<?php

class ParTCP_Core_Messages {

	public $configArray;
	public $cryptoObject;
	
	
	public function __construct( $configArray, $cryptoObject ){
		$this->configArray = $configArray;
		$this->cryptoObject = $cryptoObject;
	}

	public function handle_ping( $message, $receipt ){
		$message->get_signature_status();
		$receipt->set( 'Verification-Result', $message->signatureStatusMessage );
		foreach ( $message->data as $key => $value ){
			if ( substr( $key, -1 ) == '~' ){
				$key = substr( $key, 0, -1 );
				$receipt->set( "Decrypt-{$key}", $message->get( $key ) ?? 'NOT DECRYPTABLE' );
			}
			elseif ( substr( $key, 0, 8 ) == 'Encrypt-' ){
				$receipt->set( substr( $key, 8 ), $value, TRUE );
			}
		}
		$receipt->set_public_key();
		return $receipt->dump_signed();
	}
	
	
	public function handle_envelope( $message, $receipt ){
		global $Config, $ServerData;
		if ( ! $content = $message->get('Content') ){
			ptcp_error( '400 Bad Request', 'Incomplete message' );
		}
		echo $message->is_encrypted('Content') ? "encyrypted\n" : "not encrypted\n";
		foreach ( explode( "\n---\n", $content ) as $part ){
			$innerMessage = new ParTCP_Incoming_Message( $part, $this->cryptoObject );
			if ( ! $innerMessage->get('Message-Type') ){
				$result[] = 'Invalid envelope content';
				continue;
			}
			$innerReceipt = new ParTCP_Outgoing_Message( $this->cryptoObject, 'ptcp_get_pubkey' );
			$innerReceipt->set( 'From', $ServerData['name'] );
			$pubKey = NULL;
			if ( $id = $innerMessage->get('From') ){
				$pubKey = ptcp_get_pubkey( $id, $innerMessage, TRUE );
				$innerReceipt->set_recipient( $innerMessage->get('From'), $pubKey );
			}
			if ( empty( $pubKey ) && ( $pubKey = $innerMessage->get('Public-Key') ) ){
				$innerReceipt->recipientPubKey = base64_decode( $pubKey );
			}
			$innerReceipt->set_date();
			$innerReceipt->set( 'Message-Type', 'receipt' );
			$innerReceipt->set( 'Original-Message', $part );
			$result[] = ptcp_handle_message( $innerMessage, $innerReceipt );
		}
		$receipt->set( 'Message-Type', 'envelope' );
		$receipt->set( 'Original-Message', NULL );
		$receipt->set( 'Content', implode( "\n---\n", $result ), $message->is_encrypted('Content') );
		return $receipt->dump_signed();
	}
}

// end of file core_messages.class.php