use crate::config::{Config, Launcher};
use anyhow::Result;

/// Print manual setup steps for a launcher.
///
/// This is a stub until the iced-based setup wizard lands. It walks the
/// user through creating the prefix directory, obtaining the installer,
/// and running it through umu.
pub fn run(config: &Config, launcher: &Launcher) -> Result<()> {
    let version = launcher
        .proton_version
        .as_deref()
        .unwrap_or(&config.proton_version);
    let proton_path: String = if version == "GE-Proton" {
        version.to_string()
    } else {
        config
            .proton_compat_dir
            .join(version)
            .display()
            .to_string()
    };

    println!("Setup steps for \x1b[1m{}\x1b[0m ({})", launcher.display, launcher.name);
    println!();
    println!("1. Create the prefix directory:");
    println!("     mkdir -p {}", launcher.prefix_dir.display());
    println!();
    println!("2. Obtain the Windows installer for {}.", launcher.display);
    if let Some(url) = &launcher.installer_url {
        println!("     (configured source: {url})");
    } else {
        println!(
            "     No installer URL is configured for '{}'.",
            launcher.name
        );
        println!("     Download the installer from the vendor and save it locally.");
    }
    println!();
    println!("3. Run the installer under umu (replace INSTALLER.EXE with the path):");
    println!(
        "     WINEPREFIX={} \\",
        launcher.prefix_dir.display()
    );
    println!("       GAMEID={} \\", launcher.gameid);
    println!("       PROTONPATH={proton_path} \\");
    println!("       umu-run INSTALLER.EXE");
    println!();
    println!("4. After the installer finishes, verify it placed:");
    println!("     {}", launcher.full_exe_path().display());
    println!();
    println!("5. Then: umutray launch {}", launcher.name);
    println!();
    println!(
        "(A graphical setup wizard via iced is planned — this stub prints the manual\n \
         steps in the meantime.)"
    );

    Ok(())
}