use clap::{Args, Parser, Subcommand};
use clap_complete::Shell;

/// vmic - create and manage PipeWire virtual microphones.
#[derive(Parser)]
#[command(name = "vmic", version, about)]
pub struct Cli {
    #[command(subcommand)]
    pub command: Commands,
}

#[derive(Subcommand)]
pub enum Commands {
    /// Create a new virtual microphone.
    #[command(visible_alias = "mk", visible_alias = "make")]
    Create(CreateArgs),

    /// Move app streams and mix a hardware source into a vmic.
    Route(RouteArgs),

    /// Change loopback and volume settings on a vmic.
    Edit(EditArgs),

    /// Delete a virtual microphone.
    #[command(visible_alias = "rm", visible_alias = "remove")]
    Delete(DeleteArgs),

    /// List all virtual microphones.
    #[command(visible_alias = "ls")]
    List,

    /// Tear down every vmic, tracked or not.
    #[command(visible_alias = "reset")]
    Wipe,

    /// Generate a shell completion script.
    Completions { shell: Shell },
}

#[derive(Args)]
pub struct CreateArgs {
    /// Name for the new vmic.
    pub name: String,

    /// Enable a self-monitor loopback.
    #[arg(short, long)]
    pub loopback: bool,
}

#[derive(Args)]
pub struct RouteArgs {
    /// Name of the vmic to route into.
    pub name: String,

    /// Move matching sink-inputs into this vmic's sink.
    #[arg(short, long = "input", value_name = "APP[:MEDIA]")]
    pub inputs: Vec<String>,

    /// Move matching source-outputs off this vmic's source.
    #[arg(short, long = "output", value_name = "APP[:MEDIA]")]
    pub outputs: Vec<String>,

    /// Mix a hardware source into the vmic, or "none" to remove it.
    #[arg(short, long = "source", value_name = "SOURCE|none")]
    pub source: Option<String>,
}

#[derive(Args)]
pub struct EditArgs {
    /// Name of the vmic to edit.
    pub name: String,

    /// Enable or disable the self-monitor loopback.
    #[arg(short, long)]
    pub loopback: Option<bool>,

    /// Loopback volume: fraction (0.8) or percent (80).
    #[arg(short, long)]
    pub volume: Option<f32>,

    /// Mixed-in source volume: fraction (0.8) or percent (80).
    #[arg(long = "source-volume", visible_alias = "sv")]
    pub source_volume: Option<f32>,
}

#[derive(Args)]
pub struct DeleteArgs {
    /// Name of the vmic to delete.
    pub name: String,
}