using Microsoft.Extensions.Configuration;

namespace OptionStudy.UnitApp
{

    /// <summary>
    /// 5.1.3 读取结构化配置信息
    /// </summary>
    public class LoadStructuredConfigTest : IDisposable
    {

        private readonly ITestOutputHelper? testOutput;
        public LoadStructuredConfigTest(ITestOutputHelperAccessor helperAccessor)
        {
            testOutput = helperAccessor.Output;
        }

        /// <summary>
        /// 读取结构键值对配置
        /// 关键点：以:分隔
        /// </summary>
        [Fact]
        public void ReadKeyValue_Test()
        {
            //配置字典
            var source = new Dictionary<string, string?>()
            {
                ["AppName"] = "MemoryAppName",
                ["AppVersion"] = "2.1.2.3",
                ["EMail:ReceiveAddress"] = "memory@163.com",
                ["EMail:Recipient"] = "memory",
            };

            var config = new ConfigurationBuilder().AddInMemoryCollection(source).Build();

            var appOption = new AppOption()
            {
                AppName = config["AppName"] ?? "",
                AppVersion = config["AppVersion"] ?? "",
            };

            var emailConfig = config.GetSection("EMail");
            var receiveMail = new ReceiveMailOption()
            {
                ReceiveAddress = emailConfig["ReceiveAddress"] ?? string.Empty,
                Recipient = emailConfig["Recipient"] ?? string.Empty,
            };
            //断言
            Assert.NotNull(appOption);
            Assert.Equal("MemoryAppName", appOption.AppName);
            Assert.Equal("2.1.2.3", appOption.AppVersion);

            //子配置节：采用扁平化处理
            Assert.NotNull(receiveMail);
            Assert.Equal("memory@163.com", receiveMail.ReceiveAddress);
            Assert.Equal("memory", receiveMail.Recipient);

            testOutput?.WriteLine("读取结构化配置，关键点是:分隔！");
        }

        public void Dispose()
        {

        }
    }
}