use std::ffi::OsString;
use std::path::PathBuf;
use std::process::{Command, exit};
use std::{env, fs};

fn main() {
    println!("cargo::rerun-if-changed=java/gradle");
    println!("cargo::rerun-if-changed=java/src");
    println!("cargo::rerun-if-changed=java/build.gradle.kts");
    println!("cargo::rerun-if-changed=java/settings.gradle.kts");
    println!("cargo::rerun-if-changed=java/gradle.properties");

    let out_dir =
        dunce::canonicalize(PathBuf::from(env::var_os("OUT_DIR").unwrap()))
            .unwrap();

    println!(
        "cargo::rustc-env=JAVA_JARS_DIR={}",
        out_dir.join("java/libs").display()
    );

    let gradle_path = fs::canonicalize(
        #[cfg(target_os = "windows")]
        "java\\gradlew.bat",
        #[cfg(not(target_os = "windows"))]
        "java/gradlew",
    )
    .unwrap();

    let mut build_dir_str = OsString::from("-Dorg.gradle.project.buildDir=");
    build_dir_str.push(out_dir.join("java"));
    let exit_status = Command::new(gradle_path)
        .arg(build_dir_str)
        .arg("build")
        .arg("--no-daemon")
        .arg("--console=rich")
        .current_dir(dunce::canonicalize("java").unwrap())
        .status()
        .expect("Failed to wait on Gradle build");
    if !exit_status.success() {
        println!("cargo::error=Gradle build failed with {exit_status}");
        exit(exit_status.code().unwrap_or(1));
    }
}