using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi.Models;
using Newtonsoft.Json.Converters;
using Serilog;
using CRIF.ACTion.Common.Parsers;
using CRIF.ACTion.Configuration;
using CRIF.ACTion.Decisioning;
using CRIF.ACTion.Loan;
using CRIF.ACTion.Loan.Individuals;
using CRIF.ACTion.Services.Crif;
using Landmark.OLA.Application.Common.Domain;
using Landmark.OLA.Application.Common.Security;
using Landmark.OLA.Application.Configuration;
using Landmark.OLA.Application.DataAccess;
using Landmark.OLA.Application.DataAccessLayer;
using Landmark.OLA.Application.Services;
using Landmark.OLA.Models;
using Landmark.OLA.Models.Addresses;
using Landmark.OLA.Models.Decisioning;
using Landmark.OLA.Models.Decisioning.Enums;
using Landmark.OLA.Models.Individuals;
using Landmark.OLA.Models.Loan;
using Landmark.OLA.Models.OnlineBanking;
using Landmark.OLA.Models.Vendor;
using OnlineBankingAuth.Communication;
using OnlineBankingAuth.Parsers;
using OnlineBankingAuth.Services;
using OnlineBankingAuth.Tokens;
using LCU.Library.Internal.Logging;
using LCU.Library.Internal.Logging.Middleware;
using LCU.Library.Internal.Logging.Models;
using LCU.Library.Internal.LcuHttpClient;
using Landmark.OLA.Application.Services.MicroApiServices;
using Landmark.OLA.Application.Services.Email;

namespace Landmark.OLA.Application
{
    public class Startup(IConfiguration configuration)
    {
        public IConfiguration Configuration { get; } = configuration;

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            var appConfig = new ApplicationSettings();
            Configuration.GetSection("Primary").Bind(appConfig);

            services.AddSingleton(appConfig);

            var loggerConfiguration = new LoggingConfiguration(appConfig.AppName,
                                                           appConfig.SeqKey,
                                                           appConfig.SeqUrl);
            var lcuLogging = new LcuLogging(loggerConfiguration);
            lcuLogging.UseLcuLogging();

            Log.Information($"{appConfig.AppName} Starting Up");

            services.AddLCUHttpServices();
            
            services.AddCors(options =>
            {
                options.AddPolicy("DevCors", b => b
                    .SetIsOriginAllowed(_ => true)
                    .AllowAnyHeader()
                    .AllowAnyMethod()
                    .AllowCredentials());

                options.AddPolicy("ProdCors", b => b
                    .WithOrigins(
                        "https://applydev.landmarkcu.com",
                        "https://applyqa.landmarkcu.com",
                        "https://apply.landmarkcu.com",
                        "https://qa-online-loan-app.apps.azure.lcu-internal.com",
                        "https://uat-online-loan-app.apps.azure.lcu-internal.com",
                        "https://prd-online-loan-app.apps.azure.lcu-internal.com",
                        "https://qa-apps.landmarkcu.com",
                        "https://uat-apps.landmarkcu.com",
                        "https://apps.landmarkcu.com")
                    .AllowAnyHeader()
                    .AllowAnyMethod()
                    .AllowCredentials());
            });
            
            services.AddControllers().AddNewtonsoftJson(o => o.SerializerSettings.Converters.Add(new StringEnumConverter()));

            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => false;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            //TODO #245: Disable in production?
            services.AddEndpointsApiExplorer();
            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "Landmark Loan API", Version = "v1" });
                // For this to work, I also had to check the generate xml box in build options.
                var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
                var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
                c.IncludeXmlComments(xmlPath, includeControllerXmlComments: true);
            });


            services.AddScoped<ICrifVendorClient, CrifVendorClient>();
            services.AddScoped<IStatus, Status>();

            services.Configure<DataAccessConnection>(options =>
             Configuration.GetSection("ApplicationStorage").Bind(options));
            services.AddSingleton<IDataClient, DataClient>();
            services.AddScoped<ILoanApplicationDataAccess, LoanApplicationDataAccess>();
            services.AddScoped<INotificationDao, NotificationDao>();
            services.AddScoped<IBranchDataAccess, BranchDataAccess>();
            services.AddScoped<IConfigurationAccess, ConfigurationAccess>();

            services.AddScoped<ICrifService, CrifService>();
            services.AddScoped<IWcfInspectorBehavior, WcfInspectorBehavior>();

            services.AddScoped<IResponseParser<Individual>, AddIndividualResponseParser>();
            services.AddScoped<IResponseParser<LoanApplication>, LoanApplicationResponseParser>();
            services.AddScoped<IResponseParser<DecisioningState>, DecisioningStateResponseParser>();
            services.AddScoped<IResponseParser<DecisioningDetails>, GetApplicationProductsResponseParser>();
            services.AddScoped<IResponseParser<SortedList<int, string>>, ConfigurationRequestResponseParser>();
            services.AddScoped<IResponseParser<Dictionary<string, string>>, ProductDetailsResponseParser>();
            services.AddScoped<IResponseParser<CustomFieldConfigs>, CustomFieldRequestResponseParser>();
            services.AddScoped<IResponseParser<DealershipAuthRequest>, DealershipResponseParser>();

            services.AddSingleton<UiSettings>();

            // Add USPS scopes
            services.AddScoped<IUspsVendorClient, USPS.Communication.UspsVendorClient>();
            services.AddScoped<USPS.Communication.IUspsService, USPS.Communication.UspsService>();

            services.AddScoped<USPS.Parsers.IResponseParser<Address>, USPS.Parsers.AddressValidationResponseParser>();
            services.Configure<ApplicationControlConfiguration>(options => Configuration.GetSection("ApplicationControl").Bind(options));

            services.Configure<CrifSettings>(options =>
                Configuration.GetSection("CrifSettings").Bind(options));

            services.Configure<BlobStorageSettings>(options =>
                Configuration.GetSection("BlobStorageSettings").Bind(options));

            services.Configure<BlobStorageConnectionSettings>(options =>
                Configuration.GetSection("BlobStorageConnectionSettings").Bind(options));

            services.Configure<DealershipEmailSettings>(options =>
                Configuration.GetSection("DealershipEmailSettings").Bind(options));

            services.AddSingleton<IBlobStorageAccess, BlobStorageAccess>();

            // Set up USPS
            services.Configure<USPS.Configuration.UspsSettings>(options =>
                Configuration.GetSection("UspsSettings").Bind(options));

            // Setup up Email
            services.Configure<NotificationsApiConfiguration>(options =>
                Configuration.GetSection("NotificationsApiConfiguration").Bind(options));
            services.AddScoped<INotificationsApiService, NotificationsApiService>();
            services.AddSingleton<IEmailTemplateService, EmailTemplateService>();

            // Setup up Core
            var coreSettings = new CoreSettings();
            Configuration.GetSection("CoreSettings").Bind(coreSettings);
            services.AddSingleton(coreSettings);
            services.AddScoped<ICoreService, CoreService>();
            services.AddScoped<IPdfService, PdfService>();

            // Set up SAML IdP scopes
            services.AddScoped<ITokenService, TokenService>();
            services.AddScoped<ISAMLParser<DISAMLAssertion>, SAMLParser>();

            // Set up SAML IdP configuration
            services.Configure<OnlineBankingAuth.Configuration.SecuritySettings>(options =>
            {
                Configuration.GetSection("SecuritySettings").Bind(options);
            });

            // Setup DI service
            services.AddScoped<IDigitalInsightVendorClient, DigitalInsightVendorClient>();
            services.AddScoped<IDigitalInsightService, DigitalInsightService>();
            services.AddScoped<IAuthTokenParser, AuthTokenParser>();

            //Set up Authentication
            services
                .AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                // AzureAD config
                .AddAzureAdBearer(options => Configuration.Bind("AzureActiveDirectory", options));

            services.AddAuthorization();
            services.AddDistributedMemoryCache();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, ApplicationSettings appSettings)
        {
            Log.Information("Configuring...");

            var policyCollection = new HeaderPolicyCollection()
                .AddDefaultSecurityHeaders()
                .AddCustomHeader("Cache-Control", "no-cache")
                .AddCustomHeader("Arr-Disable-Session-Affinity", "true");

            app.UseCookiePolicy(new CookiePolicyOptions
            {
                CheckConsentNeeded = context => false,
                MinimumSameSitePolicy = SameSiteMode.None
            });


            app.UseSecurityHeaders(policyCollection);

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "Landmark Loan API"));

                app.UseMiddleware<RequestResponseLoggingMiddleware>();
                app.UseSerilogRequestLogging(options =>
                {
                    options.EnrichDiagnosticContext = RequestResponseLoggingMiddleware.RequestDataParser.EnrichFromRequest;
                });
            }
            else
            {
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();
            
            app.UseRouting();


            if (Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT")?.Equals("Development", StringComparison.OrdinalIgnoreCase) ?? false)
                app.UseCors("DevCors");
            else
                app.UseCors("ProdCors");

            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints => endpoints.MapControllers());
        }
	}
}