public function parse_transaction( array $transaction ) {
		if ( ! empty( $transaction['custom'] ) ) {
			$decoded_custom = Tribe__Tickets__Commerce__PayPal__Custom_Argument::decode( $transaction['custom'], true );

			if ( empty( $decoded_custom['tribe_handler'] ) || 'tpp' !== $decoded_custom['tribe_handler'] ) {
				return false;
			}
		}

		if ( $this->handler instanceof Tribe__Tickets__Commerce__PayPal__Handler__Invalid_PDT ) {
			$this->handler->save_transaction();

			return false;
		}

		$item_indexes = array(
			'item_number',
			'item_name',
			'quantity',
			'mc_handling',
			'mc_shipping',
			'tax',
			'mc_gross_',
		);

		$item_indexes_regex = '/(' . implode( '|', $item_indexes ) . ')(\d)/';

		$data = array(
			'items' => array(),
		);


		foreach ( $transaction as $key => $value ) {
			if ( ! preg_match( $item_indexes_regex, $key, $matches ) ) {
				$data[ $key ] = $value;
				continue;
			}

			$index = $matches[2];
			$name = trim( $matches[1], '_' );

			if ( ! isset( $data['items'][ $index ] ) ) {
				$data['items'][ $index ] = array();
			}

			$data['items'][ $index ][ $name ] = $value;
		}

		foreach ( $data['items'] as &$item ) {
			if ( ! isset( $item['item_number'] ) ) {
				continue;
			}

			list( $item['post_id'], $item['ticket_id'] ) = explode( ':', $item['item_number'] );

			$item['ticket'] = tribe( 'tickets.commerce.paypal' )->get_ticket( $item['post_id'], $item['ticket_id'] );
		}

		return $data;
	}