using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.Windows;
using Hermes.Model;
using Excel = Microsoft.Office.Interop.Excel;

namespace Hermes {
    public partial class ImportWindow : Window {
        private bool importing = false;
        private Excel.Application xlApp;
        private Excel.Workbook xlWb;
        private static Regex communeRgx = new Regex(@"(\d{5})(.*)");

        private static string prepareValue(object value, bool notNull = false) {
            if(value != null) {
                return value.ToString().Trim();
            }
            if(notNull) {
                return "";
            } else {
                return null;
            }
        }

        public ImportWindow(Window parent, string filepath) {
            InitializeComponent();
            Owner = parent;
            List<string> sheets = new List<string>();

            adresseTextBox.Text = Path.GetFileNameWithoutExtension(filepath);

            xlApp = new Excel.Application();
            xlWb = xlApp.Workbooks.Open(filepath);
            for(int i = 1; i <= xlWb.Sheets.Count; i++) {
                Excel.Worksheet sheet = xlWb.Sheets.Item[i];
                sheets.Add(sheet.Name);
            }
            sheetComboBox.ItemsSource = sheets;

            if(sheets.Count == 0) {
                importButton.IsEnabled = false;
            } else {
                sheetComboBox.SelectedIndex = 0;
            }
        }

        private void Importer_Click(object sender, RoutedEventArgs e) {
            importing = true;
            Excel.Worksheet sheet = xlWb.Sheets.Item[sheetComboBox.SelectedIndex + 1];
            string cell = prepareValue(sheet.Cells[1, "J"].Value);
            bool complement = false;
            string rue = adresseTextBox.Text == null ? "" : adresseTextBox.Text;
            if(!string.IsNullOrEmpty(cell)) {
                complement = true;
            }

            for(int i = 2; string.IsNullOrEmpty(prepareValue(sheet.Cells[i, "A"].Value)) != true ; i++) {
                Citoyen citoyen = new Citoyen();
                citoyen.Nom = prepareValue(sheet.Cells[i, "A"].Value);
                citoyen.Prenom = prepareValue(sheet.Cells[i, "B"].Value);
                if(complement) {
                    string num = prepareValue(sheet.Cells[i, "D"].Value);
                    if(residenceCheckBox.IsChecked == true) {
                        citoyen.Adresse = rue;
                        citoyen.AdresseNumeroBatiment = num;
                    } else {
                        citoyen.Adresse = $"{num} {rue}";
                    }
                    citoyen.Mail = prepareValue(sheet.Cells[i, "E"].Value);
                    citoyen.Tel = prepareValue(sheet.Cells[i, "F"].Value);
                    citoyen.TelPort = prepareValue(sheet.Cells[i, "G"].Value);
                    string res = prepareValue(sheet.Cells[i, "H"].Value, true);
                    if(res.ToLower().Replace(" ", "").Equals("r.secondaire")) {
                        citoyen.TypeResidence = true;
                    } else {
                        citoyen.TypeResidence = false;
                    }
                    if(citoyen.TypeResidence == true) {
                        citoyen.AdresseExt = prepareValue(sheet.Cells[i, "I"].Value);
                        Match m = communeRgx.Match(prepareValue(sheet.Cells[i, "J"].Value, true));
                        if(m.Success) {
                            citoyen.AdresseExtCP = m.Groups[1].Value.Trim();
                            citoyen.AdresseExtVille = m.Groups[2].Value.Trim();
                        }
                    }
                } else {
                    string num = prepareValue(sheet.Cells[i, "C"].Value);
                    if(residenceCheckBox.IsChecked == true) {
                        citoyen.Adresse = rue;
                        citoyen.AdresseNumeroBatiment = num;
                    } else {
                        citoyen.Adresse = $"{num} {rue}";
                    }
                    citoyen.Mail = prepareValue(sheet.Cells[i, "D"].Value);
                    citoyen.Tel = prepareValue(sheet.Cells[i, "E"].Value);
                    citoyen.TelPort = prepareValue(sheet.Cells[i, "F"].Value);
                    string res = prepareValue(sheet.Cells[i, "G"].Value, true);
                    if(res.ToLower().Replace(" ", "").Equals("r.secondaire")) {
                        citoyen.TypeResidence = true;
                    } else {
                        citoyen.TypeResidence = false;
                    }
                    if(citoyen.TypeResidence == true) {
                        citoyen.AdresseExt = prepareValue(sheet.Cells[i, "H"].Value);
                        Match m = communeRgx.Match(prepareValue(sheet.Cells[i, "I"].Value, true));
                        if(m.Success) {
                            citoyen.AdresseExtCP = m.Groups[1].Value.Trim();
                            citoyen.AdresseExtVille = m.Groups[2].Value.Trim();
                        }
                    }
                }
                citoyen.AdresseBatiment = batimentTextBox.Text;
                citoyen.Quartier = quartierTextBox.Text;
                citoyen.DateCreation = DateTime.Now;
                citoyen.DateModification = DateTime.Now;
                ModelContext.Getinstance().CitoyenSet.Add(citoyen);
            }

            ModelContext.Getinstance().SaveChanges();
            Marshal.FinalReleaseComObject(sheet);
            importing = false;
        }

        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) {
            if(importing) {
                e.Cancel = true;
                return;
            }

            xlWb.Close();
            Marshal.FinalReleaseComObject(xlWb);
            xlApp.Quit();
            Marshal.FinalReleaseComObject(xlApp);
        }
    }
}