//! `branches [pattern] [repo]` — list branches, optionally filtered.

use anyhow::Result;
use clap::Args as ClapArgs;

use crate::client::Client;

#[derive(ClapArgs)]
pub struct Args {
    /// Substring pattern to filter branch names.
    pattern: Option<String>,
}

pub fn run(client: &Client, args: Args) -> Result<()> {
    let (owner, name) = client.owner_repo()?;
    let (_, branches) = client
        .api()
        .repo_list_branches(owner, name)
        .page_size(100)
        .send()?;
    for branch in &branches {
        let Some(n) = branch.name.as_deref() else {
            continue;
        };
        if args.pattern.as_deref().is_none_or(|p| n.contains(p)) {
            println!("{n}");
        }
    }
    Ok(())
}