// build.rs -- Compile-time detection of optional build tools.
//
// Sets cfg flags that integration tests use to gracefully skip when
// tools are missing instead of panicking with scary error messages.
//
//   has_cmake          cmake is in PATH
//   has_cpp_compiler   g++, clang++, or cl is in PATH
//   has_git            git is in PATH
//   has_arduino_cli    arduino-cli is in PATH
//
// Usage in tests:
//   #[cfg_attr(not(has_cmake), ignore = "cmake not found")]

use std::process::{Command, Stdio};

fn has_tool(name: &str) -> bool {
    Command::new(name)
        .arg("--version")
        .stdout(Stdio::null())
        .stderr(Stdio::null())
        .status()
        .is_ok()
}

fn main() {
    println!("cargo::rustc-check-cfg=cfg(has_cmake)");
    println!("cargo::rustc-check-cfg=cfg(has_cpp_compiler)");
    println!("cargo::rustc-check-cfg=cfg(has_git)");
    println!("cargo::rustc-check-cfg=cfg(has_arduino_cli)");

    if has_tool("cmake") {
        println!("cargo:rustc-cfg=has_cmake");
    }
    if has_tool("g++") || has_tool("clang++") || has_tool("cl") {
        println!("cargo:rustc-cfg=has_cpp_compiler");
    }
    if has_tool("git") {
        println!("cargo:rustc-cfg=has_git");
    }
    if has_tool("arduino-cli") {
        println!("cargo:rustc-cfg=has_arduino_cli");
    }
}