using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Students
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {

        }

        private void openFileDialog1_FileOk(object sender, CancelEventArgs e)
        {

        }
    }

    class Group
    {
        class Student : Group
        {
            private string Surname;
            private string Name;
            private string Middlename;
            private int salary;
            private bool sessionclosed = false;
            private int[] Marks;
            private int[] Credits;

            public Student()
            {
                Surname = null;
                Name = null;
                Middlename = null;
                salary = 0;
                sessionclosed = false;
                Marks = null;
                Credits = null;
            }

            public Student(string SN, string N, string MN, int[] marks, int[] credits, int Salary)
            {
                if ((SN != null) && (N != null) && (MN != null))
                {
                    Surname = SN;
                    Name = N;
                    Middlename = MN;
                }
                else
                {
                    Surname = null;
                    Name = null;
                    Middlename = null;
                }
                if (marks.Length != 0)
                {
                    Marks = new int[marks.Length];
                    for (int i = 0; i < marks.Length; i++)
                    {
                        Marks[i] = marks[i];
                    }

                }
                else
                    Marks = null;

                if ((credits.Length > 0) && (credits.Length < 13))
                {
                    Credits = new int[credits.Length];
                    for (int i = 0; i < credits.Length; i++)
                    {
                        Credits[i] = credits[i];
                    }
                }
                else
                    Credits = null;
                if (Salary != 0)
                    salary = Salary;
                else
                    salary = 0;
            }

            public string surname
            {
                get { return Surname; }
                set { Surname = value; }
            }

            public string name
            {
                get { return Name; }
                set { Name = value; }
            }

            public string middlename
            {
                get { return Middlename; }
                set { Middlename = value; }
            }

            public int SALARY
            {
                get { return salary; }
                set { salary = value; }
            }

            public bool Sessionclosed
            {
                get { return sessionclosed; }
                set { sessionclosed = value; }
            }

            public int[] MARKS
            {
                get { return Marks; }
                set { Marks = value; }
            }

            public int[] CREDITS
            {
                get { return Credits; }
                set { Credits = value; }
            }

            public static bool operator ==(Student A, Student B)                   //перегрузка операторов == !=
            {
                string Id1 = A.Surname + ' ' + A.Name + ' ' + A.Middlename;
                string Id2 = B.Surname + ' ' + B.Name + ' ' + B.Middlename;
                if ((Id1 == Id2) && (A.Marks == B.Marks) && (A.Credits == B.Credits) && (A.salary == B.salary))
                    return true;
                else
                    return false;
            }

            public static bool operator !=(Student A, Student B)
            {
                string Id1 = A.Surname + ' ' + A.Name + ' ' + A.Middlename;
                string Id2 = B.Surname + ' ' + B.Name + ' ' + B.Middlename;
                if ((Id1 == Id2) && (A.Marks == B.Marks) && (A.Credits == B.Credits) && (A.salary == B.salary))
                    return false;
                else
                    return true;
            }

            public static bool operator true(Student A)       //перегрузка операторов true false
            {
                bool B = false;
                bool C = false;
                for (int i = 0; i < A.Marks.Length; i++)
                {
                    if ((A.Marks[i] == 4) || (A.Marks[i] == 5))      //добавить про кредитс
                        B = true;
                    else
                        C = true;
                }
                if (B && !C)
                    return true;
                else
                    return false;
            }

            public static bool operator false(Student A)
            {
                bool B = false;
                for (int i = 0; i < A.Marks.Length; i++)
                {
                    if ((A.Marks[i] != 4) || (A.Marks[i] != 5))      //добавить про кредитс
                        B = true;
                }
                if (B)
                    return true;
                else
                    return false;
            }
        }

        private string namegroup;
        private int countStudents;
        private LinkedList<Student> listGroup;
        private int countMarks;
        private int countCredits;
        private string[] NameSubject;
        private string[] NameCredits;
        private int course;

        public Group()
        { namegroup = null; listGroup = null; countStudents = 0; countCredits = 0; countMarks = 0; course = 0;
          NameCredits = null; NameSubject = null;}
        public Group(string NameG, int crs, string[] NameS, string[] NameC)
        {
            if (NameG != null)
                namegroup = NameG;
            else
                namegroup = null;
            if ((crs > 0) && (crs <7))
                course = crs;
            else
                course = 0;
            if (NameS.Length != 0)
            {
                countMarks = NameS.Length;
                for (int i=0; i<NameS.Length;i++)
                    NameSubject[i] = NameS[i];
            }
            else
            {
                countMarks = 0;
                NameSubject = null;
            }
            if (NameC.Length != 0)
            {
                countCredits = NameC.Length;
                for (int i=0; i<NameC.Length;i++)
                    NameCredits[i] = NameC[i];
            }
            else
            {
                countCredits = 0;
                NameCredits = null;
            }

            countStudents = 0;
            listGroup = null;
          }

        public string NameGr
        {
            get { return namegroup;}
            set { namegroup = value;}
        }

        public int countStuds
        {
            get { return countStudents;}
            set { countStudents = value;}
        }
        public int countMrks
        {
            get { return countMarks;}
            set { countMarks = value;}
        }

        public int countCreds
        {
            get { return countCredits;}
            set { countCredits = value;}
        }
        public int Course
        {
            get { return course;}
            set { course = value;}
        }
        public string[] Subs
        {
            get { return NameSubject;}
            set { NameSubject = value;}
        }

        public string[] Creds
        {
            get { return NameCredits;}
            set { NameCredits = value;}
        }
        public LinkedList<Student> List
        {
            get { return listGroup; }
            set { listGroup = value;}
        }
        public Group ReadFromFile(string NameFile)   //считывает файл
        {
            Group G = new Group();
            if (NameFile != null)
            {
                try
                {
                    StreamReader stream = new StreamReader(NameFile);
                    string Str = stream.ReadToEnd();
                    char[] sprt = { '\n', ':' };
                    string[] Mas = Str.Split(sprt);
                    for (int i = 0; i < Mas.Length; i++)
                    {
                        if (Mas[i] == "Group")
                            namegroup = Mas[i + 1];
                        if (Mas[i] == "Course")
                            course = Convert.ToInt32(Mas[i + 1]);

                        if (Mas[i] == "Subjects")
                        {
                            for (int q = i + 1; Mas[i] != "Credits"; q++)
                            {
                                int k = 0;
                                NameSubject[k] = Mas[q];
                                k++;
                            }
                        }
                        if (Mas[i] == "Credits")
                        {
                            for (int f = i + 1; Mas[i] != "Students"; f++)
                            {
                                int m = 0;
                                NameCredits[m] = Mas[f];
                                m++;
                            }
                        }
                        if (Mas[i] == "Students")         //добавление студентов в список
                        {
                            char[] sprt2 = { ' ', '[', ']', '{', '}' };
                            string[] Info;
                            int n = 0; //считает количество студентов
                            for (int j = i + 1; j < Mas.Length; j++)
                            {
                                n++;
                                Info = Mas[j].Split(sprt2);
                                Student S = new Student();

                                listGroup.AddLast(S);
                            }


                            countStudents = n;
                        }
                    }
                }

                catch
                {
                    MessageBox.Show("Неверный формат данных");
                }
            }
            else
                G = null;
            return G;
        }
    }


}