/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Determines if we should attempt to launch a browser for authentication
 * based on the user's environment.
 *
 * This is an adaptation of the logic from the Google Cloud SDK.
 * @returns True if the tool should attempt to launch a browser.
 */
export function shouldAttemptBrowserLaunch() {
    // A list of browser names that indicate we should not attempt to open a
    // web browser for the user.
    const browserBlocklist = ['www-browser'];
    const browserEnv = process.env['BROWSER'];
    if (browserEnv && browserBlocklist.includes(browserEnv)) {
        return false;
    }
    // Common environment variables used in CI/CD or other non-interactive shells.
    if (process.env['CI'] ||
        process.env['DEBIAN_FRONTEND'] === 'noninteractive') {
        return false;
    }
    // The presence of SSH_CONNECTION indicates a remote session.
    // We should not attempt to launch a browser unless a display is explicitly available
    // (checked below for Linux).
    const isSSH = !!process.env['SSH_CONNECTION'];
    // On Linux, the presence of a display server is a strong indicator of a GUI.
    if (process.platform === 'linux') {
        // These are environment variables that can indicate a running compositor on
        // Linux.
        const displayVariables = ['DISPLAY', 'WAYLAND_DISPLAY', 'MIR_SOCKET'];
        const hasDisplay = displayVariables.some((v) => !!process.env[v]);
        if (!hasDisplay) {
            return false;
        }
    }
    // If in an SSH session on a non-Linux OS (e.g., macOS), don't launch browser.
    // The Linux case is handled above (it's allowed if DISPLAY is set).
    if (isSSH && process.platform !== 'linux') {
        return false;
    }
    // For non-Linux OSes, we generally assume a GUI is available
    // unless other signals (like SSH) suggest otherwise.
    // The `open` command's error handling will catch final edge cases.
    return true;
}
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