using DotNetCore.CAP;
using LINGYUN.Abp.EventBus.CAP;
using LINGYUN.Abp.MultiTenancy.DbFinder;
using LINGYUN.ApiGateway.EntityFrameworkCore;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.DataProtection;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Caching.StackExchangeRedis;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi.Models;
using StackExchange.Redis;
using System;
using System.Text;
using Volo.Abp;
using Volo.Abp.AspNetCore.Security.Claims;
using Volo.Abp.Autofac;
using Volo.Abp.AutoMapper;
using Volo.Abp.Caching;
using Volo.Abp.Caching.StackExchangeRedis;
using Volo.Abp.Data;
using Volo.Abp.EntityFrameworkCore;
using Volo.Abp.EntityFrameworkCore.MySQL;
using Volo.Abp.Localization;
using Volo.Abp.Modularity;
using Volo.Abp.MultiTenancy;
using Volo.Abp.PermissionManagement.EntityFrameworkCore;
using Volo.Abp.Security.Claims;
using Volo.Abp.Security.Encryption;
using Volo.Abp.SettingManagement.EntityFrameworkCore;
using Volo.Abp.TenantManagement.EntityFrameworkCore;
using Volo.Abp.Threading;

namespace LINGYUN.ApiGateway
{
    [DependsOn(
        typeof(ApiGatewayApplicationModule),
        typeof(ApiGatewayEntityFrameworkCoreModule),
        typeof(ApiGatewayHttpApiModule),
        typeof(AbpEntityFrameworkCoreMySQLModule),
        typeof(AbpTenantManagementEntityFrameworkCoreModule),
        typeof(AbpSettingManagementEntityFrameworkCoreModule),
        typeof(AbpPermissionManagementEntityFrameworkCoreModule),
        typeof(AbpCAPEventBusModule),
        typeof(AbpDbFinderMultiTenancyModule),
        typeof(AbpCachingStackExchangeRedisModule),
        typeof(AbpAutofacModule)
        )]
    public class ApiGatewayHttpApiHostModule : AbpModule
    {
        public override void PreConfigureServices(ServiceConfigurationContext context)
        {
            var configuration = context.Services.GetConfiguration();

            PreConfigure<CapOptions>(options =>
            {
                options
                .UseMySql(configuration.GetConnectionString("Default"))
                .UseRabbitMQ(rabbitMQOptions =>
                {
                    configuration.GetSection("CAP:RabbitMQ").Bind(rabbitMQOptions);
                });
            });
        }

        public override void ConfigureServices(ServiceConfigurationContext context)
        {
            var hostingEnvironment = context.Services.GetHostingEnvironment();
            var configuration = hostingEnvironment.BuildConfiguration();
            // 配置Ef
            Configure<AbpDbContextOptions>(options =>
            {
                options.UseMySQL();
            });

            // 加解密
            Configure<AbpStringEncryptionOptions>(options =>
            {
                var encryptionConfiguration = configuration.GetSection("Encryption");
                if (encryptionConfiguration.Exists())
                {
                    options.DefaultPassPhrase = encryptionConfiguration["PassPhrase"] ?? options.DefaultPassPhrase;
                    options.DefaultSalt = encryptionConfiguration.GetSection("Salt").Exists()
                        ? Encoding.ASCII.GetBytes(encryptionConfiguration["Salt"])
                        : options.DefaultSalt;
                    options.InitVectorBytes = encryptionConfiguration.GetSection("InitVector").Exists()
                        ? Encoding.ASCII.GetBytes(encryptionConfiguration["InitVector"])
                        : options.InitVectorBytes;
                }
            });

            Configure<AbpDistributedCacheOptions>(options =>
            {
                // 最好统一命名,不然某个缓存变动其他应用服务有例外发生
                options.KeyPrefix = "LINGYUN.Abp.Application";
                // 滑动过期30天
                options.GlobalCacheEntryOptions.SlidingExpiration = TimeSpan.FromDays(30);
                // 绝对过期60天
                options.GlobalCacheEntryOptions.AbsoluteExpirationRelativeToNow = TimeSpan.FromDays(60);
            });

            Configure<RedisCacheOptions>(options =>
            {
                var redisConfig = ConfigurationOptions.Parse(options.Configuration);
                // 单独一个缓存数据库
                var databaseConfig = configuration.GetSection("Redis:DefaultDatabase");
                if (databaseConfig.Exists())
                {
                    redisConfig.DefaultDatabase = databaseConfig.Get<int>();
                }
                options.ConfigurationOptions = redisConfig;
                options.InstanceName = configuration["Redis:InstanceName"];
            });

            // 多租户
            Configure<AbpMultiTenancyOptions>(options =>
            {
                options.IsEnabled = false;
            });

            //Configure<AbpTenantResolveOptions>(options =>
            //{
            //    options.TenantResolvers.Insert(0, new AuthorizationTenantResolveContributor());
            //});

            // Swagger
            context.Services.AddSwaggerGen(
                options =>
                {
                    options.SwaggerDoc("v1", new OpenApiInfo { Title = "ApiGateway API", Version = "v1" });
                    options.DocInclusionPredicate((docName, description) => true);
                    options.CustomSchemaIds(type => type.FullName);
                    options.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
                    {
                        Description = "JWT Authorization header using the Bearer scheme. Example: \"Authorization: Bearer {token}\"",
                        Name = "Authorization",
                        In = ParameterLocation.Header,
                        Scheme = "bearer",
                        Type = SecuritySchemeType.Http,
                        BearerFormat = "JWT"
                    });
                    options.AddSecurityRequirement(new OpenApiSecurityRequirement
                    {
                        {
                            new OpenApiSecurityScheme
                            {
                                Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "Bearer" }
                            },
                            new string[] { }
                        }
                    });
                });

            // 支持本地化语言类型
            Configure<AbpLocalizationOptions>(options =>
            {
                options.Languages.Add(new LanguageInfo("en", "en", "English"));
                options.Languages.Add(new LanguageInfo("zh-Hans", "zh-Hans", "简体中文"));
            });

            Configure<AbpClaimsMapOptions>(options =>
            {
                options.Maps.TryAdd("name", () => AbpClaimTypes.UserName);
            });

            context.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddJwtBearer(options =>
                {
                    options.Authority = configuration["AuthServer:Authority"];
                    options.RequireHttpsMetadata = false;
                    options.Audience = configuration["AuthServer:ApiName"];
                });

            if (!hostingEnvironment.IsDevelopment())
            {
                var redis = ConnectionMultiplexer.Connect(configuration["Redis:Configuration"]);
                context.Services
                    .AddDataProtection()
                    .PersistKeysToStackExchangeRedis(redis, "ApiGateway-Protection-Keys");
            }

            Configure<AbpAutoMapperOptions>(options =>
            {
                options.AddProfile<ApiGatewayHttpApiHostAutoMapperProfile>(validate: true);
            });
        }

        public override void OnApplicationInitialization(ApplicationInitializationContext context)
        {
            var app = context.GetApplicationBuilder();
            // http调用链
            app.UseCorrelationId();
            // 虚拟文件系统
            app.UseVirtualFiles();
            //路由
            app.UseRouting();
            // 认证
            app.UseAuthentication();
            app.UseAbpClaimsMap();
            // 多租户
            // app.UseMultiTenancy();
            // 本地化
            app.UseAbpRequestLocalization();
            // Swagger
            app.UseSwagger();
            // Swagger可视化界面
            app.UseSwaggerUI(options =>
            {
                options.SwaggerEndpoint("/swagger/v1/swagger.json", "Support ApiGateway API");
            });
            // 审计日志
            app.UseAuditing();
            // 路由
            app.UseConfiguredEndpoints();

            if (context.GetEnvironment().IsDevelopment())
            {
                SeedData(context);
            }
        }

        private void SeedData(ApplicationInitializationContext context)
        {
            AsyncHelper.RunSync(async () =>
            {
                using var scope = context.ServiceProvider.CreateScope();
                await scope.ServiceProvider.GetRequiredService<IDataSeeder>().SeedAsync();
            });
        }
    }
}