// file: crates/ksp-logging-lib/tests/runtime.rs
// version: 1

//! Integration tests for global initialization, takeover filtering and hot reload.

const LOGGING_TARGET: &str = "ksp-logging-lib";
const OTHER_KSP_TARGET: &str = "ksp-store-lib";
const EXTERNAL_TARGET: &str = "sqlx";

fn logging_trace_enabled() -> bool {
    return tracing::enabled!(target: LOGGING_TARGET, tracing::Level::TRACE);
}

fn other_ksp_info_enabled() -> bool {
    return tracing::enabled!(target: OTHER_KSP_TARGET, tracing::Level::INFO);
}

fn other_ksp_debug_enabled() -> bool {
    return tracing::enabled!(target: OTHER_KSP_TARGET, tracing::Level::DEBUG);
}

fn external_error_enabled() -> bool {
    return tracing::enabled!(target: EXTERNAL_TARGET, tracing::Level::ERROR);
}

#[test]
fn global_runtime_supports_takeover_hot_reload_and_single_initialization() {
    let disabled = ksp_logging_lib::LoggingSettings::new(
        ksp_logging_lib::LogFilterLevel::Info,
        ksp_logging_lib::SpanEvents::Off,
        std::option::Option::None,
        std::option::Option::None,
    );
    let initialize_result = ksp_logging_lib::initialize(&disabled);
    assert!(initialize_result.is_ok());
    let mut guard = match initialize_result {
        std::result::Result::Ok(guard) => guard,
        std::result::Result::Err(_) => return,
    };
    assert!(!logging_trace_enabled());
    assert!(!other_ksp_info_enabled());
    assert!(!external_error_enabled());
    let enabled = ksp_logging_lib::LoggingSettings::new(
        ksp_logging_lib::LogFilterLevel::Info,
        ksp_logging_lib::SpanEvents::NewAndClose,
        std::option::Option::Some(ksp_logging_lib::ConsoleSettings::stderr()),
        std::option::Option::None,
    )
    .with_target_filter(ksp_logging_lib::TargetFilter::new(LOGGING_TARGET, ksp_logging_lib::LogFilterLevel::Trace));
    let reload_result = ksp_logging_lib::reinitialize(&mut guard, &enabled);
    assert!(reload_result.is_ok());
    assert_eq!(guard.settings(), &enabled);
    assert!(logging_trace_enabled());
    assert!(other_ksp_info_enabled());
    assert!(!other_ksp_debug_enabled());
    assert!(!external_error_enabled());
    let unsupported_file = ksp_logging_lib::LoggingSettings::new(
        ksp_logging_lib::LogFilterLevel::Error,
        ksp_logging_lib::SpanEvents::Full,
        std::option::Option::None,
        std::option::Option::Some(ksp_logging_lib::FileSettings::new("logs", "ksp", ksp_logging_lib::FileRotation::Daily)),
    );
    let failed_reload = ksp_logging_lib::reinitialize(&mut guard, &unsupported_file);
    assert!(failed_reload.is_err());
    assert_eq!(guard.settings(), &enabled);
    assert!(logging_trace_enabled());
    assert!(!external_error_enabled());
    let second_initialize = ksp_logging_lib::initialize(&disabled);
    assert!(second_initialize.is_err());
    let error = match second_initialize {
        std::result::Result::Ok(_) => return,
        std::result::Result::Err(error) => error,
    };
    assert_eq!(error.code(), ksp_logging_lib::ERROR_CODE_ALREADY_INITIALIZED);
}