this->container   = $this->affilicious->get_container();
            } else {
                $this->container = new Pimple\Container();
            }
        }

        /**
         * Make namespaces compatible with the source code of this theme.
         *
         * @since 0.2
         * @param string $class
         */
        public function autoload($class)
        {
            $prefix = 'Affilivice\\';
            if (stripos($class, $prefix) === false) {
                return;
            }

            $file_path = str_ireplace('Affilivice\\', '', $class) . '.php';
            $file_path = strtolower($file_path);
            $file_path = str_replace('_', '-', $file_path);
            $file_path = __DIR__ . '/src/' . $file_path;
            $file_path = str_replace('\\', DIRECTORY_SEPARATOR, $file_path);

            /** @noinspection PhpIncludeInspection */
            include_once($file_path);
        }

        /**
         * Run all of the theme code.
         *
         * @since 0.2
         */
        public function run()
        {
            // Hook the theme activation and deactivation
            add_action('after_switch_theme', array($this, 'activate'));
            add_action('switch_theme', array($this, 'deactivate'));

            // Gracefully fail the theme, if the PHP Version is not sufficient.
            if(version_compare(phpversion(), self::MIN_PHP_VERSION, '<')) {
                return;
            }

            // Hook the theme support and textdomain
            add_action('after_setup_theme', array($this, 'load_support'));
            add_action('after_setup_theme', array($this, 'load_textdomain'));

            $this->load_includes();
            $this->load_services();
            $this->load_content_width();
            $this->register_public_hooks();
            $this->register_admin_hooks();
        }

        /**
         * The code that runs during theme activation.
         *
         * @since 0.2
         */
        public function activate()
        {
            // Check the PHP version requirement
            if(!version_compare(phpversion(), self::MIN_PHP_VERSION, '>=')) {
                switch_theme('');

                $this->load_textdomain();
                wp_die(sprintf(
                    __('Affilivice Theme requires at least the PHP version %s to reveal the full potential. Please switch the PHP version in your hosting provider.', 'affilivice'),
                    self::MIN_PHP_VERSION
                ));
            }

            // Apply the backup styles
            if(isset($this->container['affilivice.design.service.customizer_mods_backup'])) {
                $customizer_mods_backup_service = $this->container['affilivice.design.service.customizer_mods_backup'];
                if($customizer_mods_backup_service !== null) {
                    $customizer_mods_backup_service->activate();
                }
            }
        }

        /**
         * The code that runs during theme deactivation.
         *
         * @since 0.2
         */
        public function deactivate()
        {
        }

        /**
         * Load the supported theme options.
         *
         * @since 0.2
         */
        public function load_support()
        {
            add_theme_support('post-thumbnails');
            add_theme_support('title-tag');
            add_theme_support('automatic-feed-links');
        }

        /**
         * Load the static content width.
         *
         * @since 0.8
         */
        public function load_content_width()
        {
            global $content_width;

            if (!isset($content_width)) {
                $content_width = 900;
            }
        }

        /**
         * Load the theme textdomain for internationalization.
         *
         * @since 0.2
         */
        public function load_textdomain()
        {
            $dir = self::get_root_path() . '/languages';
            load_theme_textdomain(self::NAME, $dir);
        }

        /**
         * Load the includes.
         *
         * @since 0.3.4
         */
        public function load_includes()
        {
            require_once('include/customizer-library/customizer-library.php');
        }

        /**
         * Register the services for the dependency injection.
         *
         * @since 0.3.4
         */
        public function load_services()
        {
            $this->container['affilivice.design.setup.assets'] = function () {
                return new \Affilivice\Design\Setup\Assets_Setup();
            };

            $this->container['affilivice.design.setup.content'] = function () {
                return new \Affilivice\Design\Setup\Content_Setup();
            };

            $this->container['affilivice.design.setup.comment'] = function () {
                return new \Affilivice\Design\Setup\Comment_Setup();
            };

            $this->container['affilivice.design.setup.menu'] = function () {
                return new \Affilivice\Design\Setup\Menu_Setup();
            };

            $this->container['affilivice.design.setup.sidebar'] = function () {
                return new \Affilivice\Design\Setup\Sidebar_Setup();
            };

            $this->container['affilivice.design.setup.customizer'] = function () {
                return new \Affilivice\Design\Setup\Customizer_Setup();
            };

            $this->container['affilivice.design.setup.widget'] = function () {
                return new \Affilivice\Design\Setup\Widget_Setup();
            };

            $this->container['affilivice.design.service.customizer_mods_backup'] = function() {
                return new \Affilivice\Design\Service\Customizer_Mods_Backup_Service();
            };

            $this->container['affilivice.design.migration.options'] = function() {
                return new \Affilivice\Design\Migration\Options_Migration();
            };

            $this->container['affilivice.design.migration.mods_backup'] = function($c) {
                return new \Affilivice\Design\Migration\Mods_Backup_Migration(
                    $c['affilivice.design.service.customizer_mods_backup']
                );
            };

            $this->container['affilivice.design.filter.pagination'] = function() {
                return new \Affilivice\Design\Filter\Pagination_Filter();
            };

            $this->container['affilivice.design.filter.archive_title'] = function() {
                return new \Affilivice\Design\Filter\Archive_Title_Filter();
            };
        }

        /**
         * Register all of the hooks related to the public-facing functionality.
         *
         * @since 0.2
         */
        public function register_public_hooks()
        {
            // Hook the public styles and scripts
            $asset_setup = $this->container['affilivice.design.setup.assets'];
            add_action('wp_enqueue_scripts', array($asset_setup, 'add_public_styles'));
            add_action('wp_enqueue_scripts', array($asset_setup, 'add_public_scripts'));

            // Hook the sidebars
            $sidebar_setup = $this->container['affilivice.design.setup.sidebar'];
            add_action('widgets_init', array($sidebar_setup, 'init'));
            add_filter('dynamic_sidebar_params', array($sidebar_setup, 'modify_sidebar_params'));

            // Hook the widgets
            $widget_setup = $this->container['affilivice.design.setup.widget'];
            add_filter('widgets_init', array($widget_setup, 'register_widgets'));
            add_filter('widget_tag_cloud_args', array($widget_setup, 'modifiy_tag_cloud'));

            // Hook the menus
            $menu_setup = $this->container['affilivice.design.setup.menu'];
            add_action('after_setup_theme', array($menu_setup, 'init'));

            // Hook the content
            $content_setup = $this->container['affilivice.design.setup.content'];
            add_filter('the_content', array($content_setup, 'set_table_class'));
            add_filter('excerpt_length', array($content_setup, 'set_excerpt_length'));
            add_filter('post_thumbnail_html', array($content_setup, 'remove_img_dimensions'));
            add_filter('the_content', array($content_setup, 'remove_img_dimensions'));
            add_filter('get_avatar', array($content_setup, 'remove_img_dimensions'));
            add_filter('the_content', array($content_setup, 'wrap_fluid_media'));

            // Hook the comments
            $comment_setup = $this->container['affilivice.design.setup.comment'];
            add_filter('comment_form_default_fields', array($comment_setup, 'set_form_default_fields'));
            add_filter('comment_form_defaults', array($comment_setup, 'set_form_defaults'));
            add_filter('after_setup_theme', array($comment_setup, 'set_theme_support'));

            // Hook the theme customizer
            $customizer_setup = $this->container['affilivice.design.setup.customizer'];
            add_action('init', array($customizer_setup, 'init'), 100);
            add_action('init', array($customizer_setup, 'render'), 102);
            add_action('wp_enqueue_scripts', array($customizer_setup, 'enqueue_scripts'));
            add_action('wp_head', array($customizer_setup, 'head'));

            // Hook the options migration
            $options_migration = $this->container['affilivice.design.migration.options'];
            add_action('init', array($options_migration, 'migrate'), 1);

            // Hook the mods backup migration
            $mods_backup_migration = $this->container['affilivice.design.migration.mods_backup'];
            add_action('init', array($mods_backup_migration, 'migrate'), 1);

            // Hook the pagination filter
            $pagination_filter = $this->container['affilivice.design.filter.pagination'];
            add_action('navigation_markup_template', array($pagination_filter, 'filter'));

            // Hook the archive title filter
            $archive_title_filter = $this->container['affilivice.design.filter.archive_title'];
            add_action('get_the_archive_title', array($archive_title_filter, 'filter'));
        }

        /**
         * Register all of the hooks related to the admin area functionality.
         *
         * @since 0.2
         */
        public function register_admin_hooks()
        {
            // Hook the mods backup
            $customizer_mods_backup_service = $this->container['affilivice.design.service.customizer_mods_backup'];
            add_action('customize_save_after', array($customizer_mods_backup_service, 'store_backup'), 99);
            add_action('added_option', array($customizer_mods_backup_service, 'apply_backup'), 999, 1);
            add_action('updated_option', array($customizer_mods_backup_service, 'apply_backup'), 999, 1);

            // Hook the admin and theme customizer styles and scripts
            $asset_setup = $this->container['affilivice.design.setup.assets'];
            add_action('customize_preview_init', array($asset_setup, 'add_customizer_scripts'));
        }

        /**
         * Get the dependency injection container.
         *
         * @since 0.3.4
         * @return Pimple\Container
         */
        public function get_container()
        {
            return $this->container;
        }
    }

    $affc_affilivice_theme = \Affc_Affilivice_Theme::get_instance();
    $affc_affilivice_theme->run();
}