#pragma once

#include <cstdint>
#include <optional>
#include <string_view>
#include <variant>

namespace sc {

struct SendCommand {
    std::string_view target = "monitor"; // monitor, window
    std::string_view peer_address;       // optional; empty means auto-discover
    int bitrate_kbps = 4000;
};

struct ReceiveCommand {
    std::string_view peer_address; // optional, informational
    int local_rtp_port = 5004;
    int signaling_port = 5005;
    bool fullscreen = false;
};

struct DiscoverCommand {
    int timeout_seconds = 3;
};

using Command = std::variant<SendCommand, ReceiveCommand, DiscoverCommand>;

// Parse command line arguments. Prints usage and returns std::nullopt on error.
// `argv` is `char const* const*` so both `main`'s `char**` and const arrays
// convert implicitly.
std::optional<Command> parse_cli(int argc, const char* const argv[]);

} // namespace sc