/// AI-lib architecture progress report example
use ai_lib::{AiClient, Provider};

fn main() {
    println!("🏗️  AI-lib Architecture Progress Report");
    println!("=====================================");

    println!("\n📊 Currently Supported Providers:");

    let providers = vec![
        (
            "Groq",
            "Config-driven",
            "✅ Fully working",
            "GenericAdapter",
        ),
        (
            "DeepSeek",
            "Config-driven",
            "✅ Connection OK",
            "GenericAdapter",
        ),
        (
            "Anthropic",
            "Config-driven",
            "🔧 Configured",
            "GenericAdapter + Special Auth",
        ),
        (
            "OpenAI",
            "Independent Adapter",
            "🔧 Implemented",
            "OpenAiAdapter",
        ),
    ];

    for (name, type_, status, impl_) in providers {
        println!(
            "   • {:<12} | {:<8} | {:<12} | {}",
            name, type_, status, impl_
        );
    }

    println!("\n🎯 Architecture Advantages Validation:");

    // Test client creation
    let test_cases = vec![
        (Provider::Groq, "Groq"),
        (Provider::DeepSeek, "DeepSeek"),
        (Provider::Anthropic, "Anthropic"),
        (Provider::OpenAI, "OpenAI"),
    ];

    for (provider, name) in test_cases {
        match AiClient::new(provider) {
            Ok(_) => println!("   ✅ {} client created successfully", name),
            Err(e) => {
                if e.to_string().contains("environment variable not set") {
                    println!("   ⚠️  {} requires API key", name);
                } else {
                    println!("   ❌ {} configuration error: {}", name, e);
                }
            }
        }
    }

    println!("\n📈 Code Volume Comparison:");
    println!("   Traditional approach: ~250 lines per provider");
    println!("   Config-driven approach: ~15 lines per provider");
    println!("   Savings: 94% code reduction");

    println!("\n🔄 Progressive Architecture Evolution:");
    println!("   ✅ Phase 1: GenericAdapter + ProviderConfig foundation");
    println!("   ✅ Phase 2: Multi-provider config-driven validation (Groq, DeepSeek, Anthropic)");
    println!(
        "   🔄 Phase 3: Hybrid architecture (config-driven + independent adapters coexistence)"
    );
    println!("   📋 Phase 4: Configuration file support (JSON/YAML dynamic config)");

    println!("\n🚀 Next Steps:");
    println!("   1. Implement Google Gemini independent adapter (validate hybrid architecture)");
    println!("   2. Add more config-driven providers (Together AI, Cohere)");
    println!("   3. Implement configuration file loading (runtime dynamic config)");
    println!("   4. Optimize error handling and retry mechanisms");

    println!("\n💡 Architecture Value:");
    println!("   • 🔧 Flexibility: Support different authentication methods and endpoints");
    println!("   • ⚡ Scalability: Extremely low cost for adding new providers");
    println!("   • 🔄 Reusability: Shared SSE parsing and HTTP logic");
    println!("   • 🎯 Unity: All providers use the same interface");
}
