using System;
using System.Net.Http;
using FinlyticCore.Database;
using FinlyticCore.Services;
using FinlyticCore.Services.TradeRepublic;
using FinlyticCore.Services.Yahoo;
using FinlyticTechnicals.Database;
using FinlyticTechnicals.Patterns;
using FinlyticTechnicals.Patterns.Candlesticks;
using FinlyticTechnicals.Patterns.ChartPatterns;
using FinlyticTechnicals.Patterns.SmartMoney;
using FinlyticTechnicals.Services;
using FinlyticTechnicals.Strategies;
using FinlyticTechnicals.Util;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

var builder = Host.CreateApplicationBuilder(args);

// 1. Register DbContext
builder.Services.AddDbContext<TechnicalAnalysisDbContext>(options =>
    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection")));
builder.Services.AddScoped<ISettingsDbContext>(sp => sp.GetRequiredService<TechnicalAnalysisDbContext>());

// 2. Register Core Services & Logger
builder.Services.AddSingleton<ISettingsService, SettingsService>();
builder.Services.AddSingleton(typeof(IFinlyticLogger<>), typeof(FinlyticLogger<>));

// 3. Register HTTP & Market Data Clients
builder.Services.AddHttpClient<IYahooMarketDataScraper, YahooMarketDataScraper>()
    .ConfigurePrimaryHttpMessageHandler(() => new HttpClientHandler
    {
        UseCookies = true,
        CookieContainer = new System.Net.CookieContainer()
    });
builder.Services.AddSingleton<YahooFinanceClient>();
builder.Services.AddTransient<IYahooMarketDataScraper, YahooMarketDataScraper>();

// 4. Register Trade Republic Ingestion & Real-Time Services
builder.Services.AddSingleton<TradeRepublicClient>();
builder.Services.AddSingleton<ITradeRepublicService, TradeRepublicService>();
builder.Services.AddSingleton<ITradeRepublicIngestionService, TradeRepublicIngestionService>();
builder.Services.AddSingleton<IMultiTimeframeCandleAggregator, MultiTimeframeCandleAggregator>();

// 5. Register Pattern Detectors
builder.Services.AddSingleton<IPatternDetector, HammerShootingStarDetector>();
builder.Services.AddSingleton<IPatternDetector, EngulfingPatternDetector>();
builder.Services.AddSingleton<IPatternDetector, MorningEveningStarDetector>();
builder.Services.AddSingleton<IPatternDetector, DojiPatternDetector>();
builder.Services.AddSingleton<IPatternDetector, DoubleTopBottomDetector>();
builder.Services.AddSingleton<IPatternDetector, HeadAndShouldersDetector>();
builder.Services.AddSingleton<IPatternDetector, TrianglePatternDetector>();
builder.Services.AddSingleton<IPatternDetector, FairValueGapDetector>();
builder.Services.AddSingleton<IPatternDetector, LiquiditySweepDetector>();
builder.Services.AddSingleton<IPatternDetector, ChochBosDetector>();
builder.Services.AddSingleton<IPatternDetector, OrderBlockDetector>();
builder.Services.AddSingleton<IPatternDetector, DoubleTopDetector>();
builder.Services.AddSingleton<IPatternDetector, InverseHeadAndShouldersDetector>();
builder.Services.AddSingleton<IPatternDetector, DescendingTriangleDetector>();
builder.Services.AddSingleton<IPatternDetector, BearishOrderBlockDetector>();

// 6. Register Strategies
builder.Services.AddSingleton<ITechnicalStrategy, TrendPullbackFvgStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, VolatilitySqueezeStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, SmcLiquiditySweepStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, MeanReversionStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, SuperTrendMultiTfStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, MacdCrossoverStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, MovingAverageCrossoverStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, RsiReversalStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, DonchianBreakoutStrategy>();
builder.Services.AddSingleton<ITechnicalStrategy, VwapBounceStrategy>();

// 7. Register Technical Scoring Engine & Universe Manager
// builder.Services.AddSingleton<ITechnicalScoringEngine, TechnicalScoringEngine>(); // V1 Fallback
builder.Services.AddSingleton<ITechnicalScoringEngine, TechnicalScoringEngineV2>(); // V2 Bidirectional Active
builder.Services.AddSingleton<ITechnicalUniverseManager, TechnicalUniverseManager>();

// 8. Register MQTT Client & RPC Bridge
builder.Services.AddSingleton<TAMqttClient>();
builder.Services.AddSingleton<ITAMqttRpcClient>(sp => sp.GetRequiredService<TAMqttClient>());
builder.Services.AddHostedService(sp => sp.GetRequiredService<TAMqttClient>());

// 9. Register Technical Scanner Background Service
builder.Services.AddHostedService<TechnicalScannerBackgroundService>();


var host = builder.Build();

// Run startup database migrations
using (var scope = host.Services.CreateScope())
{
    try
    {
        var context = scope.ServiceProvider.GetRequiredService<TechnicalAnalysisDbContext>();
        var connStr = builder.Configuration.GetConnectionString("DefaultConnection") ?? "";
        await context.MigrateWithBootstrapAsync(connStr);
        Console.WriteLine("Database migrations successfully executed for FinlyticTechnicals.");

        // The monitored-universe table backs TechnicalUniverseManager but is deliberately NOT meant to survive
        // a restart: it is fully rebuilt within minutes from RefreshFavoritesAsync/RefreshDiscoveryAsync and
        // fresh sentiment-spike events, and a stale row whose TTL never got swept because the process was down
        // is worse than starting from an empty universe.
        await context.MonitoredUniverseAssets.ExecuteDeleteAsync();
        Console.WriteLine("Monitored universe table cleared for fresh start.");
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Migration error on startup: {ex.Message}");
    }
}

await host.RunAsync();