/*
 * Copyright (C) 2014 Red Hat, Inc.
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */

#ifndef __COCKPIT_TRANSPORT_H__
#define __COCKPIT_TRANSPORT_H__

#include <glib-object.h>
#include <json-glib/json-glib.h>

G_BEGIN_DECLS

#define COCKPIT_TYPE_TRANSPORT            (cockpit_transport_get_type ())
G_DECLARE_DERIVABLE_TYPE(CockpitTransport, cockpit_transport, COCKPIT, TRANSPORT, GObject)

struct _CockpitTransportClass
{
  GObjectClass parent_class;

  /* signals */

  /*
   * Fired when the transport receives a new message.
   */
  gboolean    (* recv)        (CockpitTransport *transport,
                               const gchar *channel,
                               GBytes *data);

  gboolean    (* control)     (CockpitTransport *transport,
                               const char *command,
                               const gchar *channel,
                               JsonObject *options,
                               GBytes *payload);

  void        (* closed)      (CockpitTransport *transport,
                               const gchar *problem);

  /* vfuncs */

  /*
   * Called when transport should queue a new message to send.
   */
  void        (* send)        (CockpitTransport *transport,
                               const gchar *channel,
                               GBytes *data);

  void        (* close)       (CockpitTransport *transport,
                               const gchar *problem);
};

void        cockpit_transport_send           (CockpitTransport *transport,
                                              const gchar *channel,
                                              GBytes *data);

void        cockpit_transport_close          (CockpitTransport *transport,
                                              const gchar *problem);

void        cockpit_transport_emit_recv      (CockpitTransport *transport,
                                              const gchar *channel,
                                              GBytes *data);

void        cockpit_transport_emit_control   (CockpitTransport *transport,
                                              const gchar *command,
                                              const gchar *channel,
                                              JsonObject *options,
                                              GBytes *data);

void        cockpit_transport_emit_closed    (CockpitTransport *transport,
                                              const gchar *problem);

void        cockpit_transport_freeze         (CockpitTransport *transport,
                                              const gchar *channel);

void        cockpit_transport_thaw           (CockpitTransport *transport,
                                              const gchar *channel);

GBytes *    cockpit_transport_parse_frame    (GBytes *message,
                                              gchar **channel);

gboolean    cockpit_transport_parse_command  (GBytes *payload,
                                              const gchar **command,
                                              const gchar **channel,
                                              JsonObject **options);

JsonObject *cockpit_transport_build_json     (const gchar *name,
                                              ...) G_GNUC_NULL_TERMINATED;

GBytes *    cockpit_transport_build_control  (const gchar *name,
                                              ...) G_GNUC_NULL_TERMINATED;

G_END_DECLS

#endif /* __COCKPIT_TRANSPORT_H__ */
