using Fantasy.Async;
using Fantasy.Event;
using Fantasy.Network.HTTP;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace NBF;

public class GameHttpServicesHandler : AsyncEventSystem<OnConfigureHttpServices>
{
    protected override async FTask Handler(OnConfigureHttpServices self)
    {
        // 1. 配置 JSON 序列化
        self.MvcBuilder.AddJsonOptions(options =>
        {
            options.JsonSerializerOptions.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
            options.JsonSerializerOptions.WriteIndented = true;
            options.JsonSerializerOptions.DefaultIgnoreCondition =
                JsonIgnoreCondition.WhenWritingNull;
            options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
        });

        // 2. 添加全局过滤器
        self.MvcBuilder.AddMvcOptions(options =>
        {
            options.Filters.Add<GameExceptionFilter>();
            options.Filters.Add<ModelValidationFilter>();
        });

        // 3. 配置 JWT 认证
        var jwtSecret = "YourSuperSecretKeyForJwtTokenGeneration123!";
        self.Builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
            .AddJwtBearer(options =>
            {
                options.TokenValidationParameters = new TokenValidationParameters
                {
                    ValidateIssuer = true,
                    ValidateAudience = true,
                    ValidateLifetime = true,
                    ValidateIssuerSigningKey = true,
                    ValidIssuer = "GameServer",
                    ValidAudience = "GameClient",
                    IssuerSigningKey = new SymmetricSecurityKey(
                        Encoding.UTF8.GetBytes(jwtSecret)),
                    ClockSkew = TimeSpan.Zero
                };
            });

        // 4. 配置授权策略
        self.Builder.Services.AddAuthorization(options =>
        {
            options.AddPolicy("Player", policy =>
                policy.RequireRole("Player", "Admin"));
            options.AddPolicy("Admin", policy =>
                policy.RequireRole("Admin"));
            options.AddPolicy("VIP", policy =>
                policy.RequireClaim("VIPLevel"));
        });

        // 5. 配置 CORS
        self.Builder.Services.AddCors(options =>
        {
            options.AddPolicy("GameClient", builder =>
            {
                builder.WithOrigins(
                        "https://game.example.com",
                        "https://cdn.game.example.com"
                    )
                    .AllowAnyMethod()
                    .AllowAnyHeader()
                    .AllowCredentials();
            });
        });

        // 6. 注册游戏服务
        self.Builder.Services.AddSingleton<IPlayerService, PlayerService>();
        self.Builder.Services.AddSingleton<IGuildService, GuildService>();
        self.Builder.Services.AddScoped<IAuthService, AuthService>();
        self.Builder.Services.AddScoped<IGameRepository, GameRepository>();

        Log.Info($"[HTTP] 游戏服务配置完成: Scene {self.Scene.SceneConfigId}");

        await FTask.CompletedTask;
    }
}