using System;
using System.Web.UI;
using System.Data;
using System.Drawing;
using System.Security.Principal;

namespace CH78
{
    public partial class Display : Page
    {
        protected string pageType;
        protected void Page_Load(object sender, EventArgs e)
        {
            string studentID = "";
            string gender;

            if (!IsPostBack)
            {
                pageType = Request.QueryString["type"].Trim().ToUpper();
                
                // retrieve the querystring
                if (String.IsNullOrEmpty(Request.QueryString["ID"]))
                {
                    // not the right entry point
                    Response.Redirect("Home.aspx");
                }

                else if (Request.QueryString["ID"].Trim().ToUpper() == "NEW")
                {
                   BindDDL();
                }

                else if (Request.QueryString["type"].Trim().ToUpper() == "VIEW") // display
                {
                    GetStudent(Request.QueryString["ID"].Trim(), Request.QueryString["type"].Trim().ToUpper());
                }

                else if (Request.QueryString["type"].Trim().ToUpper() == "EDIT") // edit
                {
                    GetStudent(Request.QueryString["ID"].Trim(), Request.QueryString["type"].Trim().ToUpper());
                }

                else // anything else
                {
                    Response.Redirect("Home.aspx");
                }
            }
        }

        public void GetStudent(string studentid, string type)
        {
            // the right record

            DataSet ds = new DataSet();
            string gender;
            ds = StudentDataTier.SearchStudents("","",studentid);
            if (ds.Tables[0].Rows.Count > 0)
            {
                txtStuID.Text = ds.Tables[0].Rows[0]["student_id"].ToString();
                txtFNAME.Text = ds.Tables[0].Rows[0]["fname"].ToString();
                txtLNAME.Text = ds.Tables[0].Rows[0]["lname"].ToString();
                txtMidInit.Text = ds.Tables[0].Rows[0]["midinit"].ToString();
                txtDOB.Text = ds.Tables[0].Rows[0]["DOB"].ToString();
                txtActBal.Text = ds.Tables[0].Rows[0]["ACCT_BAL"].ToString();
                txtMajor.Text = ds.Tables[0].Rows[0]["MAJOR"].ToString();
                txtCellPhone.Text = ds.Tables[0].Rows[0]["CELL_PHONE"].ToString();
                txtAdr1.Text = ds.Tables[0].Rows[0]["ADDRESS_ONE"].ToString();
                txtCity.Text = ds.Tables[0].Rows[0]["CITY"].ToString();
                txtZip.Text = ds.Tables[0].Rows[0]["ZIP"].ToString();
                txtCreds.Text = ds.Tables[0].Rows[0]["TOTALCREDITS"].ToString();
                // TODO complete other fields

                gender = ds.Tables[0].Rows[0]["GENDER"].ToString().Trim();
                // if (gender.ToUpper() == "F")
                // {
                //     txtGender.SelectedItem.Text = "FEMALE";
                // }
                // else
                // {
                //     txtGender.SelectedItem.Text = "MALE";
                // }

                txtGender.Enabled = false;
                //mysalary = Decimal.Parse(ds.Tables[0].Rows[0]["salary"])
                //txtSalary.Text = mysalary.ToString("C")
                //txtSalary.Enabled = False

                BindDDL();

                // txtState.SelectedValue = ds.Tables[0].Rows[0]["state"].ToString();
                if (type.ToUpper() == "VIEW")
                {
                    txtStuID.Enabled = false;
                    txtFNAME.Enabled = false;
                    txtLNAME.Enabled = false;
                    btnGoStu.Visible = false;
                    btnCancelStu.Visible = false;
                }
                else if (type.ToUpper() == "EDIT")
                {
                    txtGender.Enabled = true;
                    txtStuID.Enabled = false;
                    btnGoStu.Visible = true;
                    btnCancelStu.Visible = true;
                    btnGoStu.Text = "UPDATE";
                    btnCancelStu.Text = "REFRESH";
                    btnGoStu.ForeColor = Color.Red;
                    btnCancelStu.ForeColor = Color.Blue;
                }
                else if (type.ToUpper() == "NEW")
                {
                    txtGender.Enabled = true;
                    txtStuID.Enabled = false;
                    btnGoStu.Visible = true;
                    btnCancelStu.Visible = true;
                    btnGoStu.Text = "UPDATE";
                    btnCancelStu.Text = "REFRESH";
                    btnGoStu.ForeColor = Color.Red;
                    btnCancelStu.ForeColor = Color.Blue;
                }
            }
        }

        protected void BindDDL()
        {
            txtState.DataSource = StudentDataTier.GetStates();
            txtState.DataTextField = "Name";
            txtState.DataValueField = "StateID";
            txtState.SelectedValue = "1";
            txtState.DataBind();

            txtGender.DataSource = StudentDataTier.GetGenders();
            txtGender.DataTextField = "CommonName";
            txtGender.DataValueField = "Gender_ID";
            txtGender.SelectedValue = "0";
            txtGender.DataBind();
        }
        
        protected void btnCancelStu_OnClick(object sender, EventArgs e)
        {
            
        }

        protected void btnGoStu_OnClick(object sender, EventArgs e)
        {
            
            if (Request.QueryString["type"].Trim().ToUpper() == "VIEW")
            {
            }
            else if (Request.QueryString["type"].Trim().ToUpper() == "EDIT")
            {            StudentDataTier.UpdateStudents(0, 
                txtStuID.Text, 
                txtFNAME.Text, 
                txtLNAME.Text,
                txtMidInit.Text,
                DateTime.Parse(txtDOB.Text), 
                txtGender.Text,
                decimal.Parse(txtActBal.Text),
                txtMajor.Text, txtCellPhone.Text,
                txtAdr1.Text, 
                txtCity.Text, 
                txtState.ToString(),
                txtZip.Text, 
                decimal.Parse(txtCreds.Text));
            }
            else if (Request.QueryString["type"].Trim().ToUpper() == "NEW")
            {            StudentDataTier.UpdateStudents(1, 
                txtStuID.Text, 
                txtFNAME.Text, 
                txtLNAME.Text,
                txtMidInit.Text,
                DateTime.Parse(txtDOB.Text), 
                txtGender.Text.ToString(),
                decimal.Parse(txtActBal.Text),
                txtMajor.Text, txtCellPhone.Text,
                txtAdr1.Text, 
                txtCity.Text, 
                txtState.Text.ToString(),
                txtZip.Text, 
                decimal.Parse(txtCreds.Text));
            }
            

            
        }
        
    }
}