use clap::Parser;

#[derive(Parser, Debug, Clone)]
#[command(name = "wl-webrtc", about = "Wayland screen capture and encoding tool")]
pub struct Args {
    /// Output file path (e.g., output.mp4, output.mkv). Optional when using --port for WebRTC mode
    #[arg(short, long)]
    pub output: Option<String>,

    /// Wayland output name to capture
    #[arg(long)]
    pub output_name: Option<String>,

    /// Target frames per second
    #[arg(long, default_value_t = 30)]
    pub fps: u32,

    /// Video codec (h264 only for MVP)
    #[arg(long, default_value = "h264")]
    pub codec: String,

    /// Hardware acceleration method (vaapi only for MVP)
    #[arg(long, default_value = "vaapi")]
    pub hw_accel: String,

    /// DRM render device path (e.g., /dev/dri/renderD128)
    #[arg(long)]
    pub drm_device: Option<String>,

    /// Target bitrate in bits per second
    #[arg(long)]
    pub bitrate: Option<u64>,

    /// Maximum bitrate in bps for WebRTC mode. Caps BWE-driven escalation to
    /// prevent large IDR bursts from swamping the network. Default 8 Mbps covers
    /// 1080p30/1440p30 H.264 acceptably. Does NOT affect MP4 (--output) mode.
    /// See issue #23.
    #[arg(long, default_value = "8000000")]
    pub max_bitrate: u64,

    /// Group of Pictures (GOP) size
    #[arg(long)]
    pub gop_size: Option<u32>,

    /// Enable verbose logging
    #[arg(short, long)]
    pub verbose: bool,

    /// Capture backend to use: 'screencopy' (wlroots) or 'portal' (KWin/KDE). Auto-detected if omitted
    #[arg(long)]
    pub backend: Option<String>,

    /// Port for WebRTC HTTP signaling server; 0 keeps MP4 file output mode
    #[arg(long, default_value_t = 0)]
    pub port: u16,

    /// Force re-authorization dialog (ignore saved portal restore token)
    #[arg(long)]
    pub no_persist: bool,

    /// Enable per-second pipeline statistics output for stutter diagnosis
    #[arg(long)]
    pub stats: bool,
}