#pragma once

// Where the OS wants ephemeral runtime state and persistent user data to live, before
// velox appends its own "/velox" subdirectory and applies the shared 0700-and-owned check
// (rpc/runtime_dir.cpp — that enforcement is portable POSIX logic and stays there; only
// "which base directory" is per-OS). Linux: XDG. macOS: $TMPDIR (runtime) and
// ~/Library/Application Support (data) — see docs/08-porting.md "API mapping".

#include <string>
#include <system_error>

namespace velox::daemon::rpc::platform {

// The base directory ephemeral runtime state (sockets, lock files) should live under,
// e.g. "$XDG_RUNTIME_DIR" or "/run/user/<uid>" on Linux. No trailing slash.
std::error_code runtime_base_dir(std::string& out);

// The base directory persistent user data should live under, e.g. "$XDG_DATA_HOME" or
// "~/.local/share" on Linux. No trailing slash.
std::error_code data_base_dir(std::string& out);

}  // namespace velox::daemon::rpc::platform