import { spawn } from 'node:child_process';
import { setting } from './config.ts';

// Opening a URL in the user's browser, when there plausibly is one.

export function canOpenBrowser(): boolean {
    if (setting('browser') === 'never') return false;
    if (process.env['SSH_CONNECTION'] || process.env['SSH_TTY']) return false;
    if (process.platform === 'darwin' || process.platform === 'win32') return true;
    return Boolean(process.env['DISPLAY'] || process.env['WAYLAND_DISPLAY']);
}

// Best effort: the URL has been printed as well. Windows goes through the URL
// protocol handler rather than `cmd /c start`, which would read every `&` in a
// query string as a command separator.
export function openBrowser(url: string): void {
    const [cmd, ...args] = process.platform === 'darwin' ? ['open', url]
        : process.platform === 'win32' ? ['rundll32', 'url.dll,FileProtocolHandler', url]
        : ['xdg-open', url];
    try {
        spawn(cmd!, args, { stdio: 'ignore', detached: true }).on('error', () => {}).unref();
    } catch {
        // The URL is on screen.
    }
}