using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Forms;

namespace Lab2_MTP
{
    public enum Categorie : int
    {
        Prieteni,
        Colegi,
        Rude,
        Diversi,
        None
    };

    public partial class Form1 : Form
    {
        private int counterIndx = 0;
        List<Persoana> personsList = new List<Persoana>();
        List<TextBox> myTexboxes = new List<TextBox>();

        public Form1()
        {
            InitializeComponent();
            InitializeDatas();
        }

        private void ResetData()
        {
            if (myTexboxes.Count == 0)
            {
                myTexboxes.Add(addressTxt);
                myTexboxes.Add(emailTxt);
                myTexboxes.Add(messAccTxt);
                myTexboxes.Add(nameTxt);
                myTexboxes.Add(phone1Txt);
                myTexboxes.Add(phone2Txt);
                myTexboxes.Add(webTxt);
            }
            categoryCmb.SelectedIndex = 0;
            foreach(TextBox t in myTexboxes)
            {
                t.Text = "";
            }
        }

        private void InitializeMainNodes()
        {
            string[] mainNodes = { "Prieteni", "Colegi", "Rude", "Diversi" };
            for (int i = 0; i < mainNodes.Length; i++)
            {
                int nodeIndex = i + 1;
                personsTree.Nodes.Add(mainNodes[i], mainNodes[i], nodeIndex);
            }
        }

        private void InitializeDatas()
        {
            string[] categories = { "Prieteni", "Colegi", "Rude", "Diversi" };
            for (int i = 0; i < categories.Length; i++)
            {
                categoryCmb.Items.Add(categories[i]);
            }
            categoryCmb.SelectedIndex = 0;
            string[] criteries = { "Nume", "Data Nastere", "Telefon", "Adresa","Cont Messenger","Adresa Web","Adresa email" };
            for (int i = 0; i < criteries.Length; i++)
            {
                searchCriteriaCmb.Items.Add(criteries[i]);
            }
            searchCriteriaCmb.SelectedIndex = 0;
            // Add the main nodes
            InitializeMainNodes();
        }

        private Categorie getCategory(int index)
        {
            switch(index)
            {
                case 0:
                    return Categorie.Prieteni;
                case 1:
                    return Categorie.Colegi;
                case 2:
                    return Categorie.Rude;
                case 3:
                    return Categorie.Diversi;
            }
            return Categorie.None;
        }

        private string getCategoryString(Categorie currentCateg)
        {
            return Enum.GetName(typeof(Categorie),currentCateg);
        }

        private void RefreshTree()
        {
            // Clear the tree
            personsTree.Nodes.Clear();
            categoryCmb.SelectedIndex = 0;
            personProperty.SelectedObject = null;

            // Initialize the main nodes
            InitializeMainNodes();

            // Recreate the tree
            foreach (Persoana newPers in personsList)
            {
                string personCategory = getCategoryString(newPers.Category);
                TreeNode currentNode = personsTree.Nodes[personCategory];
                currentNode.Nodes.Add(newPers.Index.ToString(),newPers.Nume);
            }
        }

        private void addPersonBtn_Click(object sender, EventArgs e)
        {
            // Parse data
            if (myTexboxes.Count == 0)
            {
                myTexboxes.Add(addressTxt);
                myTexboxes.Add(emailTxt);
                myTexboxes.Add(messAccTxt);
                myTexboxes.Add(nameTxt);
                myTexboxes.Add(phone1Txt);
                myTexboxes.Add(phone2Txt);
                myTexboxes.Add(webTxt);
            }
            foreach (TextBox txt in myTexboxes)
            {
                if (txt.Text == "")
                {
                    MessageBox.Show("Eroare executata cu success.", "Success", MessageBoxButtons.OK,MessageBoxIcon.Error);
                    return;
                }
            }
            Match isPhoneNumber = Regex.Match(phone1Txt.Text,"[0-9]+");
            if(!isPhoneNumber.Success && phone1Txt.Text.Length < 10)
            {
                MessageBox.Show("Se pare ca nu stii cum se scrie un numar de telefon.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            isPhoneNumber = Regex.Match(phone2Txt.Text, "[0-9]+");
            if (!isPhoneNumber.Success && phone2Txt.Text.Length < 10)
            {
                MessageBox.Show("Se pare ca nu stii cum se scrie un numar de telefon.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if(FindPerson(nameTxt.Text) != null)
            {
                MessageBox.Show("Persoana cu acel nume exista deja in lista.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Error);
                ResetData();
                return;
            }
            // Clear textboxes
            Persoana pers = new Persoana(counterIndx++, nameTxt.Text, birthDateTime.Value, phone1Txt.Text, phone2Txt.Text, addressTxt.Text,
                            getCategory(categoryCmb.SelectedIndex), messAccTxt.Text, webTxt.Text, emailTxt.Text);
            ResetData();
            personsList.Add(pers);
            RefreshTree();
        }

        private Persoana FindPerson(string personName)
        {
            foreach(Persoana pers in personsList)
            {
                if (pers.Nume == personName)
                    return pers;
            }
            return null;
        }

        private Persoana FindAfterCriteria(string criteriaName,string keyword)
        {
            foreach (Persoana pers in personsList)
            {
                switch (criteriaName)
                {
                    case "Nume":
                        if (pers.Nume == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Data Nastere":
                        if (pers.DateNastere == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Telefon":
                        if (pers.Telefon1 == keyword || pers.Telefon2 == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Adresa":
                        if (pers.Adresa == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Cont Messenger":
                        if (pers.ContMessenger == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Adresa Web":
                        if (pers.AdresaWeb == keyword)
                        {
                            return pers;
                        }
                        break;
                    case "Adresa email":
                        if (pers.Email == keyword)
                        {
                            return pers;
                        }
                        break;
                    default:
                        return null;
                }
            }
            return null;
        }

        private void SearchBtn_Click(object sender, EventArgs e)
        {
            Persoana per = FindAfterCriteria(searchCriteriaCmb.Text,searchNameTxt.Text);
            personProperty.SelectedObject = null;
            if (per != null)
            {
                personProperty.SelectedObject = per;
            }
            else
            {
                MessageBox.Show("Se pare ca persoana "+searchNameTxt.Text+" nu exista , too bad.", "Success", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            searchNameTxt.Text = "";
        }

        private void DeleteBtn_Click(object sender, EventArgs e)
        {
            string selectedPerson = personsTree.SelectedNode.Text;
            personProperty.SelectedObject = null;
            foreach(Persoana p in personsList)
            {
                if(p.Nume == selectedPerson)
                {
                    personsList.Remove(p);
                    break;
                }
            }
            RefreshTree();
        }

        private void SaveToFileBtn_Click(object sender, EventArgs e)
        {
            string dir = Application.StartupPath;
            StreamWriter sw = new StreamWriter(dir + "\\persoane.txt", false);
            sw.WriteLine("-----------------------------------------------");
            foreach (Persoana p in personsList)
            {
                sw.WriteLine("Nume: "+p.Nume);
                sw.WriteLine("Data nasterii: " + p.DateNastere);
                sw.WriteLine("Telefon 1: " + p.Telefon1);
                sw.WriteLine("Telefon 2: " + p.Telefon2);
                sw.WriteLine("Adresa: " + p.Adresa);
                sw.WriteLine("Category: " + getCategoryString(p.Category));
                sw.WriteLine("Cont messenger: " + p.ContMessenger);
                sw.WriteLine("Adresa web: " + p.AdresaWeb);
                sw.WriteLine("Email: " + p.Email);
                sw.WriteLine("-----------------------------------------------");
            }
            sw.Close();
            System.Diagnostics.Process.Start("notepad.exe", dir + "\\persoane.txt");
        }

        private void personsTree_AfterSelect(object sender, TreeViewEventArgs e)
        {
            Persoana pers;
            int indx;
            personProperty.SelectedObject = null;
            if(int.TryParse(e.Node.Name,out indx))
            {
                pers = GetByIndex(indx);
                if(pers != null)
                {
                    personProperty.SelectedObject = pers;
                }
            }
        }

        private Persoana GetByIndex(int indx)
        {
            foreach(Persoana p in personsList)
            {
                if(p.Index == indx)
                {
                    return p;
                }
            }
            return null;
        }
    }
}