using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Linq;
using Datalib.Linq;
using Datalib.EntityClasses;
using Datalib.FactoryClasses;
using Datalib.HelperClasses;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Validation;
using OpenXmlPowerTools;

namespace Omega.Forms
{
    public partial class frmCreateQuiz : Omega.BasicForms.frmCommon
    {
        public List<TblQuizEntity> QuizList = new List<TblQuizEntity>();
        public frmCreateQuiz()
        {
            InitializeComponent();
        }

        private void frmCreateQuiz_Load(object sender, EventArgs e)
        {
            LinqMetaData meta = new LinqMetaData(adapter);
            var temps = meta.TblQuizTemplate.OrderBy(m => m.TrainingTypeId);
            this.QuizTemplate.Properties.DataSource = temps;
            LinqMetaData Meta = new LinqMetaData(adapter);
            this.repoQuizTemplate.DataSource = Meta.TblQuizTemplate;
        }

        private void Create_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            // Get Template
            string QuizTemplateID = this.QuizTemplate.EditValue.ToString();
            string QuizCode = this.QuizCode.Text;
            LinqMetaData meta = new LinqMetaData(adapter);
            var CurQuizTempate = meta.TblQuizTemplate.Where(m => m.QuizTemplateId == QuizTemplateID).FirstOrDefault();
            var CurQuizTemplateDetail = meta.TblQuizTemplateDetail.Where(m => m.QuizTemplateId == QuizTemplateID).ToList<TblQuizTemplateDetailEntity>();
            TblQuizEntity CurrQuiz = new TblQuizEntity(Guid.NewGuid().ToString("N"));
            CurrQuiz.QuizName = this.QuizName.Text;
            CurrQuiz.QuizTime = Convert.ToInt16(this.QuizTime.EditValue);
            CurrQuiz.QuizYear = Convert.ToInt16(this.QuizYear.EditValue);
            CurrQuiz.QuizTemplateId = QuizTemplateID;
            CurrQuiz.QuizCode = QuizCode;
            EntityCollection<TblQuizQuestionEntity> QuizQuestions = CurrQuiz.TblQuizQuestions;

            List<string> ExclusiveQuestions = new List<string>();
                        
            switch(SettingInfo.Exclusive)
            {                                   
                case "1":
                   ExclusiveQuestions = (from q in meta.TblQuizQuestion where (q.TrainingTypeId == CurQuizTempate.TrainingTypeId) select q.QuestionId).ToList<string>();
                 
                   break;
                case "2":

                   ExclusiveQuestions = (from q in meta.TblQuizQuestion where (q.QuizTemplateId == CurQuizTempate.QuizTemplateId) select q.QuestionId).ToList<string>();

                   break;
                case "3":
                   ExclusiveQuestions = (from q in meta.TblQuizQuestion  select q.QuestionId).ToList<string>();
                   break;
            }
          

            foreach (var QuizDetail in CurQuizTemplateDetail)
            {

                int QuestionNum = (int)QuizDetail.QuestionNum;
                string SubjectID = QuizDetail.SubjectId;
                string Level = QuizDetail.Level;
                string Difficulty = QuizDetail.Difficulty;
                string FieldID = QuizDetail.FieldId;
                List<Quiz> Questions;
                if (QuizDetail.Difficulty == "A")
                {
                    
                    if(QuizDetail.Level=="A")
                    {
                        Questions = (from q in meta.TblQuestion
                                     where (q.Exclusive != true && q.SubjectId == SubjectID && q.FieldId == FieldID && !(from o in ExclusiveQuestions select o).Contains(q.QuestionId))
                                     select new Quiz { QuestionId = q.QuestionId, Order = 0 }).ToList();
                    }
                    else
                    {
                        Questions = (from q in meta.TblQuestion
                                     where (q.Exclusive != true && q.SubjectId == SubjectID && q.FieldId == FieldID && q.Level == Level && !(from o in ExclusiveQuestions select o).Contains(q.QuestionId))
                                     select new Quiz { QuestionId = q.QuestionId, Order = 0 }).ToList();

                    }

                }

                else
                {
                  
                    if (QuizDetail.Level == "A")
                    {
                        Questions = (from q in meta.TblQuestion
                                     where (q.Exclusive != true && q.SubjectId == SubjectID && q.FieldId == FieldID && q.Difficulty == Difficulty && !(from o in ExclusiveQuestions select o).Contains(q.QuestionId))
                                     select new Quiz { QuestionId = q.QuestionId, Order = 0 }).ToList();
                       
                    } else
                    {
                        Questions = (from q in meta.TblQuestion
                                     where (q.Exclusive != true && q.SubjectId == SubjectID && q.FieldId == FieldID && q.Difficulty == Difficulty && q.Level == Level && !(from o in ExclusiveQuestions select o).Contains(q.QuestionId))
                                     select new Quiz { QuestionId = q.QuestionId, Order = 0 }).ToList();
                    }
                   
                }



                if (Questions.Count < QuestionNum + SettingInfo.MinQuestionNum -1)
                {
                   
                    frmWarning frm = new frmWarning();
                    frm.RestQuestionNum.Text = Questions.Count.ToString();
                    frm.QuizTemplateDetai = QuizDetail;
                    frm.LoadData();
                    frm.ShowDialog();
                }
                
                Random rnd = new Random();

                foreach (var q in Questions)
                {
                    q.Order = rnd.Next(1, 1000);
                }


                foreach (var m in Questions.OrderBy(m => m.Order).Take(QuestionNum))
                {
                    TblQuizQuestionEntity QuizQuestion = QuizQuestions.AddNew();
                    QuizQuestion.UniqueId = Guid.NewGuid().ToString("N");
                    QuizQuestion.QuestionId = m.QuestionId;
                    QuizQuestion.QuizTemplateId = QuizTemplateID;
                    QuizQuestion.TrainingTypeId = CurQuizTempate.TrainingTypeId;
                    

                }
                
            }

            adapter.SaveEntity(CurrQuiz, true, true);
            QuizList.Add(CurrQuiz);
               
            grdQuiz.DataSource = null;

            grdQuiz.DataSource = QuizList;

        }

        private void Print_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            this.progressPanel.Visible = true;
            List<Source> sources = new List<Source>();
            LinqMetaData meta = new LinqMetaData(adapter);
            this.progressPanel.Visible = false;
            if (QuizList.Count > 0)
            {
                TblQuizEntity CurrQuiz = (TblQuizEntity)QuizList[this.BindingContext[QuizList].Position];
                Utilities.PrintQuiz(CurrQuiz);  
                          
            }
            this.progressPanel.Visible = false;     

        }


        private void QuizTemplate_EditValueChanged(object sender, EventArgs e)
        {

            LinqMetaData meta = new LinqMetaData(adapter);
            string QuizTemplateId = this.QuizTemplate.EditValue.ToString();
            string QuizTemplateCode = meta.TblQuizTemplate.Where(m => m.QuizTemplateId == QuizTemplateId).FirstOrDefault().QuizTemplateCode;
            this.QuizCode.Text = QuizTemplateCode + "-" + this.QuizYear.Text;
        }

        private void CloseForm_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            this.Close();
        }

        private void PrintAnswer_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            this.progressPanel.Visible = true;
            List<Source> sources = new List<Source>();
            LinqMetaData meta = new LinqMetaData(adapter);
            this.progressPanel.Visible = false;
            if (QuizList.Count > 0)
            {
                TblQuizEntity CurrQuiz = (TblQuizEntity)QuizList[this.BindingContext[QuizList].Position];
                Utilities.PrintQuizAnswer(CurrQuiz);

            }
            this.progressPanel.Visible = false;   
        }
    }
}