using System;

using System.Collections.Generic;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Xml;

using System.Text.RegularExpressions;

using System.Data;

using System.IO;

using System.Text;



namespace aucn.web.au

{

    public partial class subject : System.Web.UI.Page

    {

        XmlDocument doc;

        protected void Page_Load(object sender, EventArgs e)

        {

            this.Master.Attributes["submenu"] = "Undergrad";



            if (Request.QueryString["d"] != null)

            {

                string id = Request.QueryString["d"].Trim().ToUpper();

                if (Cache["DEPT_" + id] == null)

                {

                    doc = new XmlDocument();





                    doc.Load(Server.MapPath("~/App_Data/subjects.xml"));

                    XmlNamespaceManager xm = new XmlNamespaceManager(doc.NameTable);

                    xm.AddNamespace("ab", "http://tempuri.org/subject.xsd");



                    XmlNode deptNode = doc.DocumentElement.SelectSingleNode("ab:department[@name='" + id + "']", xm);

                    if (deptNode != null)

                    {





                        Department dpt = new Department(

                            id,

                            deptNode.SelectSingleNode("ab:name", xm).InnerText,

                            deptNode.SelectSingleNode("ab:chname", xm).InnerText,

                            deptNode.SelectSingleNode("ab:desc", xm) != null ? deptNode.SelectSingleNode("ab:desc", xm).InnerText : string.Empty,

                            deptNode.SelectSingleNode("ab:career", xm) != null ? deptNode.SelectSingleNode("ab:career", xm).InnerText : string.Empty,

                            deptNode.SelectSingleNode("ab:common", xm) != null ? deptNode.SelectSingleNode("ab:common", xm).InnerText : string.Empty,

                            new List<Major>()

                            );



                        XmlNodeList majorNodes = deptNode.SelectNodes("ab:majors/ab:major", xm);



                        foreach (XmlNode majorNode in majorNodes)

                        {

                            dpt.MajorList.Add(new Major(majorNode.Attributes["name"].Value,

                                majorNode.SelectSingleNode("ab:name", xm) != null ? majorNode.SelectSingleNode("ab:name", xm).InnerText : string.Empty,

                                majorNode.SelectSingleNode("ab:desc", xm) != null ? majorNode.SelectSingleNode("ab:desc", xm).InnerText : string.Empty,

                                majorNode.SelectSingleNode("ab:career", xm) != null ? majorNode.SelectSingleNode("ab:career", xm).InnerText : string.Empty,

                                majorNode.SelectSingleNode("ab:target", xm) != null ? majorNode.SelectSingleNode("ab:target", xm).InnerText : string.Empty,

                                majorNode.SelectSingleNode("ab:subjects", xm) != null ? majorNode.SelectSingleNode("ab:subjects", xm).InnerText : string.Empty,

                                majorNode.Attributes["new"] != null ? Convert.ToBoolean(int.Parse(majorNode.Attributes["new"].Value)) : false

                                ));

                            

                        }



                        Cache["DEPT_" + id] = dpt;





                        //this.BindDeptData(deptName);



                    }

                    else

                    {

                        this.Title = "Error!";

                        return;

                    }

                }



                this.BindDeptData(id);

            }

            else

            {

                this.Title = "Error!";

                return;

            }

        }



        protected void BindDeptData(string deptId)

        {

            Department dept = (Department)Cache["DEPT_" + deptId];

            this.Title = string.Format("{1} {0}", dept.DeptName, dept.DeptChName);

            ltrDeptDesc.Text = dept.Description;



            //string dname = dept.DeptChName.Substring(dept.DeptChName.IndexOf(' ') + 1);



            ltrDeptName.Text = string.Format("{1}<br/>{0}", dept.DeptName, dept.DeptChName);



            if (dept.CommonSubjects != string.Empty)

            {

                string t = Regex.Replace(dept.CommonSubjects, @"\r\n", "</td></tr><tr><td>");

                t = Regex.Replace(t, @"\t{2,}", "</td><td class='last'>");

                t = Regex.Replace(t, "(First|Second|Third|Fourth) (Semester|Year)", "<em>$1 $2</em>");

                t = Regex.Replace(t, "?(?|?|?|?)(??|??)", "<em>?$1$2</em>");

                ltrCommonSubjects.Text = "<table class='subject'>" + t + "</table>";

            }

            else

            {

                pnCommon.Visible = false;

            }



            // get majors

            StringBuilder mhtml = new StringBuilder();

            mhtml.Append("<ul>");

            foreach (Major m in dept.MajorList)

            {

                mhtml.AppendFormat("<li><a href='major.aspx?d={0}&m={1}'>{2}</a> {3}</li>", Request.QueryString["d"], m.MajorName, m.MajorChName, m.IsNew?string.Format("<img src='{0}' />", (String)GetGlobalResourceObject("Resource1", "NewIconPathAbs")):"");

            }

            mhtml.Append("</ul>");



            ltrMajors.Text = mhtml.ToString();

        }

    }

}