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

namespace Lab2s2
{
    public partial class Form1 : Form
    {
        Handler handler = new Handler();
        public Form1()
        {
            InitializeComponent();
            handler.Output(dataGridView1);
        }

        interface SortTrain
        {
            void Sort();
        }

        interface Output
        {
            string Output();
        }

        public class SortByTrain : IComparer
        {
            int IComparer.Compare(object a, object b)
            {
                Ticket a1 = (Ticket)a;
                Ticket b1 = (Ticket)b;
                if (a1.Train > b1.Train) return 1;
                if (a1.Train < b1.Train) return -1;
                return 0;
            }
        }

        public class Ticket : Output
        {

            int number_of_train;
            string destination;
            int number_of_seat;
            int cost;
            public int Train
            {
                get { return number_of_train; }
                set { number_of_train = value; }
            }
            public string Destination
            {
                get { return destination; }
                set { destination = value; }
            }
            public int Seat
            {
                get { return number_of_seat; }
                set { number_of_seat = value; }
            }
            public int Cost
            {
                get { return cost; }
                set { cost = value; }
            }
            public Ticket(int train, string d, int seat, int cost)
            {
                this.number_of_train = train;
                this.destination = d;
                this.number_of_seat = seat;
                this.cost = cost;
            }
            public string Output()
            {
                return number_of_train.ToString() + " - " + destination + " - " + number_of_seat.ToString() + " - " + cost.ToString();
            }
            public string File()
            {
                return number_of_train.ToString() + ", " + destination + ", " + number_of_seat.ToString() + ", " + cost.ToString();
            }
        }

        public class Handler:SortTrain
        {
            ArrayList a;
            public int Count{get{return a.Count;}}
            public Handler() { a = new ArrayList(0); }
            public Handler(int n) { a = new ArrayList(n); }
            public Handler(ArrayList b) { a = b; }
            public void Sort() { a.Sort(new SortByTrain()); }
            public void ShowCost(DataGridView grid, string dest)
            {
                grid.RowCount = 0;
                grid.ColumnCount = 1;
                int j = 0;
                for (int i = 0; i < a.Count; i++)
                {
                    if (((Ticket)a[i]).Destination == dest) grid.RowCount++;
                }
                for (int i = 0; i < a.Count; i++)
                {
                    if (((Ticket)a[i]).Destination == dest) { grid.Rows[j].Cells[0].Value = ((Ticket)a[i]).Output(); j++; }
                }
            }
            public void DeleteTickets(int train)
            {
                for (int i = 0; i < a.Count; i++)
                {
                    if (((Ticket)a[i]).Train == train) { a.RemoveAt(i); i--; }
                }
            }
            public void InsertTicket(Ticket to_insert, int i)
            {
                a.Insert(i, to_insert);
            }
            public void AddTicket(Ticket ticket)
            {
                a.Add(ticket);
            }
            public void Output(DataGridView grid)
            {
                grid.RowCount = a.Count;
                grid.ColumnCount = 1;
                for (int i = 0; i < a.Count; i++)
                {
                    grid.Rows[i].Cells[0].Value = ((Ticket)a[i]).Output();
                }
            }
            public string File(int i) { return ((Ticket)a[i]).File(); }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string[] k = textBox1.Text.Split(new Char[] { ' ', ',', });
            int n = 0;
            for (int i = 0; i < k.Length; i++)
            {
                if (k[i] != "") n++;
            }
            string[] c = new string[n];
            n = 0;
            for (int i = 0; i < k.Length; i++)
            {
                if (k[i] != "")
                {
                    c[n] = k[i];
                    n++;
                }
            }
            handler.AddTicket(new Ticket(Convert.ToInt32(c[0]), c[1], Convert.ToInt32(c[2]), Convert.ToInt32(c[3])));
            handler.Output(dataGridView1);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            handler.DeleteTickets(Convert.ToInt32(textBox2.Text));
            handler.Output(dataGridView1);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            string[] k = textBox1.Text.Split(new Char[] { ' ', ',', });
            int n = 0;
            for (int i = 0; i < k.Length; i++)
            {
                if (k[i] != "") n++;
            }
            string[] c = new string[n];
            n = 0;
            for (int i = 0; i < k.Length; i++)
            {
                if (k[i] != "")
                {
                    c[n] = k[i];
                    n++;
                }
            }
            handler.InsertTicket(new Ticket(Convert.ToInt32(c[0]), c[1], Convert.ToInt32(c[2]), Convert.ToInt32(c[3])), Convert.ToInt32(textBox3.Text) - 1);
            handler.Output(dataGridView1);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            System.IO.StreamWriter writer = new System.IO.StreamWriter(@"d:\\tickets.txt");
            for (int i = 0; i < handler.Count; i++)
            {
                writer.Write(handler.File(i) + "\n");
            }
            writer.Close();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            ArrayList lines = new ArrayList();
            System.IO.StreamReader reader = new System.IO.StreamReader(@"d:\\tickets.txt");
            while (!reader.EndOfStream)
            {
                lines.Add(reader.ReadLine());
            }
            reader.Close();
            ArrayList tickets = new ArrayList();
            for (int j = 0; j < lines.Count; j++)
            {
                string[] k = ((string)lines[j]).Split(new Char[] { ' ', ',', '\n',});
                int n = 0;
                for (int i = 0; i < k.Length; i++)
                {
                    if (k[i] != "") n++;
                }
                string[] c = new string[n];
                n = 0;
                for (int i = 0; i < k.Length; i++)
                {
                    if (k[i] != "")
                    {
                        c[n] = k[i];
                        n++;
                    }
                }
                handler.AddTicket(new Ticket(Convert.ToInt32(c[0]), c[1], Convert.ToInt32(c[2]), Convert.ToInt32(c[3])));
            }
            handler.Output(dataGridView1);
            handler.ShowCost(dataGridView1, @"Харьков");
        }
    }

}