//! NAC AI估值系统集成测试
//! 
//! 测试所有模块的集成和端到端功能

use nac_ai_valuation::*;
use rust_decimal::Decimal;
use std::collections::HashMap;

/// 创建测试资产
fn create_test_asset() -> Asset {
    Asset::new(
        "test_asset_001".to_string(),
        AssetType::RealEstate,
        "GNACS-RE-001".to_string(),
        "Manhattan Office Building".to_string(),
        Decimal::new(50_000_000, 0),
        "USD".to_string(),
    )
}

/// 创建测试估值结果
fn create_test_valuation_result() -> FinalValuationResult {
    FinalValuationResult {
        valuation_xtzh: Decimal::new(500_000, 0),
        confidence: 0.85,
        model_results: vec![],
        weights: HashMap::new(),
        is_anomaly: false,
        anomaly_report: None,
        divergence_report: "Test divergence report".to_string(),
        requires_human_review: false,
    }
}

#[test]
fn test_asset_creation() {
    let asset = create_test_asset();
    assert_eq!(asset.id, "test_asset_001");
    assert_eq!(asset.asset_type, AssetType::RealEstate);
    assert_eq!(asset.gnacs_code, "GNACS-RE-001");
    assert_eq!(asset.base_valuation_local, Decimal::new(50_000_000, 0));
}

#[test]
fn test_jurisdiction_info() {
    let us_info = Jurisdiction::US.info();
    assert_eq!(us_info.code, Jurisdiction::US);
    assert!(us_info.corporate_tax_rate > 0.0);
    
    let china_info = Jurisdiction::China.info();
    assert_eq!(china_info.code, Jurisdiction::China);
    assert!(china_info.corporate_tax_rate > 0.0);
}

#[test]
fn test_international_agreement_info() {
    let wto_info = InternationalAgreement::WTO.info();
    assert_eq!(wto_info.name, "世界贸易组织");
    
    let rcep_info = InternationalAgreement::RCEP.info();
    assert_eq!(rcep_info.name, "区域全面经济伙伴关系协定");
}

#[test]
fn test_valuation_history() {
    let mut history = ValuationHistory::new(100);
    
    let entry = ValuationHistoryEntry::new(
        "test_asset_001".to_string(),
        Jurisdiction::US,
        InternationalAgreement::WTO,
        create_test_valuation_result(),
    );
    
    history.add(entry.clone()).unwrap();
    
    let entries = history.get_by_asset("test_asset_001");
    assert_eq!(entries.len(), 1);
    assert_eq!(entries[0].asset_id, "test_asset_001");
}

#[test]
fn test_trend_analysis() {
    let entries = vec![
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            FinalValuationResult {
                valuation_xtzh: Decimal::new(1_000_000, 0),
                confidence: 0.85,
                model_results: vec![],
                weights: HashMap::new(),
                is_anomaly: false,
                anomaly_report: None,
                divergence_report: "Test".to_string(),
                requires_human_review: false,
            },
        ),
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            FinalValuationResult {
                valuation_xtzh: Decimal::new(1_100_000, 0),
                confidence: 0.88,
                model_results: vec![],
                weights: HashMap::new(),
                is_anomaly: false,
                anomaly_report: None,
                divergence_report: "Test".to_string(),
                requires_human_review: false,
            },
        ),
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            FinalValuationResult {
                valuation_xtzh: Decimal::new(1_200_000, 0),
                confidence: 0.90,
                model_results: vec![],
                weights: HashMap::new(),
                is_anomaly: false,
                anomaly_report: None,
                divergence_report: "Test".to_string(),
                requires_human_review: false,
            },
        ),
    ];
    
    let trend = TrendAnalyzer::analyze(&entries).unwrap();
    assert_eq!(trend.data_points, 3);
    assert!(trend.change_rate > 0.0); // 上升趋势
    // 趋势可能是Upward或Volatile，取决于标准差
    assert!(trend.trend_direction == TrendDirection::Upward || trend.trend_direction == TrendDirection::Volatile);
}

#[test]
fn test_validation_rules() {
    let validator = ValuationValidator::with_default_rules();
    
    let result = FinalValuationResult {
        valuation_xtzh: Decimal::new(1_000_000, 0),
        confidence: 0.85,
        model_results: vec![],
        weights: HashMap::new(),
        is_anomaly: false,
        anomaly_report: None,
        divergence_report: "Test".to_string(),
        requires_human_review: false,
    };
    
    let validation_results = validator.validate(&result);
    assert!(!validation_results.is_empty());
    
    // 应该通过所有默认验证
    let all_passed = validator.validate_all(&result);
    assert!(all_passed);
}

#[test]
fn test_validation_failure() {
    let validator = ValuationValidator::with_default_rules();
    
    // 置信度过低的结果
    let result = FinalValuationResult {
        valuation_xtzh: Decimal::new(1_000_000, 0),
        confidence: 0.3, // 低于默认的0.5
        model_results: vec![],
        weights: HashMap::new(),
        is_anomaly: false,
        anomaly_report: None,
        divergence_report: "Test".to_string(),
        requires_human_review: false,
    };
    
    let all_passed = validator.validate_all(&result);
    assert!(!all_passed);
}

#[test]
fn test_accuracy_evaluation() {
    let metrics = AccuracyEvaluator::evaluate(
        Decimal::new(1_000_000, 0),
        Decimal::new(1_100_000, 0),
    );
    
    assert_eq!(metrics.estimated, Decimal::new(1_000_000, 0));
    assert_eq!(metrics.actual, Decimal::new(1_100_000, 0));
    assert!(metrics.relative_error > 9.0 && metrics.relative_error < 10.0);
    assert!(metrics.accuracy > 90.0);
}

#[test]
fn test_batch_accuracy_evaluation() {
    let pairs = vec![
        (Decimal::new(1_000_000, 0), Decimal::new(1_100_000, 0)),
        (Decimal::new(2_000_000, 0), Decimal::new(2_050_000, 0)),
        (Decimal::new(3_000_000, 0), Decimal::new(2_900_000, 0)),
    ];
    
    let batch_metrics = AccuracyEvaluator::evaluate_batch(pairs);
    assert_eq!(batch_metrics.total_samples, 3);
    assert!(batch_metrics.avg_accuracy > 90.0);
}

#[test]
fn test_divergence_analysis() {
    use chrono::Utc;
    
    let model_results = vec![
        AIValuationResult {
            provider: AIProvider::ChatGPT,
            valuation_xtzh: Decimal::new(1_000_000, 0),
            confidence: 0.85,
            reasoning: "ChatGPT reasoning".to_string(),
            timestamp: Utc::now(),
        },
        AIValuationResult {
            provider: AIProvider::DeepSeek,
            valuation_xtzh: Decimal::new(1_100_000, 0),
            confidence: 0.88,
            reasoning: "DeepSeek reasoning".to_string(),
            timestamp: Utc::now(),
        },
        AIValuationResult {
            provider: AIProvider::DouBao,
            valuation_xtzh: Decimal::new(1_050_000, 0),
            confidence: 0.82,
            reasoning: "DouBao reasoning".to_string(),
            timestamp: Utc::now(),
        },
    ];
    
    let analysis = DivergenceAnalyzer::analyze(&model_results);
    assert_eq!(analysis.model_count, 3);
    assert_eq!(analysis.min_valuation, Decimal::new(1_000_000, 0));
    assert_eq!(analysis.max_valuation, Decimal::new(1_100_000, 0));
    assert!(analysis.divergence_rate < 15.0);
    assert!(analysis.consistency_score > 85.0);
}

#[test]
fn test_divergence_with_outlier() {
    use chrono::Utc;
    
    let model_results = vec![
        AIValuationResult {
            provider: AIProvider::ChatGPT,
            valuation_xtzh: Decimal::new(1_000_000, 0),
            confidence: 0.85,
            reasoning: "ChatGPT reasoning".to_string(),
            timestamp: Utc::now(),
        },
        AIValuationResult {
            provider: AIProvider::DeepSeek,
            valuation_xtzh: Decimal::new(1_050_000, 0),
            confidence: 0.88,
            reasoning: "DeepSeek reasoning".to_string(),
            timestamp: Utc::now(),
        },
        AIValuationResult {
            provider: AIProvider::DouBao,
            valuation_xtzh: Decimal::new(2_000_000, 0), // 异常值
            confidence: 0.82,
            reasoning: "DouBao reasoning".to_string(),
            timestamp: Utc::now(),
        },
    ];
    
    let analysis = DivergenceAnalyzer::analyze(&model_results);
    assert_eq!(analysis.model_count, 3);
    assert!(analysis.divergence_rate > 50.0);
    assert!(!analysis.outliers.is_empty());
    assert!(analysis.outliers.contains(&AIProvider::DouBao));
}

#[test]
fn test_optimization_suggestions() {
    use chrono::Utc;
    
    let model_results = vec![
        AIValuationResult {
            provider: AIProvider::ChatGPT,
            valuation_xtzh: Decimal::new(1_000_000, 0),
            confidence: 0.85,
            reasoning: "Test".to_string(),
            timestamp: Utc::now(),
        },
        AIValuationResult {
            provider: AIProvider::DeepSeek,
            valuation_xtzh: Decimal::new(2_000_000, 0),
            confidence: 0.88,
            reasoning: "Test".to_string(),
            timestamp: Utc::now(),
        },
    ];
    
    let result = FinalValuationResult {
        valuation_xtzh: Decimal::new(1_500_000, 0),
        confidence: 0.60,
        model_results: model_results.clone(),
        weights: HashMap::new(),
        is_anomaly: false,
        anomaly_report: None,
        divergence_report: "Test".to_string(),
        requires_human_review: false,
    };
    
    let divergence = DivergenceAnalyzer::analyze(&model_results);
    let suggestions = ModelOptimizer::generate_suggestions(&result, &divergence);
    
    assert!(!suggestions.is_empty());
}

#[test]
fn test_cache_operations() {
    let cache = ValuationCache::new(10);
    
    let result = create_test_valuation_result();
    
    // 设置缓存
    cache.set(
        "test_asset_001",
        Jurisdiction::US,
        InternationalAgreement::WTO,
        result.clone(),
    );
    
    // 获取缓存
    let cached = cache.get(
        "test_asset_001",
        Jurisdiction::US,
        InternationalAgreement::WTO,
    );
    
    assert!(cached.is_some());
    assert_eq!(cached.unwrap().valuation_xtzh, result.valuation_xtzh);
    
    // 统计
    let stats = cache.stats();
    assert_eq!(stats.total_entries, 1);
    assert_eq!(stats.total_accesses, 1);
}

#[test]
fn test_cache_expiry() {
    let cache = ValuationCache::new(10);
    
    let result = create_test_valuation_result();
    
    cache.set(
        "test_asset_001",
        Jurisdiction::US,
        InternationalAgreement::WTO,
        result,
    );
    
    // 清除过期缓存（刚设置的不会过期）
    cache.clear_expired();
    
    let stats = cache.stats();
    assert_eq!(stats.total_entries, 1);
    assert_eq!(stats.expired_entries, 0);
}

#[test]
fn test_realtime_data_source() {
    let data_source = RealtimeDataSource::new();
    assert_eq!(data_source.xtzh_price_usd, Decimal::new(100, 0));
    assert!(!data_source.is_stale());
}

#[test]
fn test_final_valuation_result_report() {
    let result = create_test_valuation_result();
    let report = result.generate_report();
    
    assert!(report.contains("NAC AI资产估值报告"));
    assert!(report.contains("500000 XTZH"));
    assert!(report.contains("85.0%"));
}

#[test]
fn test_final_valuation_result_json() {
    let result = create_test_valuation_result();
    let json = result.to_json().unwrap();
    
    assert!(json.contains("valuation_xtzh"));
    assert!(json.contains("confidence"));
    assert!(json.contains("500000"));
}

#[test]
fn test_data_export_json() {
    use std::path::Path;
    
    let entries = vec![
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            create_test_valuation_result(),
        ),
    ];
    
    let path = Path::new("/tmp/test_valuation_export.json");
    let result = DataExporter::export_json(&entries, path);
    assert!(result.is_ok());
    
    // 验证文件存在
    assert!(path.exists());
}

#[test]
fn test_data_export_csv() {
    use std::path::Path;
    
    let entries = vec![
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            create_test_valuation_result(),
        ),
    ];
    
    let path = Path::new("/tmp/test_valuation_export.csv");
    let result = DataExporter::export_csv(&entries, path);
    assert!(result.is_ok());
    
    // 验证文件存在
    assert!(path.exists());
}

#[test]
fn test_data_export_markdown() {
    use std::path::Path;
    
    let entries = vec![
        ValuationHistoryEntry::new(
            "test_asset_001".to_string(),
            Jurisdiction::US,
            InternationalAgreement::WTO,
            create_test_valuation_result(),
        ),
    ];
    
    let trend = TrendAnalyzer::analyze(&entries).unwrap();
    let path = Path::new("/tmp/test_valuation_export.md");
    let result = DataExporter::export_markdown(&entries, &trend, path);
    assert!(result.is_ok());
    
    // 验证文件存在
    assert!(path.exists());
}

#[tokio::test]
#[ignore] // 需要真实的API密钥
async fn test_full_valuation_flow() {
    // 创建估值引擎
    let engine = ValuationEngine::new(
        std::env::var("CHATGPT_API_KEY").unwrap_or("test_key".to_string()),
        std::env::var("DEEPSEEK_API_KEY").unwrap_or("test_key".to_string()),
        std::env::var("DOUBAO_API_KEY").unwrap_or("test_key".to_string()),
        ValuationEngineConfig::default(),
    ).unwrap();
    
    // 创建资产
    let asset = create_test_asset();
    
    // 执行估值
    let result = engine.appraise(
        &asset,
        Jurisdiction::US,
        InternationalAgreement::WTO,
    ).await;
    
    // 验证结果
    if let Ok(result) = result {
        assert!(result.valuation_xtzh > Decimal::ZERO);
        assert!(result.confidence >= 0.0 && result.confidence <= 1.0);
        assert!(!result.model_results.is_empty());
    }
}

#[test]
fn test_all_asset_types() {
    let types = vec![
        AssetType::RealEstate,
        AssetType::Commodity,
        AssetType::FinancialAsset,
        AssetType::DigitalAsset,
        AssetType::IntellectualProperty,
        AssetType::ArtCollectible,
        AssetType::Movable,
        AssetType::Receivable,
        AssetType::Infrastructure,
        AssetType::NaturalResource,
        AssetType::ESGAsset,
        AssetType::Other,
    ];
    
    assert_eq!(types.len(), 12);
}

#[test]
fn test_all_jurisdictions() {
    let jurisdictions = vec![
        Jurisdiction::US,
        Jurisdiction::EU,
        Jurisdiction::China,
        Jurisdiction::HongKong,
        Jurisdiction::SG,
        Jurisdiction::UK,
        Jurisdiction::JP,
        Jurisdiction::ME,
    ];
    
    assert_eq!(jurisdictions.len(), 8);
    
    // 验证每个辖区都有有效信息
    for jurisdiction in jurisdictions {
        let info = jurisdiction.info();
        assert!(info.corporate_tax_rate >= 0.0);
        assert!(info.corporate_tax_rate >= 0.0);
    }
}

#[test]
fn test_all_agreements() {
    let agreements = vec![
        InternationalAgreement::EU,
        InternationalAgreement::WTO,
        InternationalAgreement::SCO,
        InternationalAgreement::RCEP,
        InternationalAgreement::CPTPP,
        InternationalAgreement::USMCA,
        InternationalAgreement::AfCFTA,
        InternationalAgreement::None,
    ];
    
    assert_eq!(agreements.len(), 8);
    
    // 验证每个协定都有有效信息
    for agreement in agreements {
        let info = agreement.info();
        assert!(!info.name.is_empty());
    }
}