//! Corrosion wire protocol v2 subject scheme (see PROTOCOL.md).
//!
//! Host-level subjects live under `corrosion.{license}.host.*`; per-instance
//! subjects under `corrosion.{license}.{instance_id}.*`. Instance ids are
//! validated at config load so they can never collide with the reserved
//! `host` segment or contain subject metacharacters.

pub fn host_heartbeat(license: &str) -> String {
    format!("corrosion.{license}.host.heartbeat")
}

pub fn host_cmd(license: &str) -> String {
    format!("corrosion.{license}.host.cmd")
}

pub fn host_going_offline(license: &str) -> String {
    format!("corrosion.{license}.host.going_offline")
}

/// Phase 1: per-instance command channel (start/stop/restart/rcon/...).
#[allow(dead_code)]
pub fn instance_cmd(license: &str, instance: &str) -> String {
    format!("corrosion.{license}.{instance}.cmd")
}

/// Phase 1: per-instance state-change events.
#[allow(dead_code)]
pub fn instance_status(license: &str, instance: &str) -> String {
    format!("corrosion.{license}.{instance}.status")
}