using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Telerik.Web.UI;

namespace VRS.Management.VSAT
{
    public partial class ExamTheoryBase_Edit_Custom : BasePage
    {
        DataService.BLL.pro_exam_batch bll = new DataService.BLL.pro_exam_batch();

        DataService.BLL.admin_log log = new DataService.BLL.admin_log();
        DataService.BLL.admin_user bll_user = new DataService.BLL.admin_user();
        DataService.BLL.pro_theory_base bll_theory_base = new DataService.BLL.pro_theory_base();

        DataService.BLL.pro_theory_base_item bll_theory_base_item = new DataService.BLL.pro_theory_base_item();
        protected override void Page_Load(object sender, EventArgs e)
        {
            base.Page_Load(sender, e);
            if (!IsPostBack)
            {
                //var user = DataService.BLL.admin_user.load_login();
                //var user_login = bll_user.GetModel(user.user_id);

                BindDeviceType("TheoryBaseKnow", dp_know, "");
                DataLoad();
            }
        }

        public void DataLoad()
        {

            string Id = Request.Params["Id"];
            var theory_base = bll_theory_base.GetModel(Id);
            if (null != theory_base)
            {
                question_name.Text = theory_base.question;
                dp_kind.SelectedValue = theory_base.kind;
                dp_know.SelectedValue = theory_base.target;

                //r1.Text = theory_base.r1;
            }

            var list = bll_theory_base_item.GetModelList("theory_base_id='" + Id + "'").OrderBy(s => s.no).ToList();
            for (int i = 0; i < list.Count; i++)
            {
                var model = list[i];
                RadListBoxDestination.Items.Add(new RadListBoxItem(model.item));
                var list_item = RadListBoxDestination.Items[i];

                RadTextBox box = list_item.FindControl("option_name") as RadTextBox;
                if (null != box)
                {
                    box.Text = model.item;
                }
                RadioButtonList radbuttonlist = list_item.FindControl("RadioButtonList_Answer") as RadioButtonList;
                if (null != radbuttonlist)
                {
                    radbuttonlist.SelectedValue = model.is_answer.ToString();
                }
            }

            RadListBoxDestination.DataBind();

            ReorderAZ();

            /*
            RadListBoxDestination.DataSource = list;
            RadListBoxDestination.DataValueField = "id";
            RadListBoxDestination.DataTextField = "question";
            RadListBoxDestination.DataSortField = "question";
            RadListBoxDestination.DataBind();
            */
            var kind = dp_kind.SelectedValue;
            if (kind == "填空题" || kind == "简答题")
            {
                answer_write.Text = theory_base.answer;
            }

         
            if (kind == "单选题" || kind == "多选题")
            {
                btnAddItem.Visible = true;
                answer_write.Text = "";
                answer_write.Enabled = false;
            }
            else if (kind == "判断题")
            {
                btnAddItem.Visible = true;
                answer_write.Text = "";
                answer_write.Enabled = false;
            }
            else
            {
                btnAddItem.Visible = false;
                answer_write.Enabled = true;
            }
        }

        protected void RadListBoxDestination_Reordered(object sender, RadListBoxEventArgs e)
        {
            RadListBoxDestination.DataBind();
            ReorderAZ();
        }

        protected void RadListBoxDestination_Deleted(object sender, RadListBoxEventArgs e)
        {
            span_name.InnerHtml = "";
            RadListBoxDestination.DataBind();
            ReorderAZ();
        }

        protected void RadListBoxDestination_Deleting(object sender, RadListBoxDeletingEventArgs e)
        {
            if (RadListBoxDestination.Items.Count <= 2)
            {
                span_name.InnerHtml = "至少有两个选项！";
                e.Cancel = true;
            }
        }

        //添加单个选项
        protected void btnAddItem_Click(object sender, EventArgs e)
        {


            /*
            var item = new RadListBoxItem();
            item.Text = txt_additem.Text.Trim();
            var addItem = new RadListBoxItem(item.Text, item.Text);
            RadListBoxDestination.Items.Add(addItem);
            RadioButtonList radbuttonlist = addItem.FindControl("RadioButtonList_Answer") as RadioButtonList;
            if (null != radbuttonlist)
            {
                radbuttonlist.SelectedValue = RadioButtonList_answer.SelectedValue;
            }
            RadListBoxDestination.DataBind();
            */

            var kind = dp_kind.SelectedValue;
            if (string.IsNullOrEmpty(kind))
            {
                span_name.InnerHtml = "题目类型不能为空！";
                return;
            }
            if (kind == "简答题" || kind == "填空题")
            {
                span_name.InnerHtml = "该题目类型不能添加选项！";
                return;
            }
            if (kind == "判断题")
            {
                if (RadListBoxDestination.Items.Count >= 2)
                {
                    span_name.InnerHtml = "判断题只有两个选项！";
                    return;
                }
            }
            else if (kind == "单选题")
            {

            }
            else if (kind == "多选题")
            {

            }
            span_name.InnerHtml = "";
            AddNewItem();
            RadListBoxDestination.DataBind();
        }



        protected void btnSure_Click(object sender, EventArgs e)
        {
            btnSure.Enabled = false;
            string Id = Request.Params["Id"];
            var model = bll_theory_base.GetModel(Id);

            var user = DataService.BLL.admin_user.load_login();
            /*
            if (string.IsNullOrEmpty(dp_kind.SelectedValue))
            {
                RadAjaxManager1.Alert("题目类型不能为空！");
                return;
            }
            */

            if (string.IsNullOrEmpty(question_name.Text.Trim()))
            {
                RadAjaxManager1.Alert("题干不能为空！");
                btnSure.Enabled = true;
                return;
            }

            if (string.IsNullOrEmpty(dp_know.SelectedValue))
            {
                RadAjaxManager1.Alert("知识领域不能为空！");
                btnSure.Enabled = true;
                return;
            }

            int right_count = 0;
            List<string> list_answer = new List<string>();
            var questionTK = question_name.Text.Trim();
            var answerTK = answer_write.Text.Trim();
            if (dp_kind.SelectedValue != "简答题" && dp_kind.SelectedValue != "填空题")
            {
                var flag = CheckRightAnswerCount(RadListBoxDestination, ref right_count, list_answer);
                if (!flag)
                {
                    RadAjaxManager1.Alert("选项值不能为空！");
                    btnSure.Enabled = true;
                    return;
                }
            }
            var total_count = RadListBoxDestination.Items.Count;

            //判断题、单选题、多选题
            if (dp_kind.SelectedValue == "判断题")
            {
                if (total_count != 2)
                {
                    RadAjaxManager1.Alert("判断题只有两个选项！");
                    btnSure.Enabled = true;
                    return;
                }
                if (right_count != 1)
                {
                    RadAjaxManager1.Alert("判断题只有1个选项答案！");
                    btnSure.Enabled = true;
                    return;
                }
            }
            else if (dp_kind.SelectedValue == "单选题")
            {
                if (total_count < 2)
                {
                    RadAjaxManager1.Alert("单选题至少两个选项！");
                    btnSure.Enabled = true;
                    return;
                }
                if (right_count != 1)
                {
                    RadAjaxManager1.Alert("单选题只有1个选项答案！");
                    btnSure.Enabled = true;
                    return;
                }
            }
            else if (dp_kind.SelectedValue == "多选题")
            {
                if (total_count < 2)
                {
                    RadAjaxManager1.Alert("多选题至少两个选项！");
                    btnSure.Enabled = true;
                    return;
                }
                if (right_count < 2)
                {
                    RadAjaxManager1.Alert("多选题至少2个选项答案！");
                    btnSure.Enabled = true;
                    return;
                }
            }
            else if (dp_kind.SelectedValue == "简答题")
            {
                var answer = answer_write.Text.Trim();
                if (string.IsNullOrEmpty(answer))
                {
                    RadAjaxManager1.Alert("简答题答案不能为空！");
                    btnSure.Enabled = true;
                    return;
                }
            }
            else if (dp_kind.SelectedValue == "填空题")
            {
                var answer = answer_write.Text.Trim();
                if (string.IsNullOrEmpty(answer))
                {
                    RadAjaxManager1.Alert("填空题答案不能为空！");
                    btnSure.Enabled = true;
                    return;
                }

                var line2 = "__";

                questionTK = questionTK.Replace("__________", line2)
                                                 .Replace("_________", line2)
                                                 .Replace("________", line2)
                                                 .Replace("_______", line2)
                                                 .Replace("______", line2)
                                                .Replace("_____", line2)
                                                .Replace("____", line2)
                                                .Replace("___", line2);
                // var question_array = question.Split(new string[] { line2 }, StringSplitOptions.RemoveEmptyEntries);
                var question_count = ExamTheoryBase_Add_Custom.CountSubstringOccurrences(questionTK, line2);


                answerTK = answerTK.Replace("__________", line2)
                                               .Replace("_________", line2)
                                               .Replace("________", line2)
                                               .Replace("_______", line2)
                                               .Replace("______", line2)
                                              .Replace("_____", line2)
                                              .Replace("____", line2)
                                              .Replace("___", line2);
                var answer_array = answerTK.Split(new string[] { line2 }, StringSplitOptions.None);

                if (question_count != answer_array.Length)
                {
                    RadAjaxManager1.Alert(string.Format("填空题空格数：{0} ,与答案数：{1} 不一致！", question_count, answer_array.Length));
                    btnSure.Enabled = true;
                    return;
                }
            }

            #region  旧有判断
            /* old
            if (dp_kind.SelectedValue == "简答题")
            {
                if (string.IsNullOrEmpty(anwser_jianda.Text.Trim()))
                {
                    RadAjaxManager1.Alert("简答题答案不能为空！");
                    return;
                }
            }
            else
            {
                if (dp_answer.CheckedItems.Count <= 0)
                {
                    RadAjaxManager1.Alert("请选择答案！");
                    return;
                }
            }
            */
            #endregion

            var now = DateTime.Now;

            model.target = dp_know.SelectedValue;

            //model.kind = dp_kind.SelectedValue;
            model.question = question_name.Text.Trim();

            model.update_time = now;
            model.update_by = user.user_id;
            //model.r1 = r1.Text.Trim();
            //model.answer = string.Join(",", list_answer);
            if (dp_kind.SelectedValue == "填空题")
            {
                model.question = questionTK;
                model.answer = answerTK;
            }
            else if (dp_kind.SelectedValue == "简答题")
            {
                model.answer = answer_write.Text.Trim();

            }
            else //其它题型
            {
                model.answer = string.Join(",", list_answer);
            }

            var id = model.id;
            int index = 1;

            if (bll_theory_base.Update(model))
            {
                //log.write_log("添加题目成功。" + "名称：" + model.question + "，id：" + model.id);
                var list = bll_theory_base_item.GetModelList("theory_base_id='" + Id + "'").ToList();
                List<string> list_id = new List<string>();
                foreach (var xx in list)
                {
                    list_id.Add("'" + xx.id + "'");
                }

                if (list.Count > 0)
                {
                    var cmd = string.Join(",", list_id);
                    var delete_flag = bll_theory_base_item.DeleteList(cmd);
                }

                Dictionary<int, string> dic = new Dictionary<int, string>();
                string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
                var length = alphabet.Length;
                for (int i = 0; i < 26; i++)
                {
                    dic.Add(i, alphabet.Substring(i, 1));
                }

                for (int i = 0; i < RadListBoxDestination.Items.Count; i++)
                {
                    var list_item = RadListBoxDestination.Items[i];
                    var item = new DataService.Model.pro_theory_base_item();
                    item.id = BasePage.GetNextId(id, index++);
                    item.theory_base_id = id;
                    item.no = (i + 1);
                    if (dic.ContainsKey(i))
                    {
                        item.item_letter = dic[i];
                    }
                    item.create_by = user.user_id;
                    item.create_time = now;
                    item.item = list_item.Text;
                    RadTextBox box = list_item.FindControl("option_name") as RadTextBox;
                    if (null != box)
                    {

                    }
                    RadioButtonList radbuttonlist = list_item.FindControl("RadioButtonList_Answer") as RadioButtonList;
                    if (null != radbuttonlist)
                    {
                        item.is_answer = int.Parse(radbuttonlist.SelectedValue);
                    }

                    bll_theory_base_item.Add(item);
                }
                RadAjaxManager1.ResponseScripts.Add("alert('修改题目成功！');CloseAndRebind();");
            }
            else
            {
                RadAjaxManager1.Alert("修改题目失败！");
                btnSure.Enabled = true;
            }
        }



        protected void btnRowEdit_Click(object sender, EventArgs e)
        {
            var item = sender as LinkButton;
            var rad_item = item.Parent as RadListBoxItem; //item
            //var rad_list = item.Parent.Parent; //radlist
            var text = rad_item.Text;
            var value = rad_item.Value;

            var txtbox = rad_item.FindControl("option_name") as RadTextBox;
            if (txtbox.Text != text)
            {
                rad_item.Text = txtbox.Text.Trim();
            }

        }

        /// <summary>
        /// 更新选项值
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void option_name_TextChanged(object sender, EventArgs e)
        {
            var txtBox = sender as RadTextBox;
            var rad_item = txtBox.Parent as RadListBoxItem;
            if (null != rad_item)
            {
                rad_item.Text = txtBox.Text.Trim();
            }
        }

        /// <summary>
        /// 检查选项值
        /// </summary>
        /// <param name="RadListBoxDestination"></param>
        /// <param name="count"></param>
        /// <returns></returns>
        public static bool CheckRightAnswerCount(RadListBox RadListBoxDestination, ref int _right_count, List<string> list_answer)
        {
            int right_count = 0;

            Dictionary<int, string> dic = new Dictionary<int, string>();
            string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
            var length = alphabet.Length;
            for (int i = 0; i < 26; i++)
            {
                dic.Add(i, alphabet.Substring(i, 1));
            }

            for (int i = 0; i < RadListBoxDestination.Items.Count; i++)
            {
                var list_item = RadListBoxDestination.Items[i];
                /*
                RadTextBox box = list_item.FindControl("option_name") as RadTextBox;
                if (null != box){}*/
                if (string.IsNullOrEmpty(list_item.Text))
                {
                    return false;
                }
                RadioButtonList radbuttonlist = list_item.FindControl("RadioButtonList_Answer") as RadioButtonList;
                if (null != radbuttonlist)
                {
                    if (radbuttonlist.SelectedValue == "1")
                    {
                        //list_answer.Add((i + 1).ToString());
                        list_answer.Add(dic[i]);
                        right_count++;
                    }
                }
            }
            _right_count = right_count;
            return true;
        }



        public void AddNewItem()
        {
            Dictionary<int, string> dic = new Dictionary<int, string>();
            string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
            var length = alphabet.Length;
            for (int i = 0; i < 26; i++)
            {
                dic.Add(i, alphabet.Substring(i, 1));
            }
            var item = new RadListBoxItem();
            item.Text = txt_additem.Text.Trim();
            var addItem = new RadListBoxItem(item.Text, item.Text);
            RadListBoxDestination.Items.Add(addItem);

            var added_index = addItem.Index;

            Label labelAZ = addItem.FindControl("labelAZ") as Label;
            if (null != labelAZ)
            {
                if (dic.ContainsKey(added_index))
                {
                    labelAZ.Text = dic[added_index];
                }
            }
        }

        public void ReorderAZ()
        {
            Dictionary<int, string> dic = new Dictionary<int, string>();
            string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
            var length = alphabet.Length;
            for (int i = 0; i < 26; i++)
            {
                dic.Add(i, alphabet.Substring(i, 1));
            }
            for (int i = 0; i < RadListBoxDestination.Items.Count; i++)
            {
                var item = RadListBoxDestination.Items[i];
                var added_index = item.Index;
                Label labelAZ = item.FindControl("labelAZ") as Label;
                if (null != labelAZ)
                {
                    if (dic.ContainsKey(added_index))
                    {
                        labelAZ.Text = dic[added_index];
                    }
                }
            }
        }


    }
}