using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Falcon.SugarApi;

namespace Falcon.SugarApi.Test
{
    [TestClass]
    public class ObjectExtendTest
    {
        [TestMethod]
        public void CloneToTest() {
            var s = new SourceClass { };
            var t = new TargetClass { };
            t.ica.ItemA="itemb";

            Assert.IsTrue(t.ica.ItemA=="itemb");

            var r = s.CloneTo(t);

            Assert.IsNotNull(s);
            Assert.IsNotNull(r);
            Assert.IsNotNull(t);
            Assert.IsTrue(s.ia==t.ia,$"a.id:{s.ia},t.ia:{t.ia}");
            Assert.IsTrue(t.ia==1);
            Assert.IsTrue(s.sa==t.sa);
            Assert.IsTrue(s.sc=="sc");
            Assert.IsTrue(t.sd=="sd");
            Assert.IsTrue(s.ica.ItemA=="itema");
            Assert.IsTrue(t.ica.ItemA=="itema");
            Assert.IsTrue(t.ica.Equals(s.ica));
        }

        [TestMethod]
        public void ChangeTypeTest() {
            int s = 1;
            var t = s.ChangeType(typeof(int));
            Console.WriteLine(t.GetType().FullName);
            Assert.IsTrue(t.GetType().Equals(typeof(int)));
        }
        /// <summary>
        /// 测试对象为null则会抛出异常
        /// </summary>
        [TestMethod]
        public void ThrowNullExceptionWhenNullTest() {
            var obj = new object();
            obj.ThrowNullExceptionWhenNull();
            obj=null;
            Assert.ThrowsException<ArgumentNullException>(() => obj.ThrowNullExceptionWhenNull());
        }

        /// <summary>
        /// 测试对象属性扩展
        /// </summary>
        [TestMethod]
        public void ExtendPropertyTest() {
            var obj = new ExtendPropertyTestClass {
                Id=1,Name="Falcon",Sex=null,Count="count"
            };
            var ep = obj.ExpandProperties();
            Assert.IsNotNull(ep);
            Assert.IsTrue(ep.Count()==4);
            Assert.IsTrue(ep.Select(m => m.Name).Distinct().Count()==4);
            foreach(var p in ep) {
                if(p.Name=="Id") {
                    Assert.IsTrue(p.Type==typeof(int));
                    Assert.IsTrue(p.Value.Equals(obj.Id));
                    continue;
                }
                if(p.Name=="Name") {
                    Assert.IsTrue(p.Type==typeof(string));
                    Assert.IsTrue(p.Value.Equals(obj.Name));
                    continue;
                }
                if(p.Name=="Sex") {
                    Assert.IsTrue(p.Type==typeof(string));
                    Assert.IsTrue(p.Value==null);
                    continue;
                }
                if(p.Name=="Count") {
                    Assert.IsTrue(p.Type==typeof(string));
                    Assert.IsTrue(p.Value=="count");
                    continue;
                }
            }
        }

        /// <summary>
        /// 是否为空测试
        /// </summary>
        [TestMethod]
        public void IsNullTest() {
            object obj = null;
            Assert.IsTrue(obj.IsNull());
            Assert.IsFalse(obj.IsNotNull());

            obj=new object();
            Assert.IsTrue(obj.IsNotNull());
            Assert.IsFalse(obj.IsNull());

            object? obj1 = null;
            Assert.IsTrue(obj1.IsNull());
            Assert.IsFalse(obj1.IsNotNull());

            obj1=new object();
            Assert.IsTrue(obj1.IsNotNull());
            Assert.IsFalse(obj1.IsNull());
        }
    }
    /// <summary>
    /// 扩展属性测试类
    /// </summary>
    public class ExtendPropertyTestClass
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string? Sex { get; set; }
        public string Count { private get; set; }
    }

    public class SourceClass
    {
        public int ia { get; set; } = 1;
        public string sa { get; set; } = "sa";
        public string sc { get; set; } = "sc";
        public ItemClass ica { get; set; } = new ItemClass();
    }

    public class TargetClass
    {
        public int ia { get; set; }
        public string sa { get; set; }
        public string sd { get; set; } = "sd";
        public ItemClass ica { get; set; } = new ItemClass();
    }

    public class ItemClass
    {
        public string ItemA { get; set; } = "itema";
    }
}