<?php

/**
 * vBulletin Converter
 *
 * @since bbPress (r)
 */
class vBulletin extends BBP_Converter_Base {

	/**
	 * Main constructor
	 *
	 * @uses vBulletin::setup_globals()
	 */
	function __construct() {
		parent::__construct();
		$this->setup_globals();
	}

	/**
	 * Sets up the field mappings
	 */
	private function setup_globals() {

		/** Forum Section *****************************************************/

		// Forum id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'forum',
			'from_fieldname' => 'forumid',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_forum_id'
		);

		// Forum parent id (If no parent, than 0. Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'forum',
			'from_fieldname' => 'parentid',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_forum_parent_id'
		);

		// Forum title.
		$this->field_map[] = array(
			'from_tablename' => 'forum',
			'from_fieldname' => 'title',
			'to_type'        => 'forum',
			'to_fieldname'   => 'post_title'
		);

		// Forum slug (Clean name to avoid confilcts)
		$this->field_map[] = array(
			'from_tablename'  => 'forum',
			'from_fieldname'  => 'title_clean',
			'to_type'         => 'forum',
			'to_fieldname'    => 'post_name',
			'callback_method' => 'callback_slug'
		);

		// Forum description.
		$this->field_map[] = array(
			'from_tablename'  => 'forum',
			'from_fieldname'  => 'description',
			'to_type'         => 'forum',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_null'
		);

		// Forum display order (Starts from 1)
		$this->field_map[] = array(
			'from_tablename' => 'forum',
			'from_fieldname' => 'displayorder',
			'to_type'        => 'forum',
			'to_fieldname'   => 'menu_order'
		);

		// Forum date update.
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_date',
			'default'      => date( 'Y-m-d H:i:s' )
		);
		$this->field_map[]	 = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_date_gmt',
			'default'      => date( 'Y-m-d H:i:s' )
		);
		$this->field_map[]	 = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_modified',
			'default'      => date( 'Y-m-d H:i:s' )
		);
		$this->field_map[]	 = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_modified_gmt',
			'default'      => date( 'Y-m-d H:i:s' )
		);

		/** Topic Section *****************************************************/

		// Topic id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'thread',
			'from_fieldname' => 'threadid',
			'to_type'        => 'topic',
			'to_fieldname'   => '_bbp_topic_id'
		);

		// Forum id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'forumid',
			'to_type'         => 'topic',
			'to_fieldname'    => '_bbp_forum_id',
			'callback_method' => 'callback_forumid'
		);

		// Topic author.
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'postuserid',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_author',
			'callback_method' => 'callback_userid'
		);

		// Topic title.
		$this->field_map[] = array(
			'from_tablename' => 'thread',
			'from_fieldname' => 'title',
			'to_type'        => 'topic',
			'to_fieldname'   => 'post_title'
		);

		// Topic slug (Clean name to avoid conflicts)
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'title',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_name',
			'callback_method' => 'callback_slug'
		);

		// Forum id (If no parent, than 0)
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'forumid',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_parent',
			'callback_method' => 'callback_forumid'
		);

		// Topic content.
		// Note: We join the posts table because topics do not have content.
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'pagetext',
			'join_tablename'  => 'thread',
			'join_type'       => 'INNER',
			'join_expression' => 'USING (threadid) WHERE post.parentid = 0',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_html'
		);

		// Topic date update.
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_date',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_date_gmt',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_modified',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'thread',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_modified_gmt',
			'callback_method' => 'callback_datetime'
		);

		/** Tags Section ******************************************************/

		// Topic id.
		$this->field_map[] = array(
			'from_tablename'  => 'tagcontent',
			'from_fieldname'  => 'contentid',
			'to_type'         => 'tags',
			'to_fieldname'    => 'objectid',
			'callback_method' => 'callback_topicid'
		);

		// Tags text.
		$this->field_map[] = array(
			'from_tablename'  => 'tag',
			'from_fieldname'  => 'tagtext',
			'join_tablename'  => 'tagcontent',
			'join_type'       => 'INNER',
			'join_expression' => 'USING (tagid)',
			'to_type'         => 'tags',
			'to_fieldname'    => 'name'
		);

		/** Post Section ******************************************************/

		// Post id (Stores in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'postid',
			'from_expression' => 'WHERE post.parentid != 0',
			'to_type'         => 'reply',
			'to_fieldname'    => '_bbp_post_id'
		);

		// Forum id (Stores in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'threadid',
			'to_type'         => 'reply',
			'to_fieldname'    => '_bbp_forum_id',
			'callback_method' => 'callback_topicid_to_forumid'
		);

		// Topic id (Stores in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'threadid',
			'to_type'         => 'reply',
			'to_fieldname'    => '_bbp_topic_id',
			'callback_method' => 'callback_topicid'
		);

		// Author ip.
		$this->field_map[] = array(
			'from_tablename' => 'post',
			'from_fieldname' => 'ipaddress',
			'to_type'        => 'reply',
			'to_fieldname'   => '_bbp_author_ip'
		);

		// Post author.
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'userid',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_author',
			'callback_method' => 'callback_userid'
		);

		// Topic title.
		$this->field_map[] = array(
			'from_tablename' => 'post',
			'from_fieldname' => 'title',
			'to_type'        => 'reply',
			'to_fieldname'   => 'post_title'
		);

		// Topic slug (Clean name)
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'title',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_name',
			'callback_method' => 'callback_slug'
		);

		// Post content.
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'pagetext',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_html'
		);

		// Topic id (If no parent, than 0)
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'threadid',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_parent',
			'callback_method' => 'callback_topicid'
		);

		// Topic date update.
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_date',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_date_gmt',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_modified',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[]	 = array(
			'from_tablename'  => 'post',
			'from_fieldname'  => 'dateline',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_modified_gmt',
			'callback_method' => 'callback_datetime'
		);

		/** User Section ******************************************************/

		// Store old User id (Stores in usermeta)
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'userid',
			'to_type'        => 'user',
			'to_fieldname'   => '_bbp_user_id'
		);

		// Store old User password (Stores in usermeta serialized with salt)
		$this->field_map[] = array(
			'from_tablename'  => 'user',
			'from_fieldname'  => 'password',
			'to_type'         => 'user',
			'to_fieldname'    => '_bbp_password',
			'callback_method' => 'callback_savepass'
		);

		// Store old User Salt (This is only used for the SELECT row info for
		// the above password save)
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'salt',
			'to_type'        => 'user',
			'to_fieldname'   => ''
		);

		// User password verify class (Stores in usermeta for verifying password)
		$this->field_map[] = array(
			'to_type'      => 'user',
			'to_fieldname' => '_bbp_class',
			'default'      => 'vBulletin'
		);

		// User name.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'username',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_login'
		);

		// User nice name.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'user_nicename',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_nicename'
		);

		// User email.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'email',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_email'
		);

		// User homepage.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'homepage',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_url'
		);

		// User registered.
		$this->field_map[] = array(
			'from_tablename'  => 'user',
			'from_fieldname'  => 'joindate',
			'to_type'         => 'user',
			'to_fieldname'    => 'user_registered',
			'callback_method' => 'callback_datetime'
		);

		// User aim.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'aim',
			'to_type'        => 'user',
			'to_fieldname'   => 'aim'
		);

		// User yahoo.
		$this->field_map[] = array(
			'from_tablename' => 'user',
			'from_fieldname' => 'yahoo',
			'to_type'        => 'user',
			'to_fieldname'   => 'yim'
		);
	}

	/**
	 * This method allows us to indicates what is or is not converted for each
	 * converter.
	 */
	public function info() {
		return '';
	}

	/**
	 * This method is to save the salt and password together.  That
	 * way when we authenticate it we can get it out of the database
	 * as one value. Array values are auto sanitized by wordpress.
	 */
	public function callback_savepass( $field, $row ) {
		$pass_array = array( 'hash'	 => $field, 'salt'	 => $row['salt'] );
		return $pass_array;
	}

	/**
	 * This method is to take the pass out of the database and compare
	 * to a pass the user has typed in.
	 */
	public function authenticate_pass( $password, $serialized_pass ) {
		$pass_array = unserialize( $serialized_pass );
		return ( $pass_array['hash'] == md5( md5( $password ) . $pass_array['salt'] ) );
	}
}