using Microsoft.Extensions.Configuration;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;

namespace OptionStudy.Next
{
    /// <summary>
    /// 5.2 配置模型 ConfigurationManager
    ///  ConfigurationManager 表示一个可动态改变的配置，统一了IConfigurationt和IConfigurationBuilder,Build方法返回的就是自身。
    ///  当 Source 属性体现的配置源发生变化时，基自身维护的配置状态将自动更新。
    ///  ASP.NET Core 框架使用的就是这个对象，特别是最小API模式下。
    /// </summary>
    public class ConfigurationManagerTest: IDisposable
    {
        private readonly ITestOutputHelper testOutput;

        private IDictionary<string, string?> memoryData = new Dictionary<string, string?>()
        {
            ["AppName"] = "MemoryAppName",
            ["AppVersion"] = "0.0.0.1",
            ["EMail:ReceiveAddress"] = "memory@163.com",
            ["EMail:Recipient"] = "memory",
        };

        public ConfigurationManagerTest(ITestOutputHelper testOutputHelper)
        {
            testOutput = testOutputHelper;
        }

        /// <summary>
        /// 使用配置管理器
        /// 相当于 ConfigurationBuilder 和 IConfiguration（IConfigurationRoot）的 “合体”
        /// </summary>
        [Fact]
        public void UseManager_Test()
        {
            ConfigurationManager manager = new ConfigurationManager();
            manager.AddInMemoryCollection(memoryData);

            var childerns = manager.GetChildren();

            Assert.Equal(3, childerns.Count());
        }

        public void Dispose()
        {

        }
    }
}