// Copyright (c) 2017 schick Informatik
// Description: PO Nummer Übersicht. Ergänzung Nummern. Excel Export
//

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Windows;
using System.Windows.Controls;
using Microsoft.Win32;

using Microsoft.Office.Interop.Excel;
using System.Runtime.InteropServices;

using bsmd.database;
using ExcelDataReader;

namespace ENI2.Controls
{
    /// <summary>
    /// Interaction logic for MaerskListControl.xaml
    /// </summary>
    public partial class MaerskListControl : UserControl
    {

        #region Fields        

        private List<MessageCore> searchResult = new List<MessageCore>();
        private readonly List<MessageCore> filteredResult = new List<MessageCore>();

        #endregion

        #region Construction

        public MaerskListControl()
        {
            InitializeComponent();
            Loaded += POList_Loaded;
            this.dateTimePickerFrom.Value = DateTime.Today.AddDays(-14);
            this.dateTimePickerTo.Value = DateTime.Today.AddDays(14);
        }

        #endregion

        #region control event handler

        private void POList_Loaded(object sender, RoutedEventArgs e)
        {

        }

        private void dataGridPOCores_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)
        {
            if (e.EditAction == DataGridEditAction.Commit)
            {
                if (e.Column == gridColumnPONumber)
                {
                    // validate for "true" number
                    var el = e.EditingElement as System.Windows.Controls.TextBox;
                    if (!el.Text.IsDigitsOnly())
                    {
                        el.Text = string.Empty;
                        e.Cancel = true;
                    }
                    else
                    {
                        // buttonSaveChanges.IsEnabled = true;
                        MessageCore editedCore = this.filteredResult[e.Row.GetIndex()];
                        editedCore.IsDirty = true;
                    }
                }
                if(e.Column == gridColumnGroup)
                {
                    var el = e.EditingElement as ComboBox;
                    DictionaryEntry selectedItem = (DictionaryEntry) el.SelectedItem;
                    MessageCore.CoreFlags coreFlag = (MessageCore.CoreFlags) Enum.Parse(typeof(MessageCore.CoreFlags), selectedItem.Value.ToString());
                    MessageCore editedCore = this.filteredResult[e.Row.GetIndex()];
                    // clear all first
                    editedCore.SetFlag(false, MessageCore.CoreFlags.MAERSK_BHV);
                    editedCore.SetFlag(false, MessageCore.CoreFlags.SEAGO_BHV);
                    editedCore.SetFlag(false, MessageCore.CoreFlags.SEAGO_WHV);
                    editedCore.SetFlag(false, MessageCore.CoreFlags.HOEGH);
                    if (coreFlag != MessageCore.CoreFlags.NONE)
                    {
                        editedCore.SetFlag(true, coreFlag);
                    }
                    // buttonSaveChanges.IsEnabled = true;
                    editedCore.IsDirty = true;
                }
                if(e.Column == gridColumnATA)
                {
                    var el = e.EditingElement as System.Windows.Controls.TextBox;
                    if(DateTime.TryParse(el.Text, out DateTime localATA))
                    {
                        MessageCore editedCore = this.filteredResult[e.Row.GetIndex()];
                        editedCore.ATA = DateTime.SpecifyKind(localATA, DateTimeKind.Local).ToUniversalTime();
                        // buttonSaveChanges.IsEnabled = true;
                        editedCore.IsDirty = true;
                    } 
                    else
                    {
                        el.Text = string.Empty;
                        e.Cancel = true;
                    }
                }
            }
        }

        #endregion

        #region private methods

        private void PerformSearch()
        {
            this.dataGridPOCores.ItemsSource = null;
            this.filteredResult.Clear();

            Dictionary<MessageCore.SearchFilterType, string> filterDict = new Dictionary<MessageCore.SearchFilterType, string>();            

            // Die Suche findet in dem eingestellten Intervall statt
            uint from = this.dateTimePickerFrom.Value.Value.ToUniversalTime().ToUnixTimeStamp();
            uint to = this.dateTimePickerTo.Value.Value.ToUniversalTime().ToUnixTimeStamp();
            filterDict.Add(MessageCore.SearchFilterType.FILTER_ETA, string.Format("{0}:{1}", from.ToString() ?? "", to.ToString() ?? ""));
            // eingeschränkt auf flags
            filterDict.Add(MessageCore.SearchFilterType.FILTER_FLAG_EQ, "0");

            // suche auslösen
            this.searchResult = DBManager.GetSingleCon(Properties.Settings.Default.ConnectionString).GetMessageCoresWithFilters(filterDict);

            // alle anderen Häfen weg
            this.searchResult.RemoveAll(item => (item.PoC == null) || (!item.PoC.Equals("DEBRV") && !item.PoC.Equals("DEWHV") && !item.PoC.Equals("DEWVN")));

            // sortieren nach ETA (kombiniert)
            searchResult.Sort((x, y) => DateTime.Compare(x.ETADisplay ?? DateTime.MaxValue, y.ETADisplay ?? DateTime.MaxValue));

            this.dataGridPOCores.SelectedItem = null;
            this.filteredResult.AddRange(searchResult);
            this.dataGridPOCores.ItemsSource = this.filteredResult;
        }

        #endregion

        #region button event handler

        private void buttonLoad_Click(object sender, RoutedEventArgs e)
        {
            Util.UIHelper.SetBusyState();
            this.PerformSearch();
        }

        private void buttonImport_Click(object sender, RoutedEventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog
            {
                Filter = "Excel Files|*.xls;*.xlsx"
            };
            if (ofd.ShowDialog() ?? false)
            {
                FileStream stream;
                try
                {
                    stream = File.Open(ofd.FileName, FileMode.Open, FileAccess.Read);
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
                    return;
                }

                using (IExcelDataReader reader = ExcelReaderFactory.CreateReader(stream))
                {
                    List<MessageCore> importCores = new List<MessageCore>();

                    try
                    {
                        do
                        {
                            while (reader.Read())
                            {
                                if (reader.FieldCount < 13)
                                {
                                    throw new InvalidDataException("Sheet must have 13 columns of data");
                                }
                                MessageCore core = new MessageCore();
                                if (reader.IsDBNull(0) && reader.IsDBNull(1)) continue;
                                /*
                                if (!reader.IsDBNull(0)) crew.CrewMemberLastName = reader.GetString(0).Clean();

                                if (crew.CrewMemberLastName.Equals("Family Name") || (crew.CrewMemberLastName.Trim().Length == 0)) continue;
                                if (!reader.IsDBNull(1)) crew.CrewMemberFirstName = reader.GetString(1).Clean();
                                if (!reader.IsDBNull(2)) crew.CrewMemberGender = GlobalStructures.ParseGender(reader.GetString(2));
                                if (!reader.IsDBNull(3)) crew.CrewMemberDuty = reader.GetString(3).Clean();
                                if (!reader.IsDBNull(4)) crew.CrewMemberNationality = reader.GetString(4).Substring(0, 2).ToUpper();
                                if (!reader.IsDBNull(5)) crew.CrewMemberPlaceOfBirth = reader.GetString(5).Clean();
                                if (!reader.IsDBNull(6)) crew.CrewMemberCountryOfBirth = reader.GetString(6).Substring(0, 2).ToUpper();
                                if (!reader.IsDBNull(7)) crew.CrewMemberDateOfBirth = reader.GetDateTime(7);
                                if (!reader.IsDBNull(8)) crew.CrewMemberIdentityDocumentType = GlobalStructures.ReadIdentityDocumentType(reader.GetString(8));
                                if (!reader.IsDBNull(9)) crew.CrewMemberIdentityDocumentId = this.getValueAsString(reader, 9).Clean();
                                if (!reader.IsDBNull(10)) crew.CrewMemberIdentityDocumentIssuingState = reader.GetString(10).Substring(0, 2).ToUpper();
                                if (!reader.IsDBNull(11)) crew.CrewMemberIdentityDocumentExpiryDate = reader.GetDateTime(11);
                                if (!reader.IsDBNull(12)) crew.CrewMemberVisaNumber = this.getValueAsString(reader, 12).Clean();
                                */
                                importCores.Add(core);
                            }
                        } while (reader.NextResult());
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show("Error reading Excel: " + ex.Message, Properties.Resources.textCaptionError, MessageBoxButton.OK, MessageBoxImage.Error);
                    }

                    // we only want cores for the next 3 days
                    if (importCores.Count > 0)
                    {
                        
                        
                    }
                }

                stream.Close();
            }
        }

        private void buttonExport_Click(object sender, RoutedEventArgs e)
        {

        }

        #endregion

    }
}