#![allow(
    clippy::cast_possible_truncation,
    clippy::cast_sign_loss,
    clippy::cast_precision_loss,
    clippy::cast_possible_wrap
)]
//! Pure SessionLock entity — no lock / unlock logic.
//!
//! Lock acquisition and release are handled by the repository.
use serde::{Deserialize, Serialize};
use std::path::{Path, PathBuf};

/// A PID-file based session lock handle.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SessionLock {
    pub path: PathBuf,
    pub pid: u32,
}

impl SessionLock {
    /// Construct a lock handle for a session directory (does not acquire
    /// the lock yet — use the repository's `try_lock`).
    pub fn new(session_dir: &Path) -> Self {
        SessionLock {
            path: session_dir.join(".lock"),
            pid: std::process::id(),
        }
    }
}