tokf 0.2.21

Config-driven CLI tool that compresses command output before it reaches an LLM context
Documentation 
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#![allow(clippy::unwrap_used, clippy::expect_used, clippy::similar_names)]

use std::fs;
use std::path::PathBuf;

use tokf::config;

/// Helper: stdlib filters directory.
fn stdlib_dir() -> PathBuf {
    PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("filters")
}

// --- discover_all_filters with stdlib ---

#[test]
fn test_discover_git_push_from_stdlib() {
    let dirs = vec![stdlib_dir()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    let git_push = filters
        .iter()
        .find(|f| f.config.command.first() == "git push")
        .expect("git push filter not found");
    assert_eq!(git_push.config.command.first(), "git push");
}

#[test]
fn test_all_stdlib_filters_load() {
    let dirs = vec![stdlib_dir()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    // Check at least the current stdlib count; update floor when adding new filter families.
    assert!(
        filters.len() >= 30,
        "expected at least 30 stdlib filters, got {}",
        filters.len()
    );
}

#[test]
fn test_discover_returns_ok_for_nonexistent_dir() {
    let dirs = vec![PathBuf::from("/no/such/directory/ever")];
    let result = config::discover_all_filters(&dirs);
    assert!(result.is_ok());
    // Embedded stdlib is always included even when search dirs don't exist
    let filters = result.unwrap();
    assert!(
        !filters.is_empty(),
        "expected embedded stdlib filters, got empty result"
    );
}

#[test]
fn test_discover_nonexistent_command_returns_none() {
    let dirs = vec![stdlib_dir()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    let words = ["totally", "nonexistent", "command"];
    let found = filters.iter().any(|f| f.matches(&words).is_some());
    assert!(!found);
}

// --- Embedded stdlib ---

#[test]
fn test_embedded_filters_available_with_empty_dirs() {
    // Embedded stdlib appears even with no search dirs
    let filters = config::discover_all_filters(&[]).unwrap();
    assert!(!filters.is_empty());
    let has_git_push = filters
        .iter()
        .any(|f| f.config.command.first() == "git push");
    assert!(has_git_push, "embedded git push not found");
}

#[test]
fn test_embedded_filter_priority_label_is_builtin() {
    // Embedded filters should report [built-in] priority label
    let filters = config::discover_all_filters(&[]).unwrap();
    let git_push = filters
        .iter()
        .find(|f| f.config.command.first() == "git push")
        .expect("git push not in embedded stdlib");
    assert_eq!(git_push.priority_label(), "built-in");
}

#[test]
fn test_local_filter_shadows_embedded() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    // Write a local override for git push
    fs::write(dir.path().join("push.toml"), r#"command = "git push""#).unwrap();

    let dirs = vec![dir.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();

    // Should appear exactly once (local shadows embedded)
    let push_entries: Vec<_> = filters
        .iter()
        .filter(|f| f.config.command.first() == "git push")
        .collect();
    assert_eq!(push_entries.len(), 1);
    assert_eq!(
        push_entries[0].priority, 0,
        "local filter should have priority 0"
    );
    assert_eq!(push_entries[0].priority_label(), "local");
}

// --- CommandPattern matching ---

#[test]
fn test_single_pattern_match() {
    let dirs = vec![stdlib_dir()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    let git_push = filters
        .iter()
        .find(|f| f.config.command.first() == "git push")
        .unwrap();

    // Exact match
    assert_eq!(git_push.matches(&["git", "push"]), Some(2));
    // With trailing args
    assert_eq!(
        git_push.matches(&["git", "push", "origin", "main"]),
        Some(2)
    );
    // No match
    assert_eq!(git_push.matches(&["git", "status"]), None);
}

#[test]
fn test_multiple_pattern_match() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    fs::write(
        dir.path().join("test-runner.toml"),
        r#"command = ["pnpm test", "npm test"]"#,
    )
    .unwrap();

    let dirs = vec![dir.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    let test_runner = filters
        .iter()
        .find(|f| f.config.command.first() == "pnpm test")
        .unwrap();

    assert_eq!(test_runner.matches(&["pnpm", "test"]), Some(2));
    assert_eq!(test_runner.matches(&["npm", "test"]), Some(2));
    assert_eq!(test_runner.matches(&["yarn", "test"]), None);
}

#[test]
fn test_wildcard_pattern_match() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("npm-run.toml"), r#"command = "npm run *""#).unwrap();

    let dirs = vec![dir.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();
    let npm_run = filters
        .iter()
        .find(|f| f.config.command.first() == "npm run *")
        .unwrap();

    assert_eq!(npm_run.matches(&["npm", "run", "build"]), Some(3));
    assert_eq!(npm_run.matches(&["npm", "run", "test"]), Some(3));
    // Wildcard requires at least one token after "run"
    assert_eq!(npm_run.matches(&["npm", "run"]), None);
}

// --- Priority and dedup ---

#[test]
fn test_priority_first_match_wins() {
    use tempfile::TempDir;

    let dir1 = TempDir::new().unwrap();
    let dir2 = TempDir::new().unwrap();

    // Same command string in both dirs
    fs::write(dir1.path().join("a.toml"), r#"command = "git push""#).unwrap();
    fs::write(dir2.path().join("b.toml"), r#"command = "git push""#).unwrap();

    let dirs = vec![dir1.path().to_path_buf(), dir2.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();

    // Dedup: only one entry for "git push"
    let push_entries: Vec<_> = filters
        .iter()
        .filter(|f| f.config.command.first() == "git push")
        .collect();
    assert_eq!(push_entries.len(), 1);
    assert_eq!(push_entries[0].priority, 0); // from dir1 (priority 0)
}

#[test]
fn test_specificity_ordering() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("a.toml"), r#"command = "git *""#).unwrap();
    fs::write(dir.path().join("b.toml"), r#"command = "git push""#).unwrap();

    let dirs = vec![dir.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();

    // "git push" (specificity 2) before "git *" (specificity 1)
    assert_eq!(filters[0].config.command.first(), "git push");
    assert_eq!(filters[1].config.command.first(), "git *");
}

// --- Nested directory discovery ---

#[test]
fn test_nested_dir_discovery() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    let git_dir = dir.path().join("git");
    fs::create_dir_all(&git_dir).unwrap();
    fs::write(git_dir.join("push.toml"), r#"command = "git push""#).unwrap();
    fs::write(git_dir.join("status.toml"), r#"command = "git status""#).unwrap();

    let dirs = vec![dir.path().to_path_buf()];
    let filters = config::discover_all_filters(&dirs).unwrap();

    let local: Vec<_> = filters.iter().filter(|f| f.priority == 0).collect();
    assert_eq!(local.len(), 2);
    let commands: Vec<&str> = local.iter().map(|f| f.config.command.first()).collect();
    assert!(commands.contains(&"git push"));
    assert!(commands.contains(&"git status"));
}

// --- pattern_matches_prefix ---

#[test]
fn test_pattern_matches_prefix_basic() {
    assert_eq!(
        config::pattern_matches_prefix("git push", &["git", "push"]),
        Some(2)
    );
    assert_eq!(
        config::pattern_matches_prefix("git push", &["git", "push", "origin"]),
        Some(2)
    );
    assert_eq!(
        config::pattern_matches_prefix("git push", &["git", "status"]),
        None
    );
}

#[test]
fn test_pattern_specificity_ordering() {
    assert!(config::pattern_specificity("git push") > config::pattern_specificity("git *"));
    assert!(config::pattern_specificity("git *") == config::pattern_specificity("* push"));
    assert_eq!(config::pattern_specificity("git push"), 2);
    assert_eq!(config::pattern_specificity("git *"), 1);
}

// --- try_load_filter still works ---

#[test]
fn test_try_load_filter_stdlib() {
    let path = stdlib_dir().join("git/push.toml");
    let config = tokf::config::try_load_filter(&path).unwrap().unwrap();
    assert_eq!(config.command.first(), "git push");
}

// --- Basename matching ---

#[test]
fn test_basename_matching() {
    use tempfile::TempDir;

    let dir = TempDir::new().unwrap();
    fs::write(dir.path().join("mvnw.toml"), r#"command = "mvnw clean""#).unwrap();

    let dirs = vec![dir.path().to_path_buf(), stdlib_dir()];
    let filters = config::discover_all_filters(&dirs).unwrap();

    // Test with stdlib git filter
    let git_push = filters
        .iter()
        .find(|f| f.config.command.first() == "git push")
        .unwrap();
    assert_eq!(git_push.matches(&["/usr/bin/git", "push"]), Some(2));
    assert_eq!(git_push.matches(&["./git", "push"]), Some(2));
    assert_eq!(git_push.matches(&["/usr/bin/ls", "-la"]), None); // wrong basename

    // Test with custom mvnw filter
    let mvnw = filters
        .iter()
        .find(|f| f.config.command.first() == "mvnw clean")
        .unwrap();
    assert_eq!(mvnw.matches(&["./mvnw", "clean"]), Some(2));
    assert_eq!(mvnw.matches(&["/home/user/project/mvnw", "clean"]), Some(2));
    assert_eq!(mvnw.matches(&[r"C:\project\mvnw", "clean"]), Some(2)); // Windows path
}