#include <glib.h>
#include <blockdev/utils.h>

GQuark bd_dm_error_quark (void) {
    return g_quark_from_static_string ("g-bd-dm-error-quark");
}

#define BD_DM_ERROR bd_dm_error_quark ()
typedef enum {
    BD_DM_ERROR_SYS,
    BD_DM_ERROR_NOT_ROOT,
    BD_DM_ERROR_TASK,
    BD_DM_ERROR_RAID_FAIL,
    BD_DM_ERROR_RAID_NO_DEVS,
    BD_DM_ERROR_TECH_UNAVAIL,
} BDDMError;

typedef enum {
    BD_DM_TECH_MAP = 0,
    BD_DM_TECH_RAID,
} BDDMTech;

typedef enum {
    BD_DM_TECH_MODE_CREATE_ACTIVATE   = 1 << 0,
    BD_DM_TECH_MODE_REMOVE_DEACTIVATE = 1 << 1,
    BD_DM_TECH_MODE_QUERY             = 1 << 2,
} BDDMTechMode;

/**
 * bd_dm_is_tech_avail:
 * @tech: the queried tech
 * @mode: a bit mask of queried modes of operation (#BDDMTechMode) for @tech
 * @error: (out): place to store error (details about why the @tech-@mode combination is not available)
 *
 * Returns: whether the @tech-@mode combination is avaible -- supported by the
 *          plugin implementation and having all the runtime dependencies available
 */
gboolean bd_dm_is_tech_avail (BDDMTech tech, guint64 mode, GError **error);

/**
 * bd_dm_create_linear:
 * @map_name: name of the map
 * @device: device to create map for
 * @length: length of the mapping in sectors
 * @uuid: (allow-none): UUID for the new dev mapper device or %NULL if not specified
 * @error: (out): place to store error (if any)
 *
 * Returns: whether the new linear mapping @map_name was successfully created
 * for the @device or not
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_CREATE_ACTIVATE
 */
gboolean bd_dm_create_linear (const gchar *map_name, const gchar *device, guint64 length, const gchar *uuid, GError **error);

/**
 * bd_dm_remove:
 * @map_name: name of the map to remove
 * @error: (out): place to store error (if any)
 *
 * Returns: whether the @map_name map was successfully removed or not
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_REMOVE_DEACTIVATE
 */
gboolean bd_dm_remove (const gchar *map_name, GError **error);

/**
 * bd_dm_name_from_node:
 * @dm_node: name of the DM node (e.g. "dm-0")
 * @error: (out): place to store error (if any)
 *
 * Returns: map name of the map providing the @dm_node device or %NULL
 * (@error) contains the error in such cases)
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_QUERY
 */
gchar* bd_dm_name_from_node (const gchar *dm_node, GError **error);

/**
 * bd_dm_node_from_name:
 * @map_name: name of the queried DM map
 * @error: (out): place to store error (if any)
 *
 * Returns: DM node name for the @map_name map or %NULL (@error) contains
 * the error in such cases)
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_QUERY
 */
gchar* bd_dm_node_from_name (const gchar *map_name, GError **error);

/**
 * bd_dm_get_subsystem_from_name:
 * @device_name: name of the device
 * @error: (out): place to store error (if any)
 *
 * Returns: subsystem of the given device
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_QUERY
 */
gchar* bd_dm_get_subsystem_from_name (const gchar *device_name, GError **error);

/**
 * bd_dm_map_exists:
 * @map_name: name of the queried map
 * @live_only: whether to go through the live maps only or not
 * @active_only: whether to ignore suspended maps or not
 * @error: (out): place to store error (if any)
 *
 * Returns: whether the given @map_name exists (and is live if @live_only is
 * %TRUE (and is active if @active_only is %TRUE)).
 *
 * Tech category: %BD_DM_TECH_MAP-%BD_DM_TECH_MODE_QUERY
 */
gboolean bd_dm_map_exists (const gchar *map_name, gboolean live_only, gboolean active_only, GError **error);

/**
 * bd_dm_get_member_raid_sets:
 * @name: (allow-none): name of the member
 * @uuid: (allow-none): uuid of the member
 * @major: major number of the device or -1 if not specified
 * @minor: minor number of the device or -1 if not specified
 * @error: (out): variable to store error (if any)
 *
 * Returns: (transfer full) (array zero-terminated=1): list of names of the RAID sets related to
 * the member or %NULL in case of error
 *
 * One of @name, @uuid or @major:@minor has to be given.
 *
 * Tech category: %BD_DM_TECH_RAID-%BD_DM_TECH_MODE_QUERY
 */
gchar** bd_dm_get_member_raid_sets (const gchar *name, const gchar *uuid, gint major, gint minor, GError **error);

/**
 * bd_dm_activate_raid_set:
 * @name: name of the DM RAID set to activate
 * @error: (out): variable to store error (if any)
 *
 * Returns: whether the RAID set @name was successfully activate or not
 *
 * Tech category: %BD_DM_TECH_RAID-%BD_DM_TECH_MODE_CREATE_ACTIVATE
 */
gboolean bd_dm_activate_raid_set (const gchar *name, GError **error);

/**
 * bd_dm_deactivate_raid_set:
 * @name: name of the DM RAID set to deactivate
 * @error: (out): variable to store error (if any)
 *
 * Returns: whether the RAID set @name was successfully deactivate or not
 *
 * Tech category: %BD_DM_TECH_RAID-%BD_DM_TECH_MODE_REMOVE_DEACTIVATE
 */
gboolean bd_dm_deactivate_raid_set (const gchar *name, GError **error);

/**
 * bd_dm_get_raid_set_type:
 * @name: name of the DM RAID set to get the type of
 * @error: (out): variable to store error (if any)
 *
 * Returns: string representation of the @name RAID set's type
 *
 * Tech category: %BD_DM_TECH_RAID-%BD_DM_TECH_MODE_QUERY
 */
gchar* bd_dm_get_raid_set_type (const gchar *name, GError **error);