using System.Text.Json.Serialization;
using Extensions.Hosting.AsyncInitialization;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.HttpOverrides;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi;
using Scalar.AspNetCore;
using Tnsu.ApprovalRoute.Api.Auth;
using Tnsu.ApprovalRoute.Api.Filters;
using Tnsu.ApprovalRoute.Application;
using Tnsu.ApprovalRoute.Application.Common.Interfaces;
using Tnsu.ApprovalRoute.Infrastructure;

const string CorsPolicyName = "Frontend";

var builder = WebApplication.CreateBuilder(args);

builder.Services.Configure<ForwardedHeadersOptions>(options =>
{
    options.ForwardedHeaders =
        ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto;
    
    options.KnownNetworks.Clear();
    options.KnownProxies.Clear();
});

var corsAllowedOrigins = builder.Configuration.GetSection("Cors:AllowedOrigins").Get<string[]>() ?? [];
builder.Services.AddCors(options =>
{
    options.AddPolicy(CorsPolicyName, policy => policy
        .WithOrigins(corsAllowedOrigins)
        .AllowAnyHeader()
        .AllowAnyMethod());
});
builder.Services.AddApprovalRouteInfrastructure(builder.Configuration);
builder.Services.AddApprovalRouteApplication();
builder.Services.AddApprovalRouteAuth(builder.Configuration);
builder.Services.AddScoped<ICurrentUser, CurrentUserAccessor>();
builder.Services.AddOpenApi(options =>
{
    options.AddDocumentTransformer((document, _, _) =>
    {
        document.Components ??= new OpenApiComponents();
        document.Components.SecuritySchemes ??= new Dictionary<string, IOpenApiSecurityScheme>();
        document.Components.SecuritySchemes["Bearer"] = new OpenApiSecurityScheme
        {
            Type = SecuritySchemeType.Http,
            Scheme = "bearer",
            BearerFormat = "JWT",
            Description = "Введите JWT токен"
        };
        return Task.CompletedTask;
    });
    options.AddOperationTransformer((operation, context, _) =>
    {
        operation.Security =
        [
            new OpenApiSecurityRequirement
            {
                [new OpenApiSecuritySchemeReference("Bearer", context.Document)] = []
            }
        ];
        return Task.CompletedTask;
    });
});
builder.Services.AddHealthChecks();
builder.Services.AddControllers(options => options.Filters.Add<ValidationActionFilter>())
    .AddJsonOptions(o => o.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()));
builder.Services.ConfigureHttpJsonOptions(o => o.SerializerOptions.Converters.Add(new JsonStringEnumConverter()));

var app = builder.Build();

app.UseForwardedHeaders();

app.MapOpenApi();

app.MapScalarApiReference(options =>
{
    options
        .WithTitle("Tnsu Approval Route")
        .AddPreferredSecuritySchemes("Bearer")
        .AddHttpAuthentication("Bearer", _ => { });
});

app.MapHealthChecks("/health");

app.UseCors(CorsPolicyName);

app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();

await app.InitAndRunAsync();

public partial class Program;