use crate::{channel::Channel, event::Sequence, message::Message, user::User};
use serde::Serialize;
use std::time::Duration;

pub mod app;
mod routes;

pub use self::routes::router;

#[derive(serde::Serialize)]
pub struct Snapshot {
    pub resume_point: Sequence,
    #[serde(serialize_with = "as_seconds")]
    pub heartbeat: Duration,
    pub users: Vec<User>,
    pub channels: Vec<Channel>,
    pub messages: Vec<Message>,
}

fn as_seconds<S>(duration: &Duration, serializer: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    duration.as_secs().serialize(serializer)
}