// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
// Website: https://www.blazor.zone or https://argozhang.github.io/

using Microsoft.Extensions.Configuration;
using System;
using System.Collections.Generic;
using System.IO;

namespace Microsoft.Extensions.DependencyInjection
{
    internal static class IServiceCollectionExtensions
    {
        public static IServiceCollection AddConfiguration(this IServiceCollection services, string? cultureName = null)
        {
            var builder = new ConfigurationBuilder();
            var dirSeparator = Path.DirectorySeparatorChar;
            var file = Path.Combine(AppContext.BaseDirectory, $"..{dirSeparator}..{dirSeparator}..{dirSeparator}appsettings.json");
            builder.AddJsonFile(file, true, true);
            if (cultureName != null)
            {
                builder.AddInMemoryCollection(new Dictionary<string, string>()
                {
                    ["BootstrapBlazorOptions:DefaultCultureInfo"] = cultureName
                });
            }
            var config = builder.Build();
            services.AddSingleton<IConfiguration>(config);
            return services;
        }
    }
}
