/// Pre-flight environment validator for Warlock's Stave (stave-core crate).
/// Checks that all required tooling and system interfaces are available.

use std::process::Command;
use std::path::Path;

fn main() {
    println!("===============================================================================");
    println!("  WARLOCK'S STAVE: PRE-FLIGHT ENVIRONMENT VALIDATOR");
    println!("===============================================================================");

    let mut environment_ready = true;

    match Command::new("rustc").arg("--version").output() {
        Ok(out) => println!("  [OK] Rust Compiler: {}",
            String::from_utf8_lossy(&out.stdout).trim()),
        Err(_) => {
            println!("  [FAIL] 'rustc' not found.");
            environment_ready = false;
        }
    }

    match Command::new("clang").arg("--version").output() {
        Ok(_) => println!("  [OK] LLVM Clang verified (eBPF ready)."),
        Err(_) => println!("  [WARN] 'clang' missing. eBPF layers bypassed."),
    }

    match Command::new("x86_64-w64-mingw32-g++").arg("--version").output() {
        Ok(_) => println!("  [OK] MinGW-w64 detected (Wine integration ready)."),
        Err(_) => println!("  [WARN] MinGW missing. Windows plugin skipped."),
    }

    #[cfg(target_os = "linux")]
    {
        if Path::new("/proc/net/unix").exists() {
            println!("  [OK] Linux procfs readable (socket auditing ready).");
        } else {
            println!("  [FAIL] procfs not available.");
            environment_ready = false;
        }
    }

    println!("-------------------------------------------------------------------------------");
    if environment_ready {
        println!("  RESULT: Environment validated. Ready to build.");
    } else {
        println!("  RESULT: Critical gaps detected. Resolve errors before building.");
        std::process::exit(1);
    }
}