using System;
using System.Collections.Generic;
using System.Data.SqlTypes;
using Datalib.EntityClasses;
using Datalib.HelperClasses;
using System.Linq;
using DevExpress.XtraEditors;
using System.Windows.Forms;
using Datalib.Linq;
using PatientMan;

namespace PatientMan.Forms
{
    public partial class frmPatientLists : PatientMan.BasicForms.frmCommon
    {
        public EntityCollection <TblPatientEntity> PatientsCollection =  new EntityCollection<TblPatientEntity>();
        private int SelectedIndex { get; set; }
        public frmPatientLists()
        {
            InitializeComponent();
        }
        public override void  LoadData()
        {
            this.SelectedIndex = 0;
            this.barFilter.EditValue = cbFilter.Items[0];
            LoadAll();
            this.BeginDate.EditValue = DateTime.Now.AddYears(-1);
            this.EndDate.EditValue = DateTime.Now;

        }

        public void LoadAll()
        {
            colStatus.Visible = false; colReceiveServiceDate.Visible = false;
            this.SelectedIndex = 0;
            barAutoUpdate.Enabled = false;
            var Patients = new EntityCollection<TblPatientEntity>();
            adapter.FetchEntityCollection(Patients, null);
         
            int No = 1;
            grdClients.DataSource = (from q in Patients select new { No = No++,ARV = q.DateofArv != null ? true : false, q.PatientId,PatientName=strUtil.Decrypt(q.PatientName), q.Sex, q.BirthYear, q.TelephoneNo }).ToList();
            grdClients.Patients = Patients.Select(q => q.PatientId).ToList();

          
        }

        private void LoadUnderManagement()
        {
            colStatus.Visible = false; colReceiveServiceDate.Visible = false;
            this.SelectedIndex = 1;
            int No = 0;
            var exams = new EntityCollection<TblExaminationInfoEntity>();
            var patients = new EntityCollection<TblPatientEntity>();
            adapter.FetchEntityCollection(exams, null);
            adapter.FetchEntityCollection(patients, null);
            barAutoUpdate.Enabled = false;

            List<string> noEnds = exams.GroupBy(q => q.PatientId).Select(g => g.OrderBy(m => m.ExamDate).Last()).ToList().Where(s => s.EndExamDate == null).Select(t => t.PatientId).ToList();

            var ds = (from q in patients where (noEnds.Contains(q.PatientId))
                      select new { No = No++, ARV = q.DateofArv != null ? true : false, q.PatientId, PatientName = strUtil.Decrypt(q.PatientName), q.Sex, q.BirthYear, q.TelephoneNo }).ToList();
            grdClients.DataSource = ds;
            grdClients.Patients = ds.Select(q => q.PatientId).ToList();
        }
        private void LoadMovedFrom()
        {
            barAutoUpdate.Enabled = false;
            int No = 0;
            colStatus.Visible = false; colReceiveServiceDate.Visible = false;
            this.SelectedIndex = 2;
            var Patients = new EntityCollection<TblPatientEntity>();
            adapter.FetchEntityCollection(Patients, null);
            var ds = (from q in Patients
             where (q.Dateofreferral != null && q.Dateofreferral >= (DateTime)BeginDate.EditValue && q.Dateofreferral <= (DateTime) EndDate.EditValue)
                      select new { No = No++, ARV = q.DateofArv != null ? true : false, q.PatientId, PatientName = strUtil.Decrypt(q.PatientName), q.Sex, q.BirthYear, q.TelephoneNo }).ToList();
            grdClients.DataSource = ds;
            grdClients.Patients = ds.Select(q => q.PatientId).ToList();
        }

        private void LoadMovedTo()
        {
            barAutoUpdate.Enabled = true;
            int No = 1;
            colStatus.Visible = false; colReceiveServiceDate.Visible = false;
            this.SelectedIndex = 3;
            var referrals = new EntityCollection<TblReferralsToEntity>();
            var patients = new EntityCollection<TblPatientEntity>();
            adapter.FetchEntityCollection(referrals, null);
            adapter.FetchEntityCollection(patients, null);
            var lastreferral = (from q in referrals
                                where q.TypeId == "09" && q.EndDate >= (DateTime)BeginDate.EditValue && q.EndDate <= (DateTime)EndDate.EditValue
            group q by q.PatientId
             into groups
             select groups.OrderBy(p => p.EndDate).Last<TblReferralsToEntity>()).ToList<TblReferralsToEntity>();
             var ds = (from q in lastreferral join p in patients on q.PatientId equals p.PatientId
                       select new { No = No++, ARV = p.DateofArv != null ? true : false, p.PatientId, PatientName = strUtil.Decrypt(p.PatientName), p.Sex, p.BirthYear, p.TelephoneNo, Status = q.Status == 1 ? true : false, q.ReceiveServiceDate }).ToList();
            colStatus.Visible = true; colReceiveServiceDate.Visible = true;
            grdClients.DataSource = ds;
            grdClients.Patients = ds.Select(q => q.PatientId).ToList();
        }
        private void LoadDeaths()
        {
            int No = 1;
            colStatus.Visible = false; colReceiveServiceDate.Visible = false;
            this.SelectedIndex = 4;
            var Patients = new EntityCollection<TblPatientEntity>();
            adapter.FetchEntityCollection(Patients, null);
            var ds = (from p in Patients
                      where (p.DeathDate != null && p.DeathDate >= (DateTime)BeginDate.EditValue && p.DeathDate <= (DateTime)EndDate.EditValue)
                      select new { No = No++, ARV = p.DateofArv != null ? true : false, p.PatientId, PatientName = strUtil.Decrypt(p.PatientName), p.Sex, p.BirthYear, p.TelephoneNo }).ToList();
            grdClients.DataSource = ds;
            grdClients.Patients = ds.Select(q => q.PatientId).ToList();
            barAutoUpdate.Enabled = true;
        }

        private void LostFollowup()
        {

            var exams = new EntityCollection<TblExaminationInfoEntity>();
            var patients = new EntityCollection<TblPatientEntity>();
            var lostfollowups = new EntityCollection<TblReferralsToEntity>();
            DateTime thisToday = DateTime.Today;
            adapter.FetchEntityCollection(exams, null);
            adapter.FetchEntityCollection(patients, null);
            adapter.FetchEntityCollection(lostfollowups, null);
            var allLostFolowup = (from element in lostfollowups
                             where element.TypeId == "10"
                             group element by element.PatientId
                                 into groups
                                 select groups.Last()).ToList();

            List<string> exclusive = (from element in exams
                group element by element.PatientId
                into groups
                select groups.OrderBy(p => p.ExamDate).Last()).ToList()
                .Where(q => q.EndExamDate != null)
                .ToList()
                .Select(m => m.PatientId)
                .ToList();
            int No=1;
            var result = (from q in allLostFolowup
                          join p in patients on q.PatientId equals  p.PatientId where (!exclusive.Contains(q.PatientId))
                          select new { No = No++, ARV = p.DateofArv != null ? true : false, p.PatientId, PatientName = strUtil.Decrypt(p.PatientName), p.Sex, p.BirthYear, p.TelephoneNo }).ToList();
            grdClients.DataSource = null;
            grdClients.DataSource = result;
            grdClients.Patients = result.Select(q => q.PatientId).ToList();
            barAutoUpdate.Enabled = false;
           
        }

        private void Addnew_Click(object sender, EventArgs e)
        {
            var frm = new frmPatientInfo();
            frm.PatientsCollection = new EntityCollection<TblPatientEntity>();
            frm.usrPatientInfo.Enabled = true;
            frm.NewRecord();
            frm.ShowDialog();
        }

        private void gridView_DoubleClick(object sender, EventArgs e)
        {
            var frm = new frmPatientInfo();
            frm.PatientsCollection = new EntityCollection<TblPatientEntity>();
            var Patientid = gridView.GetFocusedRowCellValue(colPatientId).ToString();
            var PatientInfo = new TblPatientEntity(Patientid);
            adapter.FetchEntity(PatientInfo);
            frm.PatientsCollection.Add(PatientInfo);
            frm.PatientInfo = PatientInfo;
            frm.LoadData();
            frm.ShowDialog();
        }

        private void View_Click(object sender, EventArgs e)
        {
            var frm = new frmPatientInfo();
            frm.PatientsCollection = new EntityCollection<TblPatientEntity>();
            var Patientid = gridView.GetFocusedRowCellValue(colPatientId).ToString();
            var PatientInfo = new TblPatientEntity(Patientid);
            adapter.FetchEntity(PatientInfo);
            frm.PatientsCollection.Add(PatientInfo);
            frm.PatientInfo = PatientInfo;
            frm.LoadData();
            frm.ShowDialog();
        }

        

        private void cbFilter_EditValueChanged(object sender, EventArgs e)
        {
           this.SelectedIndex =((ComboBoxEdit)sender).SelectedIndex;
           if (this.SelectedIndex <=1 || this.SelectedIndex == 5 )
           {
               this.BeginDate.Visibility = DevExpress.XtraBars.BarItemVisibility.Never;
               this.EndDate.Visibility = DevExpress.XtraBars.BarItemVisibility.Never;
           }
           else
           {

               this.BeginDate.Visibility = DevExpress.XtraBars.BarItemVisibility.Always;
               this.EndDate.Visibility = DevExpress.XtraBars.BarItemVisibility.Always;
           }

        }

        private void barFilterButton_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            switch (SelectedIndex)
            {
                case 0:
                    LoadAll();
                    break;
                case 1:
                    LoadUnderManagement();
                    break;
                case 2:
                    LoadMovedFrom();
                    break;
                case 3:
                    LoadMovedTo();
                    break;
                case 4:
                    LoadDeaths();
                    break;
                case 5: LostFollowup();
                    break;
            }
        }

        private void barAutoUpdate_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            switch (SelectedIndex)
            {
                case 0:
                    
                    break;
                case 1:
                    
                    break;
                case 2:
                    
                    break;
                case 3:
                    MoveToEnd();
                    break;
                case 4:
                    DeathsEnd();
                    break;
                case 5: 
                    break;
            }
            MessageBox.Show("Task is completed");
        }

       
        private void DeathsEnd()
        {

            for (int i = 0; i < gridView.DataRowCount; i++)
            {
                string Patientid = gridView.GetRowCellValue(i, colPatientId).ToString();
                LinqMetaData metadata = new LinqMetaData();
                metadata.AdapterToUse = adapter;
                if (metadata.TblTreatmentInfo.Where(m => m.PatientId == Patientid).Where(m => m.TreatmentId == "01").Count() > 0)
                {
                    string Unique = metadata.TblTreatmentInfo.Where(m => m.PatientId == Patientid).Where(m => m.TreatmentId == "01").OrderByDescending(m => m.TreatmentSdate).First().UniqueKey;
                    TblTreatmentInfoEntity TreatmentInfo = new TblTreatmentInfoEntity(Unique);
                    DateTime EndDate = metadata.TblPatient.Where(m => m.PatientId == Patientid).First().DeathDate.Value;
                    adapter.FetchEntity(TreatmentInfo);
                    TreatmentInfo.TreatmentEdate = EndDate;
                    TreatmentInfo.ReasonId = "11";
                    adapter.SaveEntity(TreatmentInfo);
                }

                if (metadata.TblExaminationInfo.Where(m => m.PatientId == Patientid).Count() > 0)
                {
                    string Unique = metadata.TblExaminationInfo.Where(m => m.PatientId == Patientid).OrderByDescending(m => m.EndExamDate).First().UniqueKey;
                    TblExaminationInfoEntity Exam = new TblExaminationInfoEntity(Unique);
                    DateTime EndDate = metadata.TblPatient.Where(m => m.PatientId == Patientid).First().DeathDate.Value;
                    adapter.FetchEntity(Exam);
                    Exam.EndExamDate = EndDate;
                    Exam.ReasonEnd = "11";
                    adapter.SaveEntity(Exam);
                }
            }
        
        }
        private void MoveToEnd()
        {
            for ( int i = 0; i < gridView.DataRowCount; i++)
         {
            string Patientid = gridView.GetRowCellValue(i,colPatientId).ToString();
             LinqMetaData metadata = new LinqMetaData();
             metadata.AdapterToUse = adapter;
             if (metadata.TblTreatmentInfo.Where(m => m.PatientId == Patientid).Where(m => m.TreatmentId == "01").Count() > 0)
             {
                 string Unique = metadata.TblTreatmentInfo.Where(m => m.PatientId == Patientid).Where(m => m.TreatmentId == "01").OrderByDescending(m => m.TreatmentSdate).First().UniqueKey;
                 TblTreatmentInfoEntity TreatnentInfo = new TblTreatmentInfoEntity(Unique);
                 DateTime EndDate = metadata.TblReferralsTo.Where(m => m.PatientId == Patientid).OrderByDescending(m => m.EndDate).First().EndDate.Value;
                 adapter.FetchEntity(TreatnentInfo);
                 TreatnentInfo.TreatmentEdate = EndDate;
                 TreatnentInfo.ReasonId = "09";
                 adapter.SaveEntity(TreatnentInfo);
             }

             if (metadata.TblExaminationInfo.Where(m => m.PatientId == Patientid).Count() > 0)
             {
                 string Unique = metadata.TblExaminationInfo.Where(m => m.PatientId == Patientid).OrderByDescending(m => m.EndExamDate).First().UniqueKey;
                 TblExaminationInfoEntity Exam = new TblExaminationInfoEntity(Unique);
                 DateTime EndDate = metadata.TblReferralsTo.Where(m => m.PatientId == Patientid).OrderByDescending(m => m.EndDate).First().EndDate.Value;
                 adapter.FetchEntity(Exam);
                 Exam.EndExamDate = EndDate;
                 Exam.ReasonEnd = "09";
                 adapter.SaveEntity(Exam);
             }



         }

        }

   

        private void Printing_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            this.grdClients.ShowPrintPreview();
        }

    

        private void barEdit_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            if (gridView.RowCount == 0) return;
            var frm = new frmPatientInfo();
            frm.PatientsCollection = new EntityCollection<TblPatientEntity>();
            var Patientid = gridView.GetFocusedRowCellValue(colPatientId).ToString();
            var PatientInfo = new TblPatientEntity(Patientid);
            adapter.FetchEntity(PatientInfo);
            frm.PatientsCollection.Add(PatientInfo);
            frm.PatientInfo = PatientInfo;
            frm.LoadData();
            frm.ShowDialog();
        }
        }

     
      
       
    }