using Vit.Extensions;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Vit.Core.Util.ComponentModel.Data;
using Vit.Linq.Query;
using Vit.Core.Util.ComponentModel.Query;
using static Vit.Linq.MsTest.DataSource;

namespace Vit.Linq.MsTest
{
    [TestClass]
    public class IQueryableTest
    {


        #region (x.2)DataFilter        
        [TestMethod]
        public void TestDataFilter()
        {
            var query = DataSource.GetIQueryable();

            //操作符。可为 "=", "!=", ">", "<" , ">=", "<=", "Contains", "NotContains", "StartsWith", "EndsWith", "IsNullOrEmpty", "IsNotNullOrEmpty", "In", "NotIn"


            #region (x.0) Count ToList ToArray
            {

                int count = query.IQueryable_Count();

                var list1 = query.IQueryable_ToList<ModelA>();
                var list2 = query.IQueryable_ToList();

                var array1 = query.IQueryable_ToArray<ModelA>();
                var array2 = query.IQueryable_ToArray();               
            }
            #endregion

            #region (x.1)  =
            {

                //(x.x.1)
                {
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "id", opt = "=", value = 10 } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 1);
                    Assert.AreEqual(result[0].id, 10);
                }

                //(x.x.2) == null
                {
                    var item = query.IQueryable_Skip(10).IQueryable_FirstOrDefault<ModelA>();
                    var pid = item.pid;
                    item.pid = null;

                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "pid", opt = "=", value = null } }).IQueryable_FirstOrDefault<ModelA>();
                    Assert.AreEqual(result?.id, 10);
                    item.pid = pid;
                }
            }
            #endregion


            #region (x.2)  !=
            {
                //(x.x.1)
                {
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "id", opt = "!=", value = 10 } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 999);
                }

                //(x.x.2) != null
                {
                    var item = query.IQueryable_Skip(10).IQueryable_FirstOrDefault<ModelA>();
                    var pid = item.pid;
                    item.pid = null;

                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "pid", opt = "!=", value = null } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 999);
                    item.pid = pid;
                }
            }
            #endregion

            #region (x.3)  > <
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "id", opt = ">", value = 10 }, new DataFilter { field = "id", opt = "<", value = 20 } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 9);
            }
            #endregion

            #region (x.4)  >= <=
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "id", opt = ">=", value = 10 }, new DataFilter { field = "id", opt = "<=", value = 20 } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 11);
            }
            #endregion


            #region (x.5)  Contains
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "Contains", value = "987" } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 1);
                Assert.AreEqual(result[0].id, 987);
            }
            #endregion

            #region (x.x)  NotContains
            {

                //(x.x.1)
                {
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "NotContains", value = "987" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 999);
                }


                //(x.x.2)
                {
                    var item = query.IQueryable_Where(
                        new[] { new DataFilter { field = "name", opt = "Contains",value="987" } }
                        ).IQueryable_FirstOrDefault<ModelA>();
                    var oriName = item.name;

                    item.name = null;
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "NotContains", value = "987" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 1000);
                    item.name = oriName;
                }

                //(x.x.3)
                {
                    var item = query.IQueryable_Where(
                        new[] { new DataFilter { field = "name", opt = "Contains", value = "987" } }
                        ).IQueryable_FirstOrDefault<ModelA>();
                    var oriName = item.name;

                    item.name = "";
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "NotContains", value = "987" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 1000);
                    item.name = oriName;
                }
            }
            #endregion

            #region (x.6)  StartsWith
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "StartsWith", value = "name98" } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 11);
            }
            #endregion

            #region (x.7)  EndsWith
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "EndsWith", value = "987" } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 1);
            }
            #endregion

            #region (x.x)  IsNullOrEmpty
            {
                var item = query.IQueryable_Skip(10).IQueryable_FirstOrDefault<ModelA>();
                var oriName = item.name;

                //(x.x.1)
                {
                    item.name = null;
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "IsNullOrEmpty" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 1);
                    item.name = oriName;
                }
                //(x.x.2)
                {
                    item.name = "";
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "IsNullOrEmpty" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 1);
                    item.name = oriName;
                }
            }
            #endregion

            #region (x.x)  IsNotNullOrEmpty
            {
                var item = query.IQueryable_Skip(10).IQueryable_FirstOrDefault<ModelA>();
                var oriName = item.name;

                //(x.x.1)
                {
                    item.name = null;
                    var result = query.IQueryable_Where(
                        new[] { new DataFilter { field = "name", opt = "IsNotNullOrEmpty" } }
                        )
                        .IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 999);
                    item.name = oriName;
                }
                //(x.x.2)
                {
                    item.name = "";
                    var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "IsNotNullOrEmpty" } }).IQueryable_ToList<ModelA>();
                    Assert.AreEqual(result.Count, 999);
                    item.name = oriName;
                }
            }
            #endregion

            #region (x.8)  In 1
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "id", opt = "In", value = new int[] { 3, 4, 5 } } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 3);
            }
            #endregion

            #region (x.9)  In 2
            {
                query.IQueryable_FirstOrDefault<ModelA>().name = null;
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "In", value = new[] { "name3", "name4", null } } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 3);
            }
            #endregion

            #region (x.10)  NotIn 
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "name", opt = "NotIn", value = new[] { "name3", "name4", null } } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 997);
            }
            #endregion


            #region (x.11)  多级field
            {
                var result = query.IQueryable_Where(new[] { new DataFilter { field = "b1.name", opt = "=", value = "name987_b1" } }).IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 1);
                Assert.AreEqual(result[0].id, 987);
            }
            #endregion

        }

        #endregion



        #region (x.3)TestSortAndPage        
        [TestMethod]
        public void TestSortAndPage()
        {
            var query = GetIQueryable();

            #region (x.1)
            {
                var result = query
                    .IQueryable_Sort(new[] {
                        new SortItem { field = "b1.pid", asc = false },
                        new SortItem { field = "id", asc = true }
                    })
                    .IQueryable_Page(new PageInfo { pageIndex = 1, pageSize = 10 })
                    .IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 10);
                Assert.AreEqual(result[0].id, 990);
            }
            #endregion


            #region (x.2)
            {
                var result = query
                    .IQueryable_Sort("id", false)
                    .IQueryable_Page(2, 10)
                    .IQueryable_ToList<ModelA>();
                Assert.AreEqual(result.Count, 10);
                Assert.AreEqual(result[0].id, 989);
            }
            #endregion


            #region (x.3)
            {
                var result = query
                    .IQueryable_Sort(new[] {
                        new SortItem { field = "b1.pid", asc = false },
                        new SortItem { field = "id", asc = true }
                    })
                    .IQueryable_ToPageData<ModelA>(new PageInfo { pageIndex = 1, pageSize = 10 });

                Assert.AreEqual(result.totalCount, 1000);
                Assert.AreEqual(result.rows.Count, 10);
                Assert.AreEqual(result.rows[0].id, 990);
            }
            #endregion

        }
        #endregion



    }
}