feat(Fundamentals): add fundamentals service

FinlyticFundamentals/Program.cs

@@ -0,0 +1,55 @@
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using FinlyticFundamentals.Database;
+using FinlyticFundamentals.Services;
+using FinlyticFundamentals.Util;
+
+var builder = Host.CreateApplicationBuilder(args);
+
+// Register DB Context
+builder.Services.AddDbContext<FundamentalsDbContext>(options =>
+    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection")));
+
+// Register HTTP Clients
+builder.Services.AddHttpClient<IYahooFinanceScraper, YahooFinanceScraper>()
+    .ConfigurePrimaryHttpMessageHandler(() => new HttpClientHandler
+    {
+        UseCookies = true,
+        CookieContainer = new System.Net.CookieContainer()
+    });
+
+// Register Application Services
+builder.Services.AddSingleton<FinlyticCore.Services.Yahoo.YahooFinanceClient>();
+builder.Services.AddTransient<IYahooFinanceScraper, YahooFinanceScraper>();
+builder.Services.AddSingleton<IFundamentalsDbService, FundamentalsDbService>();
+builder.Services.AddScoped<ISettingsDbService, SettingsDbService>();
+
+// Register MQTT Client (as a Hosted Service)
+builder.Services.AddHostedService<FundamentalsMqttClient>();
+
+var host = builder.Build();
+
+// Run startup database migrations
+using (var scope = host.Services.CreateScope())
+{
+    try
+    {
+        var context = scope.ServiceProvider.GetRequiredService<FundamentalsDbContext>();
+        await context.Database.MigrateAsync();
+        Console.WriteLine("Database migrations successfully executed for FinlyticFundamentals.");
+
+        var settingsService = scope.ServiceProvider.GetRequiredService<ISettingsDbService>();
+        await settingsService.GetSettingsAsync();
+    }
+    catch (Exception ex)
+    {
+        var logger = scope.ServiceProvider.GetRequiredService<ILogger<Program>>();
+        logger.LogError(ex, "[{Channel}] An error occurred during database migration on startup.", "FundamentalsChannel");
+    }
+}
+
+await host.RunAsync();