using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xunit;

using RedisStudyModel;

using StackExchange;
using StackExchange.Redis;

using RedisStuy;

namespace RedisStudyTest
{
    public class RedisHashStudyTest : IDisposable
    {
        private IDatabase redisDatabase = null;
        private RedisHashStudy hashStudy = null;
        private List<Student> students;
        private Student student = null;
        private string preHashKey = "RedisStudy:Student:";

        /// <summary>
        /// 构造
        /// </summary>
        public RedisHashStudyTest()
        {
            redisDatabase = RedisHelper.GetRedisDatabase();
            hashStudy = new RedisHashStudy();
            students = new List<Student>()
            {
                new Student()
                {
                    Id = 1001,
                    Name = "王高峰",
                    Age = 11
                },
                new Student()
                {
                    Id = 1002,
                    Name = "王高峰2",
                    Age = 22
                },
                new Student()
                {
                    Id = 1003,
                    Name = "王高峰3",
                    Age = 33
                },
                new Student()
                {
                    Id = 1004,
                    Name = "王高峰4",
                    Age = 44
                },
                new Student()
                {
                    Id = 1005,
                    Name = "王高峰5",
                    Age = 55
                },
            };

            //hashStudy.AddStudents(students);
        }

        [Fact]
        public void AddStudentTest()
        {
            student = new Student()
            {
                Id = 1,
                Name = "王高峰",
                Age = 2 * 9
            };
            string redisKey = preHashKey + student.Id;

            //参数异常
            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(string.Empty, null));
            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet("", null));
            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(preHashKey + "-1", null));
            Assert.Throws<ArgumentNullException>(() => hashStudy.HashSet(preHashKey + "-1", new HashEntry[] { }));

            
            var studentEntries = new HashEntry[] 
            {
                new HashEntry("Id",1),
                new HashEntry("Name",student.Name),
                new HashEntry("Age",student.Age),
            };

            //插入Sudent
            var addHash = hashStudy.HashSet(redisKey, studentEntries, CommandFlags.None);
            //设置过期
            redisDatabase.KeyExpire(redisKey, TimeSpan.FromSeconds(5));
            Assert.True(addHash);

            //更新(插入)一项

            var addOrUpdateOne = hashStudy.HashSet(redisKey, "Id",student.Id+1);
            Assert.True(addOrUpdateOne);

            addOrUpdateOne = hashStudy.HashSet(redisKey, "Name", student.Name + 1);
            Assert.True(addOrUpdateOne);

            addOrUpdateOne = hashStudy.HashSet(redisKey, "Age", student.Age + 1);
            Assert.True(addOrUpdateOne);
        }

        [Theory]
        [InlineData(-1)]
        [InlineData(-2)]
        [InlineData(-3)]
        public void DelStudentTest(int studentId)
        {
            //Assert.False(hashStudy.DelStudentById(studentId));
        }

        [Theory]
        [InlineData(-100)]
        public void DelStudentTest2(int studentId)
        {
            //Assert.False(hashStudy.DelStudentById(studentId));
        }

        [Fact]
        public void QueryOneStudentTest()
        {
            //hashStudy.AddStudent(this.student);

            //var queryStudent = hashStudy.QueryOneStudent(this.student.Id);

            //Assert.NotNull(queryStudent);
            //Assert.True(this.student.Id==queryStudent.Id);
            //Assert.True(this.student.Name == queryStudent.Name);
            //Assert.True(this.student.Age == queryStudent.Age);
        }

        [Fact]
        public void ExistStudentTest()
        {
            //Assert.True(hashStudy.ExistStudent(students[0].Id));
            //Assert.True(hashStudy.ExistStudent(students[1].Id));
            //Assert.True(hashStudy.ExistStudent(students[2].Id));
            //Assert.True(hashStudy.ExistStudent(students[3].Id));
            //Assert.True(hashStudy.ExistStudent(students[4].Id));

            //Assert.False(hashStudy.ExistStudent(-1000));
            //Assert.False(hashStudy.ExistStudent(-2000));
        }

        /// <summary>
        /// 查询所有学生
        /// </summary>
        [Fact]
        public void QueryAllStudent()
        {
            //List<Student> students = hashStudy.QueryAllStudents();

            //Assert.NotNull(students);
            //Assert.Equal(students.Count(), students.Count);
        }

        /// <summary>
        /// 清理
        /// </summary>
        public void Dispose()
        {
            if (student != null)
            {
                redisDatabase.KeyDelete(preHashKey + student.Id);
            }
            //hashStudy.DelStudentById(student.Id);
            //foreach (var temp in students)
            //{
            //    hashStudy.DelStudentById(temp.Id);
            //}
        }

        #region  辅助方法
        public HashEntry[] StudentsToHashEntrys(Student student)
        {
            if (student == null)
            {
                return null;
            }

            var entrys = new List<HashEntry>()
            {
                new HashEntry("Id",student.Id),
                new HashEntry("Name",student.Name),
                new HashEntry("Age",student.Age),
            };
            return entrys.ToArray();
        }
        #endregion
    }
}