rsconstruct 0.9.83

Rust based fast build system
use crate::common::{run_rsconstruct, run_rsconstruct_with_env};
use std::fs;
use tempfile::TempDir;

fn setup_rust_project() -> TempDir {
    let temp_dir = TempDir::new().expect("Failed to create temp dir");
    fs::create_dir_all(temp_dir.path().join("src")).expect("Failed to create src dir");
    fs::write(
        temp_dir.path().join("rsconstruct.toml"),
        "[processor.rust_single_file]\nsrc_dirs = [\"src\"]\n",
    )
    .expect("Failed to write rsconstruct.toml");
    temp_dir
}

#[test]
fn rust_single_file_basic_compile() {
    let temp_dir = setup_rust_project();
    let project_path = temp_dir.path();

    fs::write(
        project_path.join("src/hello.rs"),
        "fn main() { println!(\"Hello\"); }\n",
    )
    .unwrap();

    let output = run_rsconstruct_with_env(project_path, &["build"], &[("NO_COLOR", "1")]);
    assert!(
        output.status.success(),
        "rsconstruct build failed: {}",
        String::from_utf8_lossy(&output.stderr)
    );

    let output_file = project_path.join("out/rust_single_file/hello.elf");
    assert!(output_file.exists(), "Output executable was not created");
}

#[test]
fn rust_single_file_incremental_build() {
    let temp_dir = setup_rust_project();
    let project_path = temp_dir.path();

    fs::write(project_path.join("src/hello.rs"), "fn main() {}\n").unwrap();

    let output1 = run_rsconstruct_with_env(project_path, &["build", "-v"], &[("NO_COLOR", "1")]);
    assert!(output1.status.success());
    let stdout1 = String::from_utf8_lossy(&output1.stdout);
    assert!(
        stdout1.contains("Processing:"),
        "Expected 'Processing:' in first build output: {}",
        stdout1
    );

    let output2 =
        run_rsconstruct_with_env(project_path, &["build", "--verbose"], &[("NO_COLOR", "1")]);
    assert!(output2.status.success());
    let stdout2 = String::from_utf8_lossy(&output2.stdout);
    assert!(
        stdout2.contains("[rust_single_file] Skipping (unchanged):"),
        "Expected skip message in second build: {}",
        stdout2
    );
}

#[test]
fn rust_single_file_compile_error_fails() {
    let temp_dir = setup_rust_project();
    let project_path = temp_dir.path();

    fs::write(
        project_path.join("src/bad.rs"),
        "fn main() { let x: i32 = \"not a number\"; }\n",
    )
    .unwrap();

    let output = run_rsconstruct_with_env(project_path, &["build"], &[("NO_COLOR", "1")]);
    assert!(
        !output.status.success(),
        "Build should fail with compile error"
    );
}

#[test]
fn rust_single_file_clean() {
    let temp_dir = setup_rust_project();
    let project_path = temp_dir.path();

    fs::write(project_path.join("src/hello.rs"), "fn main() {}\n").unwrap();

    let output = run_rsconstruct(project_path, &["build"]);
    assert!(output.status.success());
    assert!(project_path.join("out/rust_single_file/hello.elf").exists());

    let output = run_rsconstruct(project_path, &["clean", "outputs"]);
    assert!(output.status.success());
    assert!(!project_path.join("out/rust_single_file/hello.elf").exists());
}

#[test]
fn rust_single_file_multiple_files() {
    let temp_dir = setup_rust_project();
    let project_path = temp_dir.path();

    fs::write(
        project_path.join("src/one.rs"),
        "fn main() { println!(\"one\"); }\n",
    )
    .unwrap();

    fs::write(
        project_path.join("src/two.rs"),
        "fn main() { println!(\"two\"); }\n",
    )
    .unwrap();

    let output = run_rsconstruct(project_path, &["build"]);
    assert!(output.status.success());

    assert!(project_path.join("out/rust_single_file/one.elf").exists());
    assert!(project_path.join("out/rust_single_file/two.elf").exists());
}