using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;

namespace MKIms3
{
	/// <summary>
	/// pwd 的摘要說明。
	/// </summary>
	public class pwd : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox txt_old_pwd;
		private System.Windows.Forms.TextBox txt_new_pwd;
		private System.Windows.Forms.TextBox txt_same_pwd;
		private System.Windows.Forms.Button btn_ok;
		private System.Windows.Forms.Button btn_esc;
		private System.Windows.Forms.PictureBox pictureBox1;
		/// <summary>
		/// 必需的設計器變量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public pwd()
		{
			//
			// Windows 窗體設計器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 調用后添加任何構造函數代碼
			//
		}

		/// <summary>
		/// 清理所有正在使用的資源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗體設計器生成的代碼
		/// <summary>
		/// 設計器支持所需的方法 - 不要使用代碼編輯器修改
		/// 此方法的內容。
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(pwd));
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.txt_old_pwd = new System.Windows.Forms.TextBox();
			this.txt_new_pwd = new System.Windows.Forms.TextBox();
			this.txt_same_pwd = new System.Windows.Forms.TextBox();
			this.btn_ok = new System.Windows.Forms.Button();
			this.btn_esc = new System.Windows.Forms.Button();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(144, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(56, 23);
			this.label1.TabIndex = 0;
			this.label1.Text = "舊密碼";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(144, 48);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(56, 23);
			this.label2.TabIndex = 1;
			this.label2.Text = "新密碼";
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(144, 80);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(56, 23);
			this.label3.TabIndex = 2;
			this.label3.Text = "確認密碼";
			this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// txt_old_pwd
			// 
			this.txt_old_pwd.Location = new System.Drawing.Point(208, 16);
			this.txt_old_pwd.Name = "txt_old_pwd";
			this.txt_old_pwd.PasswordChar = '*';
			this.txt_old_pwd.Size = new System.Drawing.Size(112, 21);
			this.txt_old_pwd.TabIndex = 3;
			this.txt_old_pwd.Text = "";
			// 
			// txt_new_pwd
			// 
			this.txt_new_pwd.Location = new System.Drawing.Point(208, 48);
			this.txt_new_pwd.Name = "txt_new_pwd";
			this.txt_new_pwd.PasswordChar = '*';
			this.txt_new_pwd.Size = new System.Drawing.Size(112, 21);
			this.txt_new_pwd.TabIndex = 4;
			this.txt_new_pwd.Text = "";
			// 
			// txt_same_pwd
			// 
			this.txt_same_pwd.Location = new System.Drawing.Point(208, 80);
			this.txt_same_pwd.Name = "txt_same_pwd";
			this.txt_same_pwd.PasswordChar = '*';
			this.txt_same_pwd.Size = new System.Drawing.Size(112, 21);
			this.txt_same_pwd.TabIndex = 5;
			this.txt_same_pwd.Text = "";
			// 
			// btn_ok
			// 
			this.btn_ok.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.btn_ok.Location = new System.Drawing.Point(152, 120);
			this.btn_ok.Name = "btn_ok";
			this.btn_ok.Size = new System.Drawing.Size(56, 24);
			this.btn_ok.TabIndex = 6;
			this.btn_ok.Text = "確認";
			this.btn_ok.Click += new System.EventHandler(this.btn_ok_Click);
			// 
			// btn_esc
			// 
			this.btn_esc.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.btn_esc.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.btn_esc.Location = new System.Drawing.Point(240, 120);
			this.btn_esc.Name = "btn_esc";
			this.btn_esc.Size = new System.Drawing.Size(56, 24);
			this.btn_esc.TabIndex = 7;
			this.btn_esc.Text = "退出";
			// 
			// pictureBox1
			// 
			this.pictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
			this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
			this.pictureBox1.Location = new System.Drawing.Point(8, 8);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(128, 136);
			this.pictureBox1.TabIndex = 8;
			this.pictureBox1.TabStop = false;
			// 
			// pwd
			// 
			this.AcceptButton = this.btn_ok;
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.CancelButton = this.btn_esc;
			this.ClientSize = new System.Drawing.Size(336, 157);
			this.Controls.Add(this.pictureBox1);
			this.Controls.Add(this.btn_esc);
			this.Controls.Add(this.btn_ok);
			this.Controls.Add(this.txt_same_pwd);
			this.Controls.Add(this.txt_new_pwd);
			this.Controls.Add(this.txt_old_pwd);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label2);
			this.Controls.Add(this.label1);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.Name = "pwd";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "用戶密碼修改";
			this.ResumeLayout(false);

		}
		#endregion

		private void btn_ok_Click(object sender, System.EventArgs e)
		{
			string pwd = this.txt_old_pwd.Text.Trim();
			string newpwd = this.txt_new_pwd.Text.Trim();
			string samepwd = this.txt_same_pwd.Text.Trim();
			if(pwd.Length==0 || newpwd.Length == 0 || samepwd.Length == 0)
			{
				MessageBox.Show("所有輸入不能為空，請檢查您的輸入！","錯誤信息",MessageBoxButtons.OK,MessageBoxIcon.Warning);

			}
			else
			{
				if(check_old_pwd(pwd))
				{
					change_pwd(newpwd, samepwd);
				}
			}


		}


		private bool check_old_pwd(string pwd)
		{
			DataBase myDB = new DataBase();
			SqlDataReader myReader = null;
			SqlParameter[] myParamers={new SqlParameter("@u_name",SqlDbType.Char,10)} ;
			myParamers[0].Value = App.u_name;
			myReader = myDB.RunProcedure("up_get_upass",myParamers);
			if(myReader!=null)
			{
				if(myReader.Read())
				{
					if(myReader["u_pass"].ToString().Trim()==pwd)
					{
						myReader.Close();
						//用戶身份合法，可以修改密碼
						return true;
					}
					else
					{
						MessageBox.Show("原始密碼錯誤！","錯誤信息",MessageBoxButtons.OK,MessageBoxIcon.Warning);
						return false;
					}
				}
				else
				{
					MessageBox.Show("當前用戶信息已被刪除，不能更改密碼","錯誤信息",MessageBoxButtons.OK,MessageBoxIcon.Warning);
					return false;
				}
			}
			else
			{
				return false;
			}
		}


		private void change_pwd(string newpwd,string samepwd)
		{
			if(newpwd == samepwd)
			{
				DataBase myDB = new DataBase();
				SqlParameter[] myParamers={new SqlParameter("@u_name",SqlDbType.Char,10),
											  new SqlParameter("@u_pass",SqlDbType.Char,10)
										  } ;
				myParamers[0].Value = App.u_name;
				myParamers[1].Value = newpwd;
				if(myDB.RunProcedure_Nr("up_change_pwd ",myParamers))
				{
					MessageBox.Show("密碼修改成功，請保管好您的密碼！","提示信息",MessageBoxButtons.OK,MessageBoxIcon.Information);
				}
				else
				{
					MessageBox.Show("系統錯誤，密碼修改不成功！","錯誤信息",MessageBoxButtons.OK,MessageBoxIcon.Warning);

				}
			}
			else
			{
				MessageBox.Show("兩次輸入密碼不一致！","錯誤信息",MessageBoxButtons.OK,MessageBoxIcon.Warning);
			}
		}


	}
}