using Autofac;
using Autofac.Extensions.DependencyInjection;
using CoreCms.Net.Configuration;
using CoreCms.Net.Loging;
using Essensoft.Paylink.Alipay;
using Essensoft.Paylink.WeChatPay;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.HttpOverrides;
using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using NLog.Web;
using System;
using System.Linq;
using System.Threading.RateLimiting;
using CoreCms.Net.Auth;
using CoreCms.Net.Core.AutoFac;
using CoreCms.Net.Core.Config;
using CoreCms.Net.Filter;
using CoreCms.Net.Mapping;
using CoreCms.Net.Middlewares;
using CoreCms.Net.Model.ViewModels.Options;
using CoreCms.Net.Swagger;
using CoreCms.Net.Utility;
using CoreCms.Net.Web.Admin.Infrastructure;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using Yitter.IdGenerator;
using LogLevel = NLog.LogLevel;
using Microsoft.AspNetCore.RateLimiting;
using Microsoft.Extensions.Configuration;


var builder = WebApplication.CreateBuilder(args);

//添加本地路径获取支持
builder.Services.AddSingleton(new AppSettingsHelper(builder.Environment.ContentRootPath));
builder.Services.AddSingleton(new LogLockHelper(builder.Environment.ContentRootPath));

//Memory缓存
builder.Services.AddMemoryCacheSetup();
//Redis缓存
builder.Services.AddRedisCacheSetup();

//添加数据库连接SqlSugar注入支持
builder.Services.AddSqlSugarSetup();
//配置跨域（CORS）
builder.Services.AddCorsSetup();

//添加session支持(session依赖于cache进行存储)
builder.Services.AddSession();
// AutoMapper支持
builder.Services.AddAutoMapper(typeof(AutoMapperConfiguration));

// 引入Payment 依赖注入(支付宝支付/微信支付)
builder.Services.AddAlipay();
builder.Services.AddWeChatPay();

//注册自定义微信接口配置文件
builder.Services.Configure<CoreCms.Net.WeChat.Service.Options.WeChatOptions>(builder.Configuration.GetSection(nameof(CoreCms.Net.WeChat.Service.Options.WeChatOptions)));

// 注入工厂 HTTP 客户端
builder.Services.AddHttpClient();
builder.Services.AddSingleton<CoreCms.Net.WeChat.Service.HttpClients.IWeChatApiHttpClientFactory, CoreCms.Net.WeChat.Service.HttpClients.WeChatApiHttpClientFactory>();

//Swagger接口文档注入
builder.Services.AddAdminSwaggerSetup();

//jwt授权支持注入
builder.Services.AddAuthorizationSetupForAdmin();

//上下文注入
builder.Services.AddHttpContextSetup();

//服务配置中加入AutoFac控制器替换规则。
builder.Services.Replace(ServiceDescriptor.Transient<IControllerActivator, ServiceBasedControllerActivator>());

//注册mvc，注册razor引擎视图
builder.Services.AddMvc(options =>
    {
        //实体验证
        options.Filters.Add<RequiredErrorForAdmin>();
        //异常处理
        options.Filters.Add<GlobalExceptionsFilterForAdmin>();
        //Swagger剔除不需要加入api展示的列表
        options.Conventions.Add(new ApiExplorerIgnores());

        options.EnableEndpointRouting = false;
    })
    .AddNewtonsoftJson(p =>
    {
        //数据格式首字母小写 不使用驼峰
        p.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
        //不使用驼峰样式的key
        //p.SerializerSettings.ContractResolver = new DefaultContractResolver();
        //忽略循环引用
        p.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
        //设置时间格式
        p.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
    });


//调用 AddRateLimiter 来将速率限制服务添加到服务集合
builder.Services.Configure<MyRateLimitOptions>(builder.Configuration.GetSection(MyRateLimitOptions.MyRateLimit));

var myOptions = new MyRateLimitOptions();
builder.Configuration.GetSection(MyRateLimitOptions.MyRateLimit).Bind(myOptions);
var fixedPolicy = "fixed";

builder.Services.AddRateLimiter(_ => _
    .AddFixedWindowLimiter(policyName: fixedPolicy, options =>
    {
        options.PermitLimit = myOptions.PermitLimit;
        //options.Window = TimeSpan.FromSeconds(myOptions.Window); //不走窗口限制了。直接走请求数限制。
        options.QueueProcessingOrder = QueueProcessingOrder.OldestFirst;
        options.QueueLimit = myOptions.QueueLimit;
    }));


// 雪花漂移算法
// 创建 IdGeneratorOptions 对象，请在构造函数中输入 WorkerId：
var options = new IdGeneratorOptions(1);
// WorkerIdBitLength 默认值6，支持的 WorkerId 最大值为2^6-1，若 WorkerId 超过64，可设置更大的 WorkerIdBitLength
// options.WorkerIdBitLength = 10; 
// ...... 其它参数设置参考 IdGeneratorOptions 定义，一般来说，只要再设置 WorkerIdBitLength （决定 WorkerId 的最大值）。

// 保存参数（必须的操作，否则以上设置都不能生效）：
YitIdHelper.SetIdGenerator(options);

// 初始化以后，即可在任何需要生成ID的地方，调用以下方法：
//var newId = YitIdHelper.NextId();

#region AutoFac注册============================================================================

builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
builder.Host.ConfigureContainer<ContainerBuilder>(containerBuilder =>
{
    containerBuilder.RegisterModule(new AutofacModuleRegister());

    //获取所有控制器类型并使用属性注入
    var controllerBaseType = typeof(ControllerBase);
    containerBuilder.RegisterAssemblyTypes(typeof(Program).Assembly)
        .Where(t => controllerBaseType.IsAssignableFrom(t) && t != controllerBaseType)
        .PropertiesAutowired();
});

#endregion

#region Nlog注册============================================================================
// NLog: Setup NLog for Dependency injection
builder.Logging.ClearProviders();//移除已经注册的其他日志处理程序
builder.Logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace); //设置最小的日志级别
builder.Host.UseNLog();
#endregion


var app = builder.Build();



#region 解决Ubuntu Nginx 代理不能获取IP问题===================================================================
app.UseForwardedHeaders(new ForwardedHeadersOptions
{
    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
});
#endregion

#region 中间件注册===================================================================
// 获取用户访问真实ip
app.RealIpMiddleware();
// 启用速率限制中间件
app.UseRateLimiter();
// 记录请求与返回数据 (注意开启权限，不然本地无法写入)
app.UseRequestResponseLog();
// 用户访问记录(必须放到外层，不然如果遇到异常，会报错，因为不能返回流)(注意开启权限，不然本地无法写入)
app.UseRecordAccessLogsMildd(GlobalEnumVars.CoreShopSystemCategory.Admin.ToString());
// 记录ip请求 (注意开启权限，不然本地无法写入)
app.UseIpLogMildd();

#endregion

app.UseSwagger().UseSwaggerUI(c =>
{
    //根据版本名称倒序 遍历展示
    typeof(CustomApiVersion.ApiVersions).GetEnumNames().OrderByDescending(e => e).ToList().ForEach(
        version =>
        {
            c.SwaggerEndpoint($"/swagger/{version}/swagger.json", $"Doc {version}");
        });
    c.RoutePrefix = "doc";
});


//使用 Session
app.UseSession();

if (app.Environment.IsDevelopment())
{
    // 在开发环境中，使用异常页面，这样可以暴露错误堆栈信息，所以不要放在生产环境。
    app.UseDeveloperExceptionPage();
}
else
{
    app.UseExceptionHandler("/Home/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

// CORS跨域
app.UseCors(AppSettingsConstVars.CorsPolicyName);
// 跳转https
//app.UseHttpsRedirection();

// 使用cookie
app.UseCookiePolicy();
// 返回错误码
app.UseStatusCodePages();
// Routing
app.UseRouting();
// 先开启认证
app.UseAuthentication();
// 然后是授权中间件
app.UseAuthorization();

app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");


//设置默认起始页（如default.html）
//此处的路径是相对于wwwroot文件夹的相对路径
var defaultFilesOptions = new DefaultFilesOptions();
defaultFilesOptions.DefaultFileNames.Clear();
defaultFilesOptions.DefaultFileNames.Add("index.html");
app.UseDefaultFiles(defaultFilesOptions);
// 使用静态文件
app.UseStaticFiles();

try
{
    //确保NLog.config中连接字符串与appsettings.json中同步
    NLogUtil.EnsureNlogConfig("NLog.config");
    //其他项目启动时需要做的事情
    NLogUtil.WriteAll(LogLevel.Trace, LogType.ApiRequest, "后端启动", "后端启动成功");

    app.Run();
}
catch (Exception ex)
{
    //使用Nlog写到本地日志文件（万一数据库没创建/连接成功）
    NLogUtil.WriteFileLog(LogLevel.Error, LogType.ApiRequest, "后端启动", "初始化数据异常", ex);
    throw;
}