Initial Commit

ViewModel/Dialogs/AddTransactionViewModel.cs

@@ -0,0 +1,301 @@
+using DebtMgr.Model;
+using GalaSoft.MvvmLight;
+using GalaSoft.MvvmLight.Command;
+using SQLiteNetExtensions.Extensions;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Windows;
+
+namespace DebtMgr.ViewModel.Dialogs
+{
+    public class AddTransactionViewModel : ViewModelBase
+    {
+        #region Public Properties
+
+        public event EventHandler RequestClose;
+        public TransactionType DialogMode { get; set; }
+
+        public Person PreselectedPerson { get; set; }
+
+        #endregion
+
+        #region WindowTitle (string) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="WindowTitle" />
+        /// </summary>
+        private string _windowTitle;
+
+        /// <summary>
+        /// Comment
+        ///</summary>
+        public string WindowTitle
+        {
+            get { return _windowTitle; }
+
+            set
+            {
+                _windowTitle = value;
+                RaisePropertyChanged(() => WindowTitle);
+            }
+        }
+
+        #endregion
+
+        #region AmountTextBoxText (string) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="AmountTextBoxText" />
+        /// </summary>
+        private string _amountTextBoxText;
+
+        /// <summary>
+        /// Comment
+        ///</summary>
+        public string AmountTextBoxText
+        {
+            get
+            {
+                return _amountTextBoxText;
+            }
+
+            set
+            {
+                _amountTextBoxText = value;
+                RaisePropertyChanged(() => AmountTextBoxText);
+                AddTransactionButtonClickCommand.RaiseCanExecuteChanged();
+            }
+        }
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Gets the amount text box text as number representation. </summary>
+        ///
+        /// <value> The amount text box text number representation. </value>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public double AmountTextBoxTextNumberRepresentation
+        {
+            get
+            {
+                if (string.IsNullOrWhiteSpace(_amountTextBoxText)) return 0.0;
+                return double.Parse(_amountTextBoxText, CultureInfo.InvariantCulture);
+            }
+        }
+
+        #endregion
+        #region DescriptionTextBoxText (string) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="DescriptionTextBoxText" />
+        /// </summary>
+        private string _descriptionTextBoxText;
+
+        /// <summary>
+        /// DescriptionTextBoxText
+        ///</summary>
+        public string DescriptionTextBoxText
+        {
+            get { return _descriptionTextBoxText; }
+
+            set
+            {
+                _descriptionTextBoxText = value;
+                RaisePropertyChanged(() => DescriptionTextBoxText);
+                AddTransactionButtonClickCommand.RaiseCanExecuteChanged();
+            }
+        }
+
+        #endregion
+        #region DatePickerSelectedDate (DateTime?) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="DatePickerSelectedDate" />
+        /// </summary>
+        private DateTime? _datePickerSelectedDate;
+
+        /// <summary>
+        /// Comment
+        ///</summary>
+        public DateTime? DatePickerSelectedDate
+        {
+            get { return _datePickerSelectedDate; }
+
+            set
+            {
+                _datePickerSelectedDate = value;
+                RaisePropertyChanged(() => DatePickerSelectedDate);
+                AddTransactionButtonClickCommand.RaiseCanExecuteChanged();
+            }
+        }
+
+        #endregion
+
+        #region PersonComboBoxItemSource (List<Person>) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="PersonComboBoxItemSource" />
+        /// </summary>
+        private List<Person> _personComboBoxItemSource;
+
+        /// <summary>
+        /// Comment
+        ///</summary>
+        public List<Person> PersonComboBoxItemSource
+        {
+            get { return _personComboBoxItemSource; }
+
+            set
+            {
+                _personComboBoxItemSource = value;
+                RaisePropertyChanged(() => PersonComboBoxItemSource);
+            }
+        }
+
+        #endregion
+        #region PersonComboBoxSelectedItem (Person) Property
+
+        /// <summary>
+        /// Privater Teil von <see cref="PersonComboBoxSelectedItem" />
+        /// </summary>
+        private Person _personComboBoxSelectedItem;
+
+        /// <summary>
+        /// Comment
+        ///</summary>
+        public Person PersonComboBoxSelectedItem
+        {
+            get { return _personComboBoxSelectedItem; }
+
+            set
+            {
+                _personComboBoxSelectedItem = value;
+                RaisePropertyChanged(() => PersonComboBoxSelectedItem);
+                AddTransactionButtonClickCommand.RaiseCanExecuteChanged();
+            }
+        }
+
+        #endregion
+
+        #region AddTransactionButtonClickCommand Command
+
+        /// <summary>
+        /// Private member backing variable for <see cref="AddTransactionButtonClickCommand" />
+        /// </summary>
+        private RelayCommand _addTransactionButtonClickCommand = null;
+
+        /// <summary>
+        /// Comment
+        /// </summary>
+        public RelayCommand AddTransactionButtonClickCommand => _addTransactionButtonClickCommand ?? (_addTransactionButtonClickCommand = new RelayCommand(AddTransactionButtonClickCommand_Execute, AddTransactionButtonClickCommand_CanExecute));
+
+        private bool AddTransactionButtonClickCommand_CanExecute()
+        {
+            if (AmountTextBoxTextNumberRepresentation < 0.01) return false;
+            if (string.IsNullOrWhiteSpace(DescriptionTextBoxText)) return false;
+            if (PersonComboBoxSelectedItem == null) return false;
+            if (DatePickerSelectedDate == null) return false;
+
+            return true;
+        }
+
+        private void AddTransactionButtonClickCommand_Execute()
+        {
+            if (AddTransactionButtonClickCommand_CanExecute())
+            {
+                try
+                {
+                    var person = App.Database.Get<Person>(PersonComboBoxSelectedItem.Id);
+                    App.Database.GetChildren(person);
+
+                    if (DatePickerSelectedDate != null)
+                        person.Transactions.Add(new Transaction
+                        {
+                            Amount = AmountTextBoxTextNumberRepresentation,
+                            Type = DialogMode,
+                            Description = DescriptionTextBoxText,
+                            PersonId = person.Id,
+                            Time = DatePickerSelectedDate.Value
+                        });
+
+                    App.Database.InsertOrReplaceWithChildren(person);
+                    RequestClose?.Invoke(null, null);
+                    App.Locator.MainView.UpdatePersonsList();
+                }
+                catch (Exception)
+                {
+                    MessageBox.Show("Something bad happened", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+                
+
+            }
+        }
+
+        #endregion
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Default constructor. </summary>
+        ///
+        /// <remarks>   Andre Beging, 10.09.2017. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public AddTransactionViewModel()
+        {
+            UpdatesPersonsComboBox();
+        }
+
+        #region UpdatesPersonsComboBox()
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Updates persons combo box. </summary>
+        ///
+        /// <remarks>   Andre Beging, 09.09.2017. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public void UpdatesPersonsComboBox()
+        {
+            var personList = App.Database.Table<Person>().OrderBy(x => x.FirstName).ToList();
+            PersonComboBoxItemSource = personList;
+        }
+
+        #endregion
+        #region SetModeSpecificStrings()
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Sets mode specific strings. </summary>
+        ///
+        /// <remarks>   Andre Beging, 09.09.2017. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public void SetModeSpecificStrings()
+        {
+            if (DialogMode == TransactionType.Deposit)
+            {
+                WindowTitle = "Add Deposit";
+            }
+
+            if (DialogMode == TransactionType.Charge)
+            {
+                WindowTitle = "Add Charge";
+            }
+
+            PersonComboBoxSelectedItem =
+                PersonComboBoxItemSource.FirstOrDefault(x => x.Id == PreselectedPerson?.Id);
+        }
+
+        #endregion
+        #region ClearView()
+
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// <summary>   Clears the view. </summary>
+        ///
+        /// <remarks>   Andre Beging, 09.09.2017. </remarks>
+        ////////////////////////////////////////////////////////////////////////////////////////////////////
+        public void ClearView()
+        {
+            AmountTextBoxText = string.Empty;
+            DescriptionTextBoxText = string.Empty;
+            PersonComboBoxSelectedItem = null;
+            DatePickerSelectedDate = DateTime.Now;
+        }
+
+        #endregion
+    }
+}