rho-coding-agent 1.18.0

use super::*;

fn test_info() -> RuntimeInfo {
    RuntimeInfo {
        version: "1.9.0".into(),
        provider: "openai".into(),
        model: "gpt-test".into(),
        reasoning: "medium".into(),
        permission_mode: "auto".into(),
        billing: BillingInfo::Metered,
        cost_source: CostSource::ProviderReported,
        cwd: PathBuf::from("/tmp/project"),
        branch: Some("main".into()),
        usage: Some(ModelUsage {
            input_tokens: Some(300_000),
            output_tokens: Some(100_000),
            cache_read_tokens: Some(700_000),
            cache_write_tokens: Some(25_000),
            cost_usd_micros: Some(1_250_000),
            ..ModelUsage::default()
        }),
        latest_usage: Some(ModelUsage {
            input_tokens: Some(100_000),
            cache_read_tokens: Some(900_000),
            ..ModelUsage::default()
        }),
        context_usage: Some(ContextUsage::estimated(25_000, Some(100_000))),
        model_metadata: None,
        tree: None,
        tree_error: None,
        claude_code: "claude code: not signed in - run /login claude-code".into(),
        subagent_total_cost_usd_micros: 0,
    }
}

fn line_text(line: &Line<'_>) -> String {
    line.spans
        .iter()
        .map(|span| span.content.as_ref())
        .collect::<String>()
        .trim_end()
        .to_string()
}

fn rendered_text(info: &RuntimeInfo, width: usize) -> String {
    runtime_info_lines(info, width)
        .iter()
        .map(line_text)
        .collect::<Vec<_>>()
        .join("\n")
}

#[test]
fn runtime_info_groups_model_usage_and_workspace_details() {
    let text = rendered_text(&test_info(), 80);

    assert!(text.contains("rho  v1.9.0"), "{text}");
    assert!(text.contains("Model\n"), "{text}");
    assert!(text.contains("Provider      openai"), "{text}");
    assert!(text.contains("Billing"), "{text}");
    assert!(text.contains("metered API"), "{text}");
    assert!(text.contains("External runtimes"), "{text}");
    assert!(
        text.contains("claude code: not signed in - run /login claude-code"),
        "{text}"
    );
    assert!(text.contains("Session usage\n"), "{text}");
    assert!(
        text.contains("25,000 / 100,000 tokens (25.0%, estimated)"),
        "{text}"
    );
    assert!(text.contains("Input tokens  300,000"), "{text}");
    assert!(text.contains("Cache read    700,000"), "{text}");
    assert!(
        text.contains("Cache hit     90.0% on the latest request"),
        "{text}"
    );
    assert!(text.contains("Cost          $1.250"), "{text}");
    assert!(text.contains("Workspace\n"), "{text}");
    assert!(text.contains("Git branch    main"), "{text}");
}

#[test]
fn runtime_info_splits_main_and_subagent_costs() {
    let mut info = test_info();
    info.subagent_total_cost_usd_micros = 250_000;

    let text = rendered_text(&info, 80);

    assert!(text.contains("Main cost     $1.250"), "{text}");
    assert!(text.contains("Subagent cost $0.250"), "{text}");
    assert!(text.contains("Total cost    $1.500"), "{text}");
    assert!(!text.contains("Cost          $1.250"), "{text}");
}

#[test]
fn runtime_info_shows_subagent_cost_without_parent_usage() {
    let mut info = test_info();
    info.usage = None;
    info.latest_usage = None;
    info.subagent_total_cost_usd_micros = 34_271;

    let text = rendered_text(&info, 80);

    assert!(text.contains("Subagent cost $0.034"), "{text}");
    assert!(!text.contains("No token usage recorded yet."), "{text}");
}

#[test]
fn runtime_info_uses_full_width_contrasting_background() {
    let lines = runtime_info_lines(&test_info(), 80);

    assert!(lines.iter().all(|line| line.width() == 80));
    assert!(lines
        .iter()
        .all(|line| line.spans.iter().all(|span| span.style.bg.is_some())));
    assert!(lines
        .iter()
        .all(|line| line.spans.iter().all(|span| span.style.fg.is_some())));
}

#[test]
fn narrow_runtime_info_stacks_labels_and_values() {
    let lines = runtime_info_lines(&test_info(), 24);
    let text = lines.iter().map(line_text).collect::<Vec<_>>().join("\n");

    assert!(lines.iter().all(|line| line.width() <= 24));
    assert!(text.contains("  Provider\n    openai"), "{text}");
    assert!(text.contains("  Input tokens\n    300,000"), "{text}");
}

#[test]
fn runtime_info_respects_very_narrow_widths() {
    for width in 0..13 {
        let lines = runtime_info_lines(&test_info(), width);
        assert!(
            lines.iter().all(|line| line.width() <= width),
            "line exceeded width {width}"
        );
    }
}

#[test]
fn runtime_info_wraps_long_values_without_losing_details() {
    let lines = runtime_info_lines(&test_info(), 40);
    let text = lines.iter().map(line_text).collect::<Vec<_>>().join("\n");

    assert!(lines.iter().all(|line| line.width() <= 40));
    assert!(text.contains("25.0%, estimated"), "{text}");
    assert!(!text.contains('…'), "{text}");
}

#[test]
fn cache_hit_percentage_uses_latest_request_prompt_tokens() {
    let latest = ModelUsage {
        input_tokens: Some(100_000),
        cache_read_tokens: Some(900_000),
        ..ModelUsage::default()
    };

    assert_eq!(cache_hit_percent(Some(&latest)), Some(90.0));
}

#[test]
fn cache_hit_percentage_includes_latest_cache_writes() {
    let latest = ModelUsage {
        input_tokens: Some(100_000),
        cache_read_tokens: Some(600_000),
        cache_write_tokens: Some(300_000),
        ..ModelUsage::default()
    };

    assert_eq!(cache_hit_percent(Some(&latest)), Some(60.0));
}

#[test]
fn precomputed_estimated_cost_keeps_its_qualifier() {
    let mut info = test_info();
    info.cost_source = CostSource::Estimated;

    let text = rendered_text(&info, 80);

    assert!(text.contains("$1.250 estimated"), "{text}");
}

#[test]
fn subscription_cost_is_labeled_as_api_equivalent() {
    let mut info = test_info();
    info.billing = BillingInfo::Subscription;

    let text = rendered_text(&info, 80);

    assert!(text.contains("$1.250 API equivalent"), "{text}");
}

#[test]
fn format_number_adds_thousands_separators() {
    assert_eq!(format_number(12), "12");
    assert_eq!(format_number(1_234), "1,234");
    assert_eq!(format_number(12_345_678), "12,345,678");
}