pmat 3.16.0

#[tokio::test]
async fn test_handle_query_empty_project() {
    let temp_dir = TempDir::new().unwrap();
    let project_path = temp_dir.path().to_path_buf();

    // Create empty project
    std::fs::create_dir_all(project_path.join("src")).unwrap();
    std::fs::write(project_path.join("src/main.rs"), "").unwrap();

    let result = handle_query(
        "test".to_string(),
        10,
        None,
        None,
        None,
        None,
        project_path,
        QueryOutputFormat::Text,
        false,
        false,
        false,
        None,   // rank_by
        None,   // min_pagerank
        vec![], // include_project
        false,  // churn
        false,  // duplicates
        false,  // entropy
        false,  // faults
        false,  // coverage
        false,  // uncovered_only
        None,   // coverage_diff
        None,   // coverage_file
        false,  // coverage_gaps
        false,  // include_excluded
        None,   // definition_type
        false,  // code
        false,  // git_history
        false,  // regex
        false,  // literal
        false,  // raw
        false,  // case_sensitive
        false,  // ignore_case
        Vec::new(),   // exclude
        Vec::new(),   // exclude_file
        false,  // files_with_matches
        false,  // count
        None,   // after_context
        None,   // before_context
        None,   // context_lines
        false,  // ptx_flow
        false,  // ptx_diagnostics
        false,  // suggest_rename
        false,  // apply
        false,  // docs
        false,  // docs_only
        false,  // extract_candidates
        500,    // max_module_lines
    )
    .await;

    // Should not error, just find nothing
    assert!(result.is_ok());
}

#[tokio::test]
async fn test_handle_query_with_functions() {
    let temp_dir = TempDir::new().unwrap();
    let project_path = temp_dir.path().to_path_buf();

    // Create project with a function
    std::fs::create_dir_all(project_path.join("src")).unwrap();
    std::fs::write(
        project_path.join("src/main.rs"),
        r#"
/// Handle errors in the API layer
fn handle_api_error(err: String) -> String {
    format!("Error: {}", err)
}

fn main() {
    println!("Hello");
}
"#,
    )
    .unwrap();

    let result = handle_query(
        "error handling".to_string(),
        10,
        None,
        None,
        None,
        None,
        project_path,
        QueryOutputFormat::Json,
        false,
        true, // Force rebuild
        false,
        None,   // rank_by
        None,   // min_pagerank
        vec![], // include_project
        false,  // churn
        false,  // duplicates
        false,  // entropy
        false,  // faults
        false,  // coverage
        false,  // uncovered_only
        None,   // coverage_diff
        None,   // coverage_file
        false,  // coverage_gaps
        false,  // include_excluded
        None,   // definition_type
        false,  // code
        false,  // git_history
        false,  // regex
        false,  // literal
        false,  // raw
        false,  // case_sensitive
        false,  // ignore_case
        Vec::new(),   // exclude
        Vec::new(),   // exclude_file
        false,  // files_with_matches
        false,  // count
        None,   // after_context
        None,   // before_context
        None,   // context_lines
        false,  // ptx_flow
        false,  // ptx_diagnostics
        false,  // suggest_rename
        false,  // apply
        false,  // docs
        false,  // docs_only
        false,  // extract_candidates
        500,    // max_module_lines
    )
    .await;

    assert!(result.is_ok());
}

#[test]
fn test_classify_commit_type() {
    assert_eq!(classify_commit_type("fix: null pointer").1, "[fix]");
    assert_eq!(classify_commit_type("feat: add auth").1, "[feat]");
    assert_eq!(
        classify_commit_type("refactor: simplify parser").1,
        "[refactor]"
    );
    assert_eq!(classify_commit_type("docs: update README").1, "[docs]");
    assert_eq!(classify_commit_type("chore: bump deps").1, "[chore]");
    assert_eq!(classify_commit_type("random commit").1, "");
    assert_eq!(classify_commit_type("Merge branch main").1, "[merge]");
}

#[test]
fn test_format_timestamp() {
    // 2024-01-01 00:00:00 UTC = 1704067200
    let ts = 1704067200_i64;
    let formatted = format_timestamp(ts);
    // Should produce something reasonable (approximate date)
    assert!(formatted.starts_with("2024"));
}

#[test]
fn test_compute_decay_score() {
    let hotspot = FileHotspot {
        commit_count: 10,
        fix_count: 5,
        annotation: FileAnnotation {
            tdg_grade: Some("D".to_string()),
            dead_code_pct: 10.0,
            ..Default::default()
        },
        ..Default::default()
    };

    let decay = compute_decay_score(&hotspot, 100);
    assert!(decay > 0.0);
    assert!(decay <= 1.0);

    // Grade A with no fixes should have low decay
    let healthy = FileHotspot {
        commit_count: 5,
        fix_count: 0,
        annotation: FileAnnotation {
            tdg_grade: Some("A".to_string()),
            ..Default::default()
        },
        ..Default::default()
    };
    let healthy_decay = compute_decay_score(&healthy, 100);
    assert!(
        healthy_decay < decay,
        "Healthy file should have lower decay"
    );
}

#[test]
fn test_compute_impact_risk() {
    let hotspot = FileHotspot {
        commit_count: 50,
        annotation: FileAnnotation {
            max_pagerank: Some(0.01),
            fault_count: 3,
            ..Default::default()
        },
        ..Default::default()
    };

    let risk = compute_impact_risk(&hotspot, 100);
    assert!(risk > 0.0);

    // Zero pagerank = zero risk
    let low_risk = FileHotspot {
        commit_count: 50,
        annotation: FileAnnotation {
            max_pagerank: Some(0.0),
            ..Default::default()
        },
        ..Default::default()
    };
    assert_eq!(compute_impact_risk(&low_risk, 100), 0.0);
}

#[test]
fn test_parse_git_log_with_issue_refs() {
    let log = "PMAT_START\nH:abc1234567890123456789012345678901234567\nS:feat: add auth (PMAT-472)\nN:noah\nE:noah@test.com\nT:1704067200\nPMAT_FILES\nM\tsrc/main.rs";
    let commits = parse_git_log(log);
    assert_eq!(commits.len(), 1);
    assert!(
        commits[0].issue_refs.contains(&"PMAT-472".to_string())
            || commits[0].issue_refs.contains(&"(PMAT-472)".to_string())
    );
    assert!(commits[0].is_feat);
}

#[test]
fn test_file_annotation_default() {
    let annot = FileAnnotation::default();
    assert_eq!(annot.tdg_grade, None);
    assert_eq!(annot.function_count, 0);
    assert_eq!(annot.dead_code_count, 0);
    assert_eq!(annot.fault_count, 0);
}