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

namespace Assignment
{
    public partial class Form1 : Form
    {
        AVLTree<Company> avltree = new AVLTree<Company>();

        LinkedList<Company> allCompaniesList = new LinkedList<Company>();
        LinkedList<String> sa = new LinkedList<String>();

        public Form1()
        {
            InitializeComponent();
            const int MAX_LINES_FILE = 50000;

            /*partnersTextBox.AutoCompleteSource = AutoCompleteSource.CustomSource;
            partnersTextBox.AutoCompleteMode = AutoCompleteMode.Append; // or whatever you need
            this.partnersTextBox.AutoCompleteCustomSource = collection;
            */

            string[] headers = new string[6]; //column headers





            {

                string[] AllLines = new string[MAX_LINES_FILE];

                //set a string variable with the location of the data file. Use ReadAllLines to read the data
                string path = @"C:\Users\farid\downloads\companies.csv";
                AllLines = File.ReadAllLines(path);

                foreach (var lineItem in AllLines.Where(l => !string.IsNullOrEmpty(l)).Select((v, i) => new { value = v, index = i }))
                {
                    if (lineItem.value.StartsWith("Company")) //found first line - headers
                    {
                        headers = lineItem.value.Split(',');
                    }
                    else
                    {
                        //split data using commas
                        string[] columns = lineItem.value.Split(',');
                        //Console.Write(columns[0] + ","); //first string in line;
                        //Console.Write(columns[1] + ","); //second string in line;
                        //add similar instructions to read the other strings

                        // read the full set of buyers
                        string[] buyers = columns[5].Split(new string[] { ",", "[", "]" }, StringSplitOptions.RemoveEmptyEntries)
                            .Where(s => !string.IsNullOrEmpty(s))
                            .ToArray();

                        LinkedList<string> ss = new LinkedList<string>(buyers);

                        Company company = new Company(
                                columns[0],
                                Int32.Parse(columns[1]),
                                Int32.Parse(columns[2]),
                                Int32.Parse(columns[3]),
                                Int32.Parse(columns[4]),
                                ss
                                );

                        insertCompany(company);
                    }
                }


                SyncListBox();
            }





        }

        void SyncListBox()
        {

            companyDataListBox.Items.Clear();
            avltree.GetAllNodesInOrder(ref allCompaniesList);

            foreach (var company in allCompaniesList.Where(c => c != null))
            {
                companyDataListBox.Items.Add(company.ToString());
            }

            heightLabelValue.Text = avltree.Height().ToString();
            numberOfCompaniesLabelValue.Text = avltree.Count().ToString();

        }


        void insertCompany(Company company)
        {
            avltree.InsertItem(company);
            SyncListBox();
        }

        void removeRecords(Company company)
        {
            avltree.RemoveItem(company);
            SyncListBox();
        }


        private void removeButton_Click(object sender, EventArgs e)
        {
            companyNameTextBox.Text = String.Empty;
            netIncomeTextBox.Text = String.Empty;
            operatingIncomeTextBox.Text = String.Empty;
            totalAssetsTextBox.Text = String.Empty;
            numberOfEmployeesTextBox.Text = String.Empty;
            partnersListbox.Items.Clear();
            if (companyDataListBox.SelectedIndex != -1)
            {
                int i = companyDataListBox.SelectedIndex;
                string companyString = companyDataListBox.Items[i].ToString();
                Company selectedCompany = Company.fromString(companyString);
                Console.WriteLine($"deleting this company:{selectedCompany.ToString()}");
                removeRecords(selectedCompany);
            }
        }

        private void insertButton_Click(object sender, EventArgs e)
        {


            //to do find a way to do the buyers insert
            if (companyNameTextBox.Text != "" && netIncomeTextBox.Text != "" && operatingIncomeTextBox.Text != "" && totalAssetsTextBox.Text != "" && numberOfEmployeesTextBox.Text != "")
            {
                Company insertedCompany = new Company(
                                    companyNameTextBox.Text,
                                    Int32.Parse(netIncomeTextBox.Text),
                                    Int32.Parse(operatingIncomeTextBox.Text),
                                    Int32.Parse(totalAssetsTextBox.Text),
                                    Int32.Parse(numberOfEmployeesTextBox.Text),
                                    sa
                                    );

                insertCompany(insertedCompany);
            }
        }

        private void companyDataListBox_MouseClick(object sender, MouseEventArgs e)
        {
            sa.Clear();
            partnersListbox.Items.Clear();


            int index = companyDataListBox.IndexFromPoint(e.Location);
            string companyString = companyDataListBox.Items[index].ToString();
            Company selectedCompany = Company.fromString(companyString);
            Console.WriteLine($"avl contains it: {avltree.Contains(selectedCompany)}");


            companyNameTextBox.Text = selectedCompany.Name;
            netIncomeTextBox.Text = selectedCompany.NetIncome.ToString();
            operatingIncomeTextBox.Text = selectedCompany.OperatingIncome.ToString();
            totalAssetsTextBox.Text = selectedCompany.TotalIncome.ToString();
            numberOfEmployeesTextBox.Text = selectedCompany.NoOfEmployees.ToString();

            foreach (string buyer in selectedCompany.Buyers.Where(s => !string.IsNullOrEmpty(s)))
            {
                sa.AddLast(buyer);
                partnersListbox.Items.Add(buyer);
            }

            Console.WriteLine("sa ************ after" + String.Join(";", sa.Where(s => !string.IsNullOrEmpty(s))));

        }



        private void updateButton_Click(object sender, EventArgs e)
        {

            //to do find a way to do the buyers insert


            Console.WriteLine(companyDataListBox.SelectedIndex);

            if (companyDataListBox.SelectedIndex != -1)
            {

                Console.WriteLine("sa ************after" + String.Join(";", sa.Where(s => !string.IsNullOrEmpty(s))));
                int index = companyDataListBox.SelectedIndex;

                string companyString = companyDataListBox.Items[index].ToString();
                Console.WriteLine(companyString);
                Company oldCompanyValue = Company.fromString(companyString);
                Console.WriteLine("NAME IS THIS: "+oldCompanyValue.Name);



                Company newCompanyvalue = new Company(
                                companyNameTextBox.Text,
                                Int32.Parse(netIncomeTextBox.Text),
                                Int32.Parse(operatingIncomeTextBox.Text),
                                Int32.Parse(totalAssetsTextBox.Text),
                                Int32.Parse(numberOfEmployeesTextBox.Text),
                                sa
                                );


                if (avltree.Contains(newCompanyvalue))
                {

                    avltree.RemoveItem(oldCompanyValue);
                    avltree.InsertItem(newCompanyvalue);


                    SyncListBox();

                    Console.WriteLine("sa ************after" + String.Join(";", sa.Where(s => !string.IsNullOrEmpty(s))));


                }


            }

            companyNameTextBox.Text = String.Empty;
            netIncomeTextBox.Text = String.Empty;
            operatingIncomeTextBox.Text = String.Empty;
            totalAssetsTextBox.Text = String.Empty;
            numberOfEmployeesTextBox.Text = String.Empty;
            partnersListbox.Items.Clear();


        }

        private void buttonHome_Click(object sender, EventArgs e)
        {
            SyncListBox();
        }

        private void searchTextBox_TextChanged(object sender, EventArgs e)
        {

            companyDataListBox.Items.Clear();


            Company searchedCompany = new Company(searchTextBox.Text);

            LinkedList<Company> allMatchedCompanies = avltree.Matches(searchedCompany);

            if (!string.IsNullOrEmpty(searchTextBox.Text))
            {
                foreach (var company in allMatchedCompanies)
                {
                    companyDataListBox.Items.Add(company.ToString());
                }
            }

            else
            {
                SyncListBox();
            }


        }

        private void partnersTextBox_TextChanged(object sender, EventArgs e)
        {



            /*private void companyDataListBox_SelectedValueChanged(object sender, EventArgs e)
            {
                //int index = this.listBox1.IndexFromPoint(e.Location);

            }*/
        }

        private void insertPartnerButton_Click(object sender, EventArgs e)
        {
            sa.AddLast(partnersTextBox.Text);
            partnersListbox.Items.Add(partnersTextBox.Text);
            Console.WriteLine(String.Join(";", sa.Where(s => !string.IsNullOrEmpty(s))));
        }
    }
}