using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Xml;
using System.Xml.Linq;
using District_3_App.Enitities;
using District_3_App.ProfileSocialNetworkInfoStuff.Entities;
using District_3_App.Repository;

namespace District_3_App.FriendsSettings
{
    /// <summary>
    /// Interaction logic for Friends.xaml
    /// </summary>
    public partial class Friends : UserControl
    {
        // Getting lists
        private static Dictionary<string, UserInfo> GetContacts()
        {
            var contacts = new Dictionary<string, UserInfo>();
            string filePath;

            // Create User objects with usernames and add them to the dictionary
            /*contacts["0752111222"] = new User("@patri.stoica", "0752111222");
            contacts["0743111222"] = new User("@delia.gherasim", "0743111222");*/

            // Load the XML document
            string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
            string relativePath = baseDirectory.Substring(0, baseDirectory.IndexOf("bin\\Debug"));

            string currfilePath = System.IO.Path.Combine(relativePath, "FriendsSettings");
            filePath = System.IO.Path.Combine(currfilePath, "Contacts.xml");
            Console.WriteLine(filePath);
            /*if (!File.Exists(filePath))
            {
                XDocument xDocument1 = new XDocument(new XElement("FancierProfiles"));
                xDocument1.Save(filePath);
            }*/
            // MessageBox.Show("Reading profile info from file: " + filePath);
            XDocument xDocument = XDocument.Load(filePath);

            XElement root = xDocument.Element("contacts");
            if (root != null && root.HasElements)
            {
                foreach (var userElem in root.Elements("contact"))
                {
                    Guid userId;
                    if (!Guid.TryParse((string)userElem.Element("Id"), out userId))
                    {
                        userId = Guid.NewGuid();
                    }
                    UserInfo user = new UserInfo();
                    try
                    {
                        user.Id = userId;
                        user.Username = (string)userElem.Element("username");
                        user.Email = (string)userElem.Element("email");
                        user.PhoneNumber = (string)userElem.Element("phoneNumber");
                        user.Birthday = (DateTime)userElem.Element("birthday");

                        contacts[user.PhoneNumber] = user;
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine($"Error parsing profile: {ex.Message}");
                    }
                }
            }
            return contacts;
        }

        private static Dictionary<string, UserInfo> GetViewers()
        {
            var contacts = new Dictionary<string, UserInfo>();
            string filePath;

            // Create User objects with usernames and add them to the dictionary
            /*contacts["0752111222"] = new User("@patri.stoica", "0752111222");
            contacts["0743111222"] = new User("@delia.gherasim", "0743111222");
            contacts["0755111222"] = new User("@anita.gorog", "0755111222");*/

            // Load the XML document
            string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
            string relativePath = baseDirectory.Substring(0, baseDirectory.IndexOf("bin\\Debug"));

            string currfilePath = System.IO.Path.Combine(relativePath, "FriendsSettings");
            filePath = System.IO.Path.Combine(currfilePath, "Viewers.xml");
            Console.WriteLine(filePath);
            /*if (!File.Exists(filePath))
            {
                XDocument xDocument1 = new XDocument(new XElement("FancierProfiles"));
                xDocument1.Save(filePath);
            }*/
            // MessageBox.Show("Reading profile info from file: " + filePath);
            XDocument xDocument = XDocument.Load(filePath);

            XElement root = xDocument.Element("viewers");
            if (root != null && root.HasElements)
            {
                foreach (var userElem in root.Elements("viewer"))
                {
                    Guid userId;
                    if (!Guid.TryParse((string)userElem.Element("Id"), out userId))
                    {
                        userId = Guid.NewGuid();
                    }
                    UserInfo user = new UserInfo();
                    try
                    {
                        user.Id = userId;
                        user.Username = (string)userElem.Element("username");
                        user.Email = (string)userElem.Element("email");
                        user.PhoneNumber = (string)userElem.Element("phoneNumber");
                        user.Birthday = (DateTime)userElem.Element("birthday");

                        contacts[user.PhoneNumber] = user;
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine($"Error parsing profile: {ex.Message}");
                    }
                }
            }

            return contacts;
        }

        private static Dictionary<string, UserInfo> GetFriends()
        {
            var friends = new Dictionary<string, UserInfo>();
            string filePath;

            // Load the XML document
            string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
            string relativePath = baseDirectory.Substring(0, baseDirectory.IndexOf("bin\\Debug"));

            string currfilePath = System.IO.Path.Combine(relativePath, "FriendsSettings");
            filePath = System.IO.Path.Combine(currfilePath, "Friends.xml");
            Console.WriteLine(filePath);
            /*if (!File.Exists(filePath))
            {
                XDocument xDocument1 = new XDocument(new XElement("FancierProfiles"));
                xDocument1.Save(filePath);
            }*/
            // MessageBox.Show("Reading profile info from file: " + filePath);
            XDocument xDocument = XDocument.Load(filePath);

            XElement root = xDocument.Element("friends");
            if (root != null && root.HasElements)
            {
                foreach (var userElem in root.Elements("friend"))
                {
                    Guid userId;
                    if (!Guid.TryParse((string)userElem.Element("Id"), out userId))
                    {
                        userId = Guid.NewGuid();
                    }
                    UserInfo user = new UserInfo();
                    try
                    {
                        user.Id = userId;
                        user.Username = (string)userElem.Element("username");
                        user.Email = (string)userElem.Element("email");
                        user.PhoneNumber = (string)userElem.Element("phoneNumber");
                        user.Birthday = (DateTime)userElem.Element("birthday");

                        friends[user.PhoneNumber] = user;
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine($"Error parsing profile: {ex.Message}");
                    }
                }
            }

            return friends;
        }

        public void SaveFriendsToXml()
        {
            string filePath;

            // Load the XML document
            string baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
            string relativePath = baseDirectory.Substring(0, baseDirectory.IndexOf("bin\\Debug"));

            string currentFilePath = System.IO.Path.Combine(relativePath, "FriendsSettings");
            filePath = System.IO.Path.Combine(currentFilePath, "Friends.xml");

            try
            {
                XDocument xDocument = new XDocument(new XElement("friends"));

                foreach (var friend in friends.Values)
                {
                    XElement friendElement = new XElement("friend",
                        new XElement("Id", friend.Id),
                        new XElement("username", friend.Username),
                        new XElement("email", friend.Email),
                        new XElement("phoneNumber", friend.PhoneNumber),
                        new XElement("birthday", friend.Birthday));

                    xDocument.Root?.Add(friendElement);
                }

                xDocument.Save(filePath);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Error saving friends to XML: " + ex.Message);
            }
        }

        private Dictionary<string, UserInfo> syncContacts = GetContacts();

        private Dictionary<string, UserInfo> usernames_viewers = GetViewers();

        private Dictionary<string, UserInfo> friends = GetFriends();
        public Friends()
        {
            InitializeComponent();
        }

        private void LoadUsernamesContacts_Click(object sender, RoutedEventArgs e)
        {
            usernamesContactsComboBox.Items.Clear();

            foreach (UserInfo user in syncContacts.Values)
            {
                usernamesContactsComboBox.Items.Add(user.Username);
            }
        }

        private bool AddSyncContact(UserInfo contactToAdd, string key)
        {
            if (friends.ContainsKey(key))
            {
                Console.WriteLine("User already added.");
                return false;
            }
            else
            {
                friends[key] = contactToAdd;

                Console.WriteLine($"User added: {contactToAdd.Username}");
            }
            return true;
        }

        private bool RemoveSyncContact(string key)
        {
            friends.Remove(key);
            return true;
        }

        private void ItemButton_Click(object sender, RoutedEventArgs e)
        {
            Button clickedButton = (Button)sender;
            Grid grid = (Grid)VisualTreeHelper.GetParent(clickedButton);
            TextBlock textBlock = (TextBlock)grid.Children[0];
            string username = textBlock.Text;
            bool added = false;
            foreach (UserInfo user in syncContacts.Values)
            {
                if (user.Username == username)
                {
                    string phoneNumber = user.PhoneNumber;
                    added = AddSyncContact(user, phoneNumber);
                    if (added)
                    {
                        MessageBox.Show($"Username added to friends: {username}");
                    }
                    else
                    {
                        RemoveSyncContact(user.PhoneNumber);
                        MessageBox.Show($"Username removed from friends: {username}");
                    }
                    SaveFriendsToXml();
                }
            }

            StringBuilder stringBuilder = new StringBuilder();
            foreach (UserInfo friend in friends.Values)
            {
                stringBuilder.AppendLine(friend.Username + ',' + friend.PhoneNumber);
            }
            string friendsList = stringBuilder.ToString();
            MessageBox.Show("Friends List:\n\n" + friendsList);
        }
    }
}