using Microsoft.Extensions.DependencyInjection;
using Modules.Rating.Api.Database;
using Modules.Rating.Api.Repositories;
using MongoDB.Driver;

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

        public static IServiceCollection AddRates(this IServiceCollection services, string connectionString, string? databaseName)
        {
            AddMongoDb(services, connectionString, databaseName);
            //services.AddScoped<MongoDbContext>();
            services.AddScoped(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<RateRepository>();
        }

        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));
        }
    }
}