using ApplicationCore.Entities.OrderAggregate;
using ApplicationCore.Interfaces;
using ApplicationCore.Services;
using Infrastructure.Data;
using Infrastructure.Identity;
using Infrastructure.Logging;
using Infrastructure.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.eShopWeb.Services;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System;
using System.Text;
using Web.Services;

namespace Microsoft.eShopWeb
{
    public class Startup
    {
        private IServiceCollection _services;
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        public void ConfigureServices(IServiceCollection services)
        {
            // Requires LocalDB which can be installed with SQL Server Express 2016
            // https://www.microsoft.com/en-us/download/details.aspx?id=54284
            services.AddDbContext<CatalogContext>(c =>
            {
                try
                {
                    c.UseInMemoryDatabase("Catalog");
                    //c.UseSqlServer(Configuration.GetConnectionString("CatalogConnection"));
                }
                catch (System.Exception ex )
                {
                    var message = ex.Message;
                }                
            });

            // Add Identity DbContext
            services.AddDbContext<AppIdentityDbContext>(options =>
                options.UseInMemoryDatabase("Identity"));
                //options.UseSqlServer(Configuration.GetConnectionString("IdentityConnection")));

            services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddEntityFrameworkStores<AppIdentityDbContext>()
                .AddDefaultTokenProviders();

            services.ConfigureApplicationCookie(options =>
            {
                options.Cookie.HttpOnly = true;
                options.ExpireTimeSpan = TimeSpan.FromHours(1);
                options.LoginPath = "/Account/Signin";
                options.LogoutPath = "/Account/Signout";
            });

            services.AddScoped(typeof(IRepository<>), typeof(EfRepository<>));
            services.AddScoped(typeof(IAsyncRepository<>), typeof(EfRepository<>));

            services.AddMemoryCache();
            services.AddScoped<ICatalogService, CachedCatalogService>();
            services.AddScoped<IBasketService, BasketService>();
            services.AddScoped<IOrderService, OrderService>();
            services.AddScoped<IOrderRepository, OrderRepository>();
            services.AddScoped<CatalogService>();
            services.Configure<CatalogSettings>(Configuration);
            services.AddSingleton<IUriComposer>(new UriComposer(Configuration.Get<CatalogSettings>()));

            services.AddScoped(typeof(IAppLogger<>), typeof(LoggerAdapter<>));

            // Add memory cache services
            services.AddMemoryCache();

            services.AddMvc();

            _services = services;
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, 
            IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseBrowserLink();
                ListAllRegisteredServices(app);
                app.UseDatabaseErrorPage();
            }
            else
            {
                app.UseExceptionHandler("/Catalog/Error");
            }

            app.UseStaticFiles();
            app.UseAuthentication();

            app.UseMvc();
        }

        private void ListAllRegisteredServices(IApplicationBuilder app)
        {
            app.Map("/allservices", builder => builder.Run(async context =>
            {
                var sb = new StringBuilder();
                sb.Append("<h1>All Services</h1>");
                sb.Append("<table><thead>");
                sb.Append("<tr><th>Type</th><th>Lifetime</th><th>Instance</th></tr>");
                sb.Append("</thead><tbody>");
                foreach (var svc in _services)
                {
                    sb.Append("<tr>");
                    sb.Append($"<td>{svc.ServiceType.FullName}</td>");
                    sb.Append($"<td>{svc.Lifetime}</td>");
                    sb.Append($"<td>{svc.ImplementationType?.FullName}</td>");
                    sb.Append("</tr>");
                }
                sb.Append("</tbody></table>");
                await context.Response.WriteAsync(sb.ToString());
            }));
        }

        public void ConfigureDevelopment(IApplicationBuilder app,
                                        IHostingEnvironment env,
                                        ILoggerFactory loggerFactory,
                                        UserManager<ApplicationUser> userManager,
                                        CatalogContext catalogContext)
        {
            Configure(app, env);

            //Seed Data
            CatalogContextSeed.SeedAsync(app, catalogContext, loggerFactory)
            .Wait();

            var defaultUser = new ApplicationUser { UserName = "demouser@microsoft.com", Email = "demouser@microsoft.com" };
            userManager.CreateAsync(defaultUser, "Pass@word1").Wait();
        }

        /// <summary>
        /// Use this section to perform production-specific configuration.
        /// In this case it is duplicating Development so that deployments to Azure will have sample data immediately.
        /// </summary>
        /// <param name="app"></param>
        /// <param name="env"></param>
        /// <param name="loggerFactory"></param>
        /// <param name="userManager"></param>
        public void ConfigureProduction(IApplicationBuilder app,
                                        IHostingEnvironment env,
                                        ILoggerFactory loggerFactory,
                                        UserManager<ApplicationUser> userManager,
                                        CatalogContext catalogContext)
        {
            Configure(app, env);

            //Seed Data
            CatalogContextSeed.SeedAsync(app, catalogContext, loggerFactory)
            .Wait();

            var defaultUser = new ApplicationUser { UserName = "demouser@microsoft.com", Email = "demouser@microsoft.com" };
            userManager.CreateAsync(defaultUser, "Pass@word1").Wait();
        }
    }
}