using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Xml.Serialization;

using SMS;

namespace EncrySMS
{
    public struct SettingData
    {
        const string SETTING_FILE_NAME = "EncryptSMSetting";
        public bool AutoClose;

        public static bool IsSetted()
        {
            return File.Exists(SETTING_FILE_NAME);
        }
        public bool Save()
        {
            try
            {
                Stream stream = new FileStream(SETTING_FILE_NAME, FileMode.Create, FileAccess.Write, FileShare.None);
                XmlSerializer sr = new XmlSerializer(typeof(SettingData));
                sr.Serialize(stream, this);
                stream.Close();
                return true;
            }
            catch
            {
                SMSInputForm.NoticeMessage("保存配置信息失敗");
                return false;
            }
        }
        public bool Load()
        {
            if (!IsSetted())
            {
                AutoClose = true;
                return false;
            }
            try
            {
                Stream stream = new FileStream(SETTING_FILE_NAME, FileMode.Open, FileAccess.Read, FileShare.Read);
                XmlSerializer sr = new XmlSerializer(typeof(SettingData));
                this = (SettingData)sr.Deserialize(stream);
                stream.Close();
                    return true;
            }
            catch
            {
                return false;
            }
        }

    };
    public partial class SMSInputForm : Form
    {
        private SMSSender smsSender = new SMSSender();
        SettingData setting;
        public SMSInputForm()
        {
            InitializeComponent();
            setting = new SettingData();
            setting.Load();

//            lblLength.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(149)))), ((int)(((byte)(213)))), ((int)(((byte)(254)))));
//            context.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(149)))), ((int)(((byte)(213)))), ((int)(((byte)(254)))));
//            lblMobile.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(149)))), ((int)(((byte)(213)))), ((int)(((byte)(254))))); 
            //edtMobile
        }
        private void edtContent_TextChanged(object sender, EventArgs e)
        {
            lblLength.Text = edtContent.Text.Length.ToString() ;
        }



        private void SMSInputForm_Closing(object sender, CancelEventArgs e)
        {
           // setting.Save();
            Cursor.Current = Cursors.WaitCursor;
        }

        private void SMSInputForm_Load(object sender, EventArgs e)
        {
          
            Cursor.Current = Cursors.Default;
        }


        private void copy_Click(object sender, EventArgs e)
        {
            if (edtContent.Text != null && edtContent.Text.Trim().Length != 0)
                Clipboard.SetDataObject(edtContent.Text);
        }

        private void paste_Click(object sender, EventArgs e)
        {
            //取剪貼板對象
            IDataObject iData = Clipboard.GetDataObject();
            //判斷是否是Text
            if(iData.GetDataPresent(DataFormats.Text)) 
            {
                 //取數據
                 edtContent.Text = (String)iData.GetData(DataFormats.Text); 
             }
        }
        private bool Validate()
        {
            if (edtMobile.Text.Trim()=="")
            {
                NoticeMessage("手機號碼不能為空");
                edtMobile.Focus();
                return false;
            }
            if (edtContent.Text.Trim()=="")
            {
                NoticeMessage("短信內容不能為空");
                edtContent.Focus();
                return false;

            }
            return true;

        }

        private void btnGeneral_Click(object sender, EventArgs e)
        {
            if (!Validate())
                return;
            //textBox2.Text = DecryptText(textBox1.Text);
            //return;
            if (!smsSender.OpenDevice())
            {
                ErrorMessage("打開短信發送設備失敗，終止短信群發。");
                return;
            }
            Cursor.Current = Cursors.WaitCursor;
            if (smsSender.SendMessage(edtMobile.Text, Encoding.Unicode.GetBytes(edtContent.Text)))
                NoticeMessage("發送成功！");
            else
                ErrorMessage("發送失敗！");

            smsSender.CloseDevice();
            Cursor.Current = Cursors.Default;

        }

        public static void ErrorMessage(String msg)
        {
            MessageBox.Show(msg, "錯誤", MessageBoxButtons.OK, MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
        }
        public static void NoticeMessage(String msg)
        {
            MessageBox.Show(msg, "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
        }
        private void edtMobile_KeyPress(object sender, KeyPressEventArgs e)
        {
            if ((e.KeyChar >= '0' && e.KeyChar <= '9') || e.KeyChar == (char)Keys.Back || e.KeyChar == '+')
                return;
            e.Handled = true;

        }

        private void btnEncrypt_Click(object sender, EventArgs e)
        {
            if (!Validate())
                return;
            if (edtContent.Text.Length>66)
            {
                NoticeMessage("加密發送允許最大發送長度為66。");
                edtContent.Focus();
                return;
            }

            //textBox1.Text = EncryptToText(Encrypt(edtContent.Text));
            //return;
            if (!smsSender.OpenDevice())
            {
                ErrorMessage("打開短信發送設備失敗，終止短信群發。");
                return;
            }
            Cursor.Current = Cursors.WaitCursor;
            if(smsSender.SendMessage(edtMobile.Text, Encrypt(edtContent.Text)))
                 NoticeMessage("發送成功！");
            else
                ErrorMessage("發送失敗！");
           smsSender.CloseDevice();
            Cursor.Current = Cursors.Default;
        }
        private byte[] Encrypt(string content)
        {
            char[] tmp = content.ToCharArray();
            byte[] encryptedbyte=new byte[2];
            byte[] encrypedchars = new byte[tmp.Length*2+8];
            for (int i = 0; i < tmp.Length; i++)
            {
                byte[] charbyte = BitConverter.GetBytes(tmp[i]);
                if (charbyte[1] == 0)
                {
                    encryptedbyte[1] = 0;
                    if (charbyte[0] >= 0x20 && charbyte[0] <= 0x7e)//visible char
                    {
                        encryptedbyte[0] = (byte)(charbyte[0] + (byte)0x5);
                        if (encryptedbyte[0] > 0x7e)
                            encryptedbyte[0] = (byte)(encryptedbyte[0] + (byte)(0xff - 0x7e + 0x20));
                    }
                    else
                        encryptedbyte[0] = charbyte[0];

                }
                else
                {
                        encryptedbyte[0] = (byte)((charbyte[0])+0x7);
                        encryptedbyte[1] = (byte)((charbyte[1]) + 0x7);

                }
                //encrypedchars[i] = BitConverter.ToChar(encryptedbyte, 0);
                encrypedchars[i * 2+8] = encryptedbyte[0];
                encrypedchars[i * 2+8+1] = encryptedbyte[1];

            }
            if (encrypedchars[9]==0)
                Buffer.BlockCopy( Encoding.Unicode.GetBytes("zzzz"),0,encrypedchars,0,8);
            else
            {
                Buffer.BlockCopy(Encoding.Unicode.GetBytes("