using System.Reflection;
using System.Text;
using FastEndpoints;
using FastEndpoints.Swagger;
using GB5Shared.Auth.Jwt;
using GB5Shared.Connection;
using GB5Shared.Telemetry;
using GB5Shared.Vault;
using PartnerBLL.Options;
using GB5Shared.DateConverter;
using static GB5Shared.DateConverter.GB5JsonOptions;
using GB5Shared.DTO.Framework.CommonConfig;
using GB5Shared.GB5CommonFunction;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.QueryExecutor;
using GB5Shared.Validation;
using Microsoft.AspNetCore.Server.Kestrel.Core;
using Microsoft.Extensions.Caching.Hybrid;
using OpenTelemetry;
using OpenTelemetry.Resources;
using OpenTelemetry.Trace;
using PartnerSL.Services;

// -------------------------
// Bootstrap
// -------------------------
var builder = WebApplication.CreateBuilder(args);

// ── Port from config — change "AppPort" in appsettings.json to use any port ──
var appPort = builder.Configuration.GetValue<int>("AppPort");
builder.WebHost.UseUrls($"http://0.0.0.0:{appPort}");

// -------------------------
// Console Encoding
// -------------------------
Console.OutputEncoding = Encoding.UTF8;

// -------------------------
// Dapr & Controllers Setup
// -------------------------
builder.Services.AddDaprClient();

builder.Services.AddControllers()
    .AddDapr()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.PropertyNamingPolicy = null;
        options.JsonSerializerOptions.DictionaryKeyPolicy = null;
        options.JsonSerializerOptions.AddGB5Converters();
    });

// -------------------------
// Caching
// -------------------------
#pragma warning disable EXTEXP0018
builder.Services.AddHybridCache(options =>
{
    options.DefaultEntryOptions = new HybridCacheEntryOptions();
    options.DisableCompression = false;
});
#pragma warning restore EXTEXP0018

builder.Services.AddMemoryCache();
builder.Services.AddDistributedMemoryCache();

// -------------------------
// CORS Policy
// -------------------------

// -------------------------
// Application Services
// -------------------------
builder.Services.AddScoped<IQueryExecutor, QueryExecutor>();
builder.Services.AddScoped<IApplicationConnection, ApplicationConnection>();
builder.Services.AddScoped<IGB5CommonFunction, GB5CommonFunction>();
builder.Services.AddScoped<IValidation, Validation>();
builder.Services.AddScoped<AutoNumber>();
builder.Services.AddScoped<GB5Shared.CriteriaConfig.ICriteriaConfigFastSave, GB5Shared.CriteriaConfig.CriteriaConfigFastSave>();

builder.Services.Configure<Gb5SystemDTO>(
    builder.Configuration.GetSection("Gb5SystemDTO"));

// Vault + shared JWT issuer — backs the new Partner M2M client-credentials token endpoint
// (GetPartnerToken). Partner only ISSUES tokens here; it never validates one, so no
// AddAuthentication/AddJwtBearer scheme is needed in this host — Entitlement is the validator.
builder.Services.AddGB5Vault(builder.Configuration);
builder.Services.AddGB5JwtIssuer();
builder.Services.Configure<PartnerM2MJwtOptions>(builder.Configuration.GetSection(PartnerM2MJwtOptions.SectionName));

builder.Services.Configure<KestrelServerOptions>(options =>
{
    options.AllowSynchronousIO = true;
});

// -------------------------
// OpenTelemetry
// -------------------------
builder.Services.AddGB5Telemetry(builder.Configuration, "GB5-PARTNER");

// -------------------------
// Domain Cache (Singleton + IHostedService)
// -------------------------
builder.Services.AddSingleton<DomainCacheService>();
builder.Services.AddHostedService(sp => sp.GetRequiredService<DomainCacheService>());
builder.Services.AddSingleton<GB5Shared.Cache.IDomainCacheInvalidator>(sp => sp.GetRequiredService<DomainCacheService>());

// -------------------------
// Assembly Scan for DI
// -------------------------
var partnerBLLAssembly = Assembly.Load("PartnerBLL");
var partnerDALAssembly = Assembly.Load("PartnerDAL");

builder.Services.Scan(scan => scan
    .FromAssemblies(partnerBLLAssembly, partnerDALAssembly)
    .AddClasses(c => c.Where(t => !t.IsAbstract && !t.IsInterface
                && (t.Namespace == null || !t.Namespace.Contains(".DTO"))))
    .AsImplementedInterfaces()
    .WithScopedLifetime());

// -------------------------
// FastEndpoints
// -------------------------
var endpointAssemblies = new[]
{
    Assembly.Load("PartnerSL"),
    Assembly.Load("PartnerBLL"),
    Assembly.Load("PartnerDAL"),
    Assembly.Load("GB5Shared")
};

builder.Services.AddFastEndpoints(o =>
{
    o.Assemblies = endpointAssemblies;
});

// -------------------------
// Swagger
// -------------------------
builder.Services.SwaggerDocument(o =>
{
    o.DocumentSettings = s =>
    {
        s.Title = "GB5 Partner API";
        s.Version = "v1";
        s.Description = "GB5 Partner Service — White-Label Engine";
    };

    o.EnableJWTBearerAuth = false;
    o.ShortSchemaNames = true;
});

// -------------------------
// Build App
// -------------------------
var app = builder.Build();

// -------------------------
// Middleware
// -------------------------

app.UseMiddleware<GB5Shared.Telemetry.Middleware.RequestTracingMiddleware>();
app.UseMiddleware<PartnerSL.Middleware.ApiKeyAuthMiddleware>();
app.UseMiddleware<GB5Shared.Middleware.SessionHeartbeatMiddleware>();

app.UseFastEndpoints(c =>
{
    c.Serializer.Options.PropertyNamingPolicy = null;
    c.Serializer.Options.DictionaryKeyPolicy = null;
    c.Serializer.Options.AddGB5Converters();
});

app.MapControllers();

// -------------------------
// Swagger UI
// -------------------------
app.UseOpenApi();

app.UseSwaggerUi(o =>
{
    o.Path = "/GB5Documentation";
    o.DocumentPath = "/swagger/{documentName}/swagger.json";
    o.TransformToExternalPath = (internalUiRoute, _) => "/partner" + internalUiRoute;
});

// -------------------------
// Test Endpoint
// -------------------------
app.MapGet("/", () => "Hello from GB5Partner (.NET 9)");

// -------------------------
// HTTPS & Authorization
// -------------------------
app.UseAuthorization();

// -------------------------
// Run the Application
// -------------------------
app.Run();