using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using AutoMapper;
using Microsoft.AspNet.Authorization;
using Microsoft.AspNet.Builder;
using Microsoft.AspNet.Hosting;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.AspNet.SpaServices;
using Microsoft.Data.Entity;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using MusicStore.Apis;
using MusicStore.Models;

namespace MusicStore
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            // Set up configuration sources.
            var builder = new ConfigurationBuilder()
                .AddJsonFile("appsettings.json")
                .AddEnvironmentVariables();
            Configuration = builder.Build();
        }

        public IConfigurationRoot Configuration { get; set; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<SiteSettings>(settings =>
            {
                settings.DefaultAdminUsername = Configuration["DefaultAdminUsername"];
                settings.DefaultAdminPassword = Configuration["DefaultAdminPassword"];
            });

            // Add MVC services to the services container.
            services.AddMvc();

            // Uncomment the following line to add Web API services which makes it easier to port Web API 2 controllers.
            // You will also need to add the Microsoft.AspNet.Mvc.WebApiCompatShim package to the 'dependencies' section of project.json.
            // services.AddWebApiConventions();
            
            // Add EF services to the service container
            services.AddEntityFramework()
                .AddSqlite()
                .AddDbContext<MusicStoreContext>(options => {
                    options.UseSqlite(Configuration["DbConnectionString"]);
                });

            // Add Identity services to the services container
            services.AddIdentity<ApplicationUser, IdentityRole>()
                    .AddEntityFrameworkStores<MusicStoreContext>()
                    .AddDefaultTokenProviders();

            // Uncomment the following line to add Web API services which makes it easier to port Web API 2 controllers.
            // You will also need to add the Microsoft.AspNet.Mvc.WebApiCompatShim package to the 'dependencies' section of project.json.
            // services.AddWebApiConventions();

            // Configure Auth
            services.Configure<AuthorizationOptions>(options =>
            {
                options.AddPolicy("app-ManageStore", new AuthorizationPolicyBuilder().RequireClaim("app-ManageStore", "Allowed").Build());
            });

            Mapper.CreateMap<AlbumChangeDto, Album>();
            Mapper.CreateMap<Album, AlbumChangeDto>();
            Mapper.CreateMap<Album, AlbumResultDto>();
            Mapper.CreateMap<AlbumResultDto, Album>();
            Mapper.CreateMap<Artist, ArtistResultDto>();
            Mapper.CreateMap<ArtistResultDto, Artist>();
            Mapper.CreateMap<Genre, GenreResultDto>();
            Mapper.CreateMap<GenreResultDto, Genre>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(LogLevel.Warning);
            
            // Initialize the sample data
            SampleData.InitializeMusicStoreDatabaseAsync(app.ApplicationServices).Wait();

            if (env.IsDevelopment()) {
                app.UseDeveloperExceptionPage();
            } else {
                app.UseExceptionHandler("/Home/Error");
            }

            app.UseIISPlatformHandler();
            
            // In dev mode, the JS/TS/etc is compiled and served dynamically and supports hot replacement.
            // In production, we assume you've used webpack to emit the prebuilt content to disk.
            if (env.IsDevelopment()) {
                app.UseWebpackDevMiddleware(new WebpackDevMiddlewareOptions {
                    HotModuleReplacement = true,
                    ReactHotModuleReplacement = true
                });
            }

            app.UseStaticFiles();

            app.UseMvc(routes => {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
                
                routes.MapSpaFallbackRoute(
                    name: "spa-fallback",
                    defaults: new { controller = "Home", action = "Index" });
            });
        }

        // Entry point for the application.
        public static void Main(string[] args) => Microsoft.AspNet.Hosting.WebApplication.Run<Startup>(args);
    }
}