import * as os from "node:os";
import * as path from "node:path";

/** Root directory for xfer peer sockets + peer metadata. */
export const XFER_DIR = path.join(os.homedir(), ".pi", "xfer");

/** Mesh engine config (endpoint/namespace/token) for the opt-in mesh transport. */
export const MESH_CONFIG_PATH = path.join(XFER_DIR, "mesh.config.json");

/** Download cache for the mesh native runtime binary (never in git). */
export const MESH_CACHE_DIR = path.join(XFER_DIR, "cache");

export const CONNECT_TIMEOUT_MS = 5_000;
export const ACK_TIMEOUT_MS = 5_000;
export const METADATA_POLL_MS = 1_000;
export const MAX_FRAME_BYTES = 1024 * 1024;

/** Deadline for a mesh engine query (node listing) before the engine counts as unreachable. */
export const MESH_PROBE_TIMEOUT_MS = 2_500;