using FastEndpoints;
using FastEndpoints.Swagger;
using GB5Shared.ValidationCriteria;
using GB5Shared.Connection;
using GB5Shared.DaprCache;
using GB5Shared.DateConverter;
using GB5Shared.DTO.Framework.CommonConfig;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GB5CommonFunction;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.QueryExecutor;
using GB5Shared.ScanIdentifier;
using GB5Shared.Telemetry;
using GB5Shared.Validation;
using Microsoft.AspNetCore.HttpOverrides;
using Microsoft.AspNetCore.ResponseCompression;
using Microsoft.AspNetCore.Server.Kestrel.Core;
using Microsoft.Extensions.Caching.Hybrid;
using Newtonsoft.Json;
using OpenTelemetry;
using OpenTelemetry.Metrics;
using OpenTelemetry.Resources;
using OpenTelemetry.Trace;
using System.Reflection;
using System.Text;
using WiBLL.Common;
using WiSL.EndPoints.Hubs;
using static GB5Shared.DateConverter.GB5JsonOptions;

// -------------------------
// 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
// -------------------------
builder.Services.AddDaprClient();

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

// -------------------------
// Global JSON
// -------------------------
builder.Services.ConfigureHttpJsonOptions(options =>
{
    options.SerializerOptions.PropertyNamingPolicy = null;
    options.SerializerOptions.DictionaryKeyPolicy = null;
    options.SerializerOptions.AddGB5Converters();
});

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

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


// -------------------------
// HTTP Context
// -------------------------
builder.Services.AddHttpContextAccessor();

// Optional Login Header Mapping
builder.Services.AddScoped<LoginDTO>(sp =>
{
    var ctx = sp.GetRequiredService<IHttpContextAccessor>().HttpContext;

    if (ctx != null && ctx.Request.Headers.TryGetValue("Login", out var header))
    {
        return JsonConvert.DeserializeObject<LoginDTO>(header!)!;
    }

    return new LoginDTO();
});

// -------------------------
// Core Services
// -------------------------
builder.Services.AddScoped<IApplicationConnection, ApplicationConnection>();
builder.Services.AddScoped<IQueryExecutor, QueryExecutor>();
builder.Services.AddScoped<IGB5CommonFunction, GB5CommonFunction>();
builder.Services.AddScoped<IValidation, Validation>();
builder.Services.AddScoped<KeyInvalidate>();
builder.Services.AddScoped<AutoNumber>();
builder.Services.AddScoped<GB5Shared.CriteriaConfig.ICriteriaConfigFastSave, GB5Shared.CriteriaConfig.CriteriaConfigFastSave>();
builder.Services.AddScoped<IValidationCriteriaEvaluator,ValidationCriteriaEvaluator>();
builder.Services.AddScoped<IValidationAssignmentDAL,ValidationAssignmentDAL>();

// Generic Scan-Identifier & Label Platform (GB5Shared/ScanIdentifier) — the dispatcher only;
// WI's own IScanTargetResolver implementations (WiEntityResolver/WorkstationResolver/
// EmployeeResolver) are picked up by the broader WIBLL/WIDAL assembly Scan() below already,
// so passing an assembly here would double-register them.
builder.Services.AddScanTargetResolvers();
builder.Services.AddScoped<IScanIdentifierEngine, ScanIdentifierEngine>();
// -------------------------
// SignalR
// -------------------------
builder.Services.AddSignalR();

// WiHub notification service
builder.Services.AddScoped<IWiHubNotifier, WiHubNotifier>();

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

// -------------------------
// Kestrel
// -------------------------
builder.Services.Configure<KestrelServerOptions>(o =>
{
    o.AllowSynchronousIO = true;
});

// -------------------------
// Compression (IMPORTANT)
// -------------------------
builder.Services.AddResponseCompression(o =>
{
    o.EnableForHttps = true;
    o.Providers.Add<GzipCompressionProvider>();
});

// ── OpenTelemetry (Tracing + Metrics) ────────────────────────────────
builder.Services.AddGB5Telemetry(builder.Configuration, "GB5-WI");

// -------------------------
// Assembly Scan
// -------------------------
var wiBLL = Assembly.Load("WIBLL");
var wiDAL = Assembly.Load("WIDAL");

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

// -------------------------
// FastEndpoints
// -------------------------
var endpointAssemblies = new[]
{
    Assembly.Load("WISL"),
    Assembly.Load("WIBLL"),
    Assembly.Load("WIDAL"),
    Assembly.Load("GB5Shared")
};

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

// -------------------------
// Swagger
// -------------------------
builder.Services.SwaggerDocument(o =>
{
    o.DocumentSettings = s =>
    {
        s.Title = "GB5 WorkInstruction API";
        s.Version = "v1";
        s.Description = "GB5 WorkInstruction Microservice";
    };

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

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

// -------------------------
// Middleware Order
// -------------------------

// Reverse proxy (IMPORTANT)
app.UseForwardedHeaders();

// CORS

// Compression
app.UseResponseCompression();

// Dapr
app.UseCloudEvents();

// Session Middleware
app.UseMiddleware<GB5Shared.Telemetry.Middleware.RequestTracingMiddleware>();
app.UseMiddleware<GB5Shared.Middleware.SessionHeartbeatMiddleware>();

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

// Controllers
app.MapControllers();

// Dapr subscribe
app.MapSubscribeHandler();

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

app.UseSwaggerUi(o =>
{
    o.Path = "/GB5Documentation";
    o.DocumentPath = "/swagger/{documentName}/swagger.json";

    // 🔥 THIS IS CRITICAL FOR LIVE
    o.TransformToExternalPath = (internalUiRoute, _) => "/wis" + internalUiRoute;
});

// -------------------------
// Test
// -------------------------
app.MapGet("/", () => "Hello from GB5 WorkInstruction API (.NET 9)");

// -------------------------
app.UseAuthorization();

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