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use crate::gateway::presence::Presence;
use serde::{Deserialize, Serialize};
use std::ops::{Deref, DerefMut};

/// User's presence was updated.
///
/// This may be received when a user's activity, status, or user
/// information - such as avatar or username - is updated.
///
/// Requires the [`Intents::GUILD_PRESENCES`] intent to receive this event.
///
/// Refer to [Discord Docs/Presence Update] for additional information.
///
/// [`Intents::GUILD_PRESENCES`]: crate::gateway::Intents
/// [Discord Docs/Presence Update]: https://discord.com/developers/docs/topics/gateway#presence-update
#[derive(Clone, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
pub struct PresenceUpdate(pub Presence);

impl Deref for PresenceUpdate {
    type Target = Presence;

    fn deref(&self) -> &Self::Target {
        &self.0
    }
}

impl DerefMut for PresenceUpdate {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut self.0
    }
}

#[cfg(test)]
mod tests {
    use super::PresenceUpdate;
    use serde::{Deserialize, Serialize};
    use static_assertions::assert_impl_all;
    use std::{
        fmt::Debug,
        hash::Hash,
        ops::{Deref, DerefMut},
    };

    assert_impl_all!(
        PresenceUpdate: Clone,
        Debug,
        Deref,
        DerefMut,
        Deserialize<'static>,
        Eq,
        Hash,
        PartialEq,
        Serialize,
        Send,
        Sync
    );
}