use crate::{util, verify, RunScriptArgs};
use rust_util::util_env::is_env_on;
use rust_util::util_os::get_user_home;

pub fn do_run_script(args: &RunScriptArgs) {
    if args.arguments.is_empty() {
        failure_and_exit!("Must assign a script file name");
    }
    let script_file = &args.arguments[0];
    verify::verify_script(script_file, is_env_on("RUNRS_SKIP_VERIFY"));

    let (_, script_sha256) = util::read_file_and_digest(script_file);
    debugging!("File {} -> sha256: {}", script_file, script_sha256);

    let user_home = get_user_home().unwrap_or_else(|| failure_and_exit!("$HOME not found!"));
    let rust_script = util::get_run_script_bin_name(&user_home);
    let cache_script_bin_name = get_cache_script_bin_name(&user_home, &script_sha256);
    let mut run_script_cmd = util::build_script_command(
        rust_script,
        script_file,
        &script_sha256,
        &cache_script_bin_name,
    );
    for arg in args.arguments.iter().skip(1) {
        run_script_cmd.arg(arg);
    }
    util::run_script_command(script_file, &cache_script_bin_name, &mut run_script_cmd)
}

fn get_cache_script_bin_name(user_home: &str, script_sha256: &str) -> String {
    #[cfg(target_os = "macos")]
    let cache_script_bin_name = format!(
        "{}/Library/Caches/rust-script/binaries/release/{}",
        user_home, script_sha256
    );
    // #[cfg(target_os = "linux")]
    #[cfg(not(target_os = "macos"))]
    let cache_script_bin_name = format!(
        "{}/.cache/rust-script/binaries/release/{}",
        user_home, script_sha256
    );
    cache_script_bin_name
}