using DevExpress.ExpressApp.Security;
using DevExpress.ExpressApp.ApplicationBuilder;
using DevExpress.ExpressApp.Blazor.ApplicationBuilder;
using DevExpress.ExpressApp.Blazor.Services;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Components.Server.Circuits;
using DurnyklyYol.Blazor.Server.Services;
using DevExpress.Persistent.BaseImpl.PermissionPolicy;
using System.Text;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Authorization;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;
using Microsoft.AspNetCore.OData;
using DevExpress.ExpressApp.WebApi.Services;
using DurnyklyYol.WebApi.JWT;
using DevExpress.ExpressApp.Security.Authentication.ClientServer;
using DurnyklyYol.Blazor.Server.OData;
using Microsoft.AspNetCore.OData.Query.Validator;

namespace DurnyklyYol.Blazor.Server;

public class Startup {
    public Startup(IConfiguration configuration) {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
    public void ConfigureServices(IServiceCollection services) {
        services.AddSingleton(typeof(Microsoft.AspNetCore.SignalR.HubConnectionHandler<>), typeof(ProxyHubConnectionHandler<>));

        services.AddRazorPages();
        services.AddServerSideBlazor();
        services.AddHttpContextAccessor();
        services.AddScoped<IAuthenticationTokenProvider, JwtTokenProviderService>();
        services.AddScoped<CircuitHandler, CircuitHandlerProxy>();
        services.AddXaf(Configuration, builder => {
            builder.UseApplication<DurnyklyYolBlazorApplication>();

            builder.AddXafWebApi(webApiBuilder => {
                webApiBuilder.AddXpoServices();

                webApiBuilder.ConfigureOptions(options => {
                    // Make your business objects available in the Web API and generate the GET, POST, PUT, and DELETE HTTP methods for it.
                    // options.BusinessObject<YourBusinessObject>();
                    options.BusinessObject<Module.BusinessObjects.Contact>();
                });
            });

            builder.Modules
                .AddConditionalAppearance()
                .AddFileAttachments()
                .AddReports(options => {
                    options.EnableInplaceReports = true;
                    options.ReportDataType = typeof(DevExpress.Persistent.BaseImpl.ReportDataV2);
                    options.ReportStoreMode = DevExpress.ExpressApp.ReportsV2.ReportStoreModes.XML;
                })
                .AddValidation(options => {
                    options.AllowValidationDetailsAccess = false;
                })
                .AddViewVariants()
                .Add<DurnyklyYol.Module.DurnyklyYolModule>()
            	.Add<DurnyklyYolBlazorModule>();
            builder.ObjectSpaceProviders
                .AddSecuredXpo((serviceProvider, options) => {
                    string connectionString = null;
                    if(Configuration.GetConnectionString("ConnectionString") != null) {
                        connectionString = Configuration.GetConnectionString("ConnectionString");
                    }
#if EASYTEST
                    if(Configuration.GetConnectionString("EasyTestConnectionString") != null) {
                        connectionString = Configuration.GetConnectionString("EasyTestConnectionString");
                    }
#endif
                    ArgumentNullException.ThrowIfNull(connectionString);
                    options.ConnectionString = connectionString;
                    options.ThreadSafe = true;
                    options.UseSharedDataStoreProvider = true;
                })
                .AddNonPersistent();
            builder.Security
                .UseIntegratedMode(options => {
                    options.Lockout.Enabled = true;

                    options.RoleType = typeof(PermissionPolicyRole);
                    // ApplicationUser descends from PermissionPolicyUser and supports the OAuth authentication. For more information, refer to the following topic: https://docs.devexpress.com/eXpressAppFramework/402197
                    // If your application uses PermissionPolicyUser or a custom user type, set the UserType property as follows:
                    options.UserType = typeof(DurnyklyYol.Module.BusinessObjects.ApplicationUser);
                    // ApplicationUserLoginInfo is only necessary for applications that use the ApplicationUser user type.
                    // If you use PermissionPolicyUser or a custom user type, comment out the following line:
                    options.UserLoginInfoType = typeof(DurnyklyYol.Module.BusinessObjects.ApplicationUserLoginInfo);
                    options.UseXpoPermissionsCaching();
                    options.Events.OnSecurityStrategyCreated += securityStrategy => {
                        // Use the 'PermissionsReloadMode.NoCache' option to load the most recent permissions from the database once
                        // for every Session instance when secured data is accessed through this instance for the first time.
                        // Use the 'PermissionsReloadMode.CacheOnFirstAccess' option to reduce the number of database queries.
                        // In this case, permission requests are loaded and cached when secured data is accessed for the first time
                        // and used until the current user logs out. 
                        // See the following article for more details: https://docs.devexpress.com/eXpressAppFramework/DevExpress.ExpressApp.Security.SecurityStrategy.PermissionsReloadMode.
                        ((SecurityStrategy)securityStrategy).PermissionsReloadMode = PermissionsReloadMode.NoCache;
                    };
                })
                .AddPasswordAuthentication(options => {
                    options.IsSupportChangePassword = true;
                });
        });
        var authentication = services.AddAuthentication(options => {
            options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
        });
        authentication.AddCookie(options => {
            options.LoginPath = "/LoginPage";
        });
        authentication.AddJwtBearer(options => {
            options.TokenValidationParameters = new TokenValidationParameters() {
                ValidateIssuerSigningKey = true,
                //ValidIssuer = Configuration["Authentication:Jwt:Issuer"],
                //ValidAudience = Configuration["Authentication:Jwt:Audience"],
                ValidateIssuer = false,
                ValidateAudience = false,
                IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Authentication:Jwt:IssuerSigningKey"]))
            };
        });
        services.AddAuthorization(options => {
            options.DefaultPolicy = new AuthorizationPolicyBuilder(
                JwtBearerDefaults.AuthenticationScheme)
                    .RequireAuthenticatedUser()
                    .RequireXafAuthentication()
                    .Build();
        });

        services
            .AddControllers()
            .AddOData((options, serviceProvider) => {
                options
                    .AddRouteComponents("api/odata", new EdmModelBuilder(serviceProvider).GetEdmModel(),
                    odataServices => {
                        odataServices.AddSingleton<ODataQueryValidator, MyODataQueryValidator>();
                    })
                    .EnableQueryFeatures(100);
            });

        services.AddSwaggerGen(c => {
            c.EnableAnnotations();
            c.SwaggerDoc("v1", new OpenApiInfo {
                Title = "DurnyklyYol API",
                Version = "v1",
                Description = @"Use AddXafWebApi(options) in the DurnyklyYol.Blazor.Server\Startup.cs file to make Business Objects available in the Web API."
            });
            c.AddSecurityDefinition("JWT", new OpenApiSecurityScheme() {
                Type = SecuritySchemeType.Http,
                Name = "Bearer",
                Scheme = "bearer",
                BearerFormat = "JWT",
                In = ParameterLocation.Header
            });
            c.AddSecurityRequirement(new OpenApiSecurityRequirement() {
                {
                    new OpenApiSecurityScheme() {
                        Reference = new OpenApiReference() {
                            Type = Microsoft.OpenApi.Models.ReferenceType.SecurityScheme,
                            Id = "JWT"
                        }
                    },
                    new string[0]
                },
            });
        });

        services.Configure<Microsoft.AspNetCore.Mvc.JsonOptions>(o => {
            //The code below specifies that the naming of properties in an object serialized to JSON must always exactly match
            //the property names within the corresponding CLR type so that the property names are displayed correctly in the Swagger UI.
            //XPO is case-sensitive and requires this setting so that the example request data displayed by Swagger is always valid.
            //Comment this code out to revert to the default behavior.
            //See the following article for more information: https://learn.microsoft.com/en-us/dotnet/api/system.text.json.jsonserializeroptions.propertynamingpolicy
            o.JsonSerializerOptions.PropertyNamingPolicy = null;
        });
    }

    // 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();
            app.UseSwagger();
            app.UseSwaggerUI(c => {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "DurnyklyYol WebApi v1");
            });
        }
        else {
            app.UseExceptionHandler("/Error");
            // The default HSTS value is 30 days. To change this for production scenarios, see: https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }
        app.UseHttpsRedirection();
        app.UseRequestLocalization();
        app.UseStaticFiles();
        app.UseRouting();
        app.UseAuthentication();
        app.UseAuthorization();
        app.UseXaf();
        app.UseEndpoints(endpoints => {
            endpoints.MapXafEndpoints();
            endpoints.MapBlazorHub();
            endpoints.MapFallbackToPage("/_Host");
            endpoints.MapControllers();
        });
    }
}