using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Net;
using System.Net.Sockets;
using HdSystemLibrary.IO;
using System.Diagnostics;
using Handwriting_program;

namespace MSGer.tk
{
    public partial class ChatPanel : UserControl
    {
        //public static List<ChatForm> ChatWindows = new List<ChatForm>();
        public static List<ChatPanel> ChatWindows = new List<ChatPanel>();
        public List<UserInfo> ChatPartners = new List<UserInfo>();
        private string chatname = "";
        public string ChatName //2014.12.13. - A beszélgetés neve
        {
            get
            {
                return chatname;
            }
            set
            {
                chatname = value;
                this.Text = chatname;
            }
        }
        public ChatPanel()
        {
            InitializeComponent();
            //Amint létrehozom, ez a kód lefut - Nem számit, hogy megjelenik-e

            this.Text = Language.Translate("chat_title", this);
            showicons.Text = Language.Translate("chat_showicons", showicons);
        }

        private void ChatForm_Load(object sender, EventArgs e)
        {
            if (ChatPartners.Count == 0)
                MessageBox.Show(Language.Translate("error") + ": " + Language.Translate("chat_nowindow"));
            /*if (ChatPartners.Count == 1) - A partnerinformációkat bal oldalt jelezze, akárhányan vannak, hogy egységes legyen
            { - Felül a csoportnév látszódjon
                partnerName.Text = ChatPartners[0].Name;
                TextFormat.Parse(partnerName);
                partnerMsg.Text = ChatPartners[0].Message;
                TextFormat.Parse(partnerMsg);
                switch (ChatPartners[0].State)
                {
                    case 0:
                        {
                            statusLabel.Text = Language.Translate("offline");
                            break;
                        }
                    case 1:
                        {
                            statusLabel.Text = Language.Translate("menu_file_status_online");
                            break;
                        }
                    case 2:
                        {
                            statusLabel.Text = Language.Translate("menu_file_status_busy");
                            break;
                        }
                    case 3:
                        {
                            statusLabel.Text = Language.Translate("menu_file_status_away");
                            break;
                        }
                    default:
                        {
                            statusLabel.Text = Language.Translate("networking_alone");
                            break;
                        }
                }
            }*/
            if (ChatName.Length == 0)
            {
                this.Text = "";
                foreach (var item in ChatPartners)
                    this.Text += item.Name + ", ";
                this.Text = this.Text.Remove(this.Text.Length - 2);
                partnerName.Text = this.Text;
                this.Text += " - " + Language.Translate("chat_title");
                Language.ReloadEvent += delegate
                {
                    if (ChatName.Length != 0)
                        return;
                    this.Text = "";
                    foreach (var item in ChatPartners)
                        this.Text += item.Name + ", ";
                    this.Text = this.Text.Remove(this.Text.Length - 2);
                    partnerName.Text = this.Text;
                    this.Text += " - " + Language.Translate("chat_title");
                };
            }
            else
            {
                this.Text = ChatName;
            }
            Parent.Parent.Text = this.Text; //2014.12.22.
            messageTextBox.Select();
        }

        public bool InternalMessageChange = false;
        public int SelectionStart = 0;
        public int SelectionLength = 0;
        public int TextLength = 0;
        private void SendMessage(object sender, KeyEventArgs e)
        {
            //SendMessage
            if (e.KeyCode != Keys.Enter || e.Shift || messageTextBox.Text.Length == 0 || !messageTextBox.Visible) //Visible: 2014.11.07.
                return;
            messageTextBox.ReadOnly = true;
            if (!Networking.SendChatMessage(this, messageTextBox.Text))
                MessageBox.Show(Language.Translate("networking_alone"));
            else //else: 2014.10.31.
                messageTextBox.Text = "";
            //messageTextBox.Focus();
            messageTextBox.Select(); //2014.12.13.
            messageTextBox.ReadOnly = false;
        }

        private void MessageTextChanged(object sender, EventArgs e)
        {
            if (!InternalMessageChange)
            {
                if (messageTextBox.Text == "\n")
                    messageTextBox.Text = "";
#if emoticons
                TextFormat.Parse((ExExRichTextBox)sender);
#endif
            }
        }

        private void OpenLink(object sender, LinkClickedEventArgs e)
        {
            Process.Start(e.LinkText);
        }

        /*private void ChatForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            ChatWindows.Remove(this);
        }*/

        public static ChatPanel GetChatFormByUsers(IEnumerable<UserInfo> users) //2014.08.08. - IEnumerable: 2014.08.16.
        {
            int i;
            for (i = 0; i < ChatWindows.Count; i++)
            {
                if (ChatWindows[i].ChatPartners.HasSameElementsAs(users))
                    break;
            }
            return (i != ChatWindows.Count) ? ChatWindows[i] : null;
        }

        public string TMessage;
        public int SetThreadValues()
        {
            recentMsgTextBox.AppendText(TMessage);
            TextFormat.Parse(recentMsgTextBox);
            TMessage = "";
            recentMsgTextBox.SelectionStart = recentMsgTextBox.TextLength; //2014.04.10.
            recentMsgTextBox.ScrollToCaret(); //2014.04.10.
            return 0;
        }
        public void OpenSendFile(SelectPartnerForm spform)
        {
            //A küldő a szerver - 2014.06.15.
            //Fogadás: //sendfile üzenet
            if (openFileDialog1.ShowDialog() == DialogResult.Cancel)
                return;
            Stream st = new FileStream(openFileDialog1.FileName, FileMode.Open);
            try
            {
                if (new FileInfo(openFileDialog1.FileName).Length > Int64.Parse(Storage.Settings["filelen"]))
                {
                    List<byte> buf = new List<byte>();
                    int b;
                    do
                    {
                        b = st.ReadByte();
                        buf.Add((byte)b);
                    }
                    while (b != -1);
                    st = new MemoryStream(buf.ToArray(), false);
                }
            }
            catch (OutOfMemoryException)
            { //A MemoryStream-et nem hozza létre, ezzel elméletileg memóriát felszabadítva
                st.Seek(0, SeekOrigin.Begin);
            }
            IPHostEntry host;
            IPAddress localIP = IPAddress.Parse("127.0.0.1");
            host = Dns.GetHostEntry(Dns.GetHostName());
            foreach (IPAddress ip in host.AddressList)
            {
                if (ip.AddressFamily == AddressFamily.InterNetwork)
                {
                    localIP = ip;
                    break;
                }
            }
            //string ret = Networking.SendRequest("setip", spform.Partners[0] + 'ͦ' + localIP.ToString() + ":" + Settings.Default.port + ":" + openFileDialog1.FileName, 0, true);
            //var ipAddr = IPAddress.Parse(ret);
            IPAddress ipAddr = null; //Használja fel a partner ismert IP-címét
            Socket sListener;
            SocketPermission permission;
            permission = new SocketPermission(NetworkAccess.Accept, TransportType.Tcp, "", SocketPermission.AllPorts);
            sListener = new Socket(ipAddr.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
            var ipEndPoint = new IPEndPoint(ipAddr, Int32.Parse(Storage.Settings["port"]));
            sListener.Listen(1);
            ST = st; //Átadja az adatfolyamot a nyilvánosabb változónak
            AsyncCallback aCallback = new AsyncCallback(SendFile_AcceptCallback);
            sListener.BeginAccept(aCallback, sListener);
        }
        private Stream ST;
        private void SendFile_AcceptCallback(IAsyncResult ar)
        {
            Socket listener = (Socket)ar.AsyncState;
            Socket handler = listener.EndAccept(ar);
            var ns = new NetworkStream(handler);
            ns.CopyFrom(ST, new CopyFromArguments(new ProgressChange(SendFile_ProgressChange)));
        }

        private void SendFile_ProgressChange(long bytesRead, long totalBytesToRead)
        {
            Console.WriteLine("SendFile: " + bytesRead + " / " + totalBytesToRead);
        }

        public string CurrentMessage = "";
        private void showicons_CheckedChanged(object sender, EventArgs e)
        {
            if (showicons.Checked)
            {
                CurrentMessage = messageTextBox.Text;
                messageTextBox.Enabled = false;
                TextFormat.Parse(messageTextBox);
            }
            else
            {
                messageTextBox.Text = CurrentMessage;
                messageTextBox.Enabled = true;
            }
        }

        public void Close()
        {
            ChatWindows.Remove(this);
            if (Storage.Settings["chatwindow"] == "0" ^ SettingsForm.ApplyingSettings) //Ha az új beállítás szerint(!) külön ablakokban kell megjeleníteni, akkor hajtsa végre
            { //2014.10.31.
                this.Dispose();
                if (ChatIcon != null) //Most már nem feltétlenül változik a beállítás
                    ChatIcon.Dispose();
            }
            /*else
                ((Form)this.Parent).Close();*/
        }

        public void Init()
        { //2014.10.28.
            if (!Storage.LoggedInSettings.ContainsKey("chatwindow")) //2014.12.05.
                Storage.LoggedInSettings.Add("chatwindow", "0"); //2014.12.05.
            if (Storage.Settings["chatwindow"] == "1")
            {
                //ChatForm a ChatPanel-lel
                var cf = new ChatForm();
                cf.Controls.Add(this);
                cf.FormClosing += cf_FormClosing;
                this.Dock = DockStyle.Fill;
                cf.Show();
                //cf.Focus();
                cf.Select(); //2014.12.13.
            }
            else
            {
                Program.MainF.Controls.Add(this);
                Program.MainF.PlaceChatIcon(this);
                this.BringToFront();
                this.Show();
            }
        }

        void cf_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.Close();
        }

        internal static void ReopenChatWindows(bool settingchanged)
        {
            for (int i = 0; i < ChatWindows.Count; i++)
            {
                var tmp = ChatWindows[i].ChatPartners;
                if (settingchanged)
                {
                    if (Storage.Settings["chatwindow"] == "0") //Ha az új beállítás szerint(!) külön ablakokban kell megjeleníteni, akkor hajtsa végre
                        ((Form)ChatWindows[i].Parent.Parent).Close(); //Ezzel meghívja a saját Close()-ját is
                    else
                        ChatWindows[i].Close();
                }
                else
                {
                    if (Storage.Settings["chatwindow"] == "1") //Ha a régi beállítás szerint(!) külön ablakokban kell megjeleníteni, akkor hajtsa végre
                        ((Form)ChatWindows[i].Parent.Parent).Close(); //Ezzel meghívja a saját Close()-ját is
                    else
                        ChatWindows[i].Close();
                }
                var tmp2 = new ChatPanel();
                tmp2.ChatPartners = tmp;
                tmp2.Init();
                ChatWindows.Add(tmp2);
            }
        }

        public new void Show()
        {
            if (Storage.Settings["chatwindow"] == "0")
            {
                foreach (var item in ChatWindows)
                {
                    item.Hide();
                }
                //this.Location = new Point(this.ChatIcon.Location.X + 150, this.ChatIcon.Location.Y);
                //A ChatIcon-hoz a legközelebbi helyre rakja - Vagy fedje be kb. a partnerlistát, úgyis elég nagy
                this.Location = new Point(150, Program.MainF.contactList.Location.Y);
            }
            base.Show();
        }

        public PictureBox ChatIcon { get; set; }

        public Handwriting handw;
        private void button1_Click(object sender, EventArgs e)
        {
            if (messageTextBox.Visible)
            {
                if (handw == null)
                {
                    handw = new Handwriting();
                    handw.Parent = this.splitContainer2.Panel2;
                    handw.Bounds = messageTextBox.Bounds;
                    handw.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
                    handw.sendbtn.Text = Language.Translate("sendbtn_send", handw.sendbtn);
                    handw.sendbtn.Click += Handw_sendbtn_Click;
                }
                else
                    handw.Show();
                messageTextBox.Hide();
            }
            else
            {
                handw.Hide();
                messageTextBox.Show();
            }
        }

        void Handw_sendbtn_Click(object sender, EventArgs e)
        {
            handw.GetBitmap().Save("test.bmp");
        }
    }
}