chkpt-core 0.2.0

#[allow(unused_imports)]
use chkpt_core::scanner::{scan_workspace, ScannedFile};
use std::fs;
use tempfile::TempDir;

#[test]
fn test_scan_basic_files() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.txt"), "hello").unwrap();
    fs::write(dir.path().join("b.txt"), "world").unwrap();
    fs::create_dir_all(dir.path().join("src")).unwrap();
    fs::write(dir.path().join("src/main.rs"), "fn main(){}").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    assert_eq!(files.len(), 3);
}

#[test]
fn test_scan_respects_chkptignore() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.txt"), "keep").unwrap();
    fs::write(dir.path().join("b.log"), "ignore").unwrap();
    fs::create_dir_all(dir.path().join("build")).unwrap();
    fs::write(dir.path().join("build/out.o"), "ignore").unwrap();
    fs::write(dir.path().join(".chkptignore"), "*.log\nbuild/\n").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    let paths: Vec<&str> = files.iter().map(|f| f.relative_path.as_str()).collect();
    assert!(paths.contains(&"a.txt"));
    assert!(!paths.contains(&"b.log"));
    assert!(!paths.contains(&"build/out.o"));
    // .chkptignore itself should be included
    assert!(paths.contains(&".chkptignore"));
}

#[test]
fn test_scan_excludes_chkpt_dir() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.txt"), "data").unwrap();
    fs::create_dir_all(dir.path().join(".chkpt")).unwrap();
    fs::write(dir.path().join(".chkpt/config"), "x").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    let paths: Vec<&str> = files.iter().map(|f| f.relative_path.as_str()).collect();
    assert!(paths.contains(&"a.txt"));
    assert!(!paths.iter().any(|p| p.starts_with(".chkpt")));
}

#[test]
fn test_scan_excludes_git_dir_by_default() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.txt"), "data").unwrap();
    fs::create_dir_all(dir.path().join(".git")).unwrap();
    fs::write(dir.path().join(".git/HEAD"), "ref").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    assert!(!files.iter().any(|f| f.relative_path.starts_with(".git")));
}

#[test]
fn test_scan_excludes_node_modules_by_default() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("index.js"), "code").unwrap();
    fs::create_dir_all(dir.path().join("node_modules/pkg")).unwrap();
    fs::write(dir.path().join("node_modules/pkg/index.js"), "dep").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    assert!(!files
        .iter()
        .any(|f| f.relative_path.starts_with("node_modules")));
}

#[test]
fn test_scan_excludes_nested_dependency_directories_by_default() {
    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("packages/app/node_modules/pkg")).unwrap();
    fs::create_dir_all(dir.path().join("services/api/.venv/lib")).unwrap();
    fs::create_dir_all(dir.path().join("crates/core/target/debug")).unwrap();
    fs::create_dir_all(dir.path().join("src")).unwrap();

    fs::write(
        dir.path().join("packages/app/node_modules/pkg/index.js"),
        "dep",
    )
    .unwrap();
    fs::write(dir.path().join("services/api/.venv/lib/site.py"), "dep").unwrap();
    fs::write(dir.path().join("crates/core/target/debug/app"), "artifact").unwrap();
    fs::write(dir.path().join("src/targeting.rs"), "pub fn targeting() {}").unwrap();
    fs::write(dir.path().join("src/venv_config.rs"), "pub fn cfg() {}").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    let paths: Vec<&str> = files.iter().map(|f| f.relative_path.as_str()).collect();

    assert!(!paths
        .iter()
        .any(|p| p.starts_with("packages/app/node_modules/")));
    assert!(!paths.iter().any(|p| p.starts_with("services/api/.venv/")));
    assert!(!paths.iter().any(|p| p.starts_with("crates/core/target/")));
    assert!(paths.contains(&"src/targeting.rs"));
    assert!(paths.contains(&"src/venv_config.rs"));
}

#[test]
fn test_scanned_file_has_metadata() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("test.txt"), "content").unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    assert_eq!(files.len(), 1);
    assert_eq!(files[0].relative_path, "test.txt");
    assert_eq!(files[0].size, 7);
    assert!(files[0].mtime_secs > 0);
}

#[test]
fn test_parallel_walk_matches_scan_workspace() {
    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("src/nested")).unwrap();
    fs::write(dir.path().join("a.txt"), "hello").unwrap();
    fs::write(dir.path().join("src/nested/main.rs"), "fn main(){}").unwrap();
    fs::write(dir.path().join(".chkptignore"), "*.tmp\n").unwrap();
    fs::write(dir.path().join("skip.tmp"), "ignore me").unwrap();

    let standard = scan_workspace(dir.path(), None).unwrap();
    let parallel = chkpt_core::scanner::walker::walk_parallel(dir.path(), None, false).unwrap();

    let standard_paths: Vec<_> = standard.iter().map(|f| f.relative_path.clone()).collect();
    let parallel_paths: Vec<_> = parallel.iter().map(|f| f.relative_path.clone()).collect();

    assert_eq!(parallel_paths, standard_paths);
}

#[test]
fn test_parallel_scan_entrypoint_matches_sequential_walk() {
    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("src/nested")).unwrap();
    fs::write(dir.path().join("a.txt"), "hello").unwrap();
    fs::write(dir.path().join("src/nested/main.rs"), "fn main(){}").unwrap();
    fs::write(dir.path().join(".chkptignore"), "*.tmp\n").unwrap();
    fs::write(dir.path().join("skip.tmp"), "ignore me").unwrap();

    let sequential = chkpt_core::scanner::walker::walk(dir.path(), None, false).unwrap();
    let parallel = chkpt_core::scanner::scan_workspace_parallel(dir.path(), None).unwrap();

    let sequential_paths: Vec<_> = sequential.iter().map(|f| f.relative_path.clone()).collect();
    let parallel_paths: Vec<_> = parallel.iter().map(|f| f.relative_path.clone()).collect();

    assert_eq!(parallel_paths, sequential_paths);
}

#[test]
fn test_scan_includes_deps_when_flag_set() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("index.js"), "code").unwrap();
    fs::create_dir_all(dir.path().join("node_modules/pkg")).unwrap();
    fs::write(dir.path().join("node_modules/pkg/index.js"), "dep").unwrap();
    fs::create_dir_all(dir.path().join(".venv/lib")).unwrap();
    fs::write(dir.path().join(".venv/lib/site.py"), "dep").unwrap();

    let files = chkpt_core::scanner::scan_workspace_with_options(dir.path(), None, true).unwrap();
    let paths: Vec<&str> = files.iter().map(|f| f.relative_path.as_str()).collect();

    assert!(paths.iter().any(|p| p.starts_with("node_modules/")));
    assert!(paths.iter().any(|p| p.starts_with(".venv/")));
    assert!(paths.contains(&"index.js"));
}

#[test]
fn test_scan_still_excludes_git_and_chkpt_with_include_deps() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.txt"), "data").unwrap();
    fs::create_dir_all(dir.path().join(".git")).unwrap();
    fs::write(dir.path().join(".git/HEAD"), "ref").unwrap();
    fs::create_dir_all(dir.path().join(".chkpt")).unwrap();
    fs::write(dir.path().join(".chkpt/config"), "x").unwrap();
    fs::create_dir_all(dir.path().join("target/debug")).unwrap();
    fs::write(dir.path().join("target/debug/app"), "bin").unwrap();

    let files = chkpt_core::scanner::scan_workspace_with_options(dir.path(), None, true).unwrap();
    let paths: Vec<&str> = files.iter().map(|f| f.relative_path.as_str()).collect();

    assert!(!paths.iter().any(|p| p.starts_with(".git")));
    assert!(!paths.iter().any(|p| p.starts_with(".chkpt")));
    assert!(!paths.iter().any(|p| p.starts_with("target")));
    assert!(paths.contains(&"a.txt"));
}

#[cfg(unix)]
#[test]
fn test_scan_includes_symlinks_without_following_them() {
    use std::os::unix::fs::symlink;

    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("real")).unwrap();
    fs::write(dir.path().join("real/file.txt"), "content").unwrap();
    symlink("real/file.txt", dir.path().join("link.txt")).unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    let link = files
        .iter()
        .find(|file| file.relative_path == "link.txt")
        .unwrap();

    assert!(link.is_symlink);
    assert_eq!(link.absolute_path, dir.path().join("link.txt"));
}

#[cfg(unix)]
#[test]
fn test_scan_records_device_for_hardlinks() {
    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("original.txt"), "same").unwrap();
    fs::hard_link(
        dir.path().join("original.txt"),
        dir.path().join("alias.txt"),
    )
    .unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();
    let original = files
        .iter()
        .find(|file| file.relative_path == "original.txt")
        .unwrap();
    let alias = files
        .iter()
        .find(|file| file.relative_path == "alias.txt")
        .unwrap();

    assert_eq!(original.device, alias.device);
    assert_eq!(original.inode, alias.inode);
    assert!(!original.is_symlink);
    assert!(!alias.is_symlink);
}

#[cfg(unix)]
#[test]
fn test_parallel_and_sequential_walk_include_symlinks_consistently() {
    use std::os::unix::fs::symlink;

    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("src")).unwrap();
    fs::write(dir.path().join("src/main.js"), "console.log('ok')").unwrap();
    symlink("src/main.js", dir.path().join("app.js")).unwrap();

    let sequential = chkpt_core::scanner::walker::walk(dir.path(), None, false).unwrap();
    let parallel = chkpt_core::scanner::walker::walk_parallel(dir.path(), None, false).unwrap();

    let sequential_paths: Vec<_> = sequential
        .iter()
        .map(|file| file.relative_path.clone())
        .collect();
    let parallel_paths: Vec<_> = parallel
        .iter()
        .map(|file| file.relative_path.clone())
        .collect();

    assert_eq!(sequential_paths, parallel_paths);
    assert!(sequential
        .iter()
        .any(|file| file.relative_path == "app.js" && file.is_symlink));
}

#[cfg(unix)]
#[test]
fn test_scan_excludes_symlink_named_node_modules_by_default() {
    use std::os::unix::fs::symlink;

    let dir = TempDir::new().unwrap();
    fs::create_dir_all(dir.path().join("vendor/pkg")).unwrap();
    fs::write(dir.path().join("vendor/pkg/index.js"), "module.exports = 1").unwrap();
    symlink("vendor", dir.path().join("node_modules")).unwrap();

    let files = scan_workspace(dir.path(), None).unwrap();

    assert!(!files
        .iter()
        .any(|file| file.relative_path.starts_with("node_modules")));
}