//! Helpers for writing configuration

use crate::WM;
use std::{ffi::OsStr, process::Command};

/// Syntax sugar for creating [`Keybind`]s. This is helpful for writing [`crate::config::KEYBINDS`]
///
/// ```rust
/// /// Control + Shift + t prints "It Works!"
/// bind!(ModMask::CONTROL | ModMask::SHIFT + t -> &|_| {println!("It Works!")})
/// ```
#[macro_export]
macro_rules! bind {
    ($mod:expr , $key:ident -> $action:expr) => {
        Keybind {
            modifiers: $mod,
            key: Keysym::$key,
            action: $action,
        }
    };
}

/// Execute the given command with arguments, disowning the process.
pub fn spawn<I, S>(cmd: &str, args: I)
where
    I: IntoIterator<Item = S>,
    S: AsRef<OsStr>,
{
    if let Err(e) = Command::new(cmd).args(args).spawn() {
        eprintln!("error spawning {cmd}: {e:#?}");
    };
}

/// Move focus to the next window on the stack
pub fn focus_next(wm: &mut WM<'_>) {
    wm.clients.change_focus(&wm.conn, true);
}

/// Move focus to the next window on the stack
pub fn focus_prev(wm: &mut WM<'_>) {
    wm.clients.change_focus(&wm.conn, false);
}