using Microsoft.Extensions.DependencyInjection.Extensions;
using minattest_app_host.OpenApi;
using Serilog;
using Yarp.ReverseProxy.Forwarder;

Log.Logger = new LoggerConfiguration()
    .Enrich.FromLogContext()
    .WriteTo.Console()
    .CreateBootstrapLogger();

try
{
    Log.Information("Starting minattest app host");

    var builder = WebApplication.CreateBuilder(args);
    builder.Host.UseSerilog((context, services, configuration) => configuration
        .ReadFrom.Configuration(context.Configuration)
        .ReadFrom.Services(services));

    builder.Services.AddReverseProxy()
    .LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"));

    builder.Services.AddEndpointsApiExplorer();
    builder.Services.AddSwagger();
    builder.Services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();

    var app = builder.Build();
    app.UseSerilogRequestLogging();

    app.Use((context, next) =>
    {
        context.Request.Scheme = "https";
        return next(context);
    });

    app.UseAppSwagger();
    app.UseHttpsRedirection();
    
    app.MapReverseProxy(configure => configure.Use(async (context, next) =>
    {
        await next();
        var errorFeature = context.GetForwarderErrorFeature();
        if (errorFeature is not null && errorFeature.Error != ForwarderError.None && errorFeature.Exception != null)
            throw errorFeature.Exception;
    }));

    app.Run();
}
catch (Exception ex)
{
    Log.Fatal(ex, "Application terminated unexpectedly");
}
finally
{
    Log.CloseAndFlush();
}