//System
using System;
using System.IO;
using System.Reflection;
//Microsoft
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.OpenApi.Models;
//Others
using MassTransit;
//FTP
using LCU.Api.Internal.FTP.Configuration;
using LCU.Api.Internal.FTP.Security;
using LCU.Api.Internal.FTP.Services.FtpOpertionServices;
using LCU.Api.Internal.FTP.Services;
using LCU.Api.Internal.FTP.Consumers;
using LCU.Library.Internal.LcuMassTransitModels;
using LCU.Library.Internal.LcuMassTransit;
namespace LCU.Api.Internal.FTP;

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

    public IConfiguration Configuration { get; }
    readonly string MyAllowSpecificOrigins = "_myAllowSpecificOrigins";

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();
        services.AddCors(options =>
        {
            options.AddPolicy(MyAllowSpecificOrigins,
                builder =>
                {
                    builder.WithOrigins("http://localhost:3000", "https://localhost:5001",
                            "http://lcu-internal.com", "https://lcu-internal.com").AllowAnyHeader()
                        .AllowAnyMethod();
                });
        });

        //Configurations
        FtpApiConfiguration ftpApiConfiguration = new FtpApiConfiguration();
        Configuration.GetSection("Primary").Bind(ftpApiConfiguration);
        services.AddSingleton(ftpApiConfiguration);
        services.AddHttpClient();

        var connectionConfiguration = MassTransitConfigurationSetUp.AddConnectionConfiguration(ref services, Configuration);
        var receiveEndpointConfiguration = MassTransitConfigurationSetUp.GetReceiveEndpointConfiguration(Configuration,
                                                                                               "FtpReceiveEndpoint");
        services.AddSingleton(receiveEndpointConfiguration);
        AddMassTransitServices(ref services, connectionConfiguration, receiveEndpointConfiguration);

        //Services
        services.AddScoped<IEnvironmentView, EnvironmentView>();
        services.AddScoped<IQueueFtpService, QueueFtpService>();
        services.AddScoped<IQueueSshFtpService, QueueSshFtpService>();
        services.AddScoped<IFtpService, FtpService>();
        services.AddScoped<IWinScpSftpUploadFileService, WinScpSftpUploadFileService>();
        services.AddScoped<IWinScpSftpDownloadFilesService, WinScpSftpDownloadFilesService>();
        services.AddScoped<IWinScpListDirectoryService, WinScpListDirectoryService>();
        services.AddScoped<ISshFtpService, SshFtpService>();
        services.AddScoped<IFileOperationsService, FileOperationsService>();

        // Register the Swagger generator, defining 1 or more Swagger documents
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "Ftp 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);
        });

        services.Configure<ApiBehaviorOptions>(options =>
        {
            options.SuppressModelStateInvalidFilter = true;
        });

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

        services.AddIdentity<IdentityUser, IdentityRole>()
            .AddDefaultTokenProviders();
    }

    public void AddMassTransitServices(ref IServiceCollection services,
                                       ConnectionConfiguration connectionConfiguration,
                                       ReceiveEndpointConfiguration receiveEndpointConfiguration)
    {
        services.AddMassTransit(x =>
        {
            x.AddConsumer<SftpConsumer>();

            x.UsingRabbitMq((context, cfg) =>
            {
                cfg.Host(connectionConfiguration.HostUrl, "/", host =>
                {
                    host.Username(connectionConfiguration.UserName);
                    host.Password(connectionConfiguration.Password);
                });

                cfg.ReceiveEndpoint(receiveEndpointConfiguration.ReceiveEndpoint, e =>
                {
                    e.ConfigureConsumer<SftpConsumer>(context);
                    e.SetQuorumQueue();
                });
            });
        });
        services.AddMassTransitHostedService();
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        // Enable middleware to serve generated Swagger as a JSON endpoint.
        app.UseSwagger();

        // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.), 
        // specifying the Swagger JSON endpoint.
        app.UseSwaggerUI(c =>
        {
            c.SwaggerEndpoint("/swagger/v1/swagger.json", "Ftp API");
        });

        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            // 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.UseAuthentication();
        app.UseCors(MyAllowSpecificOrigins);
        app.UseHttpsRedirection();
        app.UseRouting();
        app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            }
        );
    }
}