<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class GDBTOCore {
	private $wp_version;
	private $plugin_path;
	private $plugin_url;

	public $l;
	public $o;

	public $is_search = false;

	public $mod = array(
		'a' => null,
		'i' => null,
		's' => null,
		'q' => null,
		't' => null,
		'v' => null,
		'w' => null,
	);

	public function __construct() {
		$this->_init();

		add_action( 'bbp_init', array( $this, 'load_modules' ), 1 );
		add_action( 'bbp_init', array( $this, 'init_modules' ), 2 );
		add_action( 'bbp_init', array( $this, 'load_plugin' ), 3 );

		add_action( 'bbp_init', array( $this, 'hook_modules' ) );
	}

	public static function instance() {
		static $instance = false;

		if ( $instance === false ) {
			$instance = new GDBTOCore();
		}

		return $instance;
	}

	private function _init() {
		global $wp_version;
		$this->wp_version = substr( str_replace( '.', '', $wp_version ), 0, 2 );
		define( 'GDBBPRESSTOOLS_WPV', intval( $this->wp_version ) );

		$gdd = new GDBTODefaults();

		$this->o = get_option( 'gd-bbpress-tools' );
		if ( ! is_array( $this->o ) ) {
			$this->o = $gdd->default_options;
			update_option( 'gd-bbpress-tools', $this->o );
		}

		if ( ! isset( $this->o['build'] ) || $this->o['build'] != $gdd->default_options['build'] ) {
			$this->o = $this->_upgrade( $this->o, $gdd->default_options );

			$this->o['version']  = $gdd->default_options['version'];
			$this->o['date']     = $gdd->default_options['date'];
			$this->o['status']   = $gdd->default_options['status'];
			$this->o['build']    = $gdd->default_options['build'];
			$this->o['revision'] = $gdd->default_options['revision'];
			$this->o['edition']  = $gdd->default_options['edition'];

			update_option( 'gd-bbpress-tools', $this->o );
		}

		define( 'GDBBPRESSTOOLS_INSTALLED', $gdd->default_options['version'] . ' Free' );
		define( 'GDBBPRESSTOOLS_VERSION', $gdd->default_options['version'] . '_b' . ( $gdd->default_options['build'] . '_free' ) );

		$this->plugin_path = dirname( __FILE__, 2 ) . '/';
		$this->plugin_url  = plugins_url( '/gd-bbpress-tools/' );

		define( 'GDBBPRESSTOOLS_URL', $this->plugin_url );
		define( 'GDBBPRESSTOOLS_PATH', $this->plugin_path );
	}

	private function _upgrade( $old, $new ) {
		foreach ( $new as $key => $value ) {
			if ( ! isset( $old[ $key ] ) ) {
				$old[ $key ] = $value;
			}
		}

		$unset = array();
		foreach ( $old as $key => $value ) {
			if ( ! isset( $new[ $key ] ) ) {
				$unset[] = $key;
			}
		}

		foreach ( $unset as $key ) {
			unset( $old[ $key ] );
		}

		return $old;
	}

	public function load_modules() {
		if ( ! function_exists( 'bbp_version' ) ) {
			return;
		}

		if ( function_exists( 'bbp_is_search' ) ) {
			$this->is_search = bbp_is_search();
		}

		if ( is_admin() ) {
			if ( $this->o['admin_disable_active'] == 1 && ! d4p_bbp_is_role( 'admin_disable' ) ) {
				require_once( GDBBPRESSTOOLS_PATH . 'code/mods/access.php' );

				$this->mod['a'] = new GDBTOModAccess();
			}
		} else {
			require_once( GDBBPRESSTOOLS_PATH . 'code/mods/tweaks.php' );

			$this->mod['w'] = new GDBTOModTweaks();

			if ( $this->o['quote_active'] == 1 && d4p_bbp_is_role( 'quote' ) && ! $this->is_search ) {
				require_once( GDBBPRESSTOOLS_PATH . 'code/mods/quote.php' );

				$this->mod['q'] = new GDBTOModQuote(
					$this->o['quote_location'],
					$this->o['quote_method'] );
			}
		}

		if ( $this->o['signature_active'] == 1 ) {
			require_once( GDBBPRESSTOOLS_PATH . 'code/mods/signature.php' );

			$this->mod['i']         = new GDBTOModSignature(
				$this->o['signature_length'],
				d4p_bbp_is_role( 'signature_enhanced' ),
				$this->o['signature_method'],
				$this->o['signature_buddypress_profile_group'] );
			$this->mod['i']->active = d4p_bbp_is_role( 'signature' );
		}

		if ( $this->o['bbcodes_active'] == 1 ) {
			require_once( GDBBPRESSTOOLS_PATH . 'code/mods/bbcodes.php' );

			$this->mod['s'] = new GDBTOModShortcodes(
				$this->o['bbcodes_bbpress_only'] == 1,
				! d4p_bbp_is_role( 'bbcodes_special' ),
				'info',
				$this->o['bbcodes_deactivated'],
				$this->o['bbcodes_notice'] == 1 );
		}

		if ( $this->o['toolbar_active'] == 1 && d4p_bbp_is_role( 'toolbar' ) ) {
			require_once( GDBBPRESSTOOLS_PATH . 'code/mods/toolbar.php' );

			$this->mod['t'] = new GDBTOModToolbar();
		}

		if ( $this->o['kses_allowed_override'] != 'bbpress' ) {
			add_filter( 'bbp_kses_allowed_tags', array( $this, 'kses_allowed_tags' ), 10000 );
		} else if ( $this->o['allowed_tags_div'] == 1 ) {
			add_filter( 'bbp_kses_allowed_tags', array( $this, 'allowed_tags' ) );
		}

		$views  = array();
		$active = false;
		foreach ( $this->o as $key => $val ) {
			if ( substr( $key, 0, 5 ) == 'view_' ) {
				$parts                           = explode( '_', $key, 3 );
				$views[ $parts[1] ][ $parts[2] ] = $val;

				if ( ! $active && $parts[2] == 'active' && $val == 1 ) {
					$active = true;
				}
			}
		}

		if ( $active ) {
			require_once( GDBBPRESSTOOLS_PATH . 'code/mods/views.php' );

			$this->mod['v'] = new GDBTOModViews(
				$views );
		}
	}

	public function init_modules() {
		do_action( 'bbtoolbox_init' );
	}

	public function hook_modules() {
		do_action( 'bbtoolbox_core' );
	}

	public function allowed_tags( $list ) {
		$list['div'] = array( 'class' => true );

		return $list;
	}

	public function kses_allowed_tags( $list ) {
		if ( $this->o['kses_allowed_override'] == 'post' ) {
			$list = wp_kses_allowed_html( 'post' );
		} else if ( $this->o['kses_allowed_override'] == 'expanded' ) {
			$list = $this->_kses_expanded_list_of_tags();
		}

		return $list;
	}

	public function load_plugin() {
		if ( ! function_exists( 'bbp_version' ) ) {
			return;
		}

		load_plugin_textdomain( 'gd-bbpress-tools', false, 'gd-bbpress-tools/languages' );

		if ( is_admin() ) {
			require_once( GDBBPRESSTOOLS_PATH . 'code/admin.php' );

			GDBTOAdmin::instance();
		} else {
			require_once( GDBBPRESSTOOLS_PATH . 'code/front.php' );

			GDBTOFront::instance();
		}
	}

	private function _kses_expanded_list_of_tags() {
		return array(
			'a'          => array(
				'class'    => true,
				'href'     => true,
				'title'    => true,
				'rel'      => true,
				'style'    => true,
				'download' => true,
				'target'   => true,
			),
			'abbr'       => array(),
			'blockquote' => array(
				'class' => true,
				'style' => true,
				'cite'  => true,
			),
			'div'        => array(
				'class' => true,
				'style' => true,
			),
			'span'       => array(
				'class' => true,
				'style' => true,
			),
			'code'       => array(
				'class' => true,
				'style' => true,
			),
			'pre'        => array(
				'class' => true,
				'style' => true,
			),
			'em'         => array(
				'class' => true,
				'style' => true,
			),
			'i'          => array(
				'class' => true,
				'style' => true,
			),
			'b'          => array(
				'class' => true,
				'style' => true,
			),
			'strong'     => array(
				'class' => true,
				'style' => true,
			),
			'del'        => array(
				'datetime' => true,
				'class'    => true,
				'style'    => true,
			),
			'h1'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'h2'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'h3'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'h4'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'h5'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'h6'         => array(
				'align' => true,
				'class' => true,
				'style' => true,
			),
			'ul'         => array(
				'class' => true,
				'style' => true,
			),
			'ol'         => array(
				'class' => true,
				'style' => true,
				'start' => true,
			),
			'li'         => array(
				'class' => true,
				'style' => true,
			),
			'img'        => array(
				'class'  => true,
				'style'  => true,
				'src'    => true,
				'border' => true,
				'alt'    => true,
				'height' => true,
				'width'  => true,
			),
			'table'      => array(
				'align'   => true,
				'bgcolor' => true,
				'border'  => true,
				'class'   => true,
				'style'   => true,
			),
			'tbody'      => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
			'td'         => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
			'tfoot'      => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
			'th'         => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
			'thead'      => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
			'tr'         => array(
				'align'  => true,
				'valign' => true,
				'class'  => true,
				'style'  => true,
			),
		);
	}
}