using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Web;
using System.Net;
using System.IO;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace GamerServices {
    public partial class FormChat : Form {
        private bool _CanChat = true;
        public Friend ChattingWith;

        public bool CanChat{
            get {
                return _CanChat;
            }

            set {
                _CanChat = value;
                this.button1.Enabled = _CanChat;
            }
        }

        [DllImport("user32.dll")]
        static extern bool FlashWindow(IntPtr hwnd, bool bInvert);

        public FormMain Main;
        private bool Editing = false;

        
        public FormChat(FormMain main) {
            Main = main;

            InitializeComponent();

            oldtext = textBox1.Text;
        }

        public void UpdateStatus() {
            Game g = null;
            if (this.ChattingWith.GameID != -1) {
                g = this.Main.GetGame(this.ChattingWith.GameID);
            }

            label2.Text = this.ChattingWith.GameID < 1 ? "" : "Is playing: " + g.Name;
        }

        public void AddMessage(string user, string msg) {
            Editing = true;
            textBox1.Text += "\r\n" + String.Format("[{0:HH:mm:ss}] ", DateTime.Now) + user + ": " + msg;
            Editing = false;

            textBox1.SelectionStart = textBox1.Text.Length;
            textBox1.ScrollToCaret();
            textBox1.Refresh();
        }

        public void AddMessage(string msg) {
            Editing = true;
            textBox1.Text += "\r\n" + msg;
            Editing = false;

            textBox1.SelectionStart = textBox1.Text.Length;
            textBox1.ScrollToCaret();
            textBox1.Refresh();
        }

        private string oldtext = "";
        private void textBox1_TextChanged(object sender, EventArgs e) {
            int selstart = textBox1.SelectionStart;
            int sellen = textBox1.SelectionLength;

            if (!Editing) {
                textBox1.Text = oldtext;
                textBox1.Select(selstart, sellen);
                return;
            }

            oldtext = textBox1.Text;

            
            if (!this.ContainsFocus)
                FlashWindow(this.Handle, true);
        }

        public void Flash() {
            if (!this.ContainsFocus)
                FlashWindow(this.Handle, true);
        }


        private void FormChat_Load(object sender, EventArgs e) {
            this.Focus();

            label1.Text = this.ChattingWith.Username;

            label1.Focus();
            
            WebClient wc = new WebClient();
            wc.Proxy = null;
            MemoryStream ms = new MemoryStream(wc.DownloadData("http://" + "www.gravatar.com/avatar/" + ChattingWith.AvatarURL + "?s=64"));
            pictureBox1.Image = Image.FromStream(ms);

            FlashWindow(this.Handle, true);
            

            textBox1.Font = ChattingWith.Main.GetFont("Chat");
            label1.Font = ChattingWith.Main.GetFont("Chat_Header");
            label2.Font = ChattingWith.Main.GetFont("Chat_Sub");

            this.UpdateStatus();
        }

        private void button1_Click(object sender, EventArgs e) {
            if (!button1.Enabled)
                return;

            textBox2.Focus();

            if (!CanChat)
                return;

            if (textBox2.Text.Length == 0)
                return;

            Editing = true;
            textBox1.Text += "\r\n" + String.Format("[{0:HH:mm:ss}] ", DateTime.Now) + Main.Username + ": " + textBox2.Text;
            Main.Networker.Connection.Send(5, textBox2.Text.Length + 9, ChattingWith.UserID, textBox2.Text);
            textBox2.Text = "";
            Editing = false;

            textBox1.SelectionStart = textBox1.Text.Length;
            textBox1.ScrollToCaret();
            textBox1.Refresh();
        }

        private void textBox2_KeyPress(object sender, KeyPressEventArgs e) {
            if (!CanChat)
                return;

            if (e.KeyChar == 13) {
                button1_Click(null, null);
            }
        }

        private void FormChat_FormClosed(object sender, FormClosedEventArgs e) {
            this.ChattingWith.ChatWindow = null;
        }

        private void FormChat_Resize(object sender, EventArgs e) {
            this.panel1.Size = new Size(this.Size.Width - 16, 76);
            this.textBox1.Size = new Size(this.Size.Width - 16, this.Size.Height - 82 - 70);
            this.textBox2.Size = new Size(this.Size.Width - 168, 20);
            this.textBox2.Location = new Point(12, this.Size.Height - 63);
            this.button1.Location = new Point(this.Size.Width - 149, this.Size.Height - 67);
        }

        private void FormChat_MouseClick(object sender, MouseEventArgs e) {
            textBox2.Focus();
        }

        private void panel1_MouseClick(object sender, MouseEventArgs e) {
            textBox2.Focus();
        }

        private void label1_Click(object sender, EventArgs e) {
            textBox2.Focus();
        }

        private void label2_Click(object sender, EventArgs e) {
            textBox2.Focus();
        }

        private void panel1_Click(object sender, EventArgs e) {
            textBox2.Focus();
        }

        public void FocusTextBar() {
            textBox2.Focus();
        }

        private void button2_Click(object sender, EventArgs e) {

        }
    }
}