//! TuiConfig 的 JSON 编解码与默认值测试。
//! Tests for TuiConfig JSON codec and defaults.

use focus_json::JsonValue;
use focus_tui::config::{ProviderKind, TuiConfig};

#[test]
fn defaults() {
    let cfg = TuiConfig::default();
    assert_eq!(cfg.provider, ProviderKind::Anthropic);
    assert_eq!(cfg.api_key, "");
    assert_eq!(cfg.model, "claude-sonnet-4");
    assert_eq!(cfg.base_url, None);
    assert_eq!(cfg.context_window, None);
    assert!(!cfg.is_ready());
}

#[test]
fn roundtrip_json() {
    let cfg = TuiConfig {
        provider: ProviderKind::OpenAI,
        openai_protocol: focus_providers::openai::OpenAiProtocol::ChatCompletions,
        base_url: Some("https://localhost:8080/v1".into()),
        api_key: "sk-abc".into(),
        model: "gpt-4o".into(),
        context_window: Some(128_000),
    };

    let json = cfg.to_json();
    let restored = TuiConfig::from_json(&json);
    assert_eq!(restored.provider, ProviderKind::OpenAI);
    assert_eq!(
        restored.openai_protocol,
        focus_providers::openai::OpenAiProtocol::ChatCompletions
    );
    assert_eq!(
        restored.base_url.as_deref(),
        Some("https://localhost:8080/v1")
    );
    assert_eq!(restored.api_key, "sk-abc");
    assert_eq!(restored.model, "gpt-4o");
    assert_eq!(restored.context_window, Some(128_000));
    assert!(restored.is_ready());
}

#[test]
fn tolerates_missing_and_invalid_fields() {
    // 空对象 → 全默认。
    // Empty object → all defaults.
    let cfg = TuiConfig::from_json(&JsonValue::obj());
    assert_eq!(cfg.provider, ProviderKind::Anthropic);
    // 非法字段回落默认。
    // Invalid fields fall back to defaults.
    let mut o = JsonValue::obj();
    o.insert("provider", "bogus".into()).ok();
    o.insert("contextWindow", JsonValue::Num(-5.0)).ok();
    o.insert("model", "".into()).ok();
    let cfg = TuiConfig::from_json(&o);
    assert_eq!(cfg.provider, ProviderKind::Anthropic);
    assert_eq!(cfg.context_window, None);
    assert_eq!(cfg.model, "claude-sonnet-4");
}