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use clap::Args;
use clap::CommandFactory as _;
use clap_complete::aot::Shell;
use mozart_core::console::IoInterface;
#[derive(Args)]
pub struct CompletionArgs {
/// The shell to generate completions for (auto-detected from $SHELL if omitted)
#[arg(value_enum)]
pub shell: Option<Shell>,
}
pub async fn execute(
args: &CompletionArgs,
_cli: &super::Cli,
_io: std::sync::Arc<std::sync::Mutex<Box<dyn IoInterface>>>,
) -> anyhow::Result<()> {
let shell = match args.shell {
Some(s) => s,
None => detect_shell()?,
};
let mut cmd = super::Cli::command();
clap_complete::aot::generate(shell, &mut cmd, "mozart", &mut std::io::stdout());
Ok(())
}
fn detect_shell() -> anyhow::Result<Shell> {
let shell_env = std::env::var("SHELL")
.map_err(|_| anyhow::anyhow!("Could not auto-detect shell. Please specify one of: bash, elvish, fish, powershell, zsh"))?;
let basename = std::path::Path::new(&shell_env)
.file_name()
.and_then(|s| s.to_str())
.unwrap_or("");
match basename {
"bash" => Ok(Shell::Bash),
"zsh" => Ok(Shell::Zsh),
"fish" => Ok(Shell::Fish),
"elvish" => Ok(Shell::Elvish),
"pwsh" | "powershell" => Ok(Shell::PowerShell),
_ => anyhow::bail!(
"Unrecognized shell '{}'. Please specify one of: bash, elvish, fish, powershell, zsh",
basename
),
}
}
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