refactor (Opus 4.5): modularize and split

crates/lanspread-peer/src/config.rs

@@ -0,0 +1,30 @@
+//! Configuration constants for the peer system.
+
+use std::time::Duration;
+
+/// Interval between peer ping checks (seconds).
+pub const PEER_PING_INTERVAL_SECS: u64 = 5;
+
+/// Timeout after which a peer is considered stale (seconds).
+pub const PEER_STALE_TIMEOUT_SECS: u64 = 12;
+
+/// Size of each download chunk (32 MB).
+pub const CHUNK_SIZE: u64 = 32 * 1024 * 1024;
+
+/// Maximum number of retry attempts for failed chunk downloads.
+pub const MAX_RETRY_COUNT: usize = 3;
+
+/// Interval for local game directory monitoring (seconds).
+pub const LOCAL_GAME_MONITOR_INTERVAL_SECS: u64 = 5;
+
+/// TLS certificate for QUIC connections.
+pub static CERT_PEM: &str = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/../../cert.pem"));
+
+/// TLS private key for QUIC connections.
+pub static KEY_PEM: &str = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/../../key.pem"));
+
+/// Returns the peer stale timeout as a Duration.
+#[must_use]
+pub fn peer_stale_timeout() -> Duration {
+    Duration::from_secs(PEER_STALE_TIMEOUT_SECS)
+}