//! Per-agent path resolution for state and credential directories.
//!
//! All agents (including the manager "hm1nd") use `/agents/{label}/state`.
//! Claude credentials are always at `/root/.claude` for all agents.
//!
//! Both paths can be overridden via env vars (`HYPERHIVE_STATE_DIR`,
//! `HYPERHIVE_CLAUDE_DIR`) for dev / test scenarios.

use std::path::PathBuf;

/// Durable state directory for the current agent. Reads `HYPERHIVE_STATE_DIR`
/// first (always set by the meta flake to `/agents/{label}/state`); falls back
/// to the same pattern derived from `HIVE_LABEL` for dev/test environments
/// where the env var may not be set.
#[must_use]
pub fn state_dir() -> PathBuf {
    if let Some(p) = std::env::var_os("HYPERHIVE_STATE_DIR") {
        return PathBuf::from(p);
    }
    let label = std::env::var("HIVE_LABEL").unwrap_or_default();
    PathBuf::from(format!("/agents/{label}/state"))
}

/// Claude credentials directory for the current agent. Always `/root/.claude`
/// because the `claude` CLI reads `$HOME/.claude` (uid 0 → `/root`), and
/// hive-c0re binds the per-agent credentials dir there for every container.
/// Overridable via `HYPERHIVE_CLAUDE_DIR` for dev / test scenarios.
#[must_use]
pub fn claude_dir() -> PathBuf {
    std::env::var_os("HYPERHIVE_CLAUDE_DIR")
        .map_or_else(|| PathBuf::from("/root/.claude"), PathBuf::from)
}