//! The `spectra` command line (spec §19). Output follows `oxy`: colour and
//! glyphs on a UTF-8 terminal, plain when piped, with `--plain` or with
//! `NO_COLOR`; `--json` prints one document on stdout and nothing else.

pub mod format;
pub mod json;
pub mod ui;

use anyhow::Result;
use clap::{Parser, Subcommand};

#[derive(Parser)]
#[command(name = "spectra", version = env!("SPECTRA_VERSION_LONG"), about = "A control plane for AI coding agents")]
pub struct Cli {
    /// Plain output: no colour or glyphs (also NO_COLOR, or when not a terminal)
    #[arg(long, global = true)]
    pub plain: bool,
    #[command(subcommand)]
    pub command: Command,
}

#[derive(Subcommand)]
pub enum Command {
    /// The version and build of this binary
    Version {
        /// Machine-readable output
        #[arg(long)]
        json: bool,
    },
}

pub fn run() -> Result<i32> {
    let cli = Cli::parse();
    ui::init(cli.plain);
    match cli.command {
        Command::Version { json } => version(json),
    }
}

fn version(as_json: bool) -> Result<i32> {
    if as_json {
        println!(
            "{}",
            serde_json::json!({
                "version": env!("CARGO_PKG_VERSION"),
                "build": env!("SPECTRA_BUILD_ID"),
                "mcp_protocol_versions": spectra_mcp::PROTOCOL_VERSIONS,
                "ledger_format": spectra_core::LEDGER_FORMAT,
            })
        );
    } else {
        println!("spectra {}", env!("SPECTRA_VERSION_LONG"));
    }
    Ok(0)
}