using System;
using System.Linq;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Cors;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Ocelot.DependencyInjection;
using Ocelot.Middleware;
using Volo.Abp;
using Volo.Abp.AspNetCore.Serilog;
using Volo.Abp.Autofac;
using Volo.Abp.Localization;
using Volo.Abp.Modularity;
using Win_in.Sfs.Shared.Host;

namespace WebAppGateway;

[DependsOn(
typeof(AbpAutofacModule),
typeof(AbpAspNetCoreSerilogModule)
)]
public class WebAppGatewayHostModule : AbpModule
{

    public override void ConfigureServices(ServiceConfigurationContext context)
    {
        var configuration = context.Services.GetConfiguration();
        _ = context.Services.GetHostingEnvironment();
        context.SetConsoleTitleOfWebApp("Web.Gateway");

        ConfigureAuthentication(context, configuration);
        ConfigureCors(context, configuration);
        //ConfigureSwaggerServices(context);
        ConfigureLocalization();
        context.Services.AddOcelot(context.Services.GetConfiguration());
    }

    public override void OnApplicationInitialization(ApplicationInitializationContext context)
    {
        var app = context.GetApplicationBuilder();

        app.UseCorrelationId();
        app.UseRouting();
        app.UseCors();
        app.UseAuthentication();
        app.UseAbpClaimsMap();
        app.UseAuthorization();

        //app.UseSwagger();
        //app.UseSwaggerUI(options =>
        //{
        //    options.SwaggerEndpoint("/swagger/v1/swagger.json", "Business Service API");
        //});

        app.UseOcelot().Wait();
        app.UseAbpSerilogEnrichers();
    }

    private static void ConfigureAuthentication(ServiceConfigurationContext context, IConfiguration configuration)
    {
        context.Services.AddAuthentication("Bearer")
            .AddIdentityServerAuthentication(options =>
            {
                options.Authority = configuration["AuthServer:Authority"];
                options.RequireHttpsMetadata = false;
                options.ApiName = "WebAppGateway";
            });
    }

    /*
    private static void ConfigureSwaggerServices(ServiceConfigurationContext context)
    {
        context.Services.AddSwaggerGen(
            options =>
            {
                options.SwaggerDoc("v1", new OpenApiInfo { Title = "WebAppGateway Service API", Version = "v1" });
                options.DocInclusionPredicate((docName, description) => true);
            });
    }
    */

    private void ConfigureLocalization()
    {
        Configure<AbpLocalizationOptions>(options =>
        {
            options.Languages.Add(new LanguageInfo("en", "en", "English"));
            options.Languages.Add(new LanguageInfo("zh-Hans", "zh-Hans", "简体中文"));
        });
    }

    private static void ConfigureCors(ServiceConfigurationContext context, IConfiguration configuration)
    {
        var origins = configuration.GetSection("App:CorsOrigins").Get<string[]>();

        context.Services.AddCors(options =>
        {
            options.AddDefaultPolicy(builder =>
            {
                builder
                    .WithOrigins(
                            origins.Select(o => o.RemovePostFix("/"))
                            .ToArray()
                    )
                    .WithAbpExposedHeaders()
                    .SetIsOriginAllowedToAllowWildcardSubdomains()
                    .AllowAnyHeader()
                    .AllowAnyMethod()
                    .AllowCredentials();
            });
        });
    }
}