using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.Metadata;
using System.Threading.Tasks;
using GadgetsOnline.Models;
using GadgetsOnline.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace GadgetsOnline
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
            ConfigurationManager.Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDistributedMemoryCache();
            services.AddSession(options =>
            {
                options.IdleTimeout = TimeSpan.FromHours(1);
                options.Cookie.HttpOnly = true;
                options.Cookie.IsEssential = true;
            });

            services.AddControllersWithViews();
            services.AddDbContext<GadgetsOnlineEntities>(opt =>
            {
                opt.UseSqlServer(Configuration.GetConnectionString(nameof(GadgetsOnlineEntities)));
            });

            // seed data
            using (var context = new GadgetsOnlineEntities(Configuration.GetConnectionString(nameof(GadgetsOnlineEntities))))
            {
                context.Database.EnsureCreated();
                context.SaveChanges();
            }

            services.AddScoped<IInventory, Inventory>();
            services.AddScoped<IShoppingCart, ShoppingCart>();
            services.AddScoped<IOrderProcessing, OrderProcessing>();
            //Added Services
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                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();
            }
            app.UseHttpsRedirection();
            app.UseStaticFiles();

            //Added Middleware

            app.UseRouting();

            app.UseAuthorization();

            app.UseSession();

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

    public class ConfigurationManager
    {
        public static IConfiguration Configuration { get; set; }
    }

}