using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.DataProtection;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Console;
using Microsoft.Extensions.Options;
using Moonlight.Api.Configuration;
using Moonlight.Shared.Http;
using Moonlight.Api.Helpers;
using Moonlight.Api.Implementations;
using Moonlight.Api.Interfaces;
using Moonlight.Api.Services;

namespace Moonlight.Api.Startup;

public partial class Startup
{
    private static void AddBase(WebApplicationBuilder builder)
    {
        // Create the base directory
        Directory.CreateDirectory("storage");

        // Hook up source-generated serialization
        builder.Services.AddControllers().AddJsonOptions(options =>
        {
            options.JsonSerializerOptions.TypeInfoResolverChain.Add(SerializationContext.Default);
        });

        // Configure logging
        builder.Logging.ClearProviders();
        builder.Logging.AddConsole(options => { options.FormatterName = nameof(AppConsoleFormatter); });
        builder.Logging.AddConsoleFormatter<AppConsoleFormatter, ConsoleFormatterOptions>();

        // Application service
        builder.Services.AddSingleton<ApplicationService>();
        builder.Services.AddHostedService(sp => sp.GetRequiredService<ApplicationService>());

        // Diagnose
        builder.Services.AddSingleton<DiagnoseService>();
        builder.Services.AddSingleton<IDiagnoseProvider, UpdateDiagnoseProvider>();

        // Frontend
        builder.Services.AddOptions<FrontendOptions>().BindConfiguration("Moonlight:Frontend");
        builder.Services.AddScoped<FrontendService>();

        // HTTP Client
        builder.Services.AddHttpClient();

        // Version fetching configuration
        builder.Services.AddOptions<VersionOptions>().BindConfiguration("Moonlight:Version");
        builder.Services.AddSingleton<VersionService>();

        // Container Helper Options
        builder.Configuration.GetSection("Moonlight:ContainerHelper").Bind(builder.Configuration);
        
        builder.Services.AddOptions<ContainerHelperOptions>().BindConfiguration("Moonlight:ContainerHelper");
        builder.Services.AddSingleton<ContainerHelperService>();
        
        builder.Services.AddHttpClient("ContainerHelper", (provider, client) =>
        {
            var options = provider.GetRequiredService<IOptions<ContainerHelperOptions>>();
            client.BaseAddress =
                new Uri(options.Value.IsEnabled ? options.Value.Url : "http://you-should-fail.invalid");
        });

        // User management services
        builder.Services.AddScoped<UserDeletionService>();
        builder.Services.AddScoped<UserLogoutService>();

        // Settings options
        builder.Services.AddOptions<SettingsOptions>().BindConfiguration("Moonlight:Settings");
        builder.Services.AddScoped<SettingsService>();

        // Setup key loading
        var keysDirectory = new DirectoryInfo(Path.Combine("storage", "keys"));
        builder.Services.AddDataProtection().PersistKeysToFileSystem(keysDirectory);
    }

    private static void UseBase(WebApplication application)
    {
        application.UseRouting();
    }

    private static void MapBase(WebApplication application)
    {
        application.MapControllers();

        var options = application.Services.GetRequiredService<IOptions<FrontendOptions>>();

        if (options.Value.Enabled)
            application.MapFallbackToFile("index.html");
    }
}