using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

namespace MyObjSerial
{
    [Serializable()]    //Set this attribute to all the classes that you define to be serialized
    public class Employee : ISerializable
    {
        public int EmpId;
        public string EmpName;
        public string EmpFamily;
        public double EmpSalary;

        //Default constructor
        public Employee()
        {
            EmpId = 0;
            EmpName = "";
            EmpFamily = "Jones";
            EmpSalary = 100.00;
        }

        //Deserialization constructor.
        public Employee(SerializationInfo info, StreamingContext ctxt)
        {
            //Get the values from info and assign them to the appropriate properties
            EmpId = (int)info.GetValue("EmployeeId", typeof(int));
            EmpName = (String)info.GetValue("EmployeeName", typeof(string));
            EmpFamily = (String)info.GetValue("EmployeeFamily", typeof(string));
            EmpSalary = (double)info.GetValue("EmployeeSalary", typeof(double));
        }

        //Serialization function.
        public void GetObjectData(SerializationInfo info, StreamingContext ctxt)
        {
            //You can use any custom name for your name-value pair. But make sure you
            // read the values with the same name. For ex:- If you write EmpId as "EmployeeId"
            // then you should read the same with "EmployeeId"
            info.AddValue("EmployeeId", EmpId);
            info.AddValue("EmployeeName", EmpName);
            info.AddValue("EmployeeFamily", EmpFamily);
            info.AddValue("EmployeeSalary", EmpSalary);
        }
    }

    //Main class
    public class ObjSerial
    {
        static void Main(String[] args)
        {





            Employee mp = new Employee();


            StringBuilder sb = new StringBuilder();
            sb.Append("First Line");
            sb.Append("\n");
            sb.Append("Second Line");
            Console.WriteLine(sb.ToString());
            int i = 0;
            for (i = 0; i < 10; i++)
            {
                mp.EmpId = i;
                mp.EmpFamily = "Jones";
                mp.EmpSalary = 10.10;
                if (RandomNumber.rnd.NextDouble() <= 1.0 / 5.0)
                {
                    string RandStr = StringGenerator.RandomString(6);
                    mp.EmpName = RandStr;
                }
                else if (RandomNumber.rnd.NextDouble() <= 2.0 / 5.0)
                {
                    string RandStr = StringGenerator.RandomString(7);
                    mp.EmpName = RandStr;
                }
                else if (RandomNumber.rnd.NextDouble() <= 3.0 / 5.0)
                {
                    string RandStr = StringGenerator.RandomString(8);
                    mp.EmpName = RandStr;
                }
                else if (RandomNumber.rnd.NextDouble() <= 5.0 / 5.0)
                {
                    string RandStr = StringGenerator.RandomString(9);
                    mp.EmpName = RandStr;
                }
                else if (RandomNumber.rnd.NextDouble() <= 5.0 / 5.0)
                {
                    string RandStr = StringGenerator.RandomString(10);
                    mp.EmpName = RandStr;
                }

                Console.ReadLine();










                // Open a file and serialize the object into it in binary format.
                // EmployeeInfo.osl is the file that we are creating.
                // Note:- you can give any extension you want for your file
                // If you use custom extensions, then the user will now
                //   that the file is associated with your program.
                Stream stream = File.Open("EmployeeInfo.txt", FileMode.Append);
                BinaryFormatter bformatter = new BinaryFormatter();

                Console.WriteLine("Writing Employee Information");

                bformatter.Serialize(stream, mp);
                stream.Close();

                //Clear mp for further usage.
                mp = null;


                //Open the file written above and read values from it.
                stream = File.Open("EmployeeInfo.txt", FileMode.Open);

                bformatter = new BinaryFormatter();

                Console.WriteLine("Reading Employee Information");
                mp = (Employee)bformatter.Deserialize(stream);
                stream.Close();
                Console.WriteLine("Employee Id: {0}", mp.EmpId.ToString());
                Console.WriteLine("Employee Name: {0}", mp.EmpName);
                Console.WriteLine("Employee Family: {0}", mp.EmpFamily);
                Console.WriteLine("Employee Salary: {0:C}", mp.EmpSalary);
                Console.ReadLine();

            }

        }



        public class StringGenerator
        {
            static private Random random = new Random();
            static public string RandomString(int size)
            {
                StringBuilder builder = new StringBuilder();
                char ch;
                for (int i = 0; i < size; i++)
                {
                    ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65)));
                    builder.Append(ch);
                }
                return builder.ToString();
            }
        }
        public class RandomNumber
        {
            public static Random rnd = new Random();
            static RandomNumber()
            {
                for (int i = 0; i < 50000; i++)
                {
                    rnd.NextDouble();
                }
            }
        }
    }
}