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/*
 * Copyright (C) 2014 Michal Ratajsky <michal.ratajsky@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the licence, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MATEMIXER_BACKEND_H
#define MATEMIXER_BACKEND_H

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

#include "matemixer-enums.h"
#include "matemixer-stream.h"

G_BEGIN_DECLS

typedef struct
{
    gchar *app_name;
    gchar *app_id;
    gchar *app_version;
    gchar *app_icon;
    gchar *server_address;
} MateMixerBackendData;

#define MATE_MIXER_TYPE_BACKEND                 \
        (mate_mixer_backend_get_type ())
#define MATE_MIXER_BACKEND(o)                   \
        (G_TYPE_CHECK_INSTANCE_CAST ((o), MATE_MIXER_TYPE_BACKEND, MateMixerBackend))
#define MATE_MIXER_IS_BACKEND(o)                \
        (G_TYPE_CHECK_INSTANCE_TYPE ((o), MATE_MIXER_TYPE_BACKEND))
#define MATE_MIXER_BACKEND_GET_INTERFACE(o)     \
        (G_TYPE_INSTANCE_GET_INTERFACE ((o), MATE_MIXER_TYPE_BACKEND, MateMixerBackendInterface))

typedef struct _MateMixerBackend           MateMixerBackend; /* dummy object */
typedef struct _MateMixerBackendInterface  MateMixerBackendInterface;

struct _MateMixerBackendInterface
{
    GTypeInterface parent_iface;

    /*< private >*/
    /* Virtual table */
    void             (*set_data)                  (MateMixerBackend           *backend,
                                                   const MateMixerBackendData *data);

    gboolean         (*open)                      (MateMixerBackend           *backend);
    void             (*close)                     (MateMixerBackend           *backend);

    MateMixerState   (*get_state)                 (MateMixerBackend           *backend);

    GList           *(*list_devices)              (MateMixerBackend           *backend);
    GList           *(*list_streams)              (MateMixerBackend           *backend);
    GList           *(*list_cached_streams)       (MateMixerBackend           *backend);

    MateMixerStream *(*get_default_input_stream)  (MateMixerBackend           *backend);
    gboolean         (*set_default_input_stream)  (MateMixerBackend           *backend,
                                                   MateMixerStream            *stream);

    MateMixerStream *(*get_default_output_stream) (MateMixerBackend           *backend);
    gboolean         (*set_default_output_stream) (MateMixerBackend           *backend,
                                                   MateMixerStream            *stream);

    /* Signals */
    void             (*device_added)              (MateMixerBackend           *backend,
                                                   const gchar                *name);
    void             (*device_removed)            (MateMixerBackend           *backend,
                                                   const gchar                *name);
    void             (*stream_added)              (MateMixerBackend           *backend,
                                                   const gchar                *name);
    void             (*stream_removed)            (MateMixerBackend           *backend,
                                                   const gchar                *name);
    void             (*cached_stream_added)       (MateMixerBackend           *backend,
                                                   const gchar                *name);
    void             (*cached_stream_removed)     (MateMixerBackend           *backend,
                                                   const gchar                *name);
};

GType            mate_mixer_backend_get_type                  (void) G_GNUC_CONST;

void             mate_mixer_backend_set_data                  (MateMixerBackend           *backend,
                                                               const MateMixerBackendData *data);

gboolean         mate_mixer_backend_open                      (MateMixerBackend           *backend);
void             mate_mixer_backend_close                     (MateMixerBackend           *backend);

MateMixerState   mate_mixer_backend_get_state                 (MateMixerBackend           *backend);

GList *          mate_mixer_backend_list_devices              (MateMixerBackend           *backend);
GList *          mate_mixer_backend_list_streams              (MateMixerBackend           *backend);
GList *          mate_mixer_backend_list_cached_streams       (MateMixerBackend           *backend);

MateMixerStream *mate_mixer_backend_get_default_input_stream  (MateMixerBackend           *backend);
gboolean         mate_mixer_backend_set_default_input_stream  (MateMixerBackend           *backend,
                                                               MateMixerStream            *stream);

MateMixerStream *mate_mixer_backend_get_default_output_stream (MateMixerBackend           *backend);
gboolean         mate_mixer_backend_set_default_output_stream (MateMixerBackend           *backend,
                                                               MateMixerStream            *stream);

G_END_DECLS

#endif /* MATEMIXER_BACKEND_H */