//! Value contracts for the single-worker actor prototype.

use runa_core::ImplementationId;

#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct ActorId(pub u64);

#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct MailboxId(pub u64);

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct Message {
    pub kind: i64,
    pub value: i64,
}

#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Status {
    Idle,
    Running,
    Awaiting,
    Paused,
    Stopped,
    Failed(String),
}

#[derive(Debug, Clone)]
pub struct ActorSnapshot {
    pub id: ActorId,
    pub mailbox: MailboxId,
    pub implementation: ImplementationId,
    pub incarnation: u64,
    pub state: i64,
    pub status: Status,
    pub queued: Vec<Message>,
    pub reserved: Option<Message>,
}

#[derive(Debug, Clone)]
pub enum Event {
    Spawned(ActorId),
    Committed(ActorId),
    Failed(ActorId, String),
    Stopped(ActorId),
    Restarted(ActorId),
    Paused(ActorId),
    Resumed(ActorId),
    BehaviorInstalled(ActorId, ImplementationId),
}