using Galaeth.ApiServer.Extensions;
using Galaeth.ApiServer.HostedServices;
using Galaeth.ApiServer.Middleware;
using Galaeth.Core.Configuration;
using Galaeth.Services.Configuration;
using Galaeth.Services.Profiles;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.OpenApi.Models;
using MyCSharp.HttpUserAgentParser.AspNetCore.DependencyInjection;
using MyCSharp.HttpUserAgentParser.MemoryCache.DependencyInjection;
using Serilog;

namespace Galaeth.ApiServer;

/// <summary>
/// Entry point for service.
/// </summary>
internal static class Program
{
    /// <summary>
    /// Entry point method.
    /// </summary>
    /// <param name="args">Service arguments.</param>
    public static async Task Main(string[] args)
    {
        var builder = WebApplication.CreateBuilder(args);

        builder.Configuration
            .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
            .AddJsonFile($"appsettings.{builder.Environment.EnvironmentName}.json", optional: true)
            .AddEnvironmentVariables();

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

        builder.Services.AddSerilog();

        builder.Services.AddHttpUserAgentMemoryCachedParser(opt =>
        {
            opt.CacheEntryOptions.SlidingExpiration = TimeSpan.FromMinutes(30);
            opt.CacheOptions.SizeLimit = 1024;
        }).AddHttpUserAgentParserAccessor();

        builder.Services.AddHostedService<StartupService>();

        builder.Services.AddGalaethCore();
        builder.Services.AddGalaethApiServer();
        builder.Services.AddGalaethServices();
        builder.Services.AddGalaethDAL();

        builder.Services.AddHttpContextAccessor();
        builder.Services.AddControllers();

        builder.Services.AddEndpointsApiExplorer();
        builder.Services.AddSwaggerGen(setup =>
        {
            var jwtSecurityScheme = new OpenApiSecurityScheme
            {
                BearerFormat = "JWT",
                Name = "JWT Authentication",
                In = ParameterLocation.Header,
                Type = SecuritySchemeType.Http,
                Scheme = JwtBearerDefaults.AuthenticationScheme,
                Description = "Paste your access token below",
                Reference = new OpenApiReference
                {
                    Id = JwtBearerDefaults.AuthenticationScheme,
                    Type = ReferenceType.SecurityScheme,
                },
            };

            setup.AddSecurityDefinition(jwtSecurityScheme.Reference.Id, jwtSecurityScheme);

            setup.AddSecurityRequirement(new OpenApiSecurityRequirement
            {
                { jwtSecurityScheme, Array.Empty<string>() },
            });
        });

        // Setup authentication.
        var jwtConfig = new JwtConfiguration();
        builder.Configuration.Bind("JWT", jwtConfig);
        builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
            .AddJwtBearer(options => options.TokenValidationParameters = jwtConfig.ToTokenValidationParameters());

        builder.Services.AddAuthentication();
        builder.Services.AddAuthorization();

        // Setup automapping.
        builder.Services.AddAutoMapper(typeof(AutomapperProfile).Assembly);

        // Setup configuration.
        builder.Services.Configure<DatabaseConfiguration>(builder.Configuration.GetSection("Database"));
        builder.Services.Configure<PwdHashConfiguration>(builder.Configuration.GetSection("PwdHash"));
        builder.Services.Configure<InitialUserConfiguration>(builder.Configuration.GetSection("InitialUser"));
        builder.Services.Configure<RegistrationConfiguration>(builder.Configuration.GetSection("Registration"));
        builder.Services.Configure<EmailDomainBlacklistConfiguration>(
            builder.Configuration.GetSection("EmailDomainBlacklist"));
        builder.Services.Configure<JwtConfiguration>(builder.Configuration.GetSection("JWT"));

        var app = builder.Build();

        // Error handling middleware.
        app.UseMiddleware<ExceptionMiddleware>();
        app.UseMiddleware<StatusCodeMiddleware>();

        if (app.Environment.IsDevelopment())
        {
            app.UseSwagger();
            app.UseSwaggerUI();
        }

        app.UseAuthorization();
        app.MapControllers();

        await app.RunAsync();
    }
}