using Microsoft.Extensions.DependencyInjection;
using Modules.Library.Application.Gateways;
using Modules.Library.Database.Database;
using Modules.Library.Database.GatewaysImplementations;
using Modules.Library.Database.Repositories;
using MongoDB.Driver;

namespace Modules.Library.Database;

public static class ServiceCollectionExtensions
{
    public static IServiceCollection AddDatabase(this IServiceCollection services, string connectionString)
    {
        AddMongoDb(services, connectionString);
        services.AddScoped<MongoDbContext>(q =>
        {
            var context = new MongoDbContext(q.GetRequiredService<IMongoDatabase>());
            context.Initialize();
            return context;
        });
        AddRepositories(services);
        AddGateways(services);
        return services;
    }

    public static IServiceCollection AddDatabase(this IServiceCollection services, string connectionString, string? databaseName)
    {
        AddMongoDb(services, connectionString, databaseName);
        //services.AddScoped<MongoDbContext>();
        services.AddScoped<MongoDbContext>(q =>
        {
            var context = new MongoDbContext(q.GetRequiredService<IMongoDatabase>());
            context.Initialize();
            return context;
        });
        AddRepositories(services);
        AddGateways(services);
        return services;
    }

    private static void AddRepositories(IServiceCollection services)
    {
        services.AddScoped<AnimeTitleRepository>();
        services.AddScoped<GenreRepository>();
        services.AddScoped<LanguageRepository>();
        services.AddScoped<MediaInfoRepository>();
    }

    private static void AddGateways(IServiceCollection services)
    {
        services.AddScoped<IAnimeTitleGateway, AnimeTitleGateway>();
        services.AddScoped<IGenreGateway, GenreGateway>();
        services.AddScoped<ILanguageGateway, LanguageGateway>();
        //services.AddScoped<IMediaInfoGateway, MediaInfoGateway>();
    }

    private static void AddMongoDb(this IServiceCollection services, string? connectionString)
    {
        if (string.IsNullOrWhiteSpace(connectionString)) throw new ArgumentNullException(nameof(connectionString));
        services.AddSingleton(new MongoClient(connectionString));
    }

    private static void AddMongoDb(IServiceCollection services, string? connectionString, string? databaseName)
    {
        if (string.IsNullOrWhiteSpace(connectionString)) throw new ArgumentNullException(nameof(connectionString));
        if (string.IsNullOrWhiteSpace(databaseName)) throw new ArgumentNullException(nameof(databaseName));
        services.AddSingleton(new MongoClient(connectionString).GetDatabase(databaseName));
    }
}