use std::{fmt::Display, str::FromStr};

use serde::{Deserialize, Serialize};

/// These are different parts of the canonical MPD server.

/// They are mostly used in the protocol with the `idle` command,

/// signalling that the client is waiting for changes in any, one or multiple of these subsystems.

#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]

pub enum SubSystem {

    /// The song database has been modified after update.

    Database,

    /// A database update has started or finished. If the database was modified during the update, the database event is also emitted.

    Update,

    /// A stored playlist has been modified, renamed, created or deleted

    StoredPlaylist,

    /// The queue (i.e. the current playlist) has been modified

    Playlist,

    /// The player has been started, stopped or seeked or tags of the currently playing song have changed (e.g. received from stream)

    Player,

    /// The volume has been changed

    Mixer,

    /// An audio output has been added, removed or modified (e.g. renamed, enabled or disabled)

    Output,

    /// Options like repeat, random, crossfade, replay gain

    Options,

    /// A partition was added, removed or changed

    Partition,

    /// The sticker database has been modified.

    Sticker,

    /// A client has subscribed or unsubscribed to a channel

    Subscription,

    /// A message was received on a channel this client is subscribed to; this event is only emitted when the client’s message queue is empty

    Message,

    /// A neighbor was found or lost

    Neighbor,

    /// The mount list has changed

    Mount,

    /// Other subsystems not covered by the above

    Other(String),

}

impl FromStr for SubSystem {

    type Err = ();

        })

}

impl Display for SubSystem {

        }

}