using System;
using Microsoft.AspNet.Authorization;
using Microsoft.AspNet.Builder;
using Microsoft.AspNet.Diagnostics;
using Microsoft.AspNet.Diagnostics.Entity;
using Microsoft.AspNet.Http;
using Microsoft.AspNet.Identity.EntityFramework;
using Microsoft.Data.Entity;
using Microsoft.Framework.Caching.Memory;
using Microsoft.Framework.Configuration;
using Microsoft.Framework.DependencyInjection;
using Microsoft.Framework.Logging;
using Microsoft.Dnx.Runtime;
using MusicStore.Components;
using MusicStore.Models;

namespace MusicStore
{
    public class Startup
    {
        private readonly Platform _platform;

        public Startup(IApplicationEnvironment env, IRuntimeEnvironment runtimeEnvironment)
        {
            //Below code demonstrates usage of multiple configuration sources. For instance a setting say 'setting1' is found in both the registered sources,
            //then the later source will win. By this way a Local config can be overridden by a different setting while deployed remotely.
            var builder = new ConfigurationBuilder(env.ApplicationBasePath)
                        .AddJsonFile("config.json")
                        .AddEnvironmentVariables(); //All environment variables in the process's context flow in as configuration values.

            Configuration = builder.Build();
            _platform = new Platform(runtimeEnvironment);
        }

        public IConfiguration Configuration { get; private set; }

        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<AppSettings>(Configuration.GetSection("AppSettings"));

            var useInMemoryStore = !_platform.IsRunningOnWindows || _platform.IsRunningOnMono || _platform.IsRunningOnNanoServer;

            // Add EF services to the services container
            if (useInMemoryStore)
            {
                services.AddEntityFramework()
                        .AddInMemoryDatabase()
                        .AddDbContext<MusicStoreContext>(options =>
                            options.UseInMemoryDatabase());
            }
            else
            {
                services.AddEntityFramework()
                        .AddSqlServer()
                        .AddDbContext<MusicStoreContext>(options =>
                            options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));
            }

            // Add Identity services to the services container
            services.AddIdentity<ApplicationUser, IdentityRole>(options =>
                    {
                        options.Cookies.ApplicationCookie.AccessDeniedPath = new PathString("/Home/AccessDenied");
                    })
                    .AddEntityFrameworkStores<MusicStoreContext>()
                    .AddDefaultTokenProviders();

            services.AddFacebookAuthentication(options =>
            {
                options.AppId = "550624398330273";
                options.AppSecret = "10e56a291d6b618da61b1e0dae3a8954";
            });

            services.AddGoogleAuthentication(options =>
            {
                options.ClientId = "977382855444.apps.googleusercontent.com";
                options.ClientSecret = "NafT482F70Vjj_9q1PU4B0pN";
            });

            services.AddTwitterAuthentication(options =>
            {
                options.ConsumerKey = "9J3j3pSwgbWkgPFH7nAf0Spam";
                options.ConsumerSecret = "jUBYkQuBFyqp7G3CUB9SW3AfflFr9z3oQBiNvumYy87Al0W4h8";
            });

            services.AddMicrosoftAccountAuthentication(options =>
            {
                options.Caption = "MicrosoftAccount - Requires project changes";
                options.ClientId = "000000004012C08A";
                options.ClientSecret = "GaMQ2hCnqAC6EcDLnXsAeBVIJOLmeutL";
            });

            services.AddCors(options =>
            {
                options.AddPolicy("CorsPolicy", builder =>
                {
                    builder.WithOrigins("http://example.com");
                });
            });

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

            //Add InMemoryCache
            services.AddSingleton<IMemoryCache, MemoryCache>();

            // Add session related services.
            services.AddCaching();
            services.AddSession();

            // Add the system clock service
            services.AddSingleton<ISystemClock, SystemClock>();

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

        //This method is invoked when ASPNET_ENV is 'Development' or is not defined
        //The allowed values are Development,Staging and Production
        public void ConfigureDevelopment(IApplicationBuilder app, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(minLevel: LogLevel.Warning);

            // StatusCode pages to gracefully handle status codes 400-599.
            app.UseStatusCodePagesWithRedirects("~/Home/StatusCodePage");

            // Display custom error page in production when error occurs
            // During development use the ErrorPage middleware to display error information in the browser
            app.UseDeveloperExceptionPage();

            app.UseDatabaseErrorPage(DatabaseErrorPageOptions.ShowAll);

            // Add the runtime information page that can be used by developers
            // to see what packages are used by the application
            // default path is: /runtimeinfo
            app.UseRuntimeInfoPage();

            Configure(app);
        }

        //This method is invoked when ASPNET_ENV is 'Staging'
        //The allowed values are Development,Staging and Production
        public void ConfigureStaging(IApplicationBuilder app, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(minLevel: LogLevel.Warning);

            // StatusCode pages to gracefully handle status codes 400-599.
            app.UseStatusCodePagesWithRedirects("~/Home/StatusCodePage");

            app.UseExceptionHandler("/Home/Error");

            Configure(app);
        }

        //This method is invoked when ASPNET_ENV is 'Production'
        //The allowed values are Development,Staging and Production
        public void ConfigureProduction(IApplicationBuilder app, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(minLevel: LogLevel.Warning);

            // StatusCode pages to gracefully handle status codes 400-599.
            app.UseStatusCodePagesWithRedirects("~/Home/StatusCodePage");

            app.UseExceptionHandler("/Home/Error");

            Configure(app);
        }

        public void Configure(IApplicationBuilder app)
        {
            // Configure Session.
            app.UseSession();

            // Add static files to the request pipeline
            app.UseStaticFiles();

            // Add cookie-based authentication to the request pipeline
            app.UseIdentity();

            app.UseFacebookAuthentication();

            app.UseGoogleAuthentication();

            app.UseTwitterAuthentication();

            // The MicrosoftAccount service has restrictions that prevent the use of http://localhost:5001/ for test applications.
            // As such, here is how to change this sample to uses http://ktesting.com:5001/ instead.

            // Edit the Project.json file and replace http://localhost:5001/ with http://ktesting.com:5001/.

            // From an admin command console first enter:
            // notepad C:\Windows\System32\drivers\etc\hosts
            // and add this to the file, save, and exit (and reboot?):
            // 127.0.0.1 ktesting.com

            // Then you can choose to run the app as admin (see below) or add the following ACL as admin:
            // netsh http add urlacl url=http://ktesting:5001/ user=[domain\user]

            // The sample app can then be run via:
            // dnx . web
            app.UseMicrosoftAccountAuthentication();

            // Add MVC to the request pipeline
            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "areaRoute",
                    template: "{area:exists}/{controller}/{action}",
                    defaults: new { action = "Index" });

                routes.MapRoute(
                    name: "default",
                    template: "{controller}/{action}/{id?}",
                    defaults: new { controller = "Home", action = "Index" });

                routes.MapRoute(
                    name: "api",
                    template: "{controller}/{id?}");
            });

            //Populates the MusicStore sample data
            SampleData.InitializeMusicStoreDatabaseAsync(app.ApplicationServices).Wait();
        }
    }
}