using Application.Domain.Entities;
using Infrastructure.Data;
using Infrastructure.Domain;
using Infrastructure.Email;
using Infrastructure.Extensions;
using Infrastructure.Security;
using Infrastructure.Sms;
using Infrastructure.Web;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Raven.Embedded;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace UserCenter
{
    public class Startup : BaseStartup
    {
        public Startup(IConfiguration configuration, IHostingEnvironment env) : base(configuration, env)
        {
            EmbeddedServer.Instance.StartServer();
        }

        public override void ConfigureServices(IServiceCollection services)
        {
            base.ConfigureServices(services);
            services.AddTransient<IEmailSender, EmptyEmailSender>();
            services.AddTransient<ISmsSender, EmptySmsSender>();
            services.AddOcelot();
        }

        public override void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            base.Configure(app, env, loggerFactory);
            app.UseOcelot().Wait();
        }

        public override Task ValidatePrincipal(CookieValidatePrincipalContext arg)
        {
            return Task.Run(() =>
            {
                var userRepo = arg.HttpContext.RequestServices.GetService<IRepository<User>>();

                var userName = arg.Principal.Identity.Name;
                var userPermissions = userRepo.ReadOnlyTable().Where(o => o.UserName == userName)
                                 .SelectMany(o => o.UserRoles)
                                 .Select(o => o.Role)
                                 .SelectMany(o => o.RolePermissions)
                                 .Select(o => o.Permission.Number)
                                 .ToList();
                var currentPermissions = arg.Principal.Claims.Where(o => o.Type == "Role").Select(o => o.Value).ToList();
                if (!currentPermissions.SequenceEqual(userPermissions))
                {
                    arg.HttpContext.SignOutAsync();
                    arg.HttpContext.SignIn(userName, userPermissions, arg.Properties.IsPersistent);
                }
            });
        }

        public override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<PermissionCategory>().HasOne(o => o.Parent).WithMany(o => o.Children).HasForeignKey(o => o.ParentId).OnDelete(DeleteBehavior.SetNull);
            modelBuilder.Entity<Permission>().HasOne(o => o.Category).WithMany(o => o.Permissions).HasForeignKey(o => o.CategoryId).OnDelete(DeleteBehavior.SetNull);
            modelBuilder.Entity<UserRole>().HasOne(o => o.User).WithMany(o => o.UserRoles).HasForeignKey(o => o.UserId);
            modelBuilder.Entity<UserRole>().HasOne(o => o.Role).WithMany(o => o.UserRoles).HasForeignKey(o => o.RoleId);
            modelBuilder.Entity<RolePermission>().HasOne(o => o.Role).WithMany(o => o.RolePermissions).HasForeignKey(o => o.RoleId);
            modelBuilder.Entity<RolePermission>().HasOne(o => o.Permission).WithMany(o => o.RolePermissions).HasForeignKey(o => o.PermissionId);
            modelBuilder.Entity<User>().HasIndex(o => o.PhoneNumber).IsUnique();
            modelBuilder.Entity<User>().HasIndex(o => o.NickName).IsUnique(); modelBuilder.Entity<Role>().HasIndex(o => o.Name).IsUnique();
            modelBuilder.Entity<PermissionCategory>().HasIndex(o => o.Number).IsUnique();
            modelBuilder.Entity<Permission>().HasIndex(o => o.Number).IsUnique();
            modelBuilder.Entity<UserRole>().HasIndex(o => new { o.UserId, o.RoleId }).IsUnique();
            modelBuilder.Entity<RolePermission>().HasIndex(o => new { o.RoleId, o.PermissionId }).IsUnique();
            //关系
            modelBuilder.Entity<Site>();
            modelBuilder.Entity<Site>().HasIndex(o => o.Name).IsUnique();
        }

        public override void Seed(DbContext dbContext, IServiceProvider serviceProvider, IConfiguration configuration)
        {
            dbContext.Set<PermissionCategory>().Add(new PermissionCategory
            {
                Name = "配置",
                Number = "Configuration",
                Permissions = new List<Permission> {
                    new Permission { Name = "查询配置", Number = "ListConfiguration",DisplayOrder =1 },
                    new Permission { Name = "修改配置", Number = "EditConfiguration",DisplayOrder =2 }
                }
            });
            int i = 1;
            var skipReadCollection = new string[] { "Permission" };
            var skipAddCollection = new string[] { "Permission" };
            foreach (var item in dbContext.Model.GetEntityTypes())
            {
                var type = item.ClrType;
                var name = type.GetDisplayName();
                var number = type.Name;
                var category = new PermissionCategory
                {
                    Name = name,
                    Number = type.Name,
                    DisplayOrder = i
                };
                category.Permissions.Add(new Permission { Name = $"查询{name}", Number = $"List{number}", DisplayOrder = 10 * i + 1 });
                if (!skipReadCollection.Contains(type.Name))
                {
                    category.Permissions.Add(new Permission { Name = $"查看{name}", Number = $"Read{number}", DisplayOrder = 10 * i + 2 });
                }
                if (!skipAddCollection.Contains(type.Name))
                {
                    category.Permissions.Add(new Permission { Name = $"添加{name}", Number = $"Add{number}", DisplayOrder = 10 * i + 3 });
                }
                if (!typeof(IDisableUpdate).IsAssignableFrom(type))
                {
                    category.Permissions.Add(new Permission { Name = $"修改{name}", Number = $"Edit{number}", DisplayOrder = 10 * i + 4 });
                }
                if (!typeof(IDisableDelete).IsAssignableFrom(type))
                {
                    category.Permissions.Add(new Permission { Name = $"删除{name}", Number = $"Delete{number}", DisplayOrder = 10 * i + 5 });
                }
                dbContext.Set<PermissionCategory>().Add(category);
                i += 1;
            }
            dbContext.SaveChanges();

            var adminRole = new Role { Name = "管理员", IsReadOnly = true };
            foreach (var item in dbContext.Set<Permission>())
            {
                adminRole.RolePermissions.Add(new RolePermission { Permission = item, IsReadOnly = true });
            }
            var encryptionService = serviceProvider.GetService<IEncryptionService>();
            var securityStam = "123456";
            dbContext.Set<User>().Add(new User
            {
                UserName = "admin",
                SecurityStamp = securityStam,
                PasswordHash = encryptionService.CreatePasswordHash("123456", securityStam),
                PasswordConfirmed = true,
                Email = "test@test.com",
                EmailConfirmed = true,
                PhoneNumber = "13000000000",
                PhoneNumberConfirmed = true,
                UserRoles = new List<UserRole> { new UserRole { Role = adminRole } }
            });
            dbContext.SaveChanges();
            var host = Helper.Instance.GetLocalIP().ToString();
            dbContext.Set<Site>().Add(new Site
            {
                Name = "物联网平台",
                Description = "智能设备管控中心",
                Home = $"http://{host}:8001/",
                Login = $"http://{host}:8001/Account/JsonpLogin",
                Logout = $"http://{host}:8001/Account/JsonpLogout",
                Key = "123456"
            });
            dbContext.Set<Site>().Add(new Site
            {
                Name = "学习平台",
                Description = "资源库、在线学习、网络课程中心",
                Home = $"http://{host}:8082/",
                Login = $"http://{host}:8082/Account/JsonpLogin",
                Logout = $"http://{host}:8082/Account/JsonpLogout",
                Key = "123456"
            });
            dbContext.SaveChanges();
        }
    }
}