use super::Channel;
use crate::{
    channel,
    event::{Instant, Sequenced},
};

#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
#[serde(tag = "event", rename_all = "snake_case")]
pub enum Event {
    Created(Created),
    Deleted(Deleted),
}

impl Sequenced for Event {
    fn instant(&self) -> Instant {
        match self {
            Self::Created(event) => event.channel.created,
            Self::Deleted(event) => event.instant,
        }
    }
}

#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
pub struct Created {
    #[serde(flatten)]
    pub channel: Channel,
}

impl From<Created> for Event {
    fn from(event: Created) -> Self {
        Self::Created(event)
    }
}

#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
pub struct Deleted {
    #[serde(flatten)]
    pub instant: Instant,
    pub id: channel::Id,
}

impl From<Deleted> for Event {
    fn from(event: Deleted) -> Self {
        Self::Deleted(event)
    }
}