using Gee, Lm;

class ModuleIq : Module {
    const string NS_IQ_VERSION = "jabber:iq:version";
    public static delegate void Callback(string id, MessageNode request, MessageNode response);
    protected HashMap<string, Callback> callbacks;
    public ModuleIq(Config cfg, Connection conn) {
        base(cfg, conn);
        var iq_handler = new Lm.MessageHandler((handler, connection, message) => {
            var node = message.node;

            var query = node.get_child("query");
            if (query == null) return Lm.HandlerResult.ALLOW_MORE_HANDLERS;

            var from = node.get_attribute("from");
            var id = node.get_attribute("id");

            var response = new Lm.Message(from, Lm.MessageType.IQ);
            response.node.set_attribute("type","result");
            if (id!=null)
                response.node.set_attribute("id",id);
            var rquery = response.node.add_child("query",null);
            
            switch (query.get_attribute("xmlns")) {
                case NS_IQ_VERSION:
                    rquery.set_attribute("xmlns", NS_IQ_VERSION);
                    rquery.add_child("name", "iswydt");
                    rquery.add_child("version", IswydtVersion);
                    stderr.printf("RQ: %s\n",rquery.to_string());
                    stderr.printf("RS: %s\n",response.node.to_string());
                    this.conn.cn.send(response);
                    return Lm.HandlerResult.REMOVE_MESSAGE;
            }
            return Lm.HandlerResult.ALLOW_MORE_HANDLERS;
        }, null);
        conn.cn.register_message_handler(iq_handler, Lm.MessageType.IQ, Lm.HandlerPriority.NORMAL);
    }
    public override string name() {
        return "iq";
    }
}